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

Genius Blood Sugar Ingredients & Drug Interactions

by The Genius Brand

Genius Blood Sugar label
See full label image
Capsule Category: Other Combinations
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Genius Blood Sugar against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Major

Genius Blood Sugar is a dietary supplement by The Genius Brand with 2 active ingredients. Its ingredients are commonly taken for blood sugar support, digestive upset, antioxidant support.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 Dihydroberberine, Cinnamon (Cinnamomum cassia) bark 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 Genius Blood Sugar by The Genius Brand

Ask about any prescription or over-the-counter medication and we check it for interactions with Genius Blood Sugar by The Genius Brand — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Genius Blood Sugar by The Genius Brand

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 30, 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 2 of its 2 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Genius Blood Sugar contains two active ingredients. Cinnamon bark extract (from Cinnamomum cassia) is the source of the cinnamon component.

Dihydroberberine — a converted form of the compound berberine — is the other active. Both are aimed at supporting blood sugar metabolism.

The capsule also contains inactive ingredients: hypromellose (a capsule material), corn maltodextrin, organic rice, and ascorbyl palmitate (a form of vitamin C used as a preservative).

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: support maintaining healthy glucose level.
  • We looked for evidence on: Diabetes, Impaired glucose tolerance (prediabetes), Metabolic syndrome, Dyslipidemia, Hyperlipidemia, Obesity — and 3 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.
  • Also on file: Cassia Cinnamon is rated "Insufficient Reliable Evidence To Rate" for Diabetes, Dyslipidemia, Obesity, Impaired glucose tolerance (prediabetes).

For cinnamon bark extract, the evidence in our data is insufficient to rate its effectiveness for any condition, including diabetes. For dihydroberberine, the research suggests it may be effective for high cholesterol, high blood pressure, diabetes, PCOS, and Helicobacter pylori infection.

That said, 'possibly effective' means the evidence is promising but not yet conclusive — it's not the same as proven.

The evidence, ingredient by ingredient Cassia Cinnamon Berberine

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.

Cinnamon at food amounts is generally well tolerated. At supplement doses, especially over long periods, there's concern about liver harm from coumarin (a natural compound in cassia cinnamon).

Food amounts are considered likely safe during pregnancy and breastfeeding, but high-dose supplements are best avoided in pregnancy due to limited safety data. Dihydroberberine (berberine) is generally well tolerated short-term but commonly causes digestive side effects — abdominal pain, constipation, diarrhea, nausea, and vomiting.

It may also cause dizziness, drowsiness, and headache. Berberine is likely unsafe in pregnancy (it may cross the placenta and has been linked to newborn harm) and while breastfeeding (it passes into breast milk).

A small number of trial participants reported a rash with cinnamon, and in rare cases, contact dermatitis has occurred in people with cinnamon allergies.

Side effects, ingredient by ingredient Cassia Cinnamon Berberine

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.

Before you take this product, double-check with your doctor or pharmacist if you're on cyclosporine (an immunosuppressant) — berberine can dangerously raise its levels. Also flag any use of blood thinners or antiplatelet drugs, blood pressure medications, diabetes medications, sleep aids or sedatives, or any medication metabolized through the liver — especially those cleared by CYP3A4, CYP2D6, or CYP2C9 pathways.

Berberine can slow how your body breaks these down and increase their side effects.

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 might appeal to someone looking for herbal support for blood sugar and cholesterol, especially given dihydroberberine's possibly effective rating for those uses. However, it carries significant drug interactions — most critically with cyclosporine and blood thinners — and is unsafe in pregnancy and breastfeeding.

If you take any prescription medications, or if you're pregnant or nursing, talk it over with your doctor or pharmacist before adding this to your routine.

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 Nov 19, 2021.

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 Genius Blood Sugar, straight from the product label.

Brand The Genius Brand
Barcode (UPC) 810037680454
Net contents 30 Veggie Capsule(s)
Market status On market
Date entered into DSLD Nov 19, 2021
DSLD ID 263175
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating)
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 Genius Blood Sugar by The Genius Brand, 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 Veggie Capsule(s)
Maximum serving Sizes:
1 Veggie Capsule(s)
Servings per container
30
UPC/BARCODE
810037680454
IngredientAmount% DV
Cinnamon (Cinnamomum cassia) bark extract250 mg--
Dihydroberberine170 mg--

Other ingredients: Hypromellose, Corn Maltodextrin, organic Rice, Ascorbyl Palmitate

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

Genius Blood Sugar offers support maintaining a healthy glucose level. Formulated with GlucoVantage, originating from Berberine, which in one study has shown to be 5 times more effective in measuring glucose tolerance.

Bioactive form of Berberine Beyond Berberine

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, take one (1) capsule with meal.

Precautions

Warnings: Not to be used during pregnancy or lactating.

Keep away from children.

If you have a medical condition or are taking medications consult your doctor before using.

Use only as directed on label.

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.

Formulation

Support Healthy Glucose Levels

FDA Statement of Identity

Dietary Supplement

General Statements

For those who follow a Keto lifestyle, studies also suggested that GlucoVantage enhanced blood ketone response when combined with BHB.

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

See for yourself

Genius Blood Sugar by The Genius Brand label

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

Genius Blood Sugar 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 Genius Blood Sugar by The Genius Brand

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

Serving size1 Veggie Capsule(s) Dosage formCapsule Servings per container30 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.

Cinnamon (Cinnamomum cassia) bark extract

Interacts with
442 drugs
250 mg 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...

Cinnamon (Cinnamomum cassia) bark extract monograph & interactions

Dihydroberberine

Interacts with
1,160 drugs
170 mg per serving

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...

Dihydroberberine monograph & interactions

Other (inactive) ingredients: Hypromellose, Corn Maltodextrin, Organic Rice, Ascorbyl Palmitate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Genius Blood Sugar by The Genius Brand Drug Interactions

Want to check YOUR meds against Genius Blood Sugar?

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

Dihydroberberine 1,160
Cinnamon (Cinnamomum cassia) bark extract 442

Individual Drug Interactions

The ingredients in Genius Blood Sugar interact with 1,321 drugs. Click any drug to see the details.

2 of the 2 ingredients in Genius Blood Sugar interact with drugs. Each result below shows which ingredient is responsible. Dihydroberberine Cinnamon (Cinnamomum cassia) bark extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Genius Blood Sugar 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.

Dihydroberberine15 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
Dihydroberberine full monograph & interactions

Cinnamon (Cinnamomum cassia) bark extract2 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
Cinnamon (Cinnamomum cassia) bark extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Genius Blood Sugar, from the product label.

The Genius Brand

See all The Genius Brand products
Name
The Genius Brand
Street Address
2204 McFarland 400 Blvd
City
Alpharetta
State
GA
ZipCode
30004
Phone Number
1-888-498-9544
Web Address
TheGeniusBrand.com
Pharmacist Counseling Corner

Genius Blood Sugar by The Genius Brand: Common Questions

Does Genius Blood Sugar by The Genius Brand interact with any medications?
Yes. Based on its ingredients, Genius Blood Sugar 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?
Genius Blood Sugar 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.
Can I take this if I'm pregnant or breastfeeding?
No. Dihydroberberine (berberine) is likely unsafe in pregnancy — it may cross the placenta and has been linked to harm in newborns — and in breastfeeding because it passes into breast milk. Cinnamon at food amounts is considered likely safe during pregnancy, but the supplement doses in this product are best avoided. Talk to your doctor or pharmacist before taking it.
What side effects might I notice?
Dihydroberberine commonly causes digestive upset — abdominal pain, constipation, diarrhea, gas, nausea, or vomiting. It may also cause dizziness, drowsiness, fatigue, or headache. A very small number of people have reported a rash with cinnamon. If you have a known allergy to cinnamon or cinnamic alcohol, be especially cautious.
Does the cinnamon in this actually work for blood sugar?
The evidence we hold is insufficient to rate cinnamon's effectiveness for diabetes or blood sugar control. The dihydroberberine in this product is rated possibly effective for diabetes based on research, but 'possibly' means the evidence is still being established, not that it's proven.
What is dihydroberberine, and how is it different from berberine?
Dihydroberberine is a converted form of berberine, an alkaloid compound from plants like goldenseal and barberry. The conversion is meant to improve absorption in your body. The interactions and safety concerns are the same as for berberine because they work the same way.
Is this safe to take long-term?
Dihydroberberine is generally tolerated short-term but we don't have long-term safety data in our facts. Cinnamon at very high doses over long periods raises concern about liver stress from coumarin. Talk to your doctor or pharmacist about how long you plan to use it.
What are the inactive ingredients, and are there any fillers?
The inactive ingredients are hypromellose (the capsule material), corn maltodextrin, organic rice, and ascorbyl palmitate (a preservative). These are standard excipients used in supplements; the product does contain fillers in that sense, though the amounts are typical.

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.

Genius Blood Sugar label
Go deeper

The Full Monographs Behind Genius Blood Sugar’s Ingredients

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

Herb & supplement monograph

Cassia Cinnamon

Interacts with 442 drugs

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 evidence for its health benefits is mixed a...

Read the full Cassia Cinnamon monograph → Herb & supplement monograph

Berberine

Interacts with 1,160 drugs

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 presc...

Read the full Berberine monograph →
Sources

Sources & How We Checked

Genius Blood Sugar'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.

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
  6. Felter SP, Vassallo JD, Carlton BD, Daston GP. A safety assessment of coumarin taking into account species-specificity of toxicokinetics. Food Chem Toxicol 2006;44:462-75. PubMed
  7. Crawford P. Effectiveness of cinnamon for lowering hemoglobin A1C in patients with type 2 diabetes: a randomized, controlled trial. J Am Board Fam Med 2009;22:507-12. PubMed
  8. Akilen, R., Tsiami, A., Devendra, D., and Robinson, N. Glycated haemoglobin and blood pressure-lowering effect of cinnamon in multi-ethnic Type 2 diabetic patients in the UK: a randomized, placebo-controlled, double-blind clinical trial. Diabet.Med. 2010; PubMed
  9. Lu T, Sheng H Wu J Cheng Y Zhu J Chen Y. Cinnamon extract improves fasting blood glucose and glycosylated hemoglobin level in Chinese patients with type 2 diabetes. Nutr Res. 2012;32(6):408-412. PubMed
  10. Choi, J., Lee, K. T., Ka, H., Jung, W. T., Jung, H. J., and Park, H. J. Constituents of the essential oil of the Cinnamomum cassia stem bark and the biological properties. Arch Pharm Res 2001;24(5):418-423.
  11. Altschuler JA, Casella SJ, MacKenzie TA, Curtis KM. The effect of cinnamon on A1C among adolescents with type 1 diabetes. Diabetes Care 2007;30(4):813-6. PubMed
  12. Stoecker BR, Zhan Z, Luo R, et al. Cinnamon extract lowers blood glucose in hyperglycemic subjects. FASEB J. 2010;22:722.1 (Abstract only). DOI
  13. Admani S, Hill H, Jacob SE. Cinnamon Sugar Scrub Dermatitis: "Natural" Is Not Always Best. Pediatr Dermatol. 2017;34(1):e42-e43. PubMed
  14. Isaac-Renton M, Li MK, Parsons LM. Cinnamon spice and everything not nice: many features of intraoral allergy to cinnamic aldehyde. Dermatitis. 2015;26(3):116-21. PubMed
  15. Vandersall A, Katta R. Eyelid dermatitis as a manifestation of systemic contact dermatitis to cinnamon. Dermatitis. 2015 Jul-Aug;26(4):189. PubMed
  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
  18. Shekarchizadeh-Esfahani P, Heydarpour F, Izadi F, Jalili C. The effect of cinnamon supplementation on liver enzymes in adults: A systematic review and meta-analysis of randomized controlled trials. Complement Ther Med 2021;58:102699. PubMed
  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 →

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
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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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