Drug & supplement interaction

Berberine + Tocainide

Tocainide brand name: Tonocard.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated July 2026 · Pair last verified Sep 13, 2026

The bottom line No known interaction

We found no known interaction between Berberine and Tocainide in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

Berberine and Tocainide

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Tocainide and Berberine in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Berberine safety at a glance

Berberine overall Use caution Generally tolerated short-term but can cause digestive side effects and interacts with many medicines.

Pregnancy Likely Unsafe When used orally. Berberine is thought to cross the placenta and may cause harm to the fetus. Kernicterus has developed in newborn infants exposed to berberine.... Read the full pregnancy detail

Breastfeeding Likely Unsafe When used orally. Berberine can be transferred to the infant through breast milk. Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Tocainide and Berberine? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

How we checked

Why No Interaction Is Listed for Tocainide

Interactions in our licensed database are recorded against drug classes, not just single drug names. Tocainide is filed under a single classification — oral drugs. Berberine has documented interactions with 15 drug classes — the most serious being cyclosporine (neoral, sandimmune) (major), anticoagulant/antiplatelet drugs (moderate) and antidiabetes drugs (moderate) — and none of Tocainide’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Berberine Does Interact With Other Medications

Berberine has 1 major, 1,159 moderate known drug interactions in our database — Tocainide isn’t one of them. If you take anything else, check it against the full list below.

Major 1 Moderate 1,159 No known interaction 1,670 (incl. Tocainide)

Taking anything else?

Check Another of Your Medications Against Berberine

Covers the 2,830 medications we’ve checked against Berberine. Pick one to open its full report.

What to actually watch for

What Berberine Itself Has Been Linked To

This is not an interaction — nothing below involves Tocainide. It is the side-effect record for Berberine on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Berberine, this list is the first place to look. 4 entries are worth acting on rather than waiting out — marked below.

Muscle weakness Worth acting on Additional detail
“Reports of mild muscle pain and muscle weakness have been reported following the use of a combination product containing berberine, policosanol, red yeast rice, folic acid, coenzyme Q10, and astaxanthin. It is unclear if these effects are due to berberine or other constituents.”

Berberine · Natural Medicines adverse-effect record, reported in pain.
1 source cited

34283. 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
Low blood sugar Worth acting on Additional detail
“Orally, berberine may cause hypoglycemia.”

Berberine · Natural Medicines adverse-effect record, reported in hypoglycemia.
1 source cited

111363. 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
Heart failure Worth acting on Additional detail
“In four of 12 patients with refractory congestive heart failure, intravenous infusion of berberine at a rate of 0.2 mg/kg per minute caused ventricular tachycardia consistent with torsades de pointes.”

Berberine · Natural Medicines adverse-effect record, reported in congestive heart failure (chf).
1 source cited

33642. 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
An irregular heartbeat Worth acting on Additional detail

“Orally, berberine is generally well tolerated.

Most Common Adverse Effects:

Orally: Abdominal pain and distension, constipation, diarrhea, flatulence, nausea, vomiting.

Intravenously: Facial flushing, painful swelling at the injection site.

Serious Adverse Events (Rare):

Intravenously: Ventricular tachycardia consistent with torsades de pointes.”

Berberine · Natural Medicines adverse-effect record, reported in constipation.
Heartburn / A change in taste Additional detail
“Orally, berberine may cause diarrhea, constipation, flatulence, nausea, vomiting, abdominal pain, abdominal distention, gastroesophageal reflux, and bitter taste.”

Berberine · Natural Medicines adverse-effect record, reported in constipation.
6 sources cited

33648. Choudhry, V. P., Sabir, M., and Bhide, V. N. Berberine in giardiasis. Indian Pediatr. 1972;9(3):143-146.

33689. Sharda DC. Berberine in the treatment of diarrhoea of infancy and childhood. J Indian M A 1970;54(1):22-24.

34245. 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

34247. Yin, J., Xing, H., and Ye, J. Efficacy of berberine in patients with type 2 diabetes mellitus. Metabolism 2008;57(5):712-717. PubMed

34285. 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

91953. 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
Flushing Additional detail
“When administered intravenously, berberine can cause painful swelling at the injection site or facial flushing. In three of 12 people injected subcutaneously with berberine, permanent hyperpigmentation at the injection site occurred.

Orally, berberine may cause rash, but this event appears to be rare.”

Berberine · Natural Medicines adverse-effect record, reported in niacin-induced flushing.
4 sources cited

34330. 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.

33698. Seery TM and Bieter RN. A contribution to the pharmacology of berberine. J Pharmacol Exp Ther 1940;69:64-67. DOI

34285. 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

110106. Zhang J, Wang Y, Jiang H, et al. Preventive effect of berberine on postoperative atrial fibrillation. Circ Arrhythm Electrophysiol 2022;15(10):e011160. PubMed
Bloating or gas Additional detail

Recorded for Berberine in the same Natural Medicines adverse-effect record shown under An irregular heartbeat above.
A fast or pounding heartbeat Additional detail

Recorded for Berberine in the same Natural Medicines adverse-effect record shown under An irregular heartbeat above.
Drowsiness Additional detail
“Orally, berberine may cause dizziness, drowsiness, fatigue, and headache.”

Berberine · Natural Medicines adverse-effect record, reported in cluster headache.
3 sources cited

33648. Choudhry, V. P., Sabir, M., and Bhide, V. N. Berberine in giardiasis. Indian Pediatr. 1972;9(3):143-146.

99921. 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

113462. 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

Showing the 10 most notable of 21 recorded effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

Everything above comes from the Natural Medicines adverse-effect record for Berberine — expand a row for the licensed statement it rests on. We haven’t matched Tocainide to its FDA label in our system yet, so we can’t compare its own side-effect list here — the leaflet that comes with your prescription is the authoritative list for Tocainide.

Special populations

Berberine in Pregnancy & Breastfeeding

Pregnancy Likely Unsafe

When used orally. Berberine is thought to cross the placenta and may cause harm to the fetus. Kernicterus has developed in newborn infants exposed to berberine. Also, berberine may stimulate uterine contractions.

Lactation Likely Unsafe

When used orally. Berberine can be transferred to the infant through breast milk.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

From our Q&A

Questions About Berberine or Tocainide

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Berberine or Tocainide, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Tocainide

This page covers Berberine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Tocainide page lists 17 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 9 minor.

From our pharmacist’s overview on the Tocainide page

“Tocainide (Tonocard) controls dangerous heart rhythm disturbances, so its blood level needs to stay where your cardiologist set it, and every one of the 17 ingredients on this page can move that level by changing how much drug your gut absorbs. Approach these combinations with real caution.”

Reviewed by 2 · Jul 18, 2026

Open the Tocainide interaction page

One more smart check

Taking Berberine as Part of a Dietary Supplement Product? Check It for Interactions

We hold 908 real supplement products containing Berberine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Berberine. Even though Berberine itself has no known interaction with Tocainide, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Berberine and Tocainide Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Berberine

Top 10%

#115 of 1,452 supplements looked up here in the last 7 days

29 days ago today

Medication Tocainide

Top 5%

#75 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?

Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Berberine reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Berberine and Tocainide records this page draws on were last updated July 11, 2026.
What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.

Data structure & sourcing designed and verified by Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Berberine

What is Berberine?

Blood sugar control
High cholesterol
Heart and metabolic health
Digestive upset
Antimicrobial support
Weight management

Berberine is a yellow plant compound that has shown promise for lowering blood sugar and cholesterol in some studies, but the quality of research varies and it is not a replacement for prescribed medicine. It can cause stomach upset and should be avoided during pregnancy and breastfeeding. Always check with your pharmacist or doctor before starting it, especially if you take other medications.

Roots, bark, and stems of berberine-containing plants (such as goldenseal, barberry, goldthread, and Oregon grape) · Capsules, tablets, powders, and tinctures

An interaction check asks whether these two react with each other — it does not ask whether Berberine is a good idea for someone in your situation. Here is what our Berberine record says about it on its own.

Berberine: dosing

There is no official, standardized dose of berberine, and the right amount can depend on the product and the reason it is being used. They can help you decide whether berberine is appropriate for you and review it against your other medicines and health conditions.

From our Berberine monograph — the full record covers uses, side effects and every documented interaction.

Read the full Berberine monograph & all interactions

Keep checking

Other Drugs & Berberine

Browse every other medication we’ve checked against Berberine — both the ones with a known interaction and the ones without. Select any drug for the full detail.

1Major

1,159Moderate

0Minor

1,669No known interaction

1 Major 1,159 Moderate 1,669 No interaction

Major

1 interaction

Cyclosporine ›

Moderate

1,159 interactions

Showing 60 of 1,159 moderate interactions — see all 1,159 on the Berberine page.

No interaction 1,669 drugs checked — show the list

We also checked Berberine against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 1,669 medications checked with no known interaction — see the full Berberine list.

See the full Berberine interactions page

See every supplement checked against Tocainide, ranked by severity

Evidence & sources

Berberine References

The 41 references that drive our Berberine monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

Chan E. Displacement of bilirubin from albumin by berberine. Biol Neonate 1993;63:201-8. PubMed
Janbaz KH, Gilani AH. Studies on preventive and curative effects of berberine on chemical-induced hepatotoxicity in rodents. Fitoterapia 2000;71:25-33.. PubMed
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
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
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.
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
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
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
Choudhry, V. P., Sabir, M., and Bhide, V. N. Berberine in giardiasis. Indian Pediatr. 1972;9(3):143-146.
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
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.
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
Sharda DC. Berberine in the treatment of diarrhoea of infancy and childhood. J Indian M A 1970;54(1):22-24.
Sabir M and Bhide NK. Study of some pharmacological actions of berberine. Ind J Physiol & Pharmac 1971;15(3):111-132.
Tripathi YB and Shukla SD. Berberis artistata inhibits PAF induced aggregation of rabbit platelets. Phytotherapy Research 1996;10:628-630.
Seery TM and Bieter RN. A contribution to the pharmacology of berberine. J Pharmacol Exp Ther 1940;69:64-67. DOI
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.
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
Yin, J., Xing, H., and Ye, J. Efficacy of berberine in patients with type 2 diabetes mellitus. Metabolism 2008;57(5):712-717. PubMed
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
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
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
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
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
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
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
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.
Abascal K, Yarnell E. Recent clinical advances with berberine. Altern Complement Ther 2010;16(5):281-7. DOI
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
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
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
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
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
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
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
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
Zhang J, Wang Y, Jiang H, et al. Preventive effect of berberine on postoperative atrial fibrillation. Circ Arrhythm Electrophysiol 2022;15(10):e011160. PubMed
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
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
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
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

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Berberine and Tocainide Together: Common Questions

Is it safe to take Berberine with Tocainide?

We do not list a known interaction between Berberine and Tocainide. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.

How was the Berberine and Tocainide combination checked?

Interactions in our licensed database are recorded against drug classes. Tocainide is filed under 1 classification, and Berberine has documented interactions with 15 drug classes — none of Tocainide's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.

Does Berberine interact with any other medications?

Yes. Berberine has 1,160 documented drug interactions in our database — Tocainide is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

Does Tocainide interact with any supplements?

Yes. Tocainide has documented interactions with 17 supplements in our database — Berberine is not one of them. The Tocainide interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Berberine monograph Uses, safety profile, and every drug interaction in one place Tocainide supplement interactions Every supplement checked against Tocainide, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 41 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Tocainide and Berberine?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.