Major interaction on record — check this product against your medications before combining. Based on 7 of 9 ingredients. Check your meds →
Dietary supplement

Allergy Relief Ingredients & Drug Interactions

by Microtech Pro

Allergy Relief label
See full label image
Liquid Category: Other Combinations
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Allergy Relief 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: Major

Allergy Relief is a dietary supplement by Microtech Pro with 9 active ingredients. Its ingredients are commonly taken for skin conditions like acne and eczema, digestive support, diuretic ('detox') and blood purifier.Based on those ingredients, 1,115 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Bitter Orange, Nettle, Burdock. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Allergy Relief by Microtech Pro

Ask about any prescription or over-the-counter medication and we check it for interactions with Allergy Relief by Microtech Pro — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Allergy Relief by Microtech Pro

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 12, 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 9 active ingredients.

Microtech Pro Allergy Relief is a liquid with 9 ingredients total. The active ingredients are burdock, nettle, kosher vegetable glycerin, full spectrum ionic minerals, goldenrod, eyebright, blessed thistle, and bitter orange — traditional botanicals chosen for respiratory and immune support.

The formula also contains purified RO water. There are no other inactive ingredients listed.

Does it work?

Insufficient 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
Insufficient

There isn't enough reliable clinical evidence to rate this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: relieve allergy symptoms.
  • We looked for evidence on: Allergic rhinitis (hay fever), Conjunctivitis, Common cold, Nasal congestion, Eye irritation.
  • The closest evidence on file: Eyebright is rated "Insufficient Reliable Evidence To Rate" for Allergic rhinitis (hay fever) (Natural Medicines).
  • Also on file: Eyebright is rated "Insufficient Reliable Evidence To Rate" for Common cold, Conjunctivitis.
  • Also on file: Burdock is rated "Insufficient Reliable Evidence To Rate" for Common cold.

The evidence supporting this product's ingredients is limited. Nettle is possibly effective for diabetes, though that's not this product's stated purpose.

Glycerol is likely effective for constipation. For the product's allergy-relief claim, the data we hold show insufficient evidence for burdock, nettle (hay fever), eyebright (hay fever and common cold), blessed thistle, and bitter orange (hay fever).

The evidence base doesn't establish that these ingredients work for allergic rhinitis or other allergy conditions.

The evidence, ingredient by ingredient Burdock Stinging Nettle Glycerol Goldenrod Eyebright Blessed Thistle Bitter Orange

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 7 of the 7 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 7 of 7.
  • General safety write-ups exist for 7 of 7.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Burdock is likely safe as a food and short-term supplement, but human safety data are limited. It's generally well tolerated when taken by mouth, though rare allergic reactions including anaphylaxis and contact dermatitis have occurred, and one case of liver injury was reported (though other ingredients in that product may have contributed).

Nettle is generally well tolerated; the most common side effects are constipation and diarrhea. Glycerol is well tolerated in normal amounts but can cause bloating, diarrhea, nausea, vomiting, headache, and dizziness at larger doses.

Goldenrod is often well tolerated short-term but can cause allergic contact dermatitis and, in rare cases, respiratory allergic reactions. Eyebright has been reported to cause confusion, headache, nausea, constipation, cough, and nasal congestion.

Blessed thistle is often well tolerated in small amounts; higher doses (above 5 grams per cup of tea) can cause stomach irritation and vomiting. Bitter orange may be unsafe in medicinal amounts; it commonly raises blood pressure and heart rate, especially with caffeine, and rare serious effects including heart attack, stroke, and seizure have been reported.

Side effects, ingredient by ingredient Burdock Stinging Nettle Glycerol Goldenrod Eyebright Blessed Thistle Bitter Orange

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 6 of the 7 matched ingredients can interact with medications — Goldenrod, Blessed Thistle, Eyebright, Burdock, Stinging Nettle, among others.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications; heart-rhythm medications; lithium.
  • For scale: 1,116 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.

Stop and check with your pharmacist before taking Microtech Pro Allergy Relief if you use MAOIs (Major risk — hypertensive crisis possible), midazolam or other sedatives (Major risk — overdose), blood thinners or antiplatelet drugs, antidiabetes medications, diuretics, lithium, heart rhythm-altering drugs, stimulants, dextromethorphan (cough medicine), or caffeine, or if you take any drug metabolized by the liver enzyme CYP3A4 (a very common group). No interactions are documented for glycerol among the ingredients we were able to check fully.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with insufficient evidence for its stated purpose. Major medication interactions have been identified, and safety information is well characterized.

If you're taking MAOIs, sedatives like midazolam, blood thinners, diabetes medications, diuretics, lithium, or any stimulants — or if you have heart rhythm issues or high blood pressure — check your medications with the tool below before starting this product. Even if you take none of those, verify your full list, especially if you use any liver-metabolized drugs.

Nettle and burdock are generally well tolerated, but bitter orange and some other botanicals here carry real cardiovascular and drug-interaction risks.

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

Assessment coverage: 7 of 9 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Mar 24, 2020.

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 Allergy Relief, straight from the product label.

Brand Microtech Pro
Net contents 2 fl. Oz.
Market status On market
Date entered into DSLD Mar 24, 2020
DSLD ID 214841
Product type Other Combinations
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Sugar 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 Allergy Relief by Microtech Pro, 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:
0.3 tsp
Maximum serving Sizes:
0.5 tsp
IngredientAmount% DV
Burdock0 NP--
Nettle0 NP--
kosher Vegetable Glycerin0 NP--
purified RO Water0 NP--
Full Spectrum Ionic Minerals0 NP--
Goldenrod0 NP--
Eyebright0 NP--
Blessed Thistle0 NP--
Bitter Orange0 NP--

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.
General Statements

Micro Science...Mega Vitality!

Formulation

100 % Alcohol free

Vegan

Sugar free

Formula

Herbal glycerite tincture

Suggested/Recommended/Usage/Directions

Suggested uses: Take 1/3 to 1/2 tsp (2 to 2.46 ml) as needed to relieve symptoms. Shake well.

Storage

Keep in cool, dry place.

Precautions

Keep out of reach of children

FDA Disclaimer Statement

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

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

See for yourself

Allergy Relief by Microtech Pro label

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

Allergy Relief 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 Allergy Relief by Microtech Pro

These are the 9 active ingredients this product is made of. Select any to open its full monograph.

Serving size0.3 tsp Dosage formLiquid 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.

Burdock

Interacts with
122 drugs
0 NP per serving

Burdock is a traditional herb most often used for skin problems and as a so-called 'blood purifier,' but high-quality human studies are lacking and mo...

Burdock monograph & interactions

Nettle

Interacts with
164 drugs
0 NP per serving

Stinging nettle is a common plant used as food and in traditional medicine, most often for prostate symptoms, allergies, and joint pain. The evidence...

Nettle monograph & interactions

Kosher Vegetable Glycerin

No known
interactions
0 NP per serving

Glycerol (glycerin) is a sweet, syrupy compound made naturally in the body and widely used in foods, skin products, and medicines. It is well establis...

Kosher Vegetable Glycerin monograph & interactions

Purified RO Water

0 NP per serving

Full Spectrum Ionic Minerals

0 NP per serving

Goldenrod

Interacts with
75 drugs
0 NP per serving

Goldenrod is a flowering plant traditionally used as an herbal diuretic and for urinary tract health. Human evidence is limited, and while it is gener...

Goldenrod monograph & interactions

Eyebright

Interacts with
86 drugs
0 NP per serving

Eyebright is a traditional herb long used for minor eye irritation, redness, and allergy symptoms, but high-quality human studies are very limited. Th...

Eyebright monograph & interactions

Blessed Thistle

Interacts with
36 drugs
0 NP per serving

Blessed thistle is a bitter herb traditionally used to stimulate appetite and ease mild digestive complaints. High-quality human studies are lacking,...

Blessed Thistle monograph & interactions

Bitter Orange

Interacts with
957 drugs
0 NP per serving

Bitter orange is a citrus fruit whose extracts contain synephrine, a mild stimulant often added to weight-loss and energy supplements. Evidence that i...

Bitter Orange monograph & interactions
Interaction report

Allergy Relief by Microtech Pro Drug Interactions

Want to check YOUR meds against Allergy Relief?

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
1,115Drugs
10 Major 1,030 Moderate 75 Minor

Ingredients driving the most interactions

Bitter Orange 957
Nettle 164
Burdock 122
Eyebright 86
Goldenrod 75

Individual Drug Interactions

The ingredients in Allergy Relief interact with 1,115 drugs. Click any drug to see the details.

6 of the 9 ingredients in Allergy Relief interact with drugs. Each result below shows which ingredient is responsible. Bitter Orange Nettle Burdock Eyebright Goldenrod Blessed Thistle

Each ingredient & the kinds of drugs it affects

For each ingredient in Allergy Relief 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.

Bitter Orange13 drug types · 957 drugs

Midazolam (Versed)

Bitter orange might increase blood levels of midazolam.
One small clinical study shows that bitter orange juice can increase midazolam levels, likely through inhibition of cytochrome P450 3A4 (CYP3A4). Theoretically, bitter orange might increase the risk of midazolam-related adverse effects.

Likelihood Probable Evidence B
Monoamine Oxidase Inhibitors (Maois)

Theoretically, taking MAOIs with synephrine-containing bitter orange preparations might increase the hypertensive effects of synephrine, potentially leading to hypertensive crisis.
Bitter orange contains tyramine, octopamine, and synephrine, which are MAO substrates.

Likelihood Probable Evidence D
Antidiabetes Drugs

Theoretically, bitter orange might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Some clinical research shows that drinking a tea containing bitter orange and Indian snakeroot reduces fasting and postprandial glucose levels in patients with type 2 diabetes who are using antidiabetes drugs. However, it is unclear if these effects are due to bitter orange, Indian snakeroot, or the combination. An animal study also shows that p-synephrine in combination with gliclazide , a sulfonylurea, causes an additional 20% to 44% decrease in glucose levels when compared with gliclazide alone.

Likelihood Possible Evidence B
Caffeine

Bitter orange might increase blood pressure and heart rate when taken with caffeine.
Small clinical studies show that taking bitter orange in combination with caffeine can increase blood pressure and heart rate in otherwise healthy normotensive adults. Theoretically, this might increase the risk of serious cardiovascular adverse effects.

Likelihood Possible Evidence B
Colchicine

Bitter orange might affect colchicine levels.
Colchicine is a substrate of P-glycoprotein and cytochrome P450 3A4 (CYP3A4). Bitter orange has been reported to inhibit CYP3A4 and increase levels of CYP3A4 substrates. However, one small clinical study in healthy adults shows that drinking bitter orange juice 240 mL twice daily for 4 days and taking a single dose of colchicine 0.6 mg on the 4th day decreases colchicine peak serum levels by 24%, time to peak serum level by 1 hour, and overall exposure to colchicine by 20%. The clinical significance of this finding is unclear.

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

Bitter orange might increase levels of drugs metabolized by CYP3A4.
Small clinical studies suggest that single or multiple doses of freshly squeezed bitter orange juice 200-240 mL can inhibit CYP3A4 metabolism of drugs, causing increased drug levels and potentially increasing the risk of adverse effects. However, the extent of the effect of bitter orange on CYP3A4-mediated drug interactions is unknown. Some evidence suggests that bitter orange selectively inhibits intestinal CYP3A4, but not hepatic CYP3A4. Its effect on P-glycoprotein, which strongly overlaps with CYP3A4 interactions, is unclear. One small clinical study shows that drinking 8 ounces of freshly squeezed bitter orange juice has no effect on cyclosporine, which seems to be more dependent on hepatic CYP3A4 and P-glycoprotein than intestinal CYP3A4.

Likelihood Possible Evidence B
Dextromethorphan (Robitussin Dm, Others)

Bitter orange might increase blood levels of dextromethorphan.
One small clinical study shows that bitter orange juice increases dextromethorphan levels, likely through cytochrome P450 3A4 (CYP3A4) inhibition. Theoretically, bitter orange might increase the risk for dextromethorphan-related adverse effects.

Likelihood Possible Evidence B
Felodipine (Plendil)

Bitter orange might increase blood levels of felodipine.
One small clinical study shows that bitter orange juice increases felodipine levels, likely through cytochrome P450 3A4 (CYP3A4) inhibition. Theoretically, bitter orange might increase the risk for felodipine-related adverse effects.

Likelihood Probable Evidence B
Indinavir (Crixivan)

Bitter orange might increase blood levels of indinavir.
One small clinical study shows that bitter orange juice slightly increases indinavir levels, but this effect is likely to be clinically insignificant. Bitter orange selectively inhibits intestinal cytochrome P450 3A4 (CYP3A4); however, the metabolism of indinavir seems to be more dependent on hepatic CYP3A4. The effect of bitter orange on other protease inhibitors has not been studied.

Likelihood Possible Evidence B
Qt Interval-Prolonging Drugs

Theoretically, bitter orange might have an additive effect when combined with drugs that prolong the QT interval, potentially increasing the risk of ventricular arrhythmias.
One case report suggests that taking bitter orange in combination with other stimulants such as caffeine might prolong the QT interval in some patients.

Likelihood Possible Evidence D
Sildenafil (Viagra)

Bitter orange juice might increase blood levels of sildenafil.
A small clinical study in healthy adult males shows that drinking freshly squeezed bitter orange juice 250 mL daily for 3 days and taking a single dose of sildenafil 50 mg on the 3rd day increases the peak plasma concentration of sildenafil by 18% and the overall exposure to sildenafil by 44%. Theoretically, this may be due to inhibition of cytochrome P450 3A4 by bitter orange.

Likelihood Probable Evidence B
Stimulant Drugs

Theoretically, bitter orange might increase the risk of hypertension and adverse cardiovascular effects when taken with stimulant drugs.
Bitter orange appears to have stimulant effects.

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

Theoretically, bitter orange might increase levels of drug metabolized by CYP2D6.
In vitro research shows that octopamine, a constituent of bitter orange, weakly inhibits CYP2D6 enzymes. This effect has not been reported in humans.

Likelihood Possible Evidence D
Bitter Orange full monograph & interactions

Nettle4 drug types · 164 drugs

Antidiabetes Drugs

Theoretically, stinging nettle might have additive effects with antidiabetes drugs.
Clinical research shows that stinging nettle might decrease blood glucose levels in patients with diabetes.

Likelihood Possible Evidence B
Diuretic Drugs

Theoretically, combining stinging nettle with diuretic drugs may have additive effects.
Animal research suggests that the above ground parts and roots of stinging nettle may have a diuretic effect.

Likelihood Possible Evidence D
Lithium

Theoretically, stinging nettle might reduce excretion and increase levels of lithium.
Animal research suggests that stinging nettle has diuretic and natriuretic properties, which could alter the excretion of lithium. The dose of lithium might need to be decreased.

Likelihood Possible Evidence D
Warfarin (Coumadin)

There is some concern that stinging nettle might decrease the effects of anticoagulant drugs such as warfarin.
Stinging nettle contains a significant amount of vitamin K. When taken in large quantities, this might interfere with the activity of warfarin.

Likelihood Possible Evidence D
Nettle full monograph & interactions

Burdock1 drug type · 122 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, taking burdock with anticoagulant or antiplatelet drugs might increase the risk of bleeding.

In vitro research shows that lignans from burdock reduce rabbit platelet aggregation by inhibiting platelet activating factor. This interaction has not been reported in humans.

Likelihood Possible Evidence D
Burdock full monograph & interactions

Eyebright1 drug type · 86 drugs

Antidiabetes Drugs

Theoretically, eyebright might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Animal research suggests that eyebright lowers blood glucose levels.

Likelihood Possible Evidence D
Eyebright full monograph & interactions

Goldenrod1 drug type · 75 drugs

Diuretic Drugs

Theoretically, goldenrod might increase the effects and adverse effects of diuretic drugs.
In vitro and animal research suggests that goldenrod has diuretic effects.

Likelihood Possible Evidence D
Goldenrod full monograph & interactions

Blessed Thistle3 drug types · 36 drugs

Antacids

Theoretically, blessed thistle might decrease the effectiveness of antacids.
There are reports that blessed thistle increases stomach acid.

Likelihood Possible Evidence D
H2-Blockers

Theoretically, blessed thistle might decrease the effectiveness of H2-blockers.
There are reports that blessed thistle increases stomach acid.

Likelihood Possible Evidence D
Proton Pump Inhibitors (Ppis)

Theoretically, blessed thistle might decrease the effectiveness of PPIs.
There are reports that blessed thistle increases stomach acid.

Likelihood Possible Evidence D
Blessed Thistle full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Allergy Relief, from the product label.

Microtech Pro

See all Microtech Pro products
Name
Microtech Pro
Street Address
18801 Roberts Rd, Sp 79
City
Desert Hot Springs
State
CA
ZipCode
92241
Web Address
www.microtechpro.com
Pharmacist Counseling Corner

Allergy Relief by Microtech Pro: Common Questions

Does Allergy Relief by Microtech Pro interact with any medications?
Yes. Based on its ingredients, Allergy Relief has a known interaction with 1,115 medications, including 10 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Allergy Relief contains 9 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 this safe during pregnancy?
No. Burdock and nettle should be avoided during pregnancy due to lack of safety data and traditional concerns about effects on the uterus. Goldenrod, eyebright, and blessed thistle also lack enough safety information for pregnancy. Bitter orange is rated possibly unsafe. Do not take this product if you are pregnant — talk to your doctor first.
Can I breastfeed while taking this?
Nettle, goldenrod, and eyebright lack enough safety data while breastfeeding, so they should be avoided. Burdock and bitter orange also don't have enough breastfeeding safety information. Blessed thistle is used traditionally to support milk supply, but safety hasn't been well studied, so check with your doctor. The safest choice is to talk to your doctor or pharmacist before use.
What's bitter orange in here for?
Bitter orange is a traditional botanical, but the data we hold show insufficient evidence that it works for allergies or any of the conditions listed. It does contain compounds that stimulate the heart and raise blood pressure, which is why it carries serious interaction risks with certain medications.
Will this help my allergies?
The ingredients in this product — including nettle, eyebright, and bitter orange — lack reliable evidence showing they work for allergies or hay fever. If you're looking for allergy relief, talk to your pharmacist about options with stronger evidence behind them.
What are the most common side effects?
Nettle may cause constipation or diarrhea. Glycerol can cause bloating, nausea, diarrhea, headache, and dizziness, especially at higher doses. Eyebright has been reported to cause headache, nausea, and confusion. Bitter orange commonly raises blood pressure and heart rate. If you experience any of these, stop and talk to your pharmacist.
Can I take this with my diabetes medication?
No — not without checking first. Nettle, eyebright, and bitter orange all carry Moderate interactions with antidiabetes drugs and may increase the risk of low blood sugar (hypoglycemia). Talk to your pharmacist or doctor before adding this product.

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

Not sure if Allergy Relief is safe with your meds?

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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.

Allergy Relief label
Go deeper

The Full Monographs Behind Allergy Relief’s Ingredients

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

Herb & supplement monograph

Burdock

Interacts with 122 drugs

Burdock is a traditional herb most often used for skin problems and as a so-called 'blood purifier,' but high-quality human studies are lacking and most claims are not well proven. It is wid...

Read the full Burdock monograph → Herb & supplement monograph

Stinging Nettle

Interacts with 164 drugs

Stinging nettle is a common plant used as food and in traditional medicine, most often for prostate symptoms, allergies, and joint pain. The evidence is mixed and mostly preliminary, so it i...

Read the full Stinging Nettle monograph → Herb & supplement monograph

Glycerol

Glycerol (glycerin) is a sweet, syrupy compound made naturally in the body and widely used in foods, skin products, and medicines. It is well established as a laxative and a skin and eye moi...

Read the full Glycerol monograph → Herb & supplement monograph

Goldenrod

Interacts with 75 drugs

Goldenrod is a flowering plant traditionally used as an herbal diuretic and for urinary tract health. Human evidence is limited, and while it is generally well tolerated, people with certain...

Read the full Goldenrod monograph → Herb & supplement monograph

Eyebright

Interacts with 86 drugs

Eyebright is a traditional herb long used for minor eye irritation, redness, and allergy symptoms, but high-quality human studies are very limited. There is not enough reliable evidence to c...

Read the full Eyebright monograph → Herb & supplement monograph

Blessed Thistle

Interacts with 36 drugs

Blessed thistle is a bitter herb traditionally used to stimulate appetite and ease mild digestive complaints. High-quality human studies are lacking, so its benefits are not well proven. It...

Read the full Blessed Thistle monograph → Herb & supplement monograph

Bitter Orange

Interacts with 957 drugs

Bitter orange is a citrus fruit whose extracts contain synephrine, a mild stimulant often added to weight-loss and energy supplements. Evidence that it works for weight loss or performance i...

Read the full Bitter Orange monograph →
Sources

Sources & How We Checked

Allergy Relief'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 101 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.

Burdock 11 references
  1. Iwakami S, Wu JB, Ebizuka Y, Sankawa U. Platelet activating factor (PAF) antagonists contained in medicinal plants: lignans and sesquiterpenes. Chem Pharm Bull (Tokyo) 1992;40:1196-8. PubMed
  2. Sasaki Y, Kimura Y, Tsunoda T, Tagami H. Anaphylaxis due to burdock. Int J Dermatol 2003;42:472-3. PubMed
  3. Rhoads PM, Tong TG, Banner W Jr, Anderson R. Anticholinergic poisonings associated with commercial burdock root tea. J Toxicol Clin Toxicol 1984-85;22:581-4. PubMed
  4. Rodriguez P, Blanco J, Juste S, et al. Allergic contact dermatitis due to burdock (Arctium lappa). Contact Dermatitis 1995;33:134-5.
  5. Kassler, W. J., Blanc, P., and Greenblatt, R. The use of medicinal herbs by human immunodeficiency virus-infected patients. Arch Intern Med 1991;151(11):2281-2288. DOI
  6. Chan, Y. S., Cheng, L. N., Wu, J. H., Chan, E., Kwan, Y. W., Lee, S. M., Leung, G. P., Yu, P. H., and Chan, S. W. A review of the pharmacological effects of Arctium lappa (burdock). Inflammopharmacology. 2011;19(5):245-254. PubMed
  7. Breed, F. B. and Kuwabara, T. Burdock ophthalmia. Arch Ophthalmol 1966;75(1):16-20.
  8. Bryson, P. D., Watanabe, A. S., Rumack, B. H., and Murphy, R. C. Burdock root tea poisoning. Case report involving a commercial preparation. JAMA 5-19-1978;239(20):2157. DOI
  9. <p>Fletcher GF<span>, </span>Cantwell JD. Burdock root tea poisoning. JAMA <span>1978 Oct 6;240(15):1586.</span></p> DOI
  10. Latif A, Fichadiya H, Abid F, Capo G. Herbal Teas and Thrombocytopenia: A Curious Case of Yellow Dock and Burdock-Induced Thrombocytopenia. Eur J Case Rep Intern Med 2022;9(3):003247. PubMed
  11. Niazi B, Ahmed K, Ahmed M, Ali S, Song K, Elias S. Drug-Induced Liver Injury from Herbal Liver Detoxification Tea. Case Rep Gastroenterol 2022;16(3):612-617. PubMed

See these in context on the Burdock monograph →

Stinging Nettle 23 references
  1. Monographs on the medicinal uses of plant drugs. Exeter, UK: European Scientific Co-op Phytother, 1997.
  2. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  3. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  4. Schulz V, Hansel R, Tyler VE. Rational Phytotherapy: A Physician's Guide to Herbal Medicine. Terry C. Telger, transl. 3rd ed. Berlin, GER: Springer, 1998.
  5. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  6. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  7. Mittman P. Randomized, double-blind study of freeze-dried Urtica dioica in the treatment of allergic rhinitis. Planta Med 1990;56:44-7.
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Eyebright 4 references
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Bitter Orange 47 references
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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.

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