Major interaction on record — check this product against your medications before combining. Check your meds →
Dietary supplement

Berberine + 1200 mg Ingredients & Drug Interactions

by NutriFlair

Capsule Category: Other Combinations
Most serious interaction: Major
The interaction bottom line Most serious interaction: Major

Berberine + 1200 mg is a dietary supplement by NutriFlair with 2 active ingredients. Its ingredients are commonly taken for blood sugar control, high cholesterol, heart and metabolic health.Based on those ingredients, 1,321 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Berberine HCl, Ceylon Cinnamon. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Berberine + 1200 mg by NutriFlair

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

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 2 of its 2 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains 2 active ingredients. Berberine HCl is an alkaloid compound extracted from plants like barberry and goldenseal, traditionally used to support metabolic health.

Ceylon cinnamon (also called cassia cinnamon in the research) is a spice-derived ingredient. The capsule also contains methylcellulose, an inactive binder.

Does it work?

Moderate 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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: Blood sugar control and heart health support.
  • We looked for evidence on: Diabetes, Impaired glucose tolerance (prediabetes), Dyslipidemia, Hyperlipidemia, Hypertension, Metabolic syndrome — and 4 related terms.
  • The strongest evidence on file: Berberine is rated "Possibly Effective" for Diabetes (Natural Medicines).
  • Also on file: Berberine is rated "Possibly Effective" for Hyperlipidemia, Hypertension.
  • Also on file: Cassia Cinnamon is rated "Insufficient Reliable Evidence To Rate" for Diabetes, Dyslipidemia, Hypertension, Obesity.

Berberine has possibly effective evidence for blood sugar control (diabetes), high cholesterol (hyperlipidemia), high blood pressure (hypertension), polycystic ovary syndrome (PCOS), and for helping clear a stomach bacteria called Helicobacter pylori. Ceylon cinnamon, on the other hand, doesn't have reliable evidence behind it for most claimed uses — the data shows insufficient evidence for diabetes, high cholesterol, amenorrhea, angina, common cold, and diarrhea.

So you're really relying on berberine for the documented benefit here.

The evidence, ingredient by ingredient Berberine Cassia Cinnamon

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 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Berberine is generally well tolerated when taken by mouth, but digestive upset is common — you may experience abdominal pain, bloating, constipation, diarrhea, gas, nausea, or vomiting. Some people also report dizziness, drowsiness, fatigue, or headache.

Berberine is not safe in pregnancy or while breastfeeding; it can cross the placenta and pass into breast milk, and has been linked to harm in newborns. Ceylon cinnamon at food amounts is likely safe, but at medicinal supplement doses — especially long-term — there's concern about liver damage from its coumarin content, a compound that can be toxic at high levels.

Rare cases of rash and contact dermatitis have been reported with cinnamon supplements.

Side effects, ingredient by ingredient Berberine Cassia Cinnamon

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?
  • 2 of the 2 matched ingredients can interact with medications — Cassia Cinnamon, Berberine.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications.
  • For scale: 1,322 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Check your medications against this product if you take cyclosporine (which can reach dangerous levels), any blood pressure drugs, diabetes medications, blood thinners or aspirin, sleep aids or anxiety drugs, or any other regular prescription — berberine slows how your liver breaks down many different drugs. If you take drugs that are hard on your liver, let your pharmacist know you're considering this too.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Major medication interactions have been identified, and safety information is well characterized.

This product is mainly driven by berberine's evidence for metabolic support. If you take any prescription medications — especially blood pressure drugs, diabetes medications, immunosuppressants, blood thinners, or sedatives — you need to check with a pharmacist before starting.

Avoid it entirely if you're pregnant or breastfeeding. It's worth a conversation with your pharmacist to see if it fits your health picture.

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

Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Dec 14, 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 Berberine + 1200 mg, straight from the product label.

Brand NutriFlair
Barcode (UPC) X002N00WCH
Net contents 120 Vegetable Capsule(s)
Market status On market
Date entered into DSLD Dec 14, 2023
DSLD ID 299691
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 Berberine + 1200 mg by NutriFlair, 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:
2 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
60
UPC/BARCODE
X002N00WCH
IngredientAmount% DV
Berberine HCl1200 mg--
Ceylon Cinnamon100 NP--

Other ingredients: Methylcellulose

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

Premium Berberine + Ceylon Cinnamon 1200 mg per serving Enhanced with pure ceylon cinnamon

Formulation

Natural, Non-GMO, Vegan, Gluten free

Natural, Non-GMO, Vegan, Gluten free

Natural, Non-GMO, Vegan, Gluten free

Vegan

Made in USA with global ingredients.

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

Made with Non-GMO Ingredients Made In USA Lab Tested Purity & Potency GMP Good Manufacturing Practice

General Statements

Questions about our product? We are here to help! Email us: [email protected] Visit: nutriflair.com

Follow us: Instagram Facebook Twitter @nutriflair #nutriflair

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, take two (2) capsules once daily, preferably with a meal and water, or as directed by a healthcare professional.

Precautions

Caution: Do not exceed recommended dose.

Pregnant or nursing mothers, children under the age of 18, individuals with a known medical condition, and individuals taking prescription medications, should consult a healthcare professional before using this or any dietary supplement.

Pregnant or nursing mothers, children under the age of 18, individuals with a known medical condition, and individuals taking prescription medications, should consult a healthcare professional before using this or any dietary supplement.

Keep out of reach of children.

Do not use if safety seal is damaged or missing.

Storage

Storage: Keep tightly closed, in a dry place, and do not expose to excessive heat.

Store in a cool, dry place.

FDA Disclaimer Statement

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

See for yourself

Berberine + 1200 mg by NutriFlair label

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

What’s inside

The Ingredients in Berberine + 1200 mg by NutriFlair

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Capsule(s) Dosage formCapsule Servings per container60 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.

Berberine HCl

Interacts with
1,160 drugs
1200 mg per serving Form: Berberis aristata

Berberine is a yellow plant compound that has shown promise for lowering blood sugar and cholesterol in some studies, but the quality of research vari...

Berberine HCl monograph & interactions

Ceylon Cinnamon

Interacts with
442 drugs
100 NP per serving

Cassia cinnamon is the common, inexpensive cinnamon used in cooking, and it is also taken as a supplement, most often for blood sugar support. The evi...

Ceylon Cinnamon monograph & interactions

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

Interaction report

Berberine + 1200 mg by NutriFlair Drug Interactions

Want to check YOUR meds against Berberine + 1200 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
1,321Drugs
1 Major 1,320 Moderate

Ingredients driving the most interactions

Each ingredient & the kinds of drugs it affects

For each ingredient in Berberine + 1200 mg 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.

Berberine HCl15 drug types · 1,160 drugs

Cyclosporine (Neoral, Sandimmune)

Berberine can increase serum levels of cyclosporine.
Berberine can reduce metabolism and increase serum levels of cyclosporine. Berberine might inhibit cytochrome P450 3A4 (CYP3A4), which metabolizes cyclosporine.

Likelihood Probable Evidence A
Anticoagulant/Antiplatelet Drugs

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

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, berberine may increase the risk of hypoglycemia when taken with antidiabetes drugs.
Clinical research shows that berberine may lower blood glucose levels. Theoretically, berberine might have additive effects with antidiabetes drugs and increase the risk of hypoglycemia.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, berberine might have additive effects with antihypertensive drugs.
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.

Likelihood Possible Evidence D
Cns Depressants

Theoretically, berberine might increase the sedative effects of CNS depressants.
Animal research suggests that berberine may have sedative effects. Theoretically, use of berberine along with CNS depressants might produce additive therapeutic and adverse effects.

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

Theoretically, berberine might increase serum levels of drugs metabolized by CYP2C9.
Preliminary clinical research shows that berberine can inhibit CYP2C9. Theoretically, taking berberine with drugs metabolized by CYP2C9 might increase drug levels and increase the risk of adverse effects.

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

Theoretically, berberine might increase serum levels of drugs metabolized by CYP2D6.
In vitro research and preliminary clinical evidence show that berberine can inhibit CYP2D6. Theoretically, use of berberine with drugs metabolized by CYP2D6 might increase drug levels and increase the risk of adverse effects.

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

Theoretically, berberine might increase serum levels of drugs metabolized by CYP3A4.
In vitro research and preliminary clinical research show that berberine moderately inhibits CYP3A4. Theoretically, use of berberine with drugs metabolized by CYP3A4 might increase drug levels and increase the risk of adverse effects.

Likelihood Possible Evidence A
Dextromethorphan (Robitussin Dm, Others)

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

Likelihood Possible Evidence B
Losartan (Cozaar)

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

Likelihood Possible Evidence B
Metformin (Glucophage)

Theoretically, berberine might increase the therapeutic and adverse effects of metformin.
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.

Likelihood Possible Evidence D
Midazolam (Versed)

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

Likelihood Possible Evidence B
Pentobarbital (Nembutal)

Berberine might increase the sedative effect of pentobarbital.
Evidence from animal research shows that berberine can prolong pentobarbital-induced sleeping time. Theoretically, combining berberine and pentobarbital might increase the sedative effects of pentobarbital.

Likelihood Possible Evidence D
Tacrolimus (Prograf)

Berberine has been associated with increased blood levels of tacrolimus.
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.

Likelihood Possible Evidence D
Acetazolamide

Laboratory studies and initial clinical findings suggest that berberine has the potential to increase acetazolamide concentrations in the body. More research is needed to confirm this interaction.

Likelihood Possible Evidence C

Ceylon Cinnamon2 drug types · 442 drugs

Antidiabetes Drugs

Theoretically, cassia cinnamon may have additive effects with antidiabetes drugs.
Cassia cinnamon may lower blood glucose levels, and have additive effects in patients treated with antidiabetic agents. Dose adjustments to diabetes medications might be necessary.

Likelihood Possible Evidence B
Hepatotoxic Drugs

Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
There is some concern that ingesting large amounts of cassia cinnamon for an extended duration might cause hepatotoxicity in some people. Cassia cinnamon contains coumarin, which can cause hepatotoxicity in animal models. In humans, very high doses of coumarin from 50-7000 mg/day can result in hepatotoxicity that resolves when coumarin use is discontinued. Lower amounts might also cause liver problems in sensitive people, such as those with liver disease or those taking potentially hepatotoxic agents.

Likelihood Possible Evidence D
The maker

Brand information

Manufacturer and brand details for Berberine + 1200 mg, from the product label.

NutriFlair

See all NutriFlair products
Name
Nutriflair
Street Address
4742 42nd Ave SW Suite 12
City
Seattle
State
WA
ZipCode
98116
Phone Number
1-800-432-2031
Web Address
nutriflair.com
Pharmacist Counseling Corner

Berberine + 1200 mg by NutriFlair: Common Questions

Does Berberine + 1200 mg by NutriFlair interact with any medications?
Yes. Based on its ingredients, Berberine + 1200 mg has a known interaction with 1,321 medications, including 1 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Berberine + 1200 mg contains 2 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.
What's berberine actually used for?
The research shows it may help with high blood sugar (diabetes), high cholesterol, high blood pressure, polycystic ovary syndrome, and clearing a stomach bacteria. It's not a cure, but the evidence suggests it can support these areas. Ceylon cinnamon in this product doesn't have strong evidence behind it for the conditions it's traditionally claimed to help.
Can I take this if I'm pregnant or nursing?
No — berberine should be avoided during pregnancy and while breastfeeding. It crosses the placenta and gets into breast milk, and has been linked to harm in newborns. Talk with your doctor about safer alternatives if you're in either situation.
What side effects should I watch for?
Most common are digestive: stomach pain, bloating, constipation, diarrhea, gas, nausea, or vomiting. Some people feel dizzy, drowsy, tired, or get headaches. Start with a low dose to see how your stomach handles it, and take it with food if possible.
Is the cinnamon in this product helping with anything?
Not according to the evidence we have on file. The research shows insufficient evidence for cinnamon's use in diabetes, high cholesterol, common cold, and other conditions. You're getting the documented benefits from berberine, not from the cinnamon.
Can this hurt my liver?
Berberine itself doesn't show liver toxicity at typical doses, but the cinnamon in this product contains coumarin, a compound that can strain your liver at very high supplement doses over long periods — though the amount here is probably not a major concern. If you already have liver problems, mention this product to your doctor.
Will this lower my blood sugar too much if I'm diabetic?
Berberine can lower blood glucose, so if you're already on diabetes medication, the combination could push your blood sugar too low. Your doctor may need to adjust your medication dose. Check with them before starting, and monitor your blood sugar closely at first.

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

Not sure if Berberine + 1200 mg 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.

Berberine + 1200 mg label
Sources

Sources & How We Checked

Berberine + 1200 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 61 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.

Berberine 41 references
  1. Chan E. Displacement of bilirubin from albumin by berberine. Biol Neonate 1993;63:201-8. PubMed
  2. Janbaz KH, Gilani AH. Studies on preventive and curative effects of berberine on chemical-induced hepatotoxicity in rodents. Fitoterapia 2000;71:25-33.. PubMed
  3. 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
  4. 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
  5. Huang XS, Yang GF, Pan YC. Effect of berberin hydrochloride on blood concentration of cyclosporine A in cardiac transplanted patients. Zhongguo Zhong Xi Yi Jie He Za Zhi 2008;28:702-4.
  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. Marin-Neto, J. A., Maciel, B. C., Secches, A. L., and Gallo, Junior L. Cardiovascular effects of berberine in patients with severe congestive heart failure. Clin.Cardiol. 1988;11(4):253-260. PubMed
  9. Choudhry, V. P., Sabir, M., and Bhide, V. N. Berberine in giardiasis. Indian Pediatr. 1972;9(3):143-146.
  10. 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
  11. 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.
  12. 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
  13. Sharda DC. Berberine in the treatment of diarrhoea of infancy and childhood. J Indian M A 1970;54(1):22-24.
  14. Sabir M and Bhide NK. Study of some pharmacological actions of berberine. Ind J Physiol & Pharmac 1971;15(3):111-132.
  15. Tripathi YB and Shukla SD. Berberis artistata inhibits PAF induced aggregation of rabbit platelets. Phytotherapy Research 1996;10:628-630.
  16. Seery TM and Bieter RN. A contribution to the pharmacology of berberine. J Pharmacol Exp Ther 1940;69:64-67. DOI
  17. Xin, H. W., Wu, X. C., Li, Q., Yu, A. R., Zhong, M. Y., and Liu, Y. Y. The effects of berberine on the pharmacokinetics of cyclosporin A in healthy volunteers. Methods Find.Exp.Clin Pharmacol 2006;28(1):25-29.
  18. Zhang, Y., Li, X., Zou, D., Liu, W., Yang, J., Zhu, N., Huo, L., Wang, M., Hong, J., Wu, P., Ren, G., and Ning, G. Treatment of type 2 diabetes and dyslipidemia with the natural plant alkaloid berberine. J Clin Endocrinol.Metab 2008;93(7):2559-2565. PubMed
  19. Yin, J., Xing, H., and Ye, J. Efficacy of berberine in patients with type 2 diabetes mellitus. Metabolism 2008;57(5):712-717. PubMed
  20. 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
  21. 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
  22. 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
  23. Marazzi, G., Cacciotti, L., Pelliccia, F., Iaia, L., Volterrani, M., Caminiti, G., Sposato, B., Massaro, R., Grieco, F., and Rosano, G. Long-term effects of nutraceuticals (berberine, red yeast rice, policosanol) in elderly hypercholesterolemic patients. PubMed
  24. Meng, S., Wang, L. S., Huang, Z. Q., Zhou, Q., Sun, Y. G., Cao, J. T., Li, Y. G., and Wang, C. Q. Berberine ameliorates inflammation in patients with acute coronary syndrome following percutaneous coronary intervention. Clin Exp.Pharmacol Physiol 2012;39 PubMed
  25. 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
  26. 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
  27. Saksena HC, Tomar VN, and Soangra MR. Efficacy of a new salt of Berberine Uni-Berberine in oriental sore. Current Medical Practice 1970;14:247-252.
  28. Abascal K, Yarnell E. Recent clinical advances with berberine. Altern Complement Ther 2010;16(5):281-7. DOI
  29. Dong H, Zhao Y, Zhao L, Lu F. The effects of berberine on blood lipids: a systemic review and meta-analysis of randomized controlled trials. Planta Med 2013;79(6):437-46. PubMed
  30. 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
  31. 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
  32. Li G, Zhao M, Qiu F, Sun Y, Zhao L. Pharmacokinetic interactions and tolerability of berberine chloride with simvastatin and fenofibrate: an open-label, randomized, parallel study in healthy Chinese subjects. Drug Des Devel Ther. 2018;13:129-139. PubMed
  33. Ju J, Li J, Lin Q, Xu H. Efficacy and safety of berberine for dyslipidaemias: A systematic review and meta-analysis of randomized clinical trials. Phytomedicine. 2018;50:25-34. PubMed
  34. Xu L, Zhang Y, Xue X, et al. A phase I trial of berberine in Chinese with ulcerative colitis. Cancer Prev Res (Phila). 2020;13(1):117-26. PubMed
  35. 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
  36. Chen YX, Gao QY, Zou TH, et al. Berberine versus placebo for the prevention of recurrence of colorectal adenoma: a multicentre, double-blinded, randomised controlled study. Lancet Gastroenterol Hepatol. 2020;5(3):267-75. PubMed
  37. Zhang J, Wang Y, Jiang H, et al. Preventive effect of berberine on postoperative atrial fibrillation. Circ Arrhythm Electrophysiol 2022;15(10):e011160. PubMed
  38. Blais JE, Huang X, Zhao JV. Overall and Sex-Specific Effect of Berberine for the Treatment of Dyslipidemia in Adults: A Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Trials. Drugs 2023;83(5):403-427. PubMed
  39. Panigrahi A, Mohanty S. Efficacy and safety of HIMABERB® Berberine on glycemic control in patients with prediabetes: double-blind, placebo-controlled, and randomized pilot trial. BMC Endocr Disord 2023;23(1):190. PubMed
  40. Nie Q, Li M, Huang C, et al. The clinical efficacy and safety of berberine in the treatment of non-alcoholic fatty liver disease: a meta-analysis and systematic review. J Transl Med 2024;22(1):225. PubMed
  41. Koperska A, Moszak M, Seraszek-Jaros A, Bogdanski P, Szulinska M. Does berberine impact anthropometric, hepatic, and metabolic parameters in patients with metabolic dysfunction-associated fatty liver disease? Randomized, double-blind placebo-controlled tr

See these in context on the Berberine monograph →

Cassia Cinnamon 20 references
  1. 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
  2. Khan A, Safdar M, Ali Khan M, et al. Cinnamon improves glucose and lipids of people with type 2 diabetes. Diabetes Care 2003;26:3215-8. PubMed
  3. De Benito V, Alzaga R. Occupational allergic contact dermatitis from cassia (Chinese cinnamon) as a flavouring agent in coffee. Contact Dermatitis 1999;40:165. PubMed
  4. Drake TE, Maibach HI. Allergic contact dermatitis and stomatitis caused by a cinnamic aldehyde-flavored toothpaste. Arch Dermatol 1976;112:202-3.
  5. Press release. Cinnamon capsules to reduce blood sugar are medicinal products! Efficacy has not been scientifically proven - some products contain high levels of coumarin. Federal Institute of Risk Assessment (BfM), Germany, November 11, 2006. Available a
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  13. Admani S, Hill H, Jacob SE. Cinnamon Sugar Scrub Dermatitis: "Natural" Is Not Always Best. Pediatr Dermatol. 2017;34(1):e42-e43. PubMed
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  16. Wickenberg J, Lindstedt S, Nilsson J, Hlebowicz J. Cassia cinnamon does not change the insulin sensitivity or the liver enzymes in subjects with impaired glucose tolerance. Nutr J 2014 Sep 24;13:96. PubMed
  17. Brancheau D, Patel B, Zughaib M. Do cinnamon supplements cause acute hepatitis? Am J Case Rep 2015;16:250-4. PubMed
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  19. Bernaola J, Valverde-Monge M, Otal-Buesa M, Cullen D, Heras-Mendaza F. Cinnamon allergic contact cheilitis. Contact Dermatitis 2023;88(5):418-419. PubMed
  20. Patel K, Howard M, Tate B. Cheilitis caused by allergic contact dermatitis to cinnamon in chai tea: A case report. Contact Dermatitis 2023;88(3):239-240. PubMed

See these in context on the Cassia Cinnamon monograph →

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

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