Interactions on record — worth a quick check against your medications. Based on 5 of 8 ingredients. Check your meds →
Dietary supplement

Herbal Biotic Ingredients & Drug Interactions

by Return Healthy

Herbal Biotic label
See full label image
Capsule Category: Other Combinations
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 Herbal Biotic 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

Herbal Biotic is a dietary supplement by Return Healthy with 8 active ingredients. Its ingredients are commonly taken for immune support, viral infections (such as herpes or colds), antibacterial support.Based on those ingredients, 1,183 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Clove bud essential oil, Uncaria tomentosa extract, Oregano Essential Oil. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Herbal Biotic by Return Healthy

Ask about any prescription or over-the-counter medication and we check it for interactions with Herbal Biotic by Return Healthy — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Herbal Biotic by Return Healthy

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

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 8 active ingredients.
  • “Proprietary Blend” is a proprietary blend — the label gives one combined amount (1,810 mg) without saying how much of each component you get.

Herbal Biotic contains 8 ingredients, most in a proprietary blend formula. The labeled active ingredients are monolaurin (a fatty acid); two uncaria species extracts — cat's claw (Uncaria tomentosa) and another uncaria species; Isatis tinctoria extract; Houttuynia cordata extract; Scuttellaria baicalensis extract; oregano essential oil; and clove bud essential oil.

The product also contains inactive ingredients: cellulose, L-leucine, and silicon dioxide (used as fillers and flow agents in the capsule).

Does it work?

Not established
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
Not established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use.

Why this rating?
  • The label markets this product for: Build immune function, supports normal microbial levels.
  • We looked for evidence on: Bronchitis, Cough, Respiratory tract infections, Upper respiratory tract infection (URTI), Intestinal parasite infection, Urinary tract infections (UTIs) — and 4 related terms.
  • The closest evidence on file: Clove is rated "Insufficient Reliable Evidence To Rate" for Cough (Natural Medicines).
  • Also on file: Oregano is rated "Insufficient Reliable Evidence To Rate" for Bronchitis, Upper respiratory tract infection (URTI), Cough, Intestinal parasite infection, and more.
  • Also on file: Isatis is rated "Insufficient Reliable Evidence To Rate" for Respiratory tract infections.

The evidence we hold on these ingredients is limited. Isatis tinctoria is rated possibly effective for psoriasis; the other conditions listed for these ingredients — including allergic rhinitis, asthma, Alzheimer disease, cancer, and chronic fatigue syndrome — lack sufficient reliable evidence to rate.

Clove bud is rated possibly effective for ventilator-associated pneumonia, though that's a clinical setting not typical of home use. For monolaurin and bacterial vaginosis, the evidence is insufficient to rate.

We don't hold effectiveness data for the proprietary blend as a combined formula, nor for Houttuynia cordata or Scuttellaria baicalensis.

The evidence, ingredient by ingredient Monolaurin Cat's Claw Isatis Oregano Clove

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 3 of the 5 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 5 of 5.
  • General safety write-ups exist for 5 of 5.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Monolaurin is often well tolerated in food-related amounts, but its safety as a supplement in humans hasn't been well studied. Avoid it during pregnancy; breastfeeding safety is unknown, so ask your doctor before use.

Cat's claw is generally well tolerated short-term in healthy adults, but long-term safety isn't established. Avoid it during pregnancy (it was traditionally used as an abortifacient) and while breastfeeding.

In a clinical trial of cat's claw patients with advanced tumors, a small number experienced anemia, lowered white blood cell counts (leukopenia), and lowered platelet counts (thrombocytopenia); case reports also link it to kidney injury. Cat's claw users reported headache, fatigue, insomnia, and nerve pain (neuropathy) in clinical trials.

Isatis is used short-term in traditional medicine but has limited safety data in humans; avoid during pregnancy and breastfeeding. Oregano is safe as a food but concentrated oil supplements are stronger and less studied; avoid medicinal amounts during pregnancy and stick to food amounts while breastfeeding.

Orally, oregano is well tolerated in food amounts, but large medicinal doses have limited safety data. Rare systemic allergic reactions including anaphylaxis have been reported.

Clove is safe as a spice but clove oil in small amounts (5–10 mL) can be toxic in children. Avoid medicinal or essential-oil doses during pregnancy unless cleared by your provider; food amounts are likely fine.

The most common topical effects are burning, contact dermatitis, and mucous membrane irritation. Rare serious effects include liver failure from oral use, and CNS depression, confusion, and seizures have been reported in overdose cases.

Side effects, ingredient by ingredient Monolaurin Cat's Claw Isatis Oregano Clove

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?
  • 3 of the 5 matched ingredients can interact with medications — Clove, Cat's Claw, Oregano.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications.
  • For scale: 1,184 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 Herbal Biotic, check with your pharmacist or doctor if you take any of these: blood pressure-lowering drugs or calcium channel blockers (cat's claw may lower pressure further); blood thinners or antiplatelet drugs like warfarin or aspirin (cat's claw and clove oil may increase bleeding risk); diabetes medications including insulin (oregano and clove oil may increase low-blood-sugar risk); Paxlovid (nirmatrelvir/ritonavir) — cat's claw may reduce its effectiveness; immune-suppressing drugs (cat's claw may interfere with them); or any medication metabolized by CYP2D6, CYP1A2, CYP3A4, or CYP2C9 enzymes — clove oil may increase drug levels, and cat's claw may affect CYP3A4 metabolism. Use the medication checker below with your exact drugs.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

If you take blood pressure medications, blood thinners, diabetes drugs, or any drug metabolized by your liver's CYP enzymes, talk to your pharmacist or doctor before starting this product — cat's claw and clove oil in particular need checking against your prescriptions. This formula is not established as effective for most of the conditions it may be marketed for.

The short-term tolerability is reasonable for most people, but cat's claw's long-term safety and rare kidney injury reports warrant caution.

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

Assessment coverage: 5 of 8 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 Herbal Biotic, straight from the product label.

Brand Return Healthy
Barcode (UPC) 019962468605
Net contents 120 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD Sep 25, 2024
DSLD ID 313314
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy 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 Herbal Biotic by Return Healthy, 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 Vegetarian Capsule(s)
Maximum serving Sizes:
3 Vegetarian Capsule(s)
Servings per container
40
UPC/BARCODE
019962468605
IngredientAmount% DV
Proprietary Blend1810 mg--
Monolaurin0 NP--
Uncaria rhynchophylla Extract0 NP--
Uncaria tomentosa extract0 NP--
Isatis tinctoria Extract0 NP--
Houttuynia cordata Extract0 NP--
Scuttellaria baicalensis Extract0 NP--
Oregano Essential Oil0 NP--
Clove bud essential oil0 NP--

Other ingredients: Cellulose, L-Leucine, Silicon Dioxide

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.
Suggested/Recommended/Usage/Directions

Directions: Take 1-3 capsules 2-3 times per day, with or without meals, or as directed by your health care practitioner, as a dietary supplement.

FDA Disclaimer Statement

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

Precautions

Caution: Individuals who are pregnant or lactating should consult with their health care practitioner before using this product.

Do not use if security seal is broken or missing.

Keep out of reach of children.

Storage

Store in cool dry place away from direct light.

Formulation

Build immune function, supports normal microbial levels.

This product contains no hidden, excipients, binders, fillers, artificial colors, fragrance, wheat, gluten, dairy, corn, fish, egg, shellfish, animal derivatives, tree nuts or peanuts.

FDA Statement of Identity

Dietary Supplement

General Statements

Return Healthy Empowered Wellness

For more information, visit ReturnHealthy.com

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

See for yourself

Herbal Biotic by Return Healthy label

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

Herbal Biotic 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 Herbal Biotic by Return Healthy

These are the 8 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Vegetarian Capsule(s) Dosage formCapsule Servings per container40 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.

Proprietary Blend

1810 mg per serving

Other (inactive) ingredients: Cellulose, L-Leucine, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.

Interaction report

Herbal Biotic by Return Healthy Drug Interactions

Want to check YOUR meds against Herbal Biotic?

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
1,183Drugs
1,183 Moderate

Ingredients driving the most interactions

Clove bud essential oil 977
Uncaria tomentosa extract 962
Oregano Essential Oil 208

Individual Drug Interactions

The ingredients in Herbal Biotic interact with 1,183 drugs. Click any drug to see the details.

3 of the 8 ingredients in Herbal Biotic interact with drugs. Each result below shows which ingredient is responsible. Clove bud essential oil Uncaria tomentosa extract Oregano Essential Oil

Each ingredient & the kinds of drugs it affects

For each ingredient in Herbal Biotic 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.

Clove bud essential oil7 drug types · 977 drugs

Antidiabetes Drugs

Theoretically, concomitant use of clove extracts with antidiabetes drugs might increase the risk of hypoglycemia.
Clinical and laboratory research suggest that polyphenol extracts from clove flower buds might lower blood glucose levels. Dosing adjustments for insulin or oral hypoglycemic agents may be necessary when taken with clove. Monitor blood glucose levels closely.

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

Theoretically, concomitant use of clove may increase levels of drugs metabolized by CYP1A2.
In vitro research shows that eugenol, the principal constituent of clove, can inhibit CYP1A2 in a dose-dependent manner,. This effect has not been reported in humans.

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

Theoretically, concomitant use of clove may increase levels of drugs metabolized by CYP2C9.
In vitro research shows that eugenol, the principal constituent of clove, inhibits CYP2C9 in a dose-dependent manner. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, concomitant use of clove may increase levels of drugs metabolized by CYP2D6.
In vitro research shows that eugenol, the principal constituent of clove, can inhibit CYP2D6 in a dose-dependent manner. This effect has not been reported in humans.

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

Theoretically, concomitant use of clove may increase levels of drugs metabolized by CYP3A4.
In vitro research shows that eugenol, the principal constituent of clove, can inhibit CYP3A4 in a dose-dependent manner. This effect has not been reported in humans.

Likelihood Possible Evidence D
Anticoagulant/Antiplatelet Drugs

Theoretically, clove oil may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Laboratory research suggests that eugenol, a constituent of clove, has antiplatelet activity. This interaction has not been reported in humans.

Likelihood Unlikely Evidence D
Ibuprofen (Advil, Others)

Theoretically, topical application of clove oil with ibuprofen might increase the absorption and side effects of topical ibuprofen.
Laboratory research shows that topical application of clove oil increases the absorption of topical ibuprofen. This interaction has not been reported in humans.

Likelihood Possible Evidence D
Clove bud essential oil full monograph & interactions

Uncaria tomentosa extract6 drug types · 962 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, cat's claw may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Cat's claw contains rhynchophylline and isorhynchophylline. Animal research suggests that these alkaloids can inhibit platelet aggregation. This interaction has not been reported in humans.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, taking cat's claw with antihypertensive drugs might increase the risk of hypotension.
Cat's claw contains rhynchophylline. In vitro and animal research suggests that rhynchophylline can lower blood pressure. This interaction has not been reported in humans.

Likelihood Probable Evidence D
Calcium Channel Blockers

Theoretically, taking cat's claw with calcium channel blockers might increase the risk of hypotension.
Cat's claw contains various alkaloids, including rhynchophylline, isorhynchophylline, corynoxeine, and isocorynoxiene. Animal research suggests that these alkaloids can lower blood pressure by acting as calcium channel blockers. This interaction has not been reported in humans.

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

Theoretically, cat's claw might increase or decrease the levels and effects of drugs metabolized by CYP3A4.
Cat's claw may affect the clearance of drugs metabolized by CYP3A4. In vitro research shows that cat's claw can inhibit CYP3A4 enzymes. In one case report, a patient taking cat's claw (at an unspecified dose) experienced increased serum levels of atazanavir, ritonavir, and saquinavir, all of which are CYP3A4 substrates. Levels returned to normal 15 days after discontinuation of the cat's claw supplement, suggesting inhibition of CYP3A4 by cat's claw. In contrast, animal research suggests that rhynchophylline, an alkaloid contained in cat's claw, induces CYP3A expression and accelerates the metabolism of nirmatrelvir, the active component in the nirmatrelvir/ritonavir combination product.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, cat's claw might interfere with immunosuppressive therapy.
In human and laboratory research, cat's claw has been shown to have immunostimulating activity. It stimulates phagocytosis and increases respiratory cellular activity and the mobility of leukocytes. Theoretically, this could interfere with the activity of immunosuppressant medications.

Likelihood Possible Evidence D
Nirmatrelvir/Ritonavir (Paxlovid)

Theoretically, cat's claw may decrease the levels of nirmatrelvir.
Cat's claw contains rhynchophylline. Animal research suggests that this alkaloid induces CYP3A expression, thereby accelerating the metabolism of nirmatrelvir, the active component in the nirmatrelvir/ritonavir combination product. This interaction has not been reported in humans.

Likelihood Possible Evidence D
Uncaria tomentosa extract full monograph & interactions

Oregano Essential Oil2 drug types · 208 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
In vitro research shows that aristolochic acid isolated from oregano leaves has antithrombin activity. It has also been reported that oregano oil inhibits arachidonic acid-induced, and ADP-induced, platelet aggregation.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, oregano might increase the risk for hypoglycemia when taken with antidiabetes drugs.
In vitro and animal research shows that oregano extracts might lower blood glucose levels.

Likelihood Possible Evidence D
Oregano Essential Oil full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Herbal Biotic, from the product label.

Return Healthy

See all Return Healthy products
Name
Return Healthy LLC
Street Address
3143 S 840 E, Suite #342
City
St George
State
Utah
ZipCode
84790-8547
Phone Number
(435) 624-1329
Web Address
ReturnHealthy.com
Pharmacist Counseling Corner

Herbal Biotic by Return Healthy: Common Questions

Does Herbal Biotic by Return Healthy interact with any medications?
Yes. Based on its ingredients, Herbal Biotic has a known interaction with 1,183 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Herbal Biotic contains 8 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.
Is Herbal Biotic safe during pregnancy?
No — avoid this product during pregnancy. Cat's claw was traditionally used as an abortifacient and lacks safety data; Isatis, monolaurin, oregano, and clove bud also have insufficient pregnancy safety information or are best avoided. Talk with your doctor or pharmacist about your specific situation.
Can I take this while breastfeeding?
The safety data are incomplete. While monolaurin and clove are likely safe at food amounts, supplement safety isn't established. Avoid cat's claw and Isatis while breastfeeding. Ask your doctor or pharmacist before starting.
Does Herbal Biotic actually work for infections or immune support?
The evidence we hold doesn't establish that. Most ingredients — including cat's claw, oregano, and Houttuynia — don't have sufficient reliable evidence to rate for common infections or immune conditions. Isatis is rated possibly effective only for psoriasis. The product hasn't been tested as a combined formula.
What are the most common side effects I might notice?
Oregano and clove are generally well tolerated at food amounts. Cat's claw users in clinical trials reported headache, fatigue, insomnia, and nerve pain; it also carries rare but serious risks of kidney injury and blood cell changes. Oregano at high doses and clove oil are irritating to mucous membranes and skin. Allergic reactions are rare but possible.
Why can't you check three of the ingredients for drug interactions?
We don't hold monographs or interaction data for Uncaria rhynchophylla extract, Houttuynia cordata extract, or Scuttellaria baicalensis extract — that doesn't mean they're safe or unsafe with your medications, just that we haven't reviewed them. Ask your pharmacist if you're concerned.
What's monolaurin, and why is it in here?
Monolaurin is a fatty acid derived from coconut oil. It's included in this product for potential antimicrobial activity, but the evidence for bacterial vaginosis — the only condition we hold data for — is insufficient to rate. Safety as a supplement in humans is not well studied.

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.

Herbal Biotic label
Go deeper

The Full Monographs Behind Herbal Biotic’s Ingredients

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

Herb & supplement monograph

Monolaurin

Monolaurin is a compound made from lauric acid, a fatty acid found in coconut oil and breast milk, and it is marketed mostly for immune and antimicrobial support. While laboratory studies su...

Read the full Monolaurin monograph → Herb & supplement monograph

Cat's Claw

Interacts with 962 drugs

Cat's claw is a South American vine traditionally used for inflammation, joint pain, and immune support. Some small studies hint it may help with arthritis symptoms, but the overall evidence...

Read the full Cat's Claw monograph → Herb & supplement monograph

Isatis

Isatis is a plant long used in traditional Chinese medicine, mainly for sore throats, fevers, and colds. Modern evidence in people is very limited, so its benefits are not well proven. Talk...

Read the full Isatis monograph → Herb & supplement monograph

Oregano

Interacts with 208 drugs

Oregano is a common Mediterranean cooking herb that is also sold as a concentrated oil or supplement, often standardized for a compound called carvacrol. While lab studies suggest it may hav...

Read the full Oregano monograph → Herb & supplement monograph

Clove

Interacts with 977 drugs

Clove is a common cooking spice that is also used in traditional medicine, especially as a topical numbing agent for tooth pain thanks to its main compound, eugenol. Food amounts are general...

Read the full Clove monograph →
Sources

Sources & How We Checked

Herbal Biotic'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 59 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.

Monolaurin 2 references
  1. FDA, Center for Food Safety and Applied Nutrition, Office of Premarket Approval, EAFUS: A food additive database. Website: vm.cfsan.fda.gov/~dms/eafus.html (Accessed 23 February 2006).
  2. Mancuso AC, Widdice LE, Hughes BL, et al. Five Percent Monolaurin Vaginal Gel for the Treatment of Bacterial Vaginosis: A Randomized Placebo-Controlled Trial. J Low Genit Tract Dis. 2020 Jul;24(3):277-283. PubMed

See these in context on the Monolaurin monograph →

Cat's Claw 16 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. Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82. PubMed
  3. Sandoval M, Charbonnet RM, Okuhama NN, et al. Cat's claw inhibits TNFalpha production and scavenges free radicals: role in cytoprotection. Free Radic Biol Med 2000;29:71-78.
  4. Müller AC, Kanfer I. Potential pharmacokinetic interactions between antiretrovirals and medicinal plants used as complementary and African traditional medicines. Biopharm Drug Dispos. 2011;32(8):458-70. PubMed
  5. Sheng, Y., Bryngelsson, C., and Pero, R. W. Enhanced DNA repair, immune function and reduced toxicity of C-MED-100, a novel aqueous extract from Uncaria tomentosa. J Ethnopharmacol. 2000;69(2):115-126. PubMed
  6. Lamm, S., Sheng, Y., and Pero, R. W. Persistent response to pneumococcal vaccine in individuals supplemented with a novel water soluble extract of Uncaria tomentosa, C-Med-100. Phytomedicine 2001;8(4):267-274.
  7. Sheng, Y., Li, L., Holmgren, K., and Pero, R. W. DNA repair enhancement of aqueous extracts of Uncaria tomentosa in a human volunteer study. Phytomedicine 2001;8(4):275-282.
  8. Chen, C. X., Jin, R. M., Li, Y. K., Zhong, J., Yue, L., Chen, S. C., and Zhou, J. Y. Inhibitory effect of rhynchophylline on platelet aggregation and thrombosis. Zhongguo Yao Li Xue.Bao. 1992;13(2):126-130.
  9. Flythe, J. E., Rueda, J. F., Riscoe, M. K., and Watnick, S. Silicate nephrolithiasis after ingestion of supplements containing silica dioxide. Am.J.Kidney Dis. 2009;54(1):127-130. PubMed
  10. Zhou, J. and Zhou, S. Antihypertensive and neuroprotective activities of rhynchophylline: the role of rhynchophylline in neurotransmission and ion channel activity. J.Ethnopharmacol. 10-28-2010;132(1):15-27. PubMed
  11. Zhou, J. Y. and Zhou, S. W. Isorhynchophylline: A plant alkaloid with therapeutic potential for cardiovascular and central nervous system diseases. Fitoterapia 2012;83(4):617-626. PubMed
  12. Hemingway, S. R. and Phillipson, J. D. Proceedings: Alkaloids from S. American species of Uncaria (Rubiaceae). J.Pharm.Pharmacol. 1974;26 Suppl:113P.
  13. Hilepo, J. N., Bellucci, A. G., and Mossey, R. T. Acute renal failure caused by 'cat's claw' herbal remedy in a patient with systemic lupus erythematosus. Nephron 1997;77(3):361. PubMed
  14. De Paula LCL, Fonseca F, Perazzo F, et al. Uncaria tomentosa (cat's claw) improves quality of life in patients with advanced solid tumors. J Altern Complement Med. 2015;21(1):22-30.
  15. Portalatin G, Shettigar S, Carrion-Rodriguez A, et al. Ketogenic-Diet Shake Containing Uncaria tomentosa-Associated Acute Interstitial Nephritis. Case Rep Nephrol Dial 2022;12(3):219-225.
  16. Lei S, Guo A, Lu J, et al. Activation of PXR causes drug interactions with Paxlovid in transgenic mice. Acta Pharm Sin B 2023;13(11):4502-4510. PubMed

See these in context on the Cat's Claw monograph →

Isatis 3 references
  1. Herbs at a Glance — NIH NCCIH Source
  2. Herbs and Supplements — MedlinePlus Source
  3. About Herbs, Botanicals & Other Products — Memorial Sloan Kettering Cancer Center Source

See these in context on the Isatis monograph →

Oregano 12 references
  1. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  2. Benito M, Jorro G, Morales C, et al. Labiatae allergy: systemic reactions due to ingestion of oregano and thyme. Ann Allergy Asthma Immunol 1996;76:416-8. PubMed
  3. Chevallier A. Encyclopedia of Herbal Medicine. 2nd ed. New York, NY: DK Publ, Inc., 2000.
  4. Ciganda C, and Laborde A. Herbal infusions used for induced abortion. J Toxicol.Clin Toxicol. 2003;41:235-239. PubMed
  5. Futrell, J. M. and Rietschel, R. L. Spice allergy evaluated by results of patch tests. Cutis 1993;52(5):288-290.
  6. Tognolini, M., Barocelli, E., Ballabeni, V., Bruni, R., Bianchi, A., Chiavarini, M., and Impicciatore, M. Comparative screening of plant essential oils: phenylpropanoid moiety as basic core for antiplatelet activity. Life Sci. 2-23-2006;78(13):1419-1432. PubMed
  7. Goun, E., Cunningham, G., Solodnikov, S., Krasnykch, O., and Miles, H. Antithrombin activity of some constituents from Origanum vulgare. Fitoterapia 2002;73(7-8):692-694. PubMed
  8. Lemhadri, A., Zeggwagh, N. A., Maghrani, M., Jouad, H., and Eddouks, M. Anti-hyperglycaemic activity of the aqueous extract of Origanum vulgare growing wild in Tafilalet region. J Ethnopharmacol. 2004;92(2-3):251-256. PubMed
  9. McCue, P., Vattem, D., and Shetty, K. Inhibitory effect of clonal oregano extracts against porcine pancreatic amylase in vitro. Asia Pac.J Clin.Nutr. 2004;13(4):401-408.
  10. Ragi, J., Pappert, A., Rao, B., Havkin-Frenkel, D., and Milgraum, S. Oregano extract ointment for wound healing: a randomized, double-blind, petrolatum-controlled study evaluating efficacy. J.Drugs Dermatol. 2011;10(10):1168-1172.
  11. Singletary K. Oregano: overview of the literature on health benefits. Nutrition Today 2010;45(3):129-38.
  12. Silva MLAE, Lucarini R, Dos Santos FF, et al. Hypoglycemic effect of rosmarinic acid-rich infusion (RosCE) from Origanum vulgare in alloxan-induced diabetic rats. Nat Prod Res 2022;36(17):4525-4531.

See these in context on the Oregano monograph →

Clove 26 references
  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=182
  3. Kanerva L, Estlander T, Jolanki R. Occupational allergic contact dermatitis from spices. Contact Dermatitis 1996;35:157-62. PubMed
  4. Chen SJ, Wang MH, Chen IJ. Antiplatelet and calcium inhibitory properties of eugenol and sodium eugenol acetate. Gen Pharmacol 1996;27:629-33. PubMed
  5. Malson JL, Lee EM, Murty R, et al. Clove cigarette smoking: biochemical, physiological, and subjective effects. Pharmacol Biochem Behav 2003;74:739-45. PubMed
  6. Kirsch CM, Yenokida GG, Jensen WA, et al. Non-cardiogenic pulmonary oedema due to the intravenous administration of clove oil. Thorax 1990;45:235-6. PubMed
  7. Pallares, D. E. Link between clove cigarettes and urticaria? Postgrad.Med 10-1-1999;106(4):153. PubMed
  8. Barnard, D. R. Repellency of essential oils to mosquitoes (Diptera: Culicidae). J Med Entomol. 1999;36(5):625-629. PubMed
  9. Sanchez-Perez, J. and Garcia-Diez, A. Occupational allergic contact dermatitis from eugenol, oil of cinnamon and oil of cloves in a physiotherapist. Contact Dermatitis 1999;41(6):346-347. PubMed
  10. Andersen, K. E., Johansen, J. D., Bruze, M., Frosch, P. J., Goossens, A., Lepoittevin, J. P., Rastogi, S., White, I., and Menne, T. The time-dose-response relationship for elicitation of contact dermatitis in isoeugenol allergic individuals. Toxicol.Appl PubMed
  11. Alqareer, A., Alyahya, A., and Andersson, L. The effect of clove and benzocaine versus placebo as topical anesthetics. J Dent 2006;34(10):747-750. PubMed
  12. Lane, B. W., Ellenhorn, M. J., Hulbert, T. V., and McCarron, M. Clove oil ingestion in an infant. Hum.Exp Toxicol. 1991;10(4):291-294. PubMed
  13. Quirce, S., Fernandez-Nieto, M., del, Pozo, V, Sastre, B., and Sastre, J. Occupational asthma and rhinitis caused by eugenol in a hairdresser. Allergy 2008;63(1):137-138. PubMed
  14. Srivastava, K. C. and Malhotra, N. Acetyl eugenol, a component of oil of cloves (Syzygium aromaticum L.) inhibits aggregation and alters arachidonic acid metabolism in human blood platelets. Prostaglandins Leukot.Essent.Fatty Acids 1991;42(1):73-81. PubMed
  15. Dyrbye, B. A., Dubois, L., Vink, R., and Horn, J. A patient with clove oil intoxication. Anaesth.Intensive Care 2012;40(2):365-366.
  16. Guidotti, T. L., Laing, L., and Prakash, U. B. Clove cigarettes. The basis for concern regarding health effects. West J Med 1989;151(2):220-228.
  17. Anonymous. Evaluation of the health hazard of clove cigarettes. Council on Scientific Affairs. JAMA 12-23-1988;260(24):3641-3644. DOI
  18. Romaguera, C., Alomar, A., Camarasa, J. M., Garcia, Bravo B., Garcia, Perez A., Grimalt, F., Guerra, P., Lopez, Gorretcher B., Pascual, A. M., Miranda, A., and . Contact dermatitis in children. Contact Dermatitis 1985;12(5):283-284. PubMed
  19. Hackett, P. H., Rodriguez, G., and Roach, R. C. Clove cigarettes and high-altitude pulmonary edema. JAMA 6-28-1985;253(24):3551-3552. DOI
  20. Isaacs, G. Permanent local anaesthesia and anhidrosis after clove oil spillage. Lancet 4-16-1983;1(8329):882. PubMed
  21. Saeed, S. A. and Gilani, A. H. Antithrombotic activity of clove oil. J Pak Med Assoc 1994;44(5):112-115.
  22. Hartnoll, G., Moore, D., and Douek, D. Near fatal ingestion of oil of cloves. Arch.Dis Child 1993;69(3):392-393. PubMed
  23. Srivastava, K. C. Antiplatelet principles from a food spice clove (Syzygium aromaticum L) [corrected]. Prostaglandins Leukot.Essent.Fatty Acids 1993;48(5):363-372.
  24. Jiang Q, Wu Y, Zhang H, et al. Development of essential oils as skin permeation enhancers: penetration enhancement effect and mechanism of action. Pharmaceutical Biol. 2017;55(1):1592-1600. PubMed
  25. Mohan R, Jose S, Mulakkal J, Karpinsky-Semper D, Swick AG, Krishnakumar IM. Water-soluble polyphenol-rich clove extract lowers pre- and post-prandial blood glucose levels in healthy and prediabetic volunteers: an open label pilot study. BMC Complement Alt PubMed
  26. Alharbi NFM, Ahad A, Bin Jardan YA, Al-Jenoobi FI. Effect of eugenol on cytochrome P450 1A2, 2C9, 2D6, and 3A4 activity in human liver microsomes. Saudi Pharm J 2024;32(7):102118. PubMed

See these in context on the Clove monograph →

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