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Dietary supplement

Corydalis (Yanhusuo) 450 mg Ingredients & Drug Interactions

by TerraVita Premium Collection

Corydalis (Yanhusuo) 450 mg label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Corydalis (Yanhusuo) 450 mg 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

Corydalis (Yanhusuo) 450 mg is a dietary supplement by TerraVita Premium Collection with 1 active ingredient. Its ingredients are commonly taken for pain relief, menstrual cramps, headache.Based on those ingredients, 1,160 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Corydalis yanhusuo. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Corydalis (Yanhusuo) 450 mg by TerraVita Premium Collection

Ask about any prescription or over-the-counter medication and we check it for interactions with Corydalis (Yanhusuo) 450 mg by TerraVita Premium Collection — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Corydalis (Yanhusuo) 450 mg by TerraVita Premium Collection

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

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

Corydalis yanhusuo by TerraVita Premium Collection contains one active ingredient: Corydalis yanhusuo, a root traditionally used in Asian herbal practice. Each capsule holds 450 mg.

The product also contains gelatin and water as inactive ingredients (capsule material and carrier).

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

This is a single-ingredient Corydalis Yanhusuo product and its label doesn't state a use — see Corydalis Yanhusuo's own graded uses on its monograph.

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 Corydalis yanhusuo isn't established in the data we hold. The product is marketed for headache, constipation, depression, indigestion, and Helicobacter pylori infection, but we have insufficient reliable evidence to rate it for any of these uses.

Its long traditional history is noted, but human safety and efficacy data remain limited.

The evidence, ingredient by ingredient Corydalis Yanhusuo

How safe is it?

Some data gaps
Safety Information · database check
Some gaps

Safety data exists for these ingredients, but with some important gaps.

Why this rating?
  • We hold adverse-effect (side-effect) data for 0 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Corydalis yanhusuo should be avoided during pregnancy and while breastfeeding — safety information is not adequate and the risks are not yet understood. The product has a long history of traditional use, but human safety data are limited, and quality varies across products.

We have no trial adverse effects on file, though that doesn't mean none occur.

Side effects, ingredient by ingredient Corydalis Yanhusuo

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?
  • 1 of the 1 matched ingredient can interact with medications — Corydalis Yanhusuo.
  • 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: 1,161 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 this product, check your exact medications against our tool below if you take blood thinners or antiplatelet drugs (Moderate), blood pressure medications, sedating medications, diabetes drugs, or metformin, or drugs metabolized by the liver enzymes CYP2D6, CYP2C9, or CYP3A4 (all Moderate). All of these can interact with berberine in Corydalis yanhusuo.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and some safety-information gaps remain.

Corydalis yanhusuo is a single-ingredient traditional herbal product with notable interactions across many medications, especially blood thinners, blood pressure drugs, sedating medications, and diabetes drugs. If you take any prescription medication — or if you're pregnant or breastfeeding — talk with your pharmacist or doctor before starting it.

The evidence for what it does isn't well established yet.

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

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Feb 21, 2023.

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 Corydalis (Yanhusuo) 450 mg, straight from the product label.

Brand TerraVita Premium Collection
Barcode (UPC) 064435115586
Net contents 100 Capsule(s)
Market status On market
Date entered into DSLD Feb 21, 2023
DSLD ID 286544
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
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 Corydalis (Yanhusuo) 450 mg by TerraVita Premium Collection, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
100
UPC/BARCODE
064435115586
IngredientAmount% DV
Corydalis yanhusuo450 mg--

Other ingredients: Gelatin, Water

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.
FDA Statement of Identity

A Dietary Supplement

Brand IP Statement(s)

Copyright 2004 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Suggested/Recommended/Usage/Directions

Directions Take 1 capsule, 3 times daily, with meals.

General Statements

TerraVita is an exclusive line of premium natural products that use the finest, purest and most potent ingredients in the world. TerraVita's hallmarks are the highest possible standards of purity, potency, stability and freshness. All products are prepared with the greatest quality control, from raw materials through the entire manufacturing process, right up to the moment your product is sealed for freshness and shipped to you.

Please recycle!

FDA Disclaimer Statement

Statements not evaluated by FDA. Product 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

Corydalis (Yanhusuo) 450 mg by TerraVita Premium Collection label

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

Corydalis (Yanhusuo) 450 mg 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 Corydalis (Yanhusuo) 450 mg by TerraVita Premium Collection

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container100 Amounts shown are per serving.

Corydalis yanhusuo

Interacts with
1,160 drugs
450 mg per serving

Corydalis yanhusuo is a traditional Chinese herb used mainly for pain. Some early laboratory and animal research suggests its compounds may affect pai...

Corydalis yanhusuo monograph & interactions

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

Interaction report

Corydalis (Yanhusuo) 450 mg by TerraVita Premium Collection Drug Interactions

Want to check YOUR meds against Corydalis (Yanhusuo) 450 mg?

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
1,160Drugs
1,160 Moderate

Ingredients driving the most interactions

Corydalis yanhusuo 1,160

Individual Drug Interactions

The ingredients in Corydalis (Yanhusuo) 450 mg interact with 1,160 drugs. Click any drug to see the details.

1 of the 1 ingredient in Corydalis (Yanhusuo) 450 mg interact with drugs. Each result below shows which ingredient is responsible. Corydalis yanhusuo

Each ingredient & the kinds of drugs it affects

For each ingredient in Corydalis (Yanhusuo) 450 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Corydalis yanhusuo14 drug types · 1,160 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, Corydalis yanhusuo might increase the risk of bleeding when used with anticoagulant or antiplatelet drugs.
Corydalis yanhusuo contains berberine. In vitro and in vivo research suggest that berberine can inhibit platelet aggregation. Theoretically, Corydalis yanhusuo might also inhibit platelet aggregation.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, Corydalis yanhusuo may increase the risk of hypoglycemia when taken with antidiabetes drugs.
Corydalis yanhusuo contains berberine. Clinical research shows that berberine may lower blood glucose levels. Theoretically, Corydalis yanhusuo might also lower blood glucose levels.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, Corydalis yanhusuo might have additive effects with antihypertensive drugs.
Corydalis yanhusuo contains berberine. Animal research suggests that berberine can have hypotensive effects. Also, a clinical study suggests that taking berberine in combination with amlodipine can lower systolic and diastolic blood pressure when compared with amlodipine alone. Theoretically, Corydalis yanhusuo might also reduce blood pressure.

Likelihood Possible Evidence D
Cns Depressants

Theoretically, Corydalis yanhusuo might increase the sedative effects of CNS depressants.
Corydalis yanhusuo contains berberine. Animal research suggests that berberine may have sedative effects. Theoretically, Corydalis yanhusuo might also have CNS depressants effects.

Likelihood Possible Evidence D
Cyclosporine (Neoral, Sandimmune)

Theoretically, Corydalis yanhusuo might increase blood levels of cyclosporine.
Corydalis yanhusuo contains berberine. Preliminary clinical research shows that berberine can reduce metabolism of cyclosporine and increase serum levels, likely through inhibition of cytochrome P450 3A4 (CYP3A4), which metabolizes cyclosporine. Theoretically, Corydalis yanhusuo might also reduce the metabolism of cyclosporine.

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

Theoretically, Corydalis yanhusuo might increase serum levels of drugs metabolized by CYP2C9.
Corydalis yanhusuo contains berberine. Preliminary clinical research shows that berberine can inhibit CYP2C9. Theoretically, Corydalis yanhusuo might also inhibit CYP2C9.

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

Theoretically, Corydalis yanhusuo might increase serum levels of drugs metabolized by CYP2D6.
Corydalis yanhusuo contains berberine. In vitro research and preliminary clinical evidence show that berberine can inhibit CYP2D6. Theoretically, Corydalis yanhusuo might also inhibit CYP2D6.

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

Theoretically, Corydalis yanhusuo might increase serum levels of drugs metabolized by CYP3A4.
Corydalis yanhusuo contains berberine. In vitro research and preliminary clinical research show that berberine moderately inhibits CYP3A4. Theoretically, Corydalis yanhusuo might also inhibit CYP3A4.

Likelihood Possible Evidence D
Dextromethorphan (Robitussin Dm, Others)

Theoretically, Corydalis yanhusuo may increase serum levels of dextromethorphan.
Corydalis yanhusuo contains berberine. Preliminary clinical research shows that berberine can inhibit cytochrome P450 2D6 (CYP2D6) activity and reduce the metabolism of dextromethorphan. Theoretically, Corydalis yanhusuo may also inhibit the metabolism of dextromethorphan.

Likelihood Possible Evidence D
Losartan (Cozaar)

Theoretically, Corydalis yanhusuo might reduce the therapeutic effects of losartan by decreasing its conversion to its active form.
Corydalis yanhusuo contains berberine. Preliminary clinical research suggests that berberine can inhibit cytochrome P450 2C9 (CYP2C9) activity and reduce metabolism of losartan. Theoretically, Corydalis yanhusuo might also inhibit the metabolism of losartan.

Likelihood Possible Evidence D
Metformin (Glucophage)

Theoretically, Corydalis yanhusuo might increase the therapeutic and adverse effects of metformin.
Corydalis yanhusuo contains berberine. In vitro and animal studies show that berberine can increase the systemic exposure and half-life of metformin, potentially increasing metformin's effects and side effects. This interaction seems to be most apparent when berberine is administered 2 hours prior to metformin. Taking berberine and metformin at the same time does not appear to increase systemic exposure to metformin. It is unclear if Corydalis yanhusuo might have this same effect.

Likelihood Possible Evidence D
Midazolam (Versed)

Theoretically, Corydalis yanhusuo might reduce metabolism of midazolam, which might increase the risk of severe adverse effects.
Corydalis yanhusuo contains berberine. Preliminary clinical research shows that berberine can inhibit cytochrome P450 3A4 (CYP3A4) activity and reduce metabolism of midazolam. Theoretically, Corydalis yanhusuo might also inhibit the metabolism of midazolam.

Likelihood Possible Evidence D
Pentobarbital (Nembutal)

Theoretically, Corydalis yanhusuo might increase the sedative effect of pentobarbital.
Corydalis yanhusuo contains berberine. Animal research shows that berberine can prolong pentobarbital-induced sleeping time. Theoretically, Corydalis yanhusuo might increase the sedative effects of pentobarbital.

Likelihood Possible Evidence D
Tacrolimus (Prograf)

Theoretically, Corydalis yanhusuo might increase blood levels of tacrolimus.
Corydalis yanhusuo contains berberine. In a 16-year-old patient with idiopathic nephrotic syndrome who was being treated with tacrolimus 6.5 mg twice daily, intake of berberine 200 mg three times daily increased the blood concentration of tacrolimus from 8 to 22 ng/mL. Following a reduction of the tacrolimus dose to 3 mg daily, blood levels of tacrolimus decreased to 12 ng/mL. It is unclear if Corydalis yanhusuo might have this same effect.

Likelihood Possible Evidence D
Corydalis yanhusuo full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Corydalis (Yanhusuo) 450 mg, from the product label.

TerraVita Premium Collection

See all TerraVita Premium Collection products
Name
TerraVita Fine Whole Herbs
City
Brampton
State
Ontario
Pharmacist Counseling Corner

Corydalis (Yanhusuo) 450 mg by TerraVita Premium Collection: Common Questions

Does Corydalis (Yanhusuo) 450 mg by TerraVita Premium Collection interact with any medications?
Yes. Based on its ingredients, Corydalis (Yanhusuo) 450 mg has a known interaction with 1,160 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Corydalis (Yanhusuo) 450 mg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism 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 Corydalis safe during pregnancy?
No. The safety information isn't adequate and Corydalis yanhusuo is rated likely unsafe during pregnancy. Avoid it if you're pregnant or trying to become pregnant, and talk with your doctor or pharmacist about what's safe for you.
Can I take this while breastfeeding?
No. There isn't enough safety information and Corydalis yanhusuo is rated likely unsafe while breastfeeding. If you're nursing, avoid this product and speak with your pharmacist or doctor about alternatives.
Does Corydalis yanhusuo actually work for headaches or indigestion?
We have insufficient reliable evidence to say whether it works for either. While it has a long traditional history of use, human studies supporting it for these conditions aren't established in our data.
Why does this product interact with so many medications?
The active ingredient, berberine, inhibits three major liver enzymes your body uses to clear drugs. When an enzyme is slowed down, medications can build up in your system. Berberine also has its own effects on blood pressure, blood clotting, and blood sugar that can add to what your medications do.
What is Corydalis yanhusuo used for traditionally?
Corydalis yanhusuo is a root used in traditional Asian herbal medicine, marketed in this product for headache, constipation, depression, indigestion, and Helicobacter pylori infection. The product facts don't describe the traditional uses in detail, so your pharmacist or herbalist may have more context.

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.

Corydalis (Yanhusuo) 450 mg label
Go deeper

The Full Monographs Behind Corydalis (Yanhusuo) 450 mg’s Ingredients

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

Herb & supplement monograph

Corydalis Yanhusuo

Interacts with 1,160 drugs

Corydalis yanhusuo is a traditional Chinese herb used mainly for pain. Some early laboratory and animal research suggests its compounds may affect pain and the nervous system, but high-quali...

Read the full Corydalis Yanhusuo monograph →
Sources

Sources & How We Checked

Corydalis (Yanhusuo) 450 mg'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 21 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.

Corydalis Yanhusuo 21 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. Chan E. Displacement of bilirubin from albumin by berberine. Biol Neonate 1993;63:201-8. PubMed
  3. Janbaz KH, Gilani AH. Studies on preventive and curative effects of berberine on chemical-induced hepatotoxicity in rodents. Fitoterapia 2000;71:25-33.. PubMed
  4. Wu X, Li Q, Xin H, Yu A, Zhong M. Effects of berberine on the blood concentration of cyclosporin A in renal transplanted recipients: clinical and pharmacokinetic study. Eur J Clin Pharmacol 2005;61:567-72. PubMed
  5. Zhang Y, Li X, Zou D, et al. Treatment of type 2 diabetes and dyslipidemia with the natural plant alkaloid berberine. J Clin Endocrinol Metab 2008;93:2559-65. PubMed
  6. 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
  7. Chatterjee P, Franklin MR. Human cytochrome p450 inhibition and metabolic-intermediate complex formation by goldenseal extract and its methylenedioxyphenyl components. Drug Metab Dispos 2003;31:1391-7. PubMed
  8. Shanbhag, S. M., Kulkarni, H. J., and Gaitonde, B. B. Pharmacological actions of berberine on the central nervous system. Jpn.J Pharmacol 1970;20(4):482-487. PubMed
  9. Wu, J. F. and Liu, T. P. [Effects of berberine on platelet aggregation and plasma levels of TXB2 and 6-keto-PGF1 alpha in rats with reversible middle cerebral artery occlusion]. Yao Xue.Xue.Bao. 1995;30(2):98-102.
  10. Peng, W. H., Hsieh, M. T., and Wu, C. R. Effect of long-term administration of berberine on scopolamine-induced amnesia in rats. Jpn J Pharmacol 1997;74(3):261-266. DOI
  11. Sabir M and Bhide NK. Study of some pharmacological actions of berberine. Ind J Physiol & Pharmac 1971;15(3):111-132.
  12. Tripathi YB and Shukla SD. Berberis artistata inhibits PAF induced aggregation of rabbit platelets. Phytotherapy Research 1996;10:628-630.
  13. Yin, J., Xing, H., and Ye, J. Efficacy of berberine in patients with type 2 diabetes mellitus. Metabolism 2008;57(5):712-717. PubMed
  14. Zhang, H., Wei, J., Xue, R., Wu, J. D., Zhao, W., Wang, Z. Z., Wang, S. K., Zhou, Z. X., Song, D. Q., Wang, Y. M., Pan, H. N., Kong, W. J., and Jiang, J. D. Berberine lowers blood glucose in type 2 diabetes mellitus patients through increasing insulin re
  15. Guo, Y., Chen, Y., Tan, Z. R., Klaassen, C. D., and Zhou, H. H. Repeated administration of berberine inhibits cytochromes P450 in humans. Eur J Clin Pharmacol 2012;68(2):213-217. PubMed
  16. Wei, W., Zhao, H., Wang, A., Sui, M., Liang, K., Deng, H., Ma, Y., Zhang, Y., Zhang, H., and Guan, Y. A clinical study on the short-term effect of berberine in comparison to metformin on the metabolic characteristics of women with polycystic ovary syndro
  17. Hermann, R. and von, Richter O. Clinical evidence of herbal drugs as perpetrators of pharmacokinetic drug interactions. Planta Med 2012;78(13):1458-1477. PubMed
  18. Chun YT, Yip TT, Lau KL, and et al. A biochemical study on the hypotensive effect of berberine in rats. Gen Pharmac 1979;10:177-182. PubMed
  19. Hou Q, Han W, Fu X. Pharmacokinetic interaction between tacrolimus and berberine in a child with idiopathic nephrotic syndrome. Eur J Clin Pharmacol 2013;69(10):1861-2. PubMed
  20. Lan J, Zhao Y, Dong F, et al. Meta-analysis of the effect and safety of berberine in the treatment of type 2 diabetes mellitus, hyperlipemia and hypertension. J Ethnopharmacol. 2015;161:69-81. PubMed
  21. Lyu Y, Zhang Y, Yang M, et al. Pharmacokinetic interactions between metformin and berberine in rats: Role of oral administration sequences and microbiota. Life Sci. 2019;235:116818. PubMed

See these in context on the Corydalis Yanhusuo 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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