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Dietary supplement

Herb 206 Ingredients & Drug Interactions

by Wonder Laboratories

Herb 206 label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Herb 206 against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Herb 206 is a dietary supplement by Wonder Laboratories with 6 active ingredients. Its ingredients are commonly taken for water retention (diuretic), digestive upset, liver and gallbladder support.Based on those ingredients, 1,321 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Licorice Root Extract, Cascara Sagrada, Celery. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Herb 206 by Wonder Laboratories

Ask about any prescription or over-the-counter medication and we check it for interactions with Herb 206 by Wonder Laboratories — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Herb 206 by Wonder Laboratories

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 6 of its 6 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Herb 206 contains 6 active ingredients. Dandelion is included for its traditional use, though evidence for its effectiveness is insufficient.

Licorice Root Extract is thought to help with eczema and canker sores (possibly effective for both), while Celery is added despite insufficient evidence for the conditions it's traditionally used for. Cayenne (capsicum) is the one ingredient with solid support—it's likely effective for nerve pain after shingles and diabetic nerve damage, and possibly effective for cluster headaches and back pain.

Cascara Sagrada is a stimulant laxative with possibly ineffective evidence for bowel prep and insufficient evidence for constipation itself. Mexican Yam Root Extract rounds out the blend, though we hold no reliable effectiveness data for it.

The capsule itself contains inactive ingredients: gelatin, cellulose, magnesium stearate, and silica.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed

This product doesn't appear to be marketed for a specific use, so we graded its ingredients' overall clinical evidence instead.

Strong

Strong clinical evidence supports its ingredients for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredients' overall clinical evidence instead.
  • On file: Diabetic neuropathy — rated "Likely Effective" (Capsicum) (Natural Medicines).
  • On file: Postherpetic neuralgia — rated "Likely Effective" (Capsicum) (Natural Medicines).
  • On file: Cluster headache — rated "Possibly Effective" (Capsicum) (Natural Medicines).
  • On file: Nonallergic rhinitis — rated "Possibly Effective" (Capsicum) (Natural Medicines).
  • On file: Postoperative pain — rated "Possibly Effective" (Capsicum) (Natural Medicines).

Cayenne is the standout here—it's likely effective for postherpetic neuralgia (nerve pain after shingles) and diabetic neuropathy (nerve damage from diabetes), and possibly effective for cluster headaches, back pain, and nausea after surgery. Licorice Root Extract shows possibly effective evidence for eczema and canker sores.

The rest of the ingredients lack solid evidence: dandelion, celery, cascara sagrada, and Mexican yam root all carry insufficient or weak ratings for the conditions they're traditionally used for in this blend. If you're taking this product for pain relief, cayenne may deliver—but for the other uses, the science isn't there yet.

The evidence, ingredient by ingredient Dandelion Licorice Celery Capsicum Cascara Sagrada Wild Yam

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 6 of the 6 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 6 of 6.
  • General safety write-ups exist for 6 of 6.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Dandelion is generally well tolerated as food but concentrated supplement doses are less studied; the most common side effects are diarrhea, heartburn, and stomach discomfort, though allergic reactions including anaphylaxis are rare. Licorice Root Extract is fine in food amounts but high doses or long-term use of the active compound glycyrrhizin can cause serious problems; common side effects include headache, nausea, and vomiting.

Celery is generally safe as food but concentrated supplements carry allergy risk; it commonly causes photosensitivity (sun sensitivity) and rarely anaphylaxis. Cayenne commonly causes burning, bloating, gas, diarrhea, and heartburn, especially at higher doses, though serious side effects are rare.

Cascara Sagrada works short-term but long-term use carries real risks including potassium loss, liver damage, and blood in the urine. Mexican Yam Root Extract is generally well tolerated short-term but causes headache, fever, upset stomach, and vomiting, with rare anaphylaxis reported.

Pregnancy and breastfeeding: licorice is unsafe in pregnancy (glycyrrhizin has been linked to harm) and should be avoided while breastfeeding due to insufficient safety data. Celery seed in medicinal amounts should be avoided in pregnancy because it may affect the uterus, though food amounts are likely fine; avoid concentrated supplements while breastfeeding.

Cascara sagrada is not recommended during pregnancy, and its active compounds may pass into breast milk so it should be avoided while nursing. Dandelion, cayenne, and Mexican yam root have insufficient data—talk with your doctor or pharmacist before use if you're pregnant or breastfeeding.

Side effects, ingredient by ingredient Dandelion Licorice Celery Capsicum Cascara Sagrada Wild Yam

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 6 of the 6 matched ingredients can interact with medications — Dandelion, Cascara Sagrada, Licorice, Celery, Capsicum, among others.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications; heart-rhythm medications; lithium.
  • For scale: 1,322 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking Herb 206, double-check with your pharmacist if you're on blood thinners or anticoagulants (warfarin, aspirin, or antiplatelet drugs)—multiple ingredients raise bleeding risk. Heart medications like digoxin and lithium need checking too, as do blood pressure drugs, diabetes medications, thyroid medication (levothyroxine), and any drug your liver metabolizes heavily (the checker below will help identify those).

Avoid this product if you're on chemotherapy drugs like cisplatin or paclitaxel, or if you take theophylline, midazolam, or estrogen therapy without speaking to your doctor first.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with strong clinical evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

This is a multi-herb blend with real interaction potential, especially if you take blood thinners, heart medication, diabetes drugs, thyroid medication, or anything your liver processes heavily. Cayenne has solid evidence for certain types of nerve pain, but most of the other ingredients lack strong effectiveness data for what they're traditionally used for.

If you're pregnant, breastfeeding, or on any prescription medications—particularly anything cardiovascular, anticoagulant, or endocrine—check with your pharmacist or doctor before starting.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 6 of 6 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2024.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Herb 206, straight from the product label.

Brand Wonder Laboratories
Barcode (UPC) 099528206254
Net contents 250 Capsule(s)
Market status On market
Date entered into DSLD Sep 25, 2024
DSLD ID 315403
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Herb 206 by Wonder Laboratories, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
250
UPC/BARCODE
099528206254
IngredientAmount% DV
Dandelion167 mg--
Licorice Root Extract42 mg--
Celery42 mg--
Cayenne21 mg--
Cascara Sagrada42 mg--
Mexican Yam Root Extract11 mg--

Other ingredients: Gelatin, Cellulose, Magnesium Stearate, Silica

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Precautions

Tamper evident: Do not use this product if imprinted foil seal under cap is broken or missing.

Notice: This product contains cascara. Read and follow directions carefully. Do not use if you have or develop diarrhea, loose stools, or abdominal pain because cascara may worsen these conditions and be harmful to your health.

Consult your physician if you have frequent diarrhea or if you are pregnant, nursing, taking medication, or have a medical condition.

Keep out of reach of children.

Formulation

Mfg. in an FDA Registered Facility using Good Manufacturing Practices (GMPs)

Conforms to USP <2091> for weight. Meets USP <2040> disintegration for maximum bioavailability.

Nutritionally supports healthy liver function

Gluten free

Made in USA

Storage

Keep tightly closed. Store at temperature: 59 Degrees - 86 Degrees F (15 Degrees - 30 Degrees C).

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

General Statements

Formula 206

FDA Statement of Identity

Herbal Supplement

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, take 1 capsule three times daily with a large glass of water.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Herb 206 by Wonder Laboratories label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Herb 206 label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Herb 206 by Wonder Laboratories

These are the 6 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container250 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Dandelion

Interacts with
457 drugs
167 mg per serving

Dandelion is a common plant used in food and traditional medicine, often promoted as a natural 'water pill' and digestive aid. Human evidence for thes...

Dandelion monograph & interactions

Licorice Root Extract

Interacts with
1,040 drugs
42 mg per serving

Licorice root is a traditional remedy used for sore throats, coughs, and digestive complaints, but solid human evidence is limited for most uses. Regu...

Licorice Root Extract monograph & interactions

Celery

Interacts with
651 drugs
42 mg per serving

Celery is a common vegetable that is also taken as a seed extract or oil supplement, mainly for blood pressure, fluid retention, and joint discomfort....

Celery monograph & interactions

Cayenne

Interacts with
239 drugs
21 mg per serving

Capsicum (chili pepper) contains capsaicin, which is best known and best studied as a topical treatment for certain types of pain. Topical capsaicin p...

Cayenne monograph & interactions

Cascara Sagrada

Interacts with
745 drugs
42 mg per serving

Cascara sagrada is a stimulant laxative made from the aged bark of a Pacific Northwest tree, used mainly for short-term relief of constipation. Becaus...

Cascara Sagrada monograph & interactions

Mexican Yam Root Extract

Interacts with
41 drugs
11 mg per serving

Wild yam is a root traditionally used for menopausal symptoms, cramps, and as a so-called 'natural' hormone supplement, but solid human evidence for t...

Mexican Yam Root Extract monograph & interactions

Other (inactive) ingredients: Gelatin, Cellulose, Magnesium Stearate, Silica. These complete the product’s ingredient list but are not active constituents.

Interaction report

Herb 206 by Wonder Laboratories Drug Interactions

Want to check YOUR meds against Herb 206?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
1,321Drugs
1,225 Moderate 96 Minor

Ingredients driving the most interactions

Licorice Root Extract 1,040
Cascara Sagrada 745
Celery 651
Dandelion 457
Cayenne 239

Individual Drug Interactions

The ingredients in Herb 206 interact with 1,321 drugs. Click any drug to see the details.

6 of the 6 ingredients in Herb 206 interact with drugs. Each result below shows which ingredient is responsible. Licorice Root Extract Cascara Sagrada Celery Dandelion Cayenne Mexican Yam Root Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Herb 206 with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Licorice Root Extract18 drug types · 1,040 drugs

Antihypertensive Drugs

Theoretically, licorice might reduce the effects of antihypertensive drugs.
In human research, licorice increases blood pressure in a dose-dependent manner.

Likelihood Possible Evidence B
Cisplatin (Platinol-Aq)

Theoretically, licorice might reduce the effects of cisplatin.
In animal research, licorice diminished the therapeutic efficacy of cisplatin.

Likelihood Possible Evidence D
Corticosteroids

Theoretically, concomitant use of licorice and corticosteroids might increase the side effects of corticosteroids.
Case reports suggest that concomitant use of licorice and oral corticosteroids, such as hydrocortisone, can potentiate the duration of activity and increase blood levels of corticosteroids. Additionally, in one case report, a patient with neurogenic orthostatic hypertension stabilized on fludrocortisone 0.1 mg twice daily developed pseudohyperaldosteronism after recent consumption of large amounts of black licorice.

Likelihood Possible Evidence D
Cytochrome P450 2B6 (Cyp2B6) Substrates

Theoretically, licorice might increase levels of drugs metabolized by CYP2B6.
In vitro research shows that licorice extract and glabridin, a licorice constituent, inhibit CYP2B6 isoenzymes. Licorice extract from the species G. uralensis seems to inhibit CYP2B6 isoenzymes to a greater degree than G. glabra extract in vitro. Theoretically, these species of licorice might increase levels of drugs metabolized by CYP2B6; however, these interactions have not yet been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, licorice might increase levels of drugs metabolized by CYP2C19.
In vitro, licorice extracts from the species G. glabra and G. uralensis inhibit CYP2C19 isoenzymes in vitro. Theoretically, these species of licorice might increase levels of drugs metabolized by CYP2C19; however, this interaction has not yet been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C8 (Cyp2C8) Substrates

Theoretically, licorice might increase levels of drugs metabolized by CYP2C8.
In vitro, licorice extract from the species G. glabra and G. uralensis inhibits CYP2C8 isoenzymes. Theoretically, these species of licorice might increase levels of drugs metabolized by CYP2C8; however, this interaction has not yet been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, licorice might increase or decrease levels of drugs metabolized by CYP2C9.
There is conflicting evidence about the effect of licorice on CYP2C9 enzyme activity. In vitro research shows that extracts from the licorice species G. glabra and G. uralensis moderately inhibit CYP2C9 isoenzymes. However, evidence from an animal model shows that licorice extract from the species G. uralensis can induce hepatic CYP2C9 activity. Until more is known, licorice should be used cautiously in people taking CYP2C9 substrates.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, licorice might increase or decrease levels of drugs metabolized by CYP3A4.
Pharmacokinetic research shows that the licorice constituent glycyrrhizin, taken in a dosage of 150 mg orally twice daily for 14 days, modestly decreases the area under the concentration-time curve of midazolam by about 20%. Midazolam is a substrate of CYP3A4, suggesting that glycyrrhizin modestly induces CYP3A4 activity. Animal research also shows that licorice extract from the species G. uralensis induces CYP3A4 activity. However, licorice extract from G. glabra species appear to inhibit CYP3A4-induced metabolism of testosterone in vitro. It is thought that the G. glabra inhibits CYP3A4 due to its constituent glabridin, which is a moderate CYP3A4 inhibitor in vitro and not present in other licorice species. Until more is known, licorice should be used cautiously in people taking CYP3A4 substrates.

Likelihood Possible Evidence B
Digoxin (Lanoxin)

Theoretically, concomitant use of licorice with digoxin might increase the risk of cardiac toxicity.
Overuse or misuse of licorice with cardiac glycoside therapy might increase the risk of cardiac toxicity due to potassium loss.

Likelihood Possible Evidence D
Diuretic Drugs

Theoretically, concomitant use of licorice with diuretic drugs might increase the risk of hypokalemia.
Overuse of licorice might compound diuretic-induced potassium loss. In one case report, a 72-year-old male with a past medical history of hypertension, type 2 diabetes, hyperlipidemia, arrhythmia, stroke, and hepatic dysfunction was hospitalized with severe hypokalemia and uncontrolled hypertension due to pseudohyperaldosteronism. This was thought to be provoked by concomitant daily consumption of a product containing 225 mg of glycyrrhizin, a constituent of licorice, and hydrochlorothiazide 12.5 mg for 1 month.

Likelihood Possible Evidence D
Estrogens

Theoretically, licorice might increase or decrease the effects of estrogen therapy.
Theoretically, licorice might interfere with estrogen therapy due to estrogenic and anti-estrogenic effects.

Likelihood Possible Evidence D
Loop Diuretics

Theoretically, loop diuretics might increase the mineralocorticoid effects of licorice.
Theoretically, loop diuretics might enhance the mineralocorticoid effects of licorice by inhibiting the enzyme that converts cortisol to cortisone; however, bumetanide (Bumex) does not appear to have this effect.

Likelihood Possible Evidence D
Midazolam (Versed)

Theoretically, licorice might decrease levels of midazolam.
In humans, the licorice constituent glycyrrhizin appears to moderately induce the metabolism of midazolam. This is likely due to induction of cytochrome P450 3A4 by licorice. Until more is known, licorice should be used cautiously in people taking midazolam.

Likelihood Possible Evidence B
P-Glycoprotein Substrates

Theoretically, licorice might decrease the absorption of P-glycoprotein substrates.
In vitro research shows that licorice can increase P-glycoprotein activity.

Likelihood Possible Evidence D
Paclitaxel (Abraxane, Onxol)

Theoretically, licorice might decrease plasma levels and clinical effects of paclitaxel.
Multiple doses of licorice taken concomitantly with paclitaxel might reduce the effectiveness of paclitaxel. Animal research shows that licorice 3 grams/kg given orally for 14 days before intravenous administration of paclitaxel decreases the exposure to paclitaxel and increases its clearance. Theoretically, this occurs because licorice induces cytochrome P450 3A4 enzymes, which metabolize paclitaxel. Notably, a single dose of licorice did not affect exposure or clearance of paclitaxel.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, licorice might decrease plasma levels and clinical effects of warfarin.
Licorice seems to increase metabolism and decrease levels of warfarin in animal models. This is likely due to induction of cytochrome P450 2C9 (CYP2C9) metabolism by licorice. Advise patients taking warfarin to avoid taking licorice.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, licorice might decrease the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that licorice induces CYP1A2 enzymes.

Likelihood Possible Evidence D
Methotrexate (Trexall, Others)

Theoretically, licorice might increase levels of methotrexate.
Animal research suggests that intravenous administration of glycyrrhizin, a licorice constituent, and high-dose methotrexate may delay methotrexate excretion and increase systemic exposure, leading to transient elevations in liver enzymes and total bilirubin. This interaction has not yet been reported in humans.

Likelihood Unlikely Evidence D
Licorice Root Extract full monograph & interactions

Cascara Sagrada6 drug types · 745 drugs

Corticosteroids

Theoretically, cascara sagrada might increase the risk of hypokalemia when taken with corticosteroids.
Cascara sagrada has stimulant laxative effects, and long-term use has been associated with hypokalemia.

Likelihood Possible Evidence D
Digoxin (Lanoxin)

Theoretically, cascara sagrada might cause hypokalemia, potentially increasing the risk of digoxin toxicity.
Cascara sagrada has stimulant laxative effects, and long-term use has been associated with hypokalemia.

Likelihood Possible Evidence D
Diuretic Drugs

Theoretically, cascara sagrada might increase the risk of hypokalemia when taken with diuretic drugs.
Cascara sagrada has stimulant laxative effects, and long-term use has been associated with hypokalemia.

Likelihood Possible Evidence D
Stimulant Laxatives

Theoretically, cascara sagrada might have additive adverse effects when taken with stimulant laxatives.
Cascara sagrada has stimulant laxative effects and might compound fluid and electrolyte losses when taken with stimulant laxatives.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, cascara sagrada might increase the risk of bleeding when taken with warfarin.
Cascara sagrada has stimulant laxative effects. In some people, cascara sagrada can cause diarrhea. Diarrhea can increase the effects of warfarin, increase international normalized ratio (INR), and increase the risk of bleeding.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, cascara sagrada might decrease the effects of CYP3A4 substrates.
In vitro research suggests that cascara sagrada can induce CYP3A4 enzymes, albeit to a much lower degree than rifampin, a known CYP3A4 inducer.

Likelihood Possible Evidence D
Cascara Sagrada full monograph & interactions

Celery8 drug types · 651 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, celery root might increase the risk of bleeding when taken with anticoagulant/antiplatelet drugs.
Celery root contains the constituents falcarinol and falcarindiol. Laboratory research suggests that these constituents can inhibit platelet aggregation. This effect has not been reported in humans.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, celery seed extract might have additive effects with antihypertensive drugs.
Clinical research suggests that taking celery seed extract may reduce daytime systolic blood pressure by about 12 mmHg compared to less than 1 mmHg with placebo.

Likelihood Probable Evidence B
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, celery might increase levels of drugs metabolized by CYP1A2.
In vitro and animal research suggests that constituents of celery can inhibit CYP1A2. This effect has not been reported in humans.

Likelihood Possible Evidence D
Levothyroxine (Synthroid, Others)

Theoretically, celery seed might decrease the effects of levothyroxine.
Several cases of hypothyroidism with low T4 levels have been reported in people who were previously stabilized on levothyroxine and then started taking celery seed tablets. They presented with symptoms such as lethargy, bloating, and dry skin, and recovered when celery seed was stopped. However, celery stem and leaf has been associated with case reports of hyperthyroidism in patients with no pre-existing thyroid disorders.

Likelihood Possible Evidence D
Lithium

Theoretically, celery might reduce excretion and increase levels of lithium due to potential diuretic effects.
Celery is thought to have diuretic properties. However, this effect has not been confirmed in humans.

Likelihood Probable Evidence D
Venlafaxine (Effexor)

Theoretically, celery root extract might increase blood levels of venlafaxine.
There is one case report of a patient who experienced medication-induced bipolar disorder after beginning to take celery root extract 1000 mg daily along with venlafaxine 75 mg and St. John's wort 600 mg daily. Symptoms included confusion, speech abnormalities, manic affect, and visual hallucinations. The plasma level of venlafaxine was 476.8 ng/mL (normal range 195-400 ng/mL). It is theorized that celery root increased venlafaxine levels by inhibiting cytochrome P450 2D6.

Likelihood Possible Evidence D
Acetaminophen (Tylenol, Others)

Theoretically, celery juice might increase the effects and side effects of acetaminophen.
Animal research suggests that concomitant use of celery juice plus acetaminophen prolongs the effects of acetaminophen. This effect has been attributed to a decrease in hepatic cytochrome P450 activity. However, other animal research shows that pretreatment with celery root extract protects against acetaminophen-induced acute liver failure. These effects have not been reported in humans.

Likelihood Possible Evidence D
Photosensitizing Drugs

Theoretically, celery might increase the risk of photosensitivity reactions when taken with photosensitizing drugs.
Laboratory research shows that celery contains photosensitizing agents such as phenols and psoralens.

Likelihood Possible Evidence D
Celery full monograph & interactions

Dandelion7 drug types · 457 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, taking dandelion root along with anticoagulant or antiplatelet drugs might increase the risk of bruising and bleeding.
In vitro research suggests that dandelion root inhibits platelet aggregation.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, dandelion might increase the risk for hypoglycemia when used with antidiabetes drugs.
Laboratory research suggests that dandelion extract may have moderate alpha-glucosidase inhibitor activity and might also increase insulin secretion. Also, in a case report, a 58-year-old woman with type 2 diabetes who was being treated with insulin developed hypoglycemia 2 weeks after beginning to eat salads containing dandelion.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, dandelion might increase levels of drugs metabolized by CYP1A2.
Laboratory research suggests that dandelion might inhibit CYP1A2. So far, this interaction has not been reported in humans. However, until more is known, watch for an increase in the levels of drugs metabolized by CYP1A2 in patients taking dandelion.

Likelihood Possible Evidence D
Glucuronidated Drugs

Theoretically, dandelion might increase the clearance of drugs that are UDP-glucuronosyltransferase substrates.
There is some preliminary evidence that dandelion might induce UDP-glucuronosyltransferase, a phase II enzyme.

Likelihood Possible Evidence D
Lithium

Theoretically, through diuretic effects, dandelion might reduce excretion and increase levels of lithium.
Animal research suggests that dandelion has diuretic properties. As diuretics can increase serum lithium levels, the dose of lithium might need to be decreased when taken with dandelion.

Likelihood Probable Evidence D
Potassium-Sparing Diuretics

Theoretically, dandelion might increase the risk of hyperkalemia when taken with potassium-sparing diuretics.
Dandelion contains significant amounts of potassium.

Likelihood Possible Evidence D
Quinolone Antibiotics

Theoretically, dandelion might lower fluoroquinolone levels.
Animal research shows that dandelion reduces absorption of ciprofloxacin and can lower levels by 73%. However, this effect has not been reported in humans.

Likelihood Possible Evidence D
Dandelion full monograph & interactions

Cayenne6 drug types · 239 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, capsicum may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro research shows that capsicum might increase the effects of antiplatelet drugs. Also, population research shows that capsicum is associated with an increased risk of self-reported bleeding in patients taking warfarin. However, clinical research shows that taking a single dose of capsaicin (Asian Herbex Ltd.), the active ingredient in capsicum, 400-800 mcg orally in combination with aspirin 500 mg does not decrease platelet aggregation when compared with taking aspirin 500 mg alone. Also, there was no notable effect on measures of platelet aggregation with capsaicin. It is unclear whether capsaicin must be used in more than a single dose to affect platelet aggregation.

Likelihood Possible Evidence B
Antidiabetes Drugs

Theoretically, taking capsicum with antidiabetes drugs might increase the risk of hypoglycemia.
Preliminary clinical research shows that consuming capsicum 5 grams along with a glucose drink attenuates the rise in plasma glucose after 30 minutes by 21%, decreases the 2-hour postprandial area under the curve of plasma glucose by 11%, and increases the 2-hour postprandial area under the curve of plasma insulin by 58% in healthy individuals when compared with placebo. Other clinical research shows that taking capsicum 5 mg daily for 28 days significantly reduces postprandial blood glucose and insulin levels, but not fasting blood glucose and insulin levels, in patients with gestational diabetes.

Likelihood Possible Evidence B
Aspirin

Theoretically, taking capsicum with aspirin might reduce the bioavailability of aspirin.
Animal research shows that acute or chronic intake of capsicum pepper reduces oral aspirin bioavailability. This has not been shown in humans.

Likelihood Possible Evidence D
Theophylline

Theoretically, taking capsicum with theophylline might increase the levels and adverse effects of theophylline.
In animal research, oral administration of capsicum reduced excretion of theophylline. However, capsicum does not seem to affect the pharmacokinetics of theophylline when administered intravenously.

Likelihood Possible Evidence D
Ace Inhibitors (Aceis)

Theoretically, using topical capsaicin may increase the risk of ACE inhibitor-induced cough.
There is one case report of a topically applied capsaicin cream contributing to the cough reflex in a patient using an ACEI. However, it is unclear if this interaction is clinically significant.

Likelihood Unlikely Evidence D
Ciprofloxacin (Cipro)

Theoretically, taking capsicum with ciprofloxacin might increase levels and adverse effects of ciprofloxacin.
Animal research shows that concomitant use of capsaicin, the active constituent of capsicum, and ciprofloxacin increases the bioavailability of ciprofloxacin by up to 70%.

Likelihood Possible Evidence D
Cayenne full monograph & interactions

Mexican Yam Root Extract1 drug type · 41 drugs

Estrogens

Theoretically, wild yam might increase or decrease the effects of estrogen.
Wild yam root shows estrogenic and anti-estrogenic effects in vitro. Theoretically, wild yam might interfere with hormone therapy.

Likelihood Possible Evidence D
Mexican Yam Root Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Herb 206, from the product label.

Wonder Laboratories

See all Wonder Laboratories products
Name
Wonder Laboratories
Street Address
115 S.C.T. Ct.
City
White House
State
TN
ZipCode
37188
Pharmacist Counseling Corner

Herb 206 by Wonder Laboratories: Common Questions

Does Herb 206 by Wonder Laboratories interact with any medications?
Yes. Based on its ingredients, Herb 206 has a known interaction with 1,321 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Herb 206 contains 6 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take this if I'm on a blood thinner like warfarin?
No, not without talking to your pharmacist or doctor first. Dandelion, celery, cayenne, and cascara sagrada all theoretically increase bleeding risk with warfarin and other blood thinners. Licorice can also make warfarin less effective. This is a serious interaction and needs personalized medical advice.
Does cayenne in this product actually work for pain?
Cayenne shows solid evidence for nerve pain after shingles and diabetic nerve damage—it's likely effective for those. For cluster headaches and back pain it's possibly effective, and possibly effective for nausea after surgery. The other ingredients in the blend, though, lack strong evidence.
Is it safe to take this long-term?
Not without caution. Cascara sagrada carries real risks with long-term use including potassium loss, liver damage, and blood in the urine. Licorice at supplement strength over time can cause serious problems. The safety data for most of these ingredients over months or years just isn't solid. Talk to your pharmacist about how long you plan to use it.
What are the most common side effects I might feel?
The most likely are from cascara sagrada and cayenne: mild abdominal cramps, diarrhea, gas, bloating, burning, and heartburn. Dandelion may cause stomach upset. Licorice can cause headache, nausea, or vomiting. If you're sensitive to plants in the daisy family, celery or dandelion could trigger allergic reactions.
Can I take this while pregnant or breastfeeding?
Licorice and cascara sagrada should be avoided in pregnancy—licorice has been linked to harm and cascara isn't recommended for pregnant people. Celery seed in medicinal doses should also be avoided in pregnancy. Dandelion, cayenne, and Mexican yam root don't have enough safety data either way, so talk with your doctor or pharmacist for personalized advice before use.
Does this contain any fillers or other ingredients besides the herbs?
Yes. Besides the six active herbs, the capsule contains gelatin, cellulose, magnesium stearate, and silica as inactive ingredients—those are the capsule material and binding agents that hold it together.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Herb 206 label
Go deeper

The Full Monographs Behind Herb 206’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Dandelion

Interacts with 457 drugs

Dandelion is a common plant used in food and traditional medicine, often promoted as a natural 'water pill' and digestive aid. Human evidence for these uses is very limited, so its benefits...

Read the full Dandelion monograph → Herb & supplement monograph

Licorice

Interacts with 1,040 drugs

Licorice root is a traditional remedy used for sore throats, coughs, and digestive complaints, but solid human evidence is limited for most uses. Regular licorice contains glycyrrhizin, whic...

Read the full Licorice monograph → Herb & supplement monograph

Celery

Interacts with 651 drugs

Celery is a common vegetable that is also taken as a seed extract or oil supplement, mainly for blood pressure, fluid retention, and joint discomfort. Human evidence for these supplement use...

Read the full Celery monograph → Herb & supplement monograph

Capsicum

Interacts with 239 drugs

Capsicum (chili pepper) contains capsaicin, which is best known and best studied as a topical treatment for certain types of pain. Topical capsaicin products are supported by reasonable evid...

Read the full Capsicum monograph → Herb & supplement monograph

Cascara Sagrada

Interacts with 745 drugs

Cascara sagrada is a stimulant laxative made from the aged bark of a Pacific Northwest tree, used mainly for short-term relief of constipation. Because it can cause cramping, dehydration, an...

Read the full Cascara Sagrada monograph → Herb & supplement monograph

Wild Yam

Interacts with 41 drugs

Wild yam is a root traditionally used for menopausal symptoms, cramps, and as a so-called 'natural' hormone supplement, but solid human evidence for these uses is lacking. Despite popular cl...

Read the full Wild Yam monograph →
Sources

Sources & How We Checked

Herb 206's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 272 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Dandelion 27 references
  1. Maliakal PP, Wanwimolruk S. Effect of herbal teas on hepatic drug metabolizing enzymes in rats. J Pharm Pharmacol 2001;53:1323-9. PubMed
  2. Williams CA, Goldstone F, Greenham J. Flavonoids, cinnamic acids and coumarins from the different tissues and medicinal preparations of Taraxacum officinale. Phytochemistry 1996;42:121-7. PubMed
  3. Hussain Z, Waheed A, Qureshi RA, et al. The effect of medicinal plants of Islamabad and Murree region of Pakistan on insulin secretion from INS-1 cells. Phytother Res 2004;18:73-7. PubMed
  4. Racz-Kotilla E, Racz G, Solomon A. The action of Taraxacum officinale extracts on the body weight and diuresis of laboratory animals. Planta Med 1974;26:212-7. PubMed
  5. Zhu M, Wong PY, Li RC. Effects of taraxacum mongolicum on the bioavailability and disposition of ciprofloxacin in rats. J Pharm Sci 1999;88:632-4. PubMed
  6. Jovanovic M, Mimica-Dukic N, Poljacki M, Boza P. Erythema multiforme due to contact with weeds: a recurrence after patch testing. Contact Dermatitis 2003;48:17-25. PubMed
  7. Chivato T, Juan F, Montoro A, Laguna R. Anaphylaxis induced by ingestion of a pollen compound. J Investig Allergol Clin Immunol 1996;6:208-9.
  8. Cohen SH, Yunginger JW, Rosenberg N, Fink JN. Acute allergic reaction after composite pollen ingestion. J Allergy Clin Immunol 1979;64:270-4. PubMed
  9. Lovell CR, Rowan M. Dandelion dermatitis. Contact Dermatitis 1991;25:185-8. PubMed
  10. Agarwal SC, Crook JR, Pepper CB. Herbal remedies -- how safe are they? A case report of polymorphic ventricular tachycardia/ventricular fibrillation induced by herbal medication used for obesity. Int J Cardiol 2006;106:260-1. PubMed
  11. Martín-Muñoz MF, Bartolome B, Caminoa M, et al. Bee pollen: a dangerous food for allergic children. Identification of responsible allergens. Allergol Immunopathol (Madr) 2010;38:263-5. PubMed
  12. Neef H, Cilli F, Declerck PJ, et al. Platelet anti-aggregating activity of Taraxacum officinale Weber. Phytotherapy Research 1996;10:s138-s140.
  13. Cuzzolin L, Zaffani S, and Benoni G. Safety implications regarding use of phytomedicines. Eur.J Clin Pharmacol. 2006;62:37-42. PubMed
  14. Posadzki, P., Watson, L. K., and Ernst, E. Adverse effects of herbal medicines: an overview of systematic reviews. Clin Med 2013;13(1):7-12. PubMed
  15. Wakelin, S. H., Marren, P., Young, E., and Shaw, S. Compositae sensitivity and chronic hand dermatitis in a seven-year-old boy. Br J Dermatol 1997;137(2):289-291. PubMed
  16. Ingber, A. Seasonal allergic contact dermatitis from Taraxacum officinale (dandelion) in an Israeli florist. Contact Dermatitis 2000;43(1):49.
  17. Rodriguez, B., Rodriguez, A., de Barrio, M., Tornero, P., and Baeza, M. L. Asthma induced by canary food mix. Allergy Asthma Proc. 2003;24(4):265-268.
  18. Syhaieva, I. A. [Efficiency of specific immunotherapy in treatment of patients with seasonal allergic rhinitis]. Lik.Sprava. 2006;(1-2):51-53.
  19. Catania, M. A., Oteri, A., Caiello, P., Russo, A., Salvo, F., Giustini, E. S., Caputi, A. P., and Polimeni, G. Hemorrhagic cystitis induced by an herbal mixture. South.Med.J. 2010;103(1):90-92. PubMed
  20. Goksu, E., Eken, C., Karadeniz, O., and Kucukyilmaz, O. First report of hypoglycemia secondary to dandelion (Taraxacum officinale) ingestion. Am J Emerg.Med 2010;28(1):111-112. PubMed
  21. Fernandez-Gonzalez, D., Gonzalez-Parrado, Z., Vega-Maray, A. M., Valencia-Barrera, R. M., Camazon-Izquierdo, B., De, Nuntiis P., and Mandrioli, P. Platanus pollen allergen, Pla a 1: quantification in the atmosphere and influence on a sensitizing populati
  22. Liang, K. L., Su, M. C., Shiao, J. Y., Wu, S. H., Li, Y. H., and Jiang, R. S. Role of pollen allergy in Taiwanese patients with allergic rhinitis. J Formos.Med Assoc. 2010;109(12):879-885. PubMed
  23. Yang, Y., Zhao, Y., Wang, C. S., Wang, X. D., and Zhang, L. [Prevalence of sensitization to aeroallergens in 10 030 patients with allergic rhinitis]. Zhonghua Er.Bi Yan.Hou Tou.Jing.Wai Ke Za Zhi 2011;46(11):914-920.
  24. Davies, M. G. and Kersey, P. J. Contact allergy to yarrow and dandelion. Contact Dermatitis 1986;14(4):256-257. PubMed
  25. Collins JM and Miller DR. Dandelion green bezoar following antrectomy and vagotomy - case report. J Kansas Med Soc 1966;67(6):303-304.
  26. Moriarty B, Pinney JH, Owen-Casey MP, Rustin MH, Deroide F, Laing C, Davenport A. Digital necrosis from dandelion tea. Br J Dermatol. 2013 Jul;169(1):227-30. PubMed
  27. Onal S, Timur S, Okutucu B, Zihnioglu F. Inhibition of alphaglucosidase by aqueous extracts of some potent antidiabetic medicinal herbs. Prep Biochem Biotechnol 2005;35:29-36.

See these in context on the Dandelion monograph →

Licorice 92 references
  1. Farese RV Jr, Biglieri EG, Shackleton CH, et al. Licorice-induced hypermineralocorticoidism. N Engl J Med 1991;325:1223-7. PubMed
  2. Sigurjonsdottir HA, Ragnarsson J, Franzson L, Sigurdsson G. Is blood pressure commonly raised by moderate consumption of liquorice? J Hum Hypertens 1995;9:345-8.
  3. Armanini D, Lewicka S, Pratesi C, et al. Further studies on the mechanism of the mineralocorticoid action of licorice in humans. J Endocrinol Invest 1996;19:624-9. PubMed
  4. Zhang YD, Lorenzo B, Reidenberg MM. Inhibition of 11 beta hydroxysteroid dehydrogenase obtained from guinea pig kidney by furosemide, naringenin and some other compounds. J Steroid Biochem Mol Biol 1994;49:81-5.
  5. Strandberg TE, Jarvenpaa AL, Vanhanen H, McKeigue PM. Birth outcome in relation to licorice consumption during pregnancy. Am J Epidemiol 2001;153:1085-8. PubMed
  6. Sigurjonsdottir HA, Franzson L, Manhem K, et al. Liquorice-induced rise in blood pressure: a linear dose-response relationship. J Hum Hypertens 2001;15:549-52. PubMed
  7. Amato P, Christophe S, Mellon PL. Estrogenic activity of herbs commonly used as remedies for menopausal symptoms. Menopause 2002;9:145-50. PubMed
  8. Kent UM, Aviram M, Rosenblat M, Hollenberg PF. The licorice root derived isoflavan glabridin inhibits the activities of human cytochrome P450S 3A4, 2B6, and 2C9. Drug Metab Dispos 2002;30:709-15.. PubMed
  9. Yoshida S, Takayama Y. Licorice-induced hypokalemia as a treatable cause of dropped head syndrome. Clin Neurol Neurosurg 2003;105:286-7.. PubMed
  10. Strandberg TE, Andersson S, Jarvenpaa AL, et al. Preterm birth and licorice consumption during pregnancy. Am J Epidemiol 2002;156:803-5.. PubMed
  11. Hussain RM. The sweet cake that reaches parts other cakes can't! Postgrad Med J 2003;79:115-6.. PubMed
  12. Morris DJ, Davis E, Latif SA. Licorice, tobacco chewing, and hypertension. N Engl J Med 1990;322:849-50. PubMed
  13. Quinkler M, Stewart PM. Hypertension and the cortisol-cortisone shuttle. J Clin Endocrinol Metab 2003;88:2384-92. PubMed
  14. Westman EC, Guthrie GP. Licorice, tobacco chewing, and hypertension. N Engl J Med 1990;322:850. PubMed
  15. Mu Y, Zhang J, Zhang S, et al. Traditional Chinese medicines Wu Wei Zi (Schisandra chinensis Baill) and Gan Cao (Glycyrrhiza uralensis Fisch) activate pregnane X receptor and increase warfarin clearance in rats. J Pharmacol Exp Ther 2006;316:1369-77. PubMed
  16. Yasue H, Itoh T, Mizuno Y, Harada E. Severe hypokalemia, rhabdomyolysis, muscle paralysis, and respiratory impairment in a hypertensive patient taking herbal medicines containing licorice. Intern Med 2007;46:575-8. PubMed
  17. Brayley J, Jones J. Life-threatening hypokalemia associated with excessive licorice ingestion (letter). Am J Psychiatry 1994;151:617-8. PubMed
  18. de Klerk GJ, Nieuwenhuis G, Beutler JJ. Hypokalaemia and hypertension associated with use of liquorice flavoured chewing gum. BMJ 1997;314:731-2.
  19. Dellow EL, Unwin RJ, Honour JW. Pontefract cakes can be bad for you: refractory hypertension and liquorice excess. Nephol Dial Transplant 1999;14:218-20. PubMed
  20. Elinav E, Chajek-Shaul T. Licorice consumption causing severe hypokalemic paralysis. Mayo Clin Proc 2003;78:767-8. PubMed
  21. Eriksson JW, Carlberg B, Hillom V. Life-threatening ventricular tachycardia due to liquorice-induced hypokalemia. J Intern Med 1999;245:307-10.
  22. Janse A, van Iersel M, Hoefnagels WH, Olde Rikker MG. The old lady who liked liquorice: hypertension due to chronic intoxication in a memory-impaired patient. Neth J Med 2005;63:149-50.
  23. Lin SH, Yang SS, Chau T, Halperin ML. An unusual cause of hypokalemic paralysis: chronic licorice ingestion. Am J Med Sci 2003;325:153-6. PubMed
  24. van den Bosch AE, van der Klooster JM, Zuidgeest DM, et al. Severe hypokalemic paralysis and rhabdomyolysis due to ingestion of liquorice. Neth J Med 2005;63:146-8.
  25. van Uum SH. Liquorice and hypertension. Neth J Med 2005;63:119-20.
  26. Russo S, Mastropasqua M, Mosetti MA, et al. Low doses of liquorice can induce hypertension encephalopathy. Am J Nephrol 2000;20:145-8. PubMed
  27. Stormer FC, Reistad R, Alexander J. Glycyrrhizic acid in liquorice - evaluation of health hazard. Food Chem Toxicol 1993;31:303-12. PubMed
  28. Sontia B, Mooney J, Gaudet L, Touyz RM. Pseudohyperaldosteronism, liquorice, and hypertension. J Clin Hypertens (Greenwich) 2008;10:153-7. PubMed
  29. Francini-Pesenti F, Puato M, Piccoli A, Brocadello F. Liquorice-induced hypokalaemia and water retention in the absence of hypertension. Phytother Res 2008;22:563-5. PubMed
  30. Lapi F, Gallo E, Bernasconi S, et al. Myopathies associated with red yeast rice and liquorice: spontaneous reports from the Italian Surveillance System of Natural Health Products. Br J Clin Pharmacol 2008;66:572-4. PubMed
  31. Chen MF, Shimada F, Kato H, Yano S, Kanaoka M. Effect of glycyrrhizin on the pharmacokinetics of prednisolone following low dosage of prednisolone hemisuccinate. Endocrinol Jpn 1990;37:331-41. PubMed
  32. Teelucksingh S, Mackie AD, Burt D, McIntyre MA, Brett L, Edwards CR. Potentiation of hydrocortisone activity in skin by glycyrrhetinic acid. Lancet 1990;335(8697):1060-3. PubMed
  33. Heidemann HT, Kreuzfelder E. Hypokalemic rhabdomyolysis with myoglobinuria due to licorice ingestion and diuretic treatment. Klin Wochenschr 1983;61:303-5. PubMed
  34. Hukkanen J, Ukkola O, Savolainen MJ. Effects of low-dose liquorice alone or in combination with hydrochlorothiazide on the plasma potassium in healthy volunteers. Blood Press 2009;18:192-5. PubMed
  35. Bisogni V, Rossi GP, Calò LA. Apparent mineralcorticoid excess syndrome, an often forgotten or unrecognized cause of hypokalemia and hypertension: case report and appraisal of the pathophysiology. Blood Press. 2014 Jun;23(3):189-92. PubMed
  36. Dehours E, Vallé B, Rougé-Bugat ME, Florent B, Bounes V, Franchitto N. Suspected hypokalaemia following liquorice ingestion on board ship. J Telemed Telecare. 2013 Jun;19(4):227-8. PubMed
  37. Kormann R, Languille E, Amiot HM, Hertig A. Dying for a cup of tea. BMJ Case Rep. 2012 Oct 19;2012. PubMed
  38. Panduranga P, Al-Rawahi N. Licorice-induced severe hypokalemia with recurrent torsade de pointes. Ann Noninvasive Electrocardiol. 2013 Nov;18(6):593-6. PubMed
  39. Räikkönen K, Seckl JR, Heinonen K, Pyhälä R, Feldt K, Jones A, Pesonen AK, Phillips DI, Lahti J, Järvenpää AL, Eriksson JG, Matthews KA, Strandberg TE, Kajantie E. Maternal prenatal licorice consumption alters hypothalamic-pituitary-adrenocortical axis fu
  40. Robles BJ, Sandoval AR, Dardon JD, Blas CA. Lethal liquorice lollies (liquorice abuse causing pseudohyperaldosteronism). BMJ Case Rep. 2013 Sep 19;2013. PubMed
  41. Chamberlain, J. J. and Abolnik, I. Z. Pulmonary edema following a licorice binge. West J Med 1997;167(3):184-185.
  42. Barrella, M., Lauria, G., Quatrale, R., and Paolino, E. Hypokaliemic rhabdomyolysis associated with liquorice ingestion: report of an atypical case. Ital.J Neurol.Sci 1997;18(4):217-220. PubMed
  43. Fugh-Berman, A. Herb-drug interactions. Lancet 2000;355(9198):134-138. PubMed
  44. Hasegawa, J., Suyama, Y., Kinugawa, T., Morisawa, T., and Kishimoto, Y. Echocardiographic findings of the heart resembling dilated cardiomyopathy during hypokalemic myopathy due to licorice-induced pseudoaldosteronism. Cardiovasc.Drugs Ther 1998;12(6):59 PubMed
  45. van Rossum, T. G., Vulto, A. G., Hop, W. C., Brouwer, J. T., Niesters, H. G., and Schalm, S. W. Intravenous glycyrrhizin for the treatment of chronic hepatitis C: a double-blind, randomized, placebo-controlled phase I/II trial. J Gastroenterol Hepatol 199 PubMed
  46. Lozano, P., Flores, D., Martinez, S., Artigues, I., Rimbau, E. M., and Gomez, F. Upper limb ischemia induced by chronic licorice ingestion. J Cardiovasc.Surg (Torino) 2000;41(4):631-632.
  47. Brouwers, A. J. and van der, Meulen J. ['Licorice hypertension' also caused by licorice tea]. Ned.Tijdschr Geneeskd. 4-14-2001;145(15):744-747.
  48. van Rossum, T. G., Vulto, A. G., Hop, W. C., and Schalm, S. W. Glycyrrhizin-induced reduction of ALT in European patients with chronic hepatitis C. Am J Gastroenterol 2001;96(8):2432-2437. PubMed
  49. Sigurjonsdottir, H. A., Manhem, K., Axelson, M., and Wallerstedt, S. Subjects with essential hypertension are more sensitive to the inhibition of 11 beta-HSD by liquorice. J Hum Hypertens 2003;17(2):125-131.
  50. Shintani, S., Murase, H., Tsukagoshi, H., and Shiigai, T. Glycyrrhizin (licorice)-induced hypokalemic myopathy. Report of 2 cases and review of the literature. Eur Neurol 1992;32(1):44-51. PubMed
  51. Chen, M. F., Shimada, F., Kato, H., Yano, S., and Kanaoka, M. Effect of oral administration of glycyrrhizin on the pharmacokinetics of prednisolone. Endocrinol Jpn 1991;38(2):167-174. PubMed
  52. Lee, C. K., Park, K. K., Lim, S. S., Park, J. H., and Chung, W. Y. Effects of the licorice extract against tumor growth and cisplatin-induced toxicity in a mouse xenograft model of colon cancer. Biol Pharm Bull 2007;30(11):2191-2195. PubMed
  53. Isaia, G. C., Pellissetto, C., Ravazzoli, M., and Tamone, C. Acute adrenal crisis and hypercalcemia in a patient assuming high liquorice doses. Minerva Med 2008;99(1):91-94.
  54. Bocker, D. and Breithardt, G. [Induction of arrhythmia by licorice abuse]. Z Kardiol 1991;80(6):389-391.
  55. Tacconi, P., Paribello, A., Cannas, A., and Marrosu, M. G. Carpal tunnel syndrome triggered by excessive licorice consumption. J Peripher.Nerv.Syst. 2009;14(1):64-65. PubMed
  56. Tu, J. H., He, Y. J., Chen, Y., Fan, L., Zhang, W., Tan, Z. R., Huang, Y. F., Guo, D., Hu, D. L., Wang, D., and Hong-Hao Zhou. Effect of glycyrrhizin on the activity of CYP3A enzyme in humans. Eur J Clin Pharmacol 2010;66(8):805-810. PubMed
  57. Goultschin, J., Palmon, S., Shapira, L., Brayer, L., and Gedalia, I. Effect of glycyrrhizin-containing toothpaste on dental plaque reduction and gingival health in humans. A pilot study. J Clin Periodontol 1991;18(3):210-212. PubMed
  58. Scali, M., Pratesi, C., Zennaro, M. C., Zampollo, V., and Armanini, D. Pseudohyperaldosteronism from liquorice-containing laxatives. J Endocrinol Invest 1990;13(10):847-848. PubMed
  59. Chatterjee, N., Domoto-Reilly, K., Fecci, P. E., Schwamm, L. H., and Singhal, A. B. Licorice-associated reversible cerebral vasoconstriction with PRES. Neurology 2010;75(21):1939-1941. PubMed
  60. Imtiaz, K. E. Sweet root, bitter pill: liquorice-induced hyperaldosteronism. QJM 2011;104(12):1093-1095. PubMed
  61. van Beers, E. J., Stam, J., and van den Bergh, W. M. Licorice consumption as a cause of posterior reversible encephalopathy syndrome: a case report. Crit Care 2011;15(1):R64. PubMed
  62. MacKenzie, M. A., Hoefnagels, W. H., Jansen, R. W., Benraad, T. J., and Kloppenborg, P. W. The influence of glycyrrhetinic acid on plasma cortisol and cortisone in healthy young volunteers. J Clin Endocrinol Metab 1990;70(6):1637-1643. PubMed
  63. Bardhan, K. D., Cumberland, D. C., Dixon, R. A., and Holdsworth, C. D. Clinical trial of deglycyrrhizinised liquorice in gastric ulcer. Gut 1978;19(9):779-782. PubMed
  64. Koster, M. and David, G. K. Reversible severe hypertension due to licorice ingestion. N Engl J Med 1968;278(25):1381-1383. PubMed
  65. Corse, F. M., Galgani, S., Gasparini, C., Giacanelli, M., and Piazza, G. Acute hypokalemic myopathy due to chronic licorice ingestion: report of a case. Ital J Neurol Sci 1983;4(4):493-497. PubMed
  66. Berlango Jimenez A., Jimenez Murillo L., Montero Perez F. J., Munoz Avila J. A., Torres Murillo J., and Calderon de la Barca Gazquez J. M. [Acute rhabdomyolysis and tetraparesis secondary to hypokalemia due to ingested licorice]. An Med Interna 1995;12(1)
  67. Bernardi, M., D'Intino, P. E., Trevisani, F., Cantelli-Forti, G., Raggi, M. A., Turchetto, E., and Gasbarrini, G. Effects of prolonged ingestion of graded doses of licorice by healthy volunteers. Life Sci 1994;55(11):863-872. PubMed
  68. van der Zwan A. Hypertension encephalopathy after liquorice ingestion. Clin Neurol Neurosurg 1993;95(1):35-37. PubMed
  69. Werner, S., Brismar, K., and Olsson, S. Hyperprolactinaemia and liquorice. Lancet 2-10-1979;1(8111):319.
  70. Nishioka, K. and Seguchi, T. Contact allergy due to oil-soluble licorice extracts in cosmetic products. Contact Dermatitis 1999;40(1):56. PubMed
  71. Yoshino T, Yanagawa T, Watanabe K. Risk factors for pseudoaldosteronism with rhabdomyolysis caused by consumption of drugs containing licorice and differences between incidence of these conditions in Japan and other countries: case report and literature r
  72. Li G, Simmler C, Chen L, et al. Cytochrome P450 inhibition by three licorice species and fourteen licorice constituents. Eur J Pharm Sci. 2017;109:182-190. PubMed
  73. Li J, Fan X, Wang Q. Hypertensive crisis with 2 target organ impairment induced by glycyrrhizin: a case report. Medicine (Baltimore) 2018;97(11):e0073. PubMed
  74. Foster CA, Church KS, Poddar M, Van Uum SH, Spaic T. Licorice-induced hypertension: a case of pseudohyperaldosteronism due to jelly bean ingestion. Postgrad Med 2017;129(3):329-31. PubMed
  75. Gallacher SD, Tsokolas G, Dimitropoulos I. Liquorice-induced apparent mineralocorticoid excess presenting in the emergency department. Clin Med (Lond) 2017;17(1):43-5. PubMed
  76. Dai DW, Singh I, Hershman JM. Lozenge-induced hypermineralcorticoid state--a unique case of licorice lozenges resulting in hypertension and hypokalemia. J Clin Hypertens (Greenwich) 2016;18(2):159-60.
  77. O'Connell K, Kinsella J, McMahon C, Holian J, O'Riordan S. Posterior reversible encephalopathy syndrome (PRES) associated with liquorice consumption. Ir J Med Sci 2016;185(4):945-7. PubMed
  78. Hataya Y, Oba A, Yamashita T, Komatsu Y. Hyponatremia in an elderly patient due to isolated hypoaldosteronism occurring after licorice withdrawal. Intern Med 2017;56(2):175-9. PubMed
  79. Ha Y, Wang T, Li J, et al. Herb-Drug Interaction Potential of Licorice Extract and Paclitaxel: A Pharmacokinetic Study in Rats. Eur J Drug Metab Pharmacokinet. 2020;45(2):257-264. PubMed
  80. Edelman ER, Butala NM, Avery LL, Lundquist AL, Dighe AS. Case 30-2020: A 54-Year-Old Man with Sudden Cardiac Arrest. N Engl J Med. 2020;383(13):1263-1275. PubMed
  81. Wang H, Dong L, Qu F, et al. Effects of glycyrrhizin on the pharmacokinetics of nobiletin in rats and its potential mechanism. Pharm Biol. 2020 Dec;58(1):352-356. PubMed
  82. Attou R, Redant S, Honore PM, Preseau T, Hantson P, De Bels D. Liquorice intoxication can lead to cardiac arrest! Case Rep Emerg Med. 2020;2020:3727682. PubMed
  83. Benge E, Shah P, Yamaguchi L, Josef V. Trick or Treat? Licorice-Induced Hypokalemia: A Case Report. Cureus 2020;12(11):e11656. PubMed
  84. Abe K, Higurashi T, Takahashi M, et al. Concomitant Use of High-dose Methotrexate and Glycyrrhizin Affects Pharmacokinetics of Methotrexate, Resulting in Hepatic Toxicity. In Vivo 2021;35(4):2163-2169. PubMed
  85. Awad N, Makar G, Burroughs V, Ravi P, Burroughs SR. Licorice-induced apparent mineralocorticoid excess causing persistent hypertension and hypokalemia. Acta Endocrinol (Buchar) 2020;16(4):508-510. PubMed
  86. Patel P, Aknouk M, Dawson A, et al. How Much Is Too Much? Exploring Pseudohyperaldosteronism in Glycyrrhizic Acid Toxicity From Chronic Licorice Root Consumption. Cureus 2021;13(7):e16454. PubMed
  87. Fan ZJ, Liu JM, Li XX, et al. Glycyrrhizin-Induced Pseudohyperaldosteronism: A Case Report. Chin J Integr Med 2022. PubMed
  88. Gatica-Ortega ME, Pastor-Nieto MA. Allergic contact dermatitis to Glycyrrhiza inflata root extract in an anti-acne cosmetic product. Contact Dermatitis 2021;85(4):454-455.
  89. Wang JB, Huang A, Wang Y, et al. Corticosteroid plus glycyrrhizin therapy for chronic drug- or herb-induced liver injury achieves biochemical and histological improvements: a randomised open-label trial. Aliment Pharmacol Ther 2022;55(10):1297-1310. PubMed
  90. Puaratanaarunkon T, Washrawirul C, Chuenboonngarm N, Noppakun N, Asawanonda P, Kumtornrut C. Efficacy and safety of a facial serum containing snail secretion filtrate, Calendula officinalis, and Glycyrrhiza glaba root extract in the treatment of maskne: A
  91. Haron MH, Dale O, Martin K, et al. Evaluation of the Herb-Drug Interaction Potential of Commonly Used Botanicals on the US Market with Regard to PXR- and AhR-Mediated Influences on CYP3A4 and CYP1A2. J Diet Suppl 2022. PubMed
  92. Han EJ, Park JS. Lethal Arrhythmia Induced by Licorice. J Korean Med Sci 2023;38(12):e107. PubMed

See these in context on the Licorice monograph →

Celery 48 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  3. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  4. Heck AM, DeWitt BA, Lukes AL. Potential interactions between alternative therapies and warfarin. Am J Health Syst Pharm 2000;57:1221-7. DOI
  5. Gral N, Beani JC, Bonnot D, et al. [Plasma levels of psoralens after celery ingestion]. Ann Dermatol Venereol 1993;120:599-603.
  6. Moses, G. Thyroxine interacts with celery seed tablets? Australian Prescriber 2001;24:6-7. DOI
  7. Ciganda C, and Laborde A. Herbal infusions used for induced abortion. J Toxicol.Clin Toxicol. 2003;41:235-239. PubMed
  8. Jakovljevic, V., Raskovic, A., Popovic, M., and Sabo, J. The effect of celery and parsley juices on pharmacodynamic activity of drugs involving cytochrome P450 in their metabolism. Eur.J Drug Metab Pharmacokinet. 2002;27(3):153-156. PubMed
  9. Wang, L., Sterling, B., and Don, P. Berloque dermatitis induced by "Florida water". Cutis 2002;70(1):29-30.
  10. Weber, I. C., Davis, C. P., and Greeson, D. M. Phytophotodermatitis: the other "lime" disease. J Emerg.Med 1999;17(2):235-237. PubMed
  11. Rueff, F., Eberlein-Konig, B., and Przybilla, B. Oral hyposensitization with celery juice. Allergy 2001;56(1):82-83. PubMed
  12. Lombaert, G. A., Siemens, K. H., Pellaers, P., Mankotia, M., and Ng, W. Furanocoumarins in celery and parsnips: method and multiyear Canadian survey. J AOAC Int 2001;84(4):1135-1143. DOI
  13. Ballmer-Weber, B. K., Hoffmann, A., Wuthrich, B., Luttkopf, D., Pompei, C., Wangorsch, A., Kastner, M., and Vieths, S. Influence of food processing on the allergenicity of celery: DBPCFC with celery spice and cooked celery in patients with celery allergy PubMed
  14. Hoerler, S. and Ukiwe, J. Laryngeal edema from celery allergic reaction. Am.J.Emerg.Med. 1992;10(6):613. PubMed
  15. DeLeo, V. A. Photocontact dermatitis. Dermatol Ther 2004;17(4):279-288. PubMed
  16. Groot, B. J., Belinfante-van Gelder, M. E., and Jans, H. W. [An epidemic of dermatitis caused by blanched celery]. Ned.Tijdschr.Geneeskd. 6-20-1992;136(25):1210-1213.
  17. Erdmann, S. M., Sachs, B., Schmidt, A., Merk, H. F., Scheiner, O., Moll-Slodowy, S., Sauer, I., Kwiecien, R., Maderegger, B., and Hoffmann-Sommergruber, K. In vitro analysis of birch-pollen-associated food allergy by use of recombinant allergens in the b
  18. Jeanmougin, M., Varroud-Vial, C., and Dubertret, L. [Phototoxic side-effect following celery ingestion during puvatherapy]. Ann.Dermatol Venereol 2005;132(6-7 Pt 1):566-567.
  19. Christensen, L. P. and Brandt, K. Bioactive polyacetylenes in food plants of the Apiaceae family: occurrence, bioactivity and analysis. J Pharm.Biomed.Anal. 6-7-2006;41(3):683-693. PubMed
  20. Gorgus, E., Lohr, C., Raquet, N., Guth, S., and Schrenk, D. Limettin and furocoumarins in beverages containing citrus juices or extracts. Food Chem.Toxicol. 2010;48(1):93-98. PubMed
  21. Maso, M. J., Ruszkowski, A. M., Bauerle, J., DeLeo, V. A., and Gasparro, F. P. Celery phytophotodermatitis in a chef. Arch.Dermatol. 1991;127(6):912-913. DOI
  22. Ljunggren, B. Severe phototoxic burn following celery ingestion. Arch.Dermatol. 1990;126(10):1334-1336. DOI
  23. Held, J. L. Phytophotodermatitis. Am Fam.Physician 1989;39(4):143-146.
  24. Silverstein, S. R., Frommer, D. A., Dobozin, B., and Rosen, P. Celery-dependent exercise-induced anaphylaxis. J.Emerg.Med. 1986;4(3):195-199. PubMed
  25. Rose, M. H. and Altman, L. C. Anaphylaxis after ingestion of raw celery. Ann.Allergy 1985;54(2):166.
  26. Forsbeck, M. and Ros, A. M. Anaphylactoid reaction to celery. Contact Dermatitis 1979;5(3):191. PubMed
  27. DeChamp, C., Michel, J., Deviller, P., and Perrin, L. F. [Anaphylactic shock to celery and sensitization to ragweed and mugwort. Crossed or concomitant allergy?]. Presse Med. 3-31-1984;13(14):871-874.
  28. Johansson, S. G., Dannaeus, A., and Lilja, G. The relevance of anti-food antibodies for the diagnosis of food allergy. Ann.Allergy 1984;53(6 Pt 2):665-672.
  29. Beier, R. C., Ivie, G. W., Oertli, E. H., and Holt, D. L. HPLC analysis of linear furocoumarins (psoralens) in healthy celery (Apium graveolens). Food Chem.Toxicol. 1983;21(2):163-165. PubMed
  30. Kidd, J. M., III, Cohen, S. H., Sosman, A. J., and Fink, J. N. Food-dependent exercise-induced anaphylaxis. J Allergy Clin Immunol 1983;71(4):407-411. PubMed
  31. Moneret-Vautrin, D. A. and Kanny, G. [Food-induced anaphylaxis. A new French multicenter survey]. Ann.Gastroenterol Hepatol (Paris) 1995;31(4):256-263.
  32. Bonnin, J. P., Grezard, P., Colin, L., and Perrot, H. [A very significant case of allergy to celery]. Allerg.Immunol.(Paris) 1995;27(6):209.
  33. Bonnin, J. P., Grezard, P., Colin, L., and Perrot, H. [A very significant case of allergy to celery cross-reacting with ragweed]. Allerg.Immunol.(Paris) 1995;27(3):91-93.
  34. Moneret-Vautrin, D. A. and Kanny, G. [Food-induced anaphylaxis. A new French multicenter study]. Bull.Acad.Natl.Med 1995;179(1):161-184.
  35. Puig, L. and de Moragas, J. M. Enhancement of PUVA phototoxic effects following celery ingestion: cool broth also can burn. Arch.Dermatol. 1994;130(6):809-810. DOI
  36. Egan, C. L. and Sterling, G. Phytophotodermatitis: a visit to Margaritaville. Cutis 1993;51(1):41-42.
  37. Boffa, M. J., Gilmour, E., and Ead, R. D. Celery soup causing severe phototoxicity during PUVA therapy. Br.J.Dermatol. 1996;135(2):334.
  38. Wuthrich, B., Borga, A., and Yman, L. Oral allergy syndrome to a jackfruit (Artocarpus integrifolia). Allergy 1997;52(4):428-431.
  39. Peterson, S., Lampe, J. W., Bammler, T. K., Gross-Steinmeyer, K., and Eaton, D. L. Apiaceous vegetable constituents inhibit human cytochrome P-450 1A2 (hCYP1A2) activity and hCYP1A2-mediated mutagenicity of aflatoxin B1. Food Chem.Toxicol. 2006;44(9):147 PubMed
  40. Baek CH, Bae YJ, Cho YS, Moon HB, Kim TB. Food-dependent exercise-induced anaphylaxis in the celery-mugwort-birch-spice syndrome. Allergy. 2010;65(6):792-3. PubMed
  41. Khalid Z, Osuagwu FC, Shah B, Roy N, Dillon JE, Bradley R. Celery root extract as an inducer of mania induction in a patient on venlafaxine and St John's Wort. Postgrad Med. 2016;128(7):682-3. PubMed
  42. Palgan K, Götz-Zbikowska M, Tykwinska M, Napiórkowska K, Bartuzi Z. Celery-cause of severe anaphylactic shock. Postepy Hig Med Dosw (Online). 2012;66:132-4.
  43. Maljaei MB, Moosavian SP, Mirmosayyeb O, Rouhani MH, Namjoo I, Bahreini A. Effect of celery extract on thyroid function; is herbal therapy safe in obesity? Int J Prev Med 2019;10:55. doi: 10.4103/ijpvm.IJPVM_209_17. PubMed
  44. Rouhi-Boroujeni H, Hosseini M, Gharipour M, Rouhi-Boroujeni H. Is herbal therapy safe in obesity? A case of Apium graveolens (Celery) induced hyperthyroidism. ARYA Atheroscler 2016;12(5):248-9.
  45. Emad AM, Ali SF, Abdel-Rahman EA, et al. Anti-inflammatory and antioxidant effects of Apium graveolens L. extracts mitigate against fatal acetaminophen-induced acute liver toxicity. J Food Biochem 2020:e13399. Online ahead of print.
  46. Shayani Rad M, Moohebati M, Mohajeri SA. Effect of celery (Apium graveolens) seed extract on hypertension: A randomized, triple-blind, placebo-controlled, cross-over, clinical trial. Phytother Res 2022.
  47. Azimi M, Zahedi MJ, Raeiszadeh M, Iraji A, Cramer H, Pasalar M. Efficacy and Safety of a Persian Medicine Formula on Functional Dyspepsia Symptoms: A Randomized Double-Blind Active-Control Clinical Trial. Complement Med Res 2023;30(3):238-247. PubMed
  48. Ukleja-Sokolowska N, Lis K, Graczyk M, Bartuzi M, Bartuzi Z. The use of inhibition assay in Api g 7 suspected allergy in a female patient with anaphylaxis: A case report. Int J Immunopathol Pharmacol 2024;38:3946320231223004. PubMed

See these in context on the Celery monograph →

Capsicum 89 references
  1. Covington TR, et al. Handbook of Nonprescription Drugs. 11th ed. Washington, DC: American Pharmaceutical Association, 1996.
  2. Cooper RL, Cooper MM. Red pepper-induced dermatitis in breast-fed infants. Dermatol 1996;93:61-2. PubMed
  3. Millqvist E. Cough provocation with capsaicin is an objective way to test sensory hyperreactivity in patients with asthma-like symptoms. Allergy 2000;55:546-50. DOI
  4. Locock RA. Capsicum. Can Pharm J 1985;118:517-9.
  5. Mason L, Moore RA, Derry S, et al. Systematic review of topical capsaicin for the treatment of chronic pain. BMJ 2004;328:991. PubMed
  6. Schmulson MJ, Valdovinos MA, Milke P. Chili pepper and rectal hyperalgesia in irritable bowel syndrome. Am J Gastroenterol 2003;98:1214-5. PubMed
  7. Surh YJ, Lee SS. Capsaicin in hot chili pepper: carcinogen, co-carcinogen or anticarcinogen? Food Chem Toxicol 1996;34:313-6. PubMed
  8. Bouraoui A, Brazier JL, Zouaghi H, Rousseau M. Theophylline pharmacokinetics and metabolism in rabbits following single and repeated administration of Capsicum fruit. Eur J Drug Metab Pharmacokinet 1995;20:173-8.
  9. Hogaboam CM, Wallace JL. Inhibition of platelet aggregation by capsaicin. An effect unrelated to actions on sensory afferent neurons. Eur J Pharmacol 1991;202:129-31. PubMed
  10. Wang JP, Hsu MF, Teng CM. Antiplatelet effect of capsaicin. Thromb Res 1984;36:497-507. PubMed
  11. Williams SR, Clark RF, Dunford JV. Contact dermatitis associated with capsaicin: Hunan hand syndrome. Ann Emerg Med 1995;25:713-5. PubMed
  12. Zollman TM, Bragg RM, Harrison DA. Clinical effects of oleoresin capsicum (pepper spray) on the human cornea and conjunctiva. Ophthalmology 2000;107:2186-9. PubMed
  13. Bortolotti M, Coccia G, Grossi G, Miglioli M. The treatment of functional dyspepsia with red pepper. Aliment Pharmacol Ther 2002;16:1075-82. PubMed
  14. Hakas JF Jr. Topical capsaicin induces cough in patient receiving ACE inhibitor. Ann Allergy 1990;65:322-3.
  15. Rapoport AM, Bigal ME, Tepper SJ, Sheftell FD. Intranasal medications for the treatment of migraine and cluster headache. CNS Drugs 2004;18:671-85. PubMed
  16. Stjarne P, Rinder J, Heden-Blomquist E, et al. Capsaicin desensitization of the nasal mucosa reduces symptoms upon allergen challenge in patients with allergic rhinitis. Acta Otolaryngol 1998;118:235-9. PubMed
  17. Levy RL. Intranasal capsaicin for acute abortive treatment of migraine without aura. Headache 1995;35:277.
  18. Fusco BM, Marabini S, Maggi CA, et al. Preventative effect of repeated nasal applications of capsaicin in cluster headache. Pain 1994;59:321-5. PubMed
  19. Sicuteri F, Fusco BM, Marabini S, et al. Beneficial effect of capsaicin application to the nasal mucosa in cluster headache. Clin J Pain 1989;5:49-53. PubMed
  20. Marabini S, Ciabatti PG, Polli G, et al. Beneficial effects of intranasal applications of capsaicin in patients with vasomotor rhinitis. Eur Arch Otorhinolaryngol 1991;248:191-4. PubMed
  21. Frerick H, Keitel W, Kuhn U, et al. Topical treatment of chronic low back pain with a capsicum plaster. Pain 2003;106:59-64. PubMed
  22. Keitel W, Frerick H, Kuhn U, et al. Capsicum pain plaster in chronic non-specific low back pain. Arzneimittelforschung 2001;51:896-903. PubMed
  23. Shalansky S, Lynd L, Richardson K, et al. Risk of warfarin-related bleeding events and supratherapeutic international normalized ratios associated with complementary and alternative medicine: a longitudinal analysis. Pharmacotherapy. 2007;27:1237-47. PubMed
  24. Sumano-López H, Gutiérrez-Olvera L, Aguilera-Jiménez R, et al. Administration of ciprofloxacin and capsaicin in rats to achieve higher maximal serum concentrations. Arzneimittelforschung. 2007;57(5):286-90. PubMed
  25. Wanwimolruk S, Nyika S, Kepple M, et al. Effects of capsaicin on the pharmacokinetics of antipyrine, theophylline and quinine in rats. J Pharm Pharmacol. 1993;45(7):618-21. PubMed
  26. Cruz L, Castañeda-Hernández G, Navarrete A. Ingestion of chilli pepper (Capsicum annuum) reduces salicylate bioavailability after oral asprin administration in the rat. Can J Physiol Pharmacol.
  27. Rodriguez-Stanley, S., Collings, K. L., Robinson, M., Owen, W., and Miner, P. B., Jr. The effects of capsaicin on reflux, gastric emptying and dyspepsia. Aliment.Pharmacol.Ther. 2000;14(1):129-134. PubMed
  28. Brown, L., Takeuchi, D., and Challoner, K. Corneal abrasions associated with pepper spray exposure. Am.J.Emerg.Med. 2000;18(3):271-272. PubMed
  29. Vesaluoma, M., Muller, L., Gallar, J., Lambiase, A., Moilanen, J., Hack, T., Belmonte, C., and Tervo, T. Effects of oleoresin capsicum pepper spray on human corneal morphology and sensitivity. Invest Ophthalmol.Vis.Sci. 2000;41(8):2138-2147.
  30. Stam, C., Bonnet, M. S., and van Haselen, R. A. The efficacy and safety of a homeopathic gel in the treatment of acute low back pain: a multi-centre, randomised, double-blind comparative clinical trial. Br Homeopath J 2001;90(1):21-28. PubMed
  31. Olajos, E. J. and Salem, H. Riot control agents: pharmacology, toxicology, biochemistry and chemistry. J.Appl.Toxicol. 2001;21(5):355-391. PubMed
  32. Fett, D. D. Botanical briefs: Capsicum peppers. Cutis 2003;72(1):21-23.
  33. McCarthy, G. M. and McCarty, D. J. Effect of topical capsaicin in the therapy of painful osteoarthritis of the hands. J.Rheumatol. 1992;19(4):604-607.
  34. Chaiyata, P., Puttadechakum, S., and Komindr, S. Effect of chili pepper (Capsicum frutescens) ingestion on plasma glucose response and metabolic rate in Thai women. J.Med.Assoc.Thai. 2003;86(9):854-860.
  35. Petruzzi, M., Lauritano, D., De Benedittis, M., Baldoni, M., and Serpico, R. Systemic capsaicin for burning mouth syndrome: short-term results of a pilot study. J.Oral Pathol.Med. 2004;33(2):111-114. PubMed
  36. Misra, M. N., Pullani, A. J., and Mohamed, Z. U. Prevention of PONV by acustimulation with capsicum plaster is comparable to ondansetron after middle ear surgery: [La prevention des NVPO par acustimulation avec un emplatre de Capsicum est comparable a ce PubMed
  37. Milke, P., Diaz, A., Valdovinos, M. A., and Moran, S. Gastroesophageal reflux in healthy subjects induced by two different species of chilli (Capsicum annum). Dig.Dis. 2006;24(1-2):184-188.
  38. de Jong, N. W., van der Steen, J. J., Smeekens, C. C., Blacquiere, T., Mulder, P. G., van Wijk, R. G., and de Groot, H. Honeybee interference as a novel aid to reduce pollen exposure and nasal symptoms among greenhouse workers allergic to sweet bell pepp
  39. Final report on the safety assessment of capsicum annuum extract, capsicum annuum fruit extract, capsicum annuum resin, capsicum annuum fruit powder, capsicum frutescens fruit, capsicum frutescens fruit extract, capsicum frutescens resin, and capsaicin.
  40. Tandan, R., Lewis, G. A., Krusinski, P. B., Badger, G. B., and Fries, T. J. Topical capsaicin in painful diabetic neuropathy. Controlled study with long-term follow-up. Diabetes Care 1992;15(1):8-14. PubMed
  41. Gupta, P. J. Red hot chilli consumption is harmful in patients operated for anal fissure - a randomized, double-blind, controlled study. Dig.Surg. 2007;24(5):354-357. PubMed
  42. Patane, S., Marte, F., Di Bella, G., Cerrito, M., and Coglitore, S. Capsaicin, arterial hypertensive crisis and acute myocardial infarction associated with high levels of thyroid stimulating hormone. Int.J Cardiol. 5-1-2009;134(1):130-132. PubMed
  43. Gupta, P. J. Consumption of red-hot chili pepper increases symptoms in patients with acute anal fissures. A prospective, randomized, placebo-controlled, double blind, crossover trial. Arq Gastroenterol. 2008;45(2):124-127. PubMed
  44. Gupta, P. J. Consumption of red-hot chili pepper increases symptoms in patients with acute anal fissures. Ann.Ital.Chir 2008;79(5):347-351.
  45. Patane, S., Marte, F., La Rosa, F. C., and La, Rocca R. Capsaicin and arterial hypertensive crisis. Int J Cardiol. 10-8-2010;144(2):e26-e27. PubMed
  46. Chaiyasit, K., Khovidhunkit, W., and Wittayalertpanya, S. Pharmacokinetic and the effect of capsaicin in Capsicum frutescens on decreasing plasma glucose level. J Med.Assoc.Thai. 2009;92(1):108-113.
  47. Blanc, P., Liu, D., Juarez, C., and Boushey, H. A. Cough in hot pepper workers. Chest 1991;99(1):27-32. PubMed
  48. Akcay, A. B., Ozcan, T., Seyis, S., and Acele, A. Coronary vasospasm and acute myocardial infarction induced by a topical capsaicin patch. Turk.Kardiyol.Dern.Ars 2009;37(7):497-500.
  49. van Boxel, O. S., ter Linde, J. J., Siersema, P. D., and Smout, A. J. Role of chemical stimulation of the duodenum in dyspeptic symptom generation. Am J Gastroenterol. 2010;105(4):803-811. PubMed
  50. Niemcunowicz-Janica, A., Ptaszynska-Sarosiek, I., and Wardaszka, Z. [Sudden death caused by an oleoresin capsicum spray]. Arch.Med.Sadowej.Kryminol. 2009;59(3):252-254.
  51. Reuter, J., Merfort, I., and Schempp, C. M. Botanicals in dermatology: an evidence-based review. Am J Clin Dermatol 2010;11(4):247-267. PubMed
  52. McCormack, P. L. Capsaicin dermal patch: in non-diabetic peripheral neuropathic pain. Drugs 10-1-2010;70(14):1831-1842. PubMed
  53. Bortolotti, M. and Porta, S. Effect of red pepper on symptoms of irritable bowel syndrome: preliminary study. Dig.Dis.Sci 2011;56(11):3288-3295. PubMed
  54. Webster, L. R., Peppin, J. F., Murphy, F. T., Lu, B., Tobias, J. K., and Vanhove, G. F. Efficacy, safety, and tolerability of NGX-4010, capsaicin 8% patch, in an open-label study of patients with peripheral neuropathic pain. Diabetes Res Clin Pract. 2011 PubMed
  55. Gerber, S., Frueh, B. E., and Tappeiner, C. Conjunctival proliferation after a mild pepper spray injury in a young child. Cornea 2011;30(9):1042-1044. PubMed
  56. Lim, L. G., Tay, H., and Ho, K. Y. Curry induces acid reflux and symptoms in gastroesophageal reflux disease. Dig.Dis.Sci 2011;56(12):3546-3550. PubMed
  57. Ludy, M. J., Moore, G. E., and Mattes, R. D. The effects of capsaicin and capsiate on energy balance: critical review and meta-analyses of studies in humans. Chem Senses 2012;37(2):103-121. PubMed
  58. Sayin, M. R., Karabag, T., Dogan, S. M., Akpinar, I., and Aydin, M. A case of acute myocardial infarction due to the use of cayenne pepper pills. Wien.Klin.Wochenschr. 2012;124(7-8):285-287. PubMed
  59. Bley, K., Boorman, G., Mohammad, B., McKenzie, D., and Babbar, S. A comprehensive review of the carcinogenic and anticarcinogenic potential of capsaicin. Toxicol.Pathol. 2012;40(6):847-873. PubMed
  60. Derry, S. and Moore, R. A. Topical capsaicin (low concentration) for chronic neuropathic pain in adults. Cochrane.Database.Syst.Rev. 2012;9:CD010111. PubMed
  61. Tominack, R. L. and Spyker, D. A. Capsicum and capsaicin--a review: case report of the use of hot peppers in child abuse. J.Toxicol.Clin.Toxicol. 1987;25(7):591-601. PubMed
  62. Schuurs, A. H., Abraham-Inpijn, L., van Straalen, J. P., and Sastrowijoto, S. H. An unusual case of black teeth. Oral Surg.Oral Med.Oral Pathol. 1987;64(4):427-431. PubMed
  63. Kumar, N., Vij, J. C., Sarin, S. K., and Anand, B. S. Do chillies influence healing of duodenal ulcer? Br.Med.J.(Clin.Res.Ed) 6-16-1984;288(6433):1803-1804. PubMed
  64. Steffee, C. H., Lantz, P. E., Flannagan, L. M., Thompson, R. L., and Jason, D. R. Oleoresin capsicum (pepper) spray and "in-custody deaths". Am.J.Forensic Med.Pathol. 1995;16(3):185-192. PubMed
  65. Knight, T. E. and Hayashi, T. Solar (brachioradial) pruritus--response to capsaicin cream. Int.J.Dermatol. 1994;33(3):206-209. DOI
  66. Watson, W. A., Stremel, K. R., and Westdorp, E. J. Oleoresin capsicum (Cap-Stun) toxicity from aerosol exposure. Ann.Pharmacother. 1996;30(7-8):733-735. PubMed
  67. Busker, R. W. and van Helden, H. P. Toxicologic evaluation of pepper spray as a possible weapon for the Dutch police force: risk assessment and efficacy. Am.J.Forensic Med.Pathol. 1998;19(4):309-316. PubMed
  68. Sausenthaler, S., Koletzko, S., Schaaf, B., Lehmann, I., Borte, M., Herbarth, O., von Berg, A., Wichmann, H. E., and Heinrich, J. Maternal diet during pregnancy in relation to eczema and allergic sensitization in the offspring at 2 y of age. Am J Clin Nu PubMed
  69. Bleuel I, Zinkernagel M, Tschopp M, Tappeiner C. Association of bilateral acute anterior uveitis with a capsaicin patch. Ocul Immunol Inflamm 2013;21(5):394-5. PubMed
  70. Casanueva B, Rodero B, Quintial C, Llorca J, González-Gay MA. Short-term efficacy of topical capsaicin therapy in severely affected fibromyalgia patients. Rheumatol Int 2013;33(10):2665-70. PubMed
  71. Copeland S, Nugent K. Persistent respiratory symptoms following prolonged capsaicin exposure. Int J Occup Environ Med. 2013;4(4):211-5.
  72. García-Menaya JM, Cordobés -Durán C, Bobadilla-González P, et al. Anaphylactic reaction to bell pepper (Capsicum annuum) in a patient with a latex-fruit syndrome. Allergol Immunopathol (Madr). 2014;42(3):263-5. PubMed
  73. Kim DH, Yoon KB, Park S, et al. Comparison of NSAID patch given as monotherapy and NSAID patch in combination with transcutaneous electric nerve stimulation, a heating pad, or topical capsaicin in the treatment of patients with myofascial pain syndrome o
  74. Kulkantrakorn K, Lorsuwansiri C, Meesawatsom P. 0.025% capsaicin gel for the treatment of painful diabetic neuropathy: a randomized, double-blind, crossover, placebo-controlled trial. Pain Pract. 2013;13(6):497-503. PubMed
  75. Pabalan N, Jarjanazi H, Ozcelik H. The impact of capsaicin intake on risk of developing gastric cancers: a meta-analysis. J Gastrointest Cancer. 2014;45(3):334-41. PubMed
  76. Sandor B, Papp J, Mozsik G, et al. Orally given gastroprotective capsaicin does not modify aspirin-induced platelet aggregation in healthy male volunteers (human phase I examination). Acta Physiol Hung. 2014 Dec;101(4):429-37. PubMed
  77. Van Nooten F, Treur M, Pantiri K, Stoker M, Charokopou M. Capsaicin 8% patch versus oral neuropathic pain medications for the treatment of painful diabetic peripheral neuropathy: a systematic literature review and network meta-analysis. Clin Ther. 2017 Ap PubMed
  78. Simpson DM, Robinson-Papp J, Van J, et al. Capsaicin 8% patch in painful diabetic peripheral neuropathy: a randomized, double-blind, placebo-controlled study. J Pain. 2017 Jan;18(1):42-53. PubMed
  79. Campbell CM, Diamond E, Schmidt WK, et al. A randomized, double-blind, placebo-controlled trial of injected capsaicin for pain in Morton's neuroma. Pain. 2016 Jun;157(6):1297-304. PubMed
  80. Jorgensen MR, Pedersen AM. Analgesic effect of topical oral capsaicin gel in burning mouth syndrome. Acta Odontol Scand. 2017 Mar;75(2):130-6.
  81. Yuan LJ, Qin Y, Wang L, et al. Capsaicin-containing chili improved postprandial hyperglycemia, hyperinsulinemia, and fasting lipid disorders in women with gestational diabetes mellitus and lowered the incidence of large-for-gestational-age newborns. Clin PubMed
  82. Dean DJ, Sabagha N, Rose K, et al. A pilot trial of topical capsaicin cream for treatment of cannabinoid hyperemesis syndrome. Acad Emerg Med. 2020;27(11):1166-1172. PubMed
  83. Jang HH, Lee J, Lee SH, Lee YM. Effects of Capsicum annuum supplementation on the components of metabolic syndrome: a systematic review and meta-analysis. Sci Rep. 2020;10(1):20912. PubMed
  84. Joseph MSc A, John PhD F, Thomas MSc JV, Sivadasan SDP, Maliakel PhD B, Mohan PhD R, I M K. Influence of a novel food-grade formulation of red chili extract (Capsicum annum) on overweight subjects: Randomized, double-blinded, placebo-controlled study. J D
  85. Kocak AO, Dogruyol S, Akbas I, et al. Comparison of topical capsaicin and topical piroxicam in the treatment of acute trauma-induced pain: A randomized double-blind trial. Am J Emerg Med. 2020;38(9):1767-1771. PubMed
  86. Lassen CL, Meyer K, Bredthauer A, Klier TW. Facial and oral cross-contamination of a 3-year-old child with high concentration capsaicin: A case report. A A Pract. 2020;14(9):e01258. PubMed
  87. Predel HG, Ebel-Bitoun C, Peil B, Weiser TW, Lange R. Efficacy and safety of diclofenac?+?capsaicin gel in patients with acute back/neck pain: A multicenter randomized controlled study. Pain Ther. 2020;9(1):279-296. PubMed
  88. Umigai N, Kozai Y, Saito T, Takara T. Effects of paprika carotenoid supplementation on bone turnover in postmenopausal women: a randomized, double-blind, placebo-controlled, parallel-group comparison study. Food Nutr Res. 2020;64. PubMed
  89. Trin K, Perino J, Allouchery M, Géniaux H, Miremont G, Salvo F. Second-degree burn induced by high-concentration topical capsaicin with mobility sequelae: A case report. Pain Pract 2023;23(2):216-219. PubMed

See these in context on the Capsicum monograph →

Cascara Sagrada 9 references
  1. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
  2. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  3. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  4. Covington TR, et al. Handbook of Nonprescription Drugs. 11th ed. Washington, DC: American Pharmaceutical Association, 1996.
  5. Nusko G, Schneider B, Schneider I, et al. Anthranoid laxative use is not a risk factor for colorectal neoplasia: results of a prospective case control study. Gut 2000;46:651-5. PubMed
  6. Nadir A, Reddy D, Van Thiel DH. Cascara-sagrada induced intrahepatic cholestasis causing portal hypertension: case report and review of herbal hepatotoxicity. Am J Gastroenterol 2000;95:3634-7. PubMed
  7. Nakasone ES, Tokeshi J. A serendipitous find: a case of cholangiocarcinoma identified incidentally after acute liver injury due to cascara sagrada ingestion. Hawaii J Med Public Health 2015;74(6):200-2.
  8. Cirillo C, Capasso R. Constipation and botanical medicines: an overview. Phytother Res 2015;29(10):1488-93. PubMed
  9. Mazzari ALDA, Lacerda MG, Milton FA, et al. In vitro effects of European and Latin-American medicinal plants in CYP3A4 gene expression, glutathione levels, and P-glycoprotein activity. Front Pharmacol 2022;13:826395. PubMed

See these in context on the Cascara Sagrada monograph →

Wild Yam 7 references
  1. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Eagon PK, Elm MS, Hunter DS, et al. Medicinal herbs: modulation of estrogen action. Era of Hope Mtg, Dept Defense; Breast Cancer Res Prog, Atlanta, GA 2000;Jun 8-11.
  3. Cheong JL, Bucknall R. Retinal vein thrombosis associated with a herbal phytoestrogen preparation in a susceptible patient. Postgrad Med J 2005;81:266-7.. PubMed
  4. Rosenberg Zand, R. S., Jenkins, D. J., and Diamandis, E. P. Effects of natural products and nutraceuticals on steroid hormone-regulated gene expression. Clin Chim.Acta 2001;312(1-2):213-219. PubMed
  5. Araghiniknam M, Chung S, Nelson-White T, and et al. Antioxidant activity of Dioscorea and dehydroepiandrosterone (DHEA) in older humans. Life Sciences 1996;59:L147-L157.
  6. Zeng M, Zhang L, Li M, et al. Estrogenic effects of the extracts from the Chinese Yam (Dioscorea opposite Thunb.) and its effective compounds in vitro and in vivo. Molecules. 2018 Jan 23;23(2). Pii: E11. PubMed
  7. Lu J, Wong RN, Zhang L, et al. Comparative analysis of proteins with stimulating activity on ovarian estradiol biosynthesis from four different Dioscorea species in vitro using both phenotypic and target-based approaches: implication for treating menopaus

See these in context on the Wild Yam monograph →

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DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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