Interactions on record — worth a quick check against your medications. Based on 3 of 4 ingredients. Check your meds →
Dietary supplement

Earth Dragon Ingredients & Drug Interactions

by Allergy Research Group

Earth Dragon label
See full label image
Capsule Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Earth Dragon 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

Earth Dragon is a dietary supplement by Allergy Research Group with 4 active ingredients. Its ingredients are commonly taken for fluid retention and swelling, digestive complaints, sleep and calming support.Based on those ingredients, 1,215 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Grass-Leaf Sweetflag (root) extract, Bai-Zhu Atractylodes (root) extract, Poria extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Earth Dragon by Allergy Research Group

Ask about any prescription or over-the-counter medication and we check it for interactions with Earth Dragon by Allergy Research Group — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Earth Dragon by Allergy Research Group

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 4 active ingredients.
  • “Proprietary Blend” is a proprietary blend — the label gives one combined amount (1.50 Gram(s)) without saying how much of each component you get.

Earth Dragon has four active ingredients. Earthworm extract, poria mushroom extract, calamus (Grass-Leaf Sweetflag root extract), and atractylodes (Bai-Zhu root extract) are combined in a proprietary blend.

The product also contains inactive ingredients — hydroxypropyl methylcellulose, microcrystalline cellulose, cellulose, and L-leucine — which serve as capsule material, binder, and flow agent.

Does it work?

Couldn't assess
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 assessable

The label doesn't state a purpose we can grade — see each ingredient's own graded uses on its monograph instead.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence for Earth Dragon's ingredients is not established in the data we hold. All the conditions listed for poria, calamus, and atractylodes — including cancer, chronic fatigue, dementia, diabetes, asthma, anorexia, and common cold — carry a rating of insufficient reliable evidence.

We have no effectiveness data on file for earthworm extract.

The evidence, ingredient by ingredient Poria Mushroom Calamus Atractylodes

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

Poria mushroom extract is generally well tolerated in traditional use, but human safety data are limited. Rare allergic reactions, including allergic rhinitis and asthma, have been reported.

Calamus carries a significant safety concern: some forms contain beta-asarone, a possible carcinogen banned from food by the FDA, and calamus may cause cancer. Nausea, vomiting, and in rare cases intestinal paralysis and rapid heartbeat have been reported.

Atractylodes has limited human safety data; common side effects are allergic reaction, dry mouth, and nausea. We have no pregnancy or breastfeeding safety data on file for atractylodes.

Side effects, ingredient by ingredient Poria Mushroom Calamus Atractylodes

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 3 matched ingredients can interact with medications — Poria Mushroom, Calamus, Atractylodes.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 1,216 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 Earth Dragon, double-check if you're on sedatives or sleep aids (CNS depressants), blood pressure medications (antihypertensive drugs), blood thinners or antiplatelet drugs, drugs broken down by your liver via CYP3A4 or CYP2D6 pathways, anticholinergic drugs, cholinergic drugs, or MAOIs (antidepressants). Also check if you take heartburn medications (H2-blockers).

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This product carries documented medication interaction risks, particularly with sedatives, blood pressure drugs, blood thinners, and drugs processed through the liver. Calamus specifically has safety concerns related to potential cancer risk from beta-asarone.

The effectiveness of any ingredient is not established in our data. Talk to your pharmacist before taking Earth Dragon, especially if you're on any prescription medications or planning to use it during pregnancy or while breastfeeding.

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

Assessment coverage: 3 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Nov 21, 2018.

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 Earth Dragon, straight from the product label.

Brand Allergy Research Group
Barcode (UPC) 713947739901
Net contents 150 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD Nov 21, 2018
DSLD ID 183479
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years)
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 Earth Dragon by Allergy Research Group, 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:
3 Capsule(s)
Maximum serving Sizes:
3 Capsule(s)
Servings per container
50
UPC/BARCODE
713947739901
IngredientAmount% DV
Proprietary Blend1.5 Gram(s)--
Earthworm extract0 NP--
Poria extract0 NP--
Grass-Leaf Sweetflag (root) extract0 NP--
Bai-Zhu Atractylodes (root) extract0 NP--

Other ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Cellulose, L-Leucine

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.
Formula

A combination of herbs and earthworm extract or lumbricus.

Suggested/Recommended/Usage/Directions

Suggested use As a dietary supplement, 3 capsules two times daily between meals, or as directed by a healthcare practitioner.

Storage

Keep in a cool, dry place, tightly capped.

General Statements

No labeled for sale in California.

FDA Statement of Identity

Dietary Supplement

Formulation

Hypoallergenic

General

Rev. 006

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

See for yourself

Earth Dragon by Allergy Research Group label

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

Earth Dragon 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 Earth Dragon by Allergy Research Group

These are the 4 active ingredients this product is made of. Select any to open its full monograph.

Serving size3 Capsule(s) Dosage formCapsule Servings per container50 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

1.5 Gram(s) per serving

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

Interaction report

Earth Dragon by Allergy Research Group Drug Interactions

Want to check YOUR meds against Earth Dragon?

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
1,215Drugs
1,171 Moderate 44 Minor

Ingredients driving the most interactions

Grass-Leaf Sweetflag (root) extract 1,117
Bai-Zhu Atractylodes (root) extract 801
Poria extract 417

Individual Drug Interactions

The ingredients in Earth Dragon interact with 1,215 drugs. Click any drug to see the details.

3 of the 4 ingredients in Earth Dragon interact with drugs. Each result below shows which ingredient is responsible. Grass-Leaf Sweetflag (root) extract Bai-Zhu Atractylodes (root) extract Poria extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Earth Dragon 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.

Grass-Leaf Sweetflag (root) extract10 drug types · 1,117 drugs

Anticholinergic Drugs

Theoretically, concurrent use of anticholinergic drugs and calamus might decrease the effectiveness of the anticholinergic drug.
In vitro evidence shows that calamus can inhibit acetylcholinesterase (AChE).

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, taking calamus with other antihypertensive medications might increase the risk of hypotension.
Animal research shows that calamus decreases the rate and strength of the heartbeat, which might lower blood pressure. use with caution.

Likelihood Possible Evidence D
Cholinergic Drugs

Theoretically, concurrent use of cholinergic drugs and calamus might have an additive effect and increase the risk of cholinergic effects.
In vitro evidence shows that calamus can inhibit acetylcholinesterase (AChE).

Likelihood Possible Evidence D
Cns Depressants

Theoretically, concurrent use of CNS depressants and calamus might have an additive effect and increase the risk of sedative effects.
Animal research shows that calamus is a CNS depressant and increases gamma-aminobutyric acid levels.

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

Theoretically, taking calamus with drugs metabolized by CYP2D6 might increase drug levels and potentially increase the risk of adverse effects.
In vitro research shows that calamus extract inhibits CYP2D6 enzyme.

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

Theoretically, taking calamus with drugs metabolized by CYP3A4 might increase drug levels and potentially increase the risk of adverse effects.
In vitro research shows that calamus extract inhibits CYP3A4 enzyme.

Likelihood Possible Evidence D
Monoamine Oxidase Inhibitors (Maois)

Theoretically, calamus might potentiate the effects and adverse effects of MAOIs.
Some reports suggest that calamus increases the effects of MAOIs.

Likelihood Possible Evidence D
Antacids

Theoretically, taking calamus might reduce the effectiveness of antacids.
Some research suggests that calamus lowers gastric pH.

Likelihood Possible Evidence D
H2-Blockers

Theoretically, taking calamus might reduce the effectiveness of H2-blockers.
Some research suggests that calamus lowers gastric pH.

Likelihood Possible Evidence D
Proton Pump Inhibitors (Ppis)

Theoretically, taking calamus might reduce the effectiveness of PPIs.
Some research suggests that calamus lowers gastric pH.

Likelihood Possible Evidence D
Grass-Leaf Sweetflag (root) extract full monograph & interactions

Bai-Zhu Atractylodes (root) extract5 drug types · 801 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, atractylodes might increase the risk of bleeding when used concomitantly with anticoagulant and antiplatelet drugs.
Laboratory research suggests that atractylenolides II and III, constituents of atractylodes, reduce platelet activation. So far, this has not been shown in humans.

Likelihood Possible Evidence D
Aromatase Inhibitors

Theoretically, atractylodes may have an additive effect when used with other aromatase inhibitors.
Laboratory research suggests that atractylodes and its constituents exhibit aromatase inhibitor effects.

Likelihood Possible Evidence D
Hexobarbital

Theoretically, taking atractylodes may prolong the therapeutic and adverse effects of hexobarbital.
In animals, atractylodes has been shown to prolong the effects of hexobarbital. These effects have not been shown in humans.

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

Theoretically, atractylodes might decrease the levels of CYP1A2 substrates.
In animals, atractylodes administered at high doses has been shown to induce CYP1A2 activity. This effect has not been shown in humans.

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

Theoretically, atractylodes might increase the levels of CYP3A4 substrates.
In animals, atractylodes administered at high doses has been shown to inhibit CYP3A1 activity, which is a homolog to the human CYP3A4 enzyme. This effect has not been shown in humans.

Likelihood Possible Evidence D
Bai-Zhu Atractylodes (root) extract full monograph & interactions

Poria extract3 drug types · 417 drugs

Anticholinergic Drugs

Theoretically, poria mushroom might decrease the clinical effects of anticholinergic drugs.
In animal research, poria mushroom essential oil reduces acetylcholinesterase activity. This interaction has not been shown in humans.

Likelihood Possible Evidence D
Cholinergic Drugs

Theoretically, poria mushroom might have additive effects when used with cholinergic drugs.
In animal research, poria mushroom essential oil reduces acetylcholinesterase activity. This interaction has not been shown in humans.

Likelihood Possible Evidence D
Cns Depressants

Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.
Animal research shows that poria mushroom extract has sedative properties. This interaction has not been shown in humans.

Likelihood Possible Evidence D
Poria extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Earth Dragon, from the product label.

Allergy Research Group

See all Allergy Research Group products
Name
Allergy Research Group
City
Alameda
State
CA
ZipCode
94502
Phone Number
510-263-2000
Web Address
www.allergyresearchgroup.com
Pharmacist Counseling Corner

Earth Dragon by Allergy Research Group: Common Questions

Does Earth Dragon by Allergy Research Group interact with any medications?
Yes. Based on its ingredients, Earth Dragon has a known interaction with 1,215 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Earth Dragon contains 4 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 Earth Dragon safe during pregnancy or while breastfeeding?
No — calamus is rated likely unsafe in pregnancy due to potential effects on the uterus and toxic compounds; avoid it while pregnant. Calamus has no safety data while breastfeeding, so avoidance is recommended. Poria and atractylodes have insufficient data, so talk with your doctor or pharmacist for personalized advice.
What does earthworm extract do in this product?
We have no data on file about earthworm extract's role or effectiveness.
Can I take Earth Dragon if I'm already on other medications?
You'll need to check your specific drugs first — this product has documented interactions with many common medication types. Use the medication checker on this page with each of your prescriptions before starting.
What side effects have been reported with Earth Dragon's ingredients?
Nausea and vomiting are the most common with calamus. Allergic reactions, including rashes and asthma, have been reported with poria. Atractylodes may cause allergic reaction, dry mouth, or nausea. Calamus may also cause rapid heartbeat and, rarely, intestinal paralysis.
Why is calamus a concern in this product?
Calamus contains beta-asarone, a possible carcinogen banned from food by the FDA. The facts note calamus is likely unsafe for use because it may increase cancer risk. It also interacts with many medication types.

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.

Earth Dragon label
Go deeper

The Full Monographs Behind Earth Dragon’s Ingredients

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

Herb & supplement monograph

Poria Mushroom

Interacts with 417 drugs

Poria mushroom (Fu Ling) is a fungus long used in Traditional Chinese Medicine, mainly as a mild diuretic and digestive and calming aid. Modern scientific evidence in humans is very limited,...

Read the full Poria Mushroom monograph → Herb & supplement monograph

Calamus

Interacts with 1,117 drugs

Calamus is a swamp plant with a long history in Ayurvedic and traditional Chinese medicine, mostly for digestive and nervous-system complaints. However, it contains beta-asarone, a compound...

Read the full Calamus monograph → Herb & supplement monograph

Atractylodes

Interacts with 801 drugs

Atractylodes is a root used for centuries in traditional Chinese, Japanese, and Thai medicine, mostly for digestive complaints and fatigue, often as part of multi-herb formulas. Modern resea...

Read the full Atractylodes monograph →
Sources

Sources & How We Checked

Earth Dragon'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 22 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.

Poria Mushroom 3 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. Kim H, Park I, Park K, Park S, Kim YI, Park BG. The positive effects of Poria cocos extract on quality of sleep in insomnia rat models. Int J Environ Res Public Health 2022;19(11):6629. PubMed
  3. Lv Q, Di X, Bian B, Li K, Guo J. Neuroprotective effects of Poria cocos (Agaricomycetes) essential oil on Aß1-40-induced learning and memory deficit in rats. Int J Med Mushrooms 2022;24(10):73-82.

See these in context on the Poria Mushroom monograph →

Calamus 13 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  3. Brinker F. Herb Contraindications and Drug Interactions. Sandy, OR: Eclectic Medical Publ, 1997.
  4. Shoba, F. G. and Thomas, M. Study of antidiarrhoeal activity of four medicinal plants in castor-oil induced diarrhoea. J Ethnopharmacol 2001;76(1):73-76. PubMed
  5. Koo, B. S., Park, K. S., Ha, J. H., Park, J. H., Lim, J. C., and Lee, D. U. Inhibitory effects of the fragrance inhalation of essential oil from Acorus gramineus on central nervous system. Biol Pharm.Bull. 2003;26(7):978-982. PubMed
  6. Oh, M. H., Houghton, P. J., Whang, W. K., and Cho, J. H. Screening of Korean herbal medicines used to improve cognitive function for anti-cholinesterase activity. Phytomedicine 2004;11(6):544-548. PubMed
  7. Panchal, G. M., Venkatakrishna-Bhatt, H., Doctor, R. B., and Vajpayee, S. Pharmacology of Acorus calamus L. Indian J Exp.Biol 1989;27(6):561-567.
  8. Vargas, C. P., Wolf, L. R., Gamm, S. R., and Koontz, K. Getting to the root (Acorus calamus) of the problem. J Toxicol Clin Toxicol 1998;36(3):259-260.
  9. Pandit S, Mukherjee PK, Ponnusankar S, Venkatesh M, Srikanth N. Metabolism mediated interaction of a-asarone and Acorus calamus with CYP3A4 and CYP2D6. Fitoterapia 2011;82(3):369-74.
  10. Sharma V, Singh I, Chaudhary P. Acorus calamus (The Healing Plant): a review on its medicinal potential, micropropagation and conservation. Nat Prod Res. 2014;28(18):1454-66.
  11. Björnstad K, Helander A, Hultén P, Beck O. Bioanalytical investigation of asarone in connection with Acorus calamus oil intoxications. J Anal Toxicol 2009;33(9):604-9. PubMed
  12. Federal Register. Volume 33, Page 6967. U.S. Government Publishing Office. http://api.fdsys.gov/link?collection=fr&volume=33&page=6967. Accessed May 23, 2018.
  13. Electronic Code of Federal Regulations. Title 21. Part 189 - Substances Prohibited From Use in Human Food. Available at: https://www.ecfr.gov/cgi-bin/text-idx?SID=259fa8a1284cad42676075c8425c7333&mc=true&node=pt21.3.189&rgn=div5.

See these in context on the Calamus monograph →

Atractylodes 6 references
  1. Liu Y, Jia Z, Dong L, et al. A randomized pilot study of atractylenolide I on gastric cancer cachexia patients. Evid Based Complement Alternat Med 2008;5:337-44. PubMed
  2. Chen Y, Yang W, Guo L, Wu X, Zhang T, Liu J, Zhang J. Atractylodes lactone compounds inhibit platelet activation. Platelets. 2017 Mar;28(2):194-202. PubMed
  3. Jiang H, Shi J, Li Y. Screening for compounds with aromatase inhibiting activities from Atractylodes macrocephala Koidz. Molecules. 2011 Apr 14;16(4):3146-51. PubMed
  4. Koonrungsesomboon N, Na-Bangchang K, Karbwang J. Therapeutic potential and pharmacological activities of Atractylodes lancea (Thunb.) DC. Asian Pac J Trop Med. 2014 Jun;7(6):421-8. PubMed
  5. Li L, Tang LY, Man GC, Yeung BH, Lau CB, Leung PC, Wang CC. Potential reproductive toxicity of Largehead Atractylodes Rhizome, the most commonly used Chinese medicine for threatened miscarriage. Hum Reprod. 2011 Dec;26(12):3280-8. PubMed
  6. Muhamad N, Plengsuriyakarn T, Na-Bangchang K. Atractylodes lancea for cholangiocarcinoma: Modulatory effects on CYP1A2 and CYP3A1 and pharmacokinetics in rats and biodistribution in mice. PLoS One 2022;17(11):e0277614. PubMed

See these in context on the Atractylodes monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

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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