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Dietary supplement

Cinnamon Gymnema Mulberry Complex Ingredients & Drug Interactions

by Swanson

Cinnamon Gymnema Mulberry Complex label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

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

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

The interaction bottom line Most serious interaction: Moderate

Cinnamon Gymnema Mulberry Complex is a dietary supplement by Swanson with 3 active ingredients. Its ingredients are commonly taken for blood sugar support, digestive upset, antioxidant support.Based on those ingredients, 1,007 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Gymnema Sylvestre, Cinnamon bark extract, Mulberry. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Cinnamon Gymnema Mulberry Complex by Swanson

Ask about any prescription or over-the-counter medication and we check it for interactions with Cinnamon Gymnema Mulberry Complex by Swanson — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Cinnamon Gymnema Mulberry Complex by Swanson

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 12, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 3 of its 3 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains 3 active ingredients: cinnamon bark extract, gymnema sylvestre, and black mulberry. Cinnamon bark extract is derived from cassia cinnamon; gymnema is a plant traditionally used in Ayurvedic medicine; and mulberry comes from the black mulberry plant.

These are combined in a capsule with inactive ingredients—gelatin, rice flour, magnesium stearate, and silica—which serve as binders and flow agents to hold the capsule together and help it dissolve.

Does it work?

Not established
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use.

Why this rating?
  • The label markets this product for: supports cardiovascular health and blood sugar metabolism.
  • We looked for evidence on: Diabetes, Dyslipidemia, Hypertension, Impaired glucose tolerance (prediabetes), Metabolic syndrome, Obesity — and 2 related terms.
  • The closest evidence on file: Black Mulberry is rated "Insufficient Reliable Evidence To Rate" for Diabetes (Natural Medicines).
  • Also on file: Gymnema is rated "Insufficient Reliable Evidence To Rate" for Diabetes, Obesity, Impaired glucose tolerance (prediabetes), Metabolic syndrome.
  • Also on file: Cassia Cinnamon is rated "Insufficient Reliable Evidence To Rate" for Diabetes, Dyslipidemia.

The evidence for this product's effectiveness isn't established in the data we hold. Cinnamon bark extract has insufficient reliable evidence to rate for diabetes, dyslipidemia (high cholesterol), common cold, diarrhea, angina, and amenorrhea.

Gymnema similarly shows insufficient evidence for diabetes, metabolic syndrome, prediabetes, and obesity. Black mulberry has insufficient evidence for diabetes, menopausal symptoms, and oral mucositis.

While some individual studies suggest these ingredients may support blood sugar control, the scientific consensus doesn't yet support definitive claims about their effectiveness for any condition.

The evidence, ingredient by ingredient Cassia Cinnamon Gymnema Black Mulberry

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 3 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Cinnamon bark extract is likely safe in food amounts during pregnancy and breastfeeding, but supplement doses—especially high ones—are not well studied and should be avoided without medical approval. Cinnamon can cause a rash in some people, and very high doses over extended periods may harm the liver due to its coumarin content.

Gymnema is generally well tolerated short-term but should be avoided during pregnancy and breastfeeding due to insufficient safety data; rare cases of drug-induced hepatitis have been reported. Black mulberry fruit is safe as food, but concentrated supplement doses are less studied, and topical contact with mulberry leaves can cause dermatitis in sensitive people.

Side effects, ingredient by ingredient Cassia Cinnamon Gymnema Black Mulberry

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 3 of the 3 matched ingredients can interact with medications — Black Mulberry, Gymnema, Cassia Cinnamon.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 1,008 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 these medication types before you start: antidiabetes drugs (risk of low blood sugar with all three ingredients); drugs processed by your liver through CYP1A2, CYP2C9, and CYP3A4 enzymes (gymnema may raise or lower their levels); hepatotoxic drugs that stress the liver (cinnamon may add to that stress); and midazolam or other sedatives (mulberry may slow their breakdown). If you take phenacetin or tolbutamide, those have specific documented interactions with gymnema.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

If you take diabetes medications, have liver disease, or use sedatives like midazolam, talk to your pharmacist before adding this product. The biggest concern is accidental low blood sugar if you're on diabetes drugs.

Use the medication checker below to verify your exact medications—this product potentially affects over 1,000 different drugs through enzyme interactions and blood sugar effects.

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

Assessment coverage: 3 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Feb 22, 2024.

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 Cinnamon Gymnema Mulberry Complex, straight from the product label.

Brand Swanson
Barcode (UPC) 087614117423
Net contents 120 Capsule(s)
Market status On market
Date entered into DSLD Feb 22, 2024
DSLD ID 308498
Product type Botanical
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 Cinnamon Gymnema Mulberry Complex by Swanson, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
120
UPC/BARCODE
087614117423
IngredientAmount% DV
Cinnamon bark extract25 mg--
Gymnema Sylvestre250 mg--
Mulberry250 mg--

Other ingredients: Gelatin, Rice Flour, Magnesium Stearate, Silica

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.
General Statements

Swanson.com or call 1-800-437-4148

Science-backed quality since 1969

Formulation

Supports cardiovascular health and blood sugar metabolism Provides comprehensive metabolic support

Blood sugar support

3-in-1 Formula

Suggested/Recommended/Usage/Directions

Suggested use: As a dietary supplement, take one capsule one to three times per day 30 minutes before meals.

Precautions

Warning: For adults only. Keep out of reach of children.

Do not take this product if you are pregnant or nursing. Consult your physician before using this or any product if you are taking medication or have a medical condition, especially if you are hypoglycemic, diabetic or taking medications that affect blood sugar levels.

Do not use if seal is broken.

Storage

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.

FDA Statement of Identity

Herbal Supplement

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

See for yourself

Cinnamon Gymnema Mulberry Complex by Swanson label

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

Cinnamon Gymnema Mulberry Complex 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 Cinnamon Gymnema Mulberry Complex by Swanson

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container120 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 bark extract

Interacts with
442 drugs
25 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 bark extract monograph & interactions

Gymnema Sylvestre

Interacts with
851 drugs
250 mg per serving

Gymnema is an Ayurvedic herb best known for possibly helping lower blood sugar and reducing the taste of sweetness on the tongue. Some early human stu...

Gymnema Sylvestre monograph & interactions

Mulberry

Interacts with
87 drugs
250 mg per serving Form: Morus alba

Black mulberry is a nutritious fruit rich in antioxidants and vitamins, and it is generally safe to enjoy as a food. Some early research on its leaf a...

Mulberry monograph & interactions

Other (inactive) ingredients: Gelatin, Rice Flour, Magnesium Stearate, Silica. These complete the product’s ingredient list but are not active constituents.

Interaction report

Cinnamon Gymnema Mulberry Complex by Swanson Drug Interactions

Want to check YOUR meds against Cinnamon Gymnema Mulberry Complex?

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
1,007Drugs
590 Moderate 417 Minor

Ingredients driving the most interactions

Gymnema Sylvestre 851
Cinnamon bark extract 442
Mulberry 87

Individual Drug Interactions

The ingredients in Cinnamon Gymnema Mulberry Complex interact with 1,007 drugs. Click any drug to see the details.

3 of the 3 ingredients in Cinnamon Gymnema Mulberry Complex interact with drugs. Each result below shows which ingredient is responsible. Gymnema Sylvestre Cinnamon bark extract Mulberry

Each ingredient & the kinds of drugs it affects

For each ingredient in Cinnamon Gymnema Mulberry Complex 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.

Gymnema Sylvestre6 drug types · 851 drugs

Antidiabetes Drugs

Theoretically, taking gymnema with antidiabetes drugs might increase the risk of hypoglycemia.
Gymnema reduces blood glucose levels in some human and animal research. In human studies, it has been shown to enhance the blood glucose lowering effects of hypoglycemic drugs. However, other research in adults with prediabetes or metabolic syndrome suggests that gymnema does not reduce fasting levels of blood glucose. Until more is known, monitor blood glucose levels closely.

Likelihood Probable Evidence B
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, gymnema might increase levels of drugs metabolized by CYP1A2.
Animal and in vitro research shows that gymnema can inhibit the CYP1A2 enzyme. In one animal study, oral administration of gymnema for 7 days increased the plasma concentrations of phenacetin, a CYP1A2 substrate, by about 1.4-fold and reduced the clearance of phenacetin by about 29%.

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

Theoretically, gymnema might increase or decrease levels of drugs metabolized by CYP2C9.
Animal research shows that gymnema can induce the CYP2C9 enzyme. In one animal study, gymnema caused a 2.4-fold increase in the clearance of tolbutamide, a CYP2C9 substrate, in rats. In vitro research also shows that gymnema can inhibit CYP2C9.

Likelihood Possible Evidence D
Phenacetin

Theoretically, taking gymnema with phenacetin might increase the levels of phenacetin.
Animal research shows that gymnema, administered orally for 7 days, decreases the clearance of phenacetin in a dose-dependent manner by about 21% to 29% and increases plasma levels about 1.3- to 1.4-fold when compared to control.

Likelihood Possible Evidence D
Tolbutamide (Orinase)

Theoretically, taking gymnema with tolbutamide might the decrease levels of tolbutamide.
Animal research shows that gymnema, administered orally for 7 days, increases the clearance of tolbutamide by 2.4-fold when compared to control.

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

Theoretically, gymnema might increase levels of drugs metabolized by CYP3A4.
One in vitro study using rat liver microsomes shows that gymnema can modestly inhibit the CYP3A4 enzyme. However, other in vitro research using human liver microsomes shows that gymnema does not affect CYP3A4 activity. Animal research also shows that gymnema does not alter the function of CYP3A4. In one study in rats, oral administration of gymnema for 7 days did not alter the clearance of amlodipine, a CYP3A4 substrate.

Likelihood Unlikely Evidence D
Gymnema Sylvestre full monograph & interactions

Cinnamon 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 bark extract full monograph & interactions

Mulberry2 drug types · 87 drugs

Antidiabetes Drugs

Theoretically, black mulberry leaf might increase the risk of hypoglycemia when taken with antidiabetes drugs.
One small clinical study shows that black mulberry leaf extract has hypoglycemic effects. This is supported by in vitro research which also suggests that constituents in black mulberry twigs and leaves might have hypoglycemic effects.

Likelihood Possible Evidence D
Midazolam (Versed)

Theoretically, black mulberry might inhibit the metabolism of midazolam.
In vitro research shows that black mulberry juice can inhibit midazolam 1'-hydroxylation, a reaction that is catalyzed by cytochrome P450 3A4. This effect has not been reported in humans.

Likelihood Possible Evidence D
Mulberry full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Cinnamon Gymnema Mulberry Complex, from the product label.

Swanson

See all Swanson products
Name
Swanson Health Products
City
Fargo
State
ND
ZipCode
58104
Phone Number
1-800-437-4148
Web Address
swanson.com
Pharmacist Counseling Corner

Cinnamon Gymnema Mulberry Complex by Swanson: Common Questions

Does Cinnamon Gymnema Mulberry Complex by Swanson interact with any medications?
Yes. Based on its ingredients, Cinnamon Gymnema Mulberry Complex has a known interaction with 1,007 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Cinnamon Gymnema Mulberry Complex contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is this safe to take while I'm pregnant or breastfeeding?
Cinnamon in food amounts is likely safe during pregnancy and breastfeeding, but supplement doses should be avoided without medical approval. Gymnema and mulberry don't have enough safety data—avoid concentrated supplement doses of those during pregnancy and breastfeeding. Talk to your doctor or pharmacist before taking this product if you're pregnant or nursing.
Can this help me control my blood sugar or lose weight?
The evidence isn't established in the data we hold. All three ingredients show insufficient reliable evidence for diabetes and weight-related conditions like obesity and prediabetes. While some individual studies suggest they may help, the scientific consensus doesn't yet support clear claims about their effectiveness for these uses.
What side effects might I notice?
Cinnamon can cause a rash, and in rare cases, contact dermatitis from direct skin exposure. Gymnema is generally well tolerated short-term but has caused drug-induced hepatitis in rare case reports. Mulberry extracts seem well tolerated, though topical contact with mulberry leaves can cause dermatitis in sensitive people. If you develop unusual symptoms, stop and contact your pharmacist or doctor.
I'm taking a diabetes medication—can I use this product?
Do not take this product without checking with your pharmacist first. All three ingredients may lower blood sugar, and combining them with diabetes medications increases the risk of excessively low blood sugar. Your doctor may need to adjust your diabetes medication dose.
Does this contain any fillers or other ingredients I should know about?
Besides the three active ingredients, the capsule contains gelatin, rice flour, magnesium stearate, and silica—these are inactive ingredients that help the capsule form and dissolve. If you have allergies to any of these, let your pharmacist know.
How much coumarin is in the cinnamon extract, and could it harm my liver?
The product facts don't state the coumarin content. Cassia cinnamon contains coumarin, and very high doses over extended periods have caused liver damage in some cases. If you have liver disease or take other drugs that stress the liver, mention this product to your pharmacist before using it.

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.

Cinnamon Gymnema Mulberry Complex label
Go deeper

The Full Monographs Behind Cinnamon Gymnema Mulberry Complex’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

Gymnema

Interacts with 851 drugs

Gymnema is an Ayurvedic herb best known for possibly helping lower blood sugar and reducing the taste of sweetness on the tongue. Some early human studies are encouraging for blood sugar sup...

Read the full Gymnema monograph → Herb & supplement monograph

Black Mulberry

Interacts with 87 drugs

Black mulberry is a nutritious fruit rich in antioxidants and vitamins, and it is generally safe to enjoy as a food. Some early research on its leaf and fruit extracts hints at benefits for...

Read the full Black Mulberry monograph →
Sources

Sources & How We Checked

Cinnamon Gymnema Mulberry Complex'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 37 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 →

Gymnema 12 references
  1. Shanmugasundaram ER, Rajeswari G, Baskaran K, et al. Use of Gymnema sylvestre leaf extract in the control of blood glucose in insulin-dependent diabetes mellitus. J Ethnopharmacol 1990;30:281-94. PubMed
  2. Baskaran K, Kizar Ahamath B, Radha Shanmugasundaram K, Shanmugasundaram ER. Antidiabetic effect of leaf extract from Gymnema sylvestre in non-insulin-dependent diabetes mellitus patients. J Ethnopharmacol 1990;30:295-300.
  3. Kamble B, Gupta A, Moothedath I, Khatal L, Janrao S, Jadhav A, et al. Effects of Gymnema sylvestre extract on the pharmacokinetics and pharmacodynamics of glimepiride in streptozotocin induced diabetic rats. Chem Biol Interact. 2016;245:30-8. PubMed
  4. Tiwari P, Mishra BN, Sangwan NS. Phytochemical and pharmacological properties of Gymnema sylvestre: an important medicinal plant. Biomed Res Int. 2014; 2014:830285.
  5. Fabio GD, Romanucci V, De Marco A, Zarrelli A. Triterpenoids from Gymnema sylvestre and their pharmacological activities. Molecules. 2014;19(8):10956-81. PubMed
  6. Shiyovich A, Sztarkier I, Nesher L. Toxic hepatitis induced by Gymnema sylvestre, a natural remedy for type 2 diabetes mellitus. Am J Med Sci. 2010;340(6):514-7. PubMed
  7. Zuniga LY, Gonzalez-Ortiz M, Martinez-Abundis E. Effect of gymnema sylvestre administration on metabolic syndrome, insulin sensitivity, and insulin secretion. J Med Food. 2017 Aug;20(8):750-54.
  8. Rammohan B, Samit K, Chinmoy D, et al. Human cytochrome P450 enzyme modulation by gymnema sylvestre: a predictive safety evaluation by LC-MS/MS. Pharmacogn Mag. 2016 Jul;12(Suppl 4):S389-S394.
  9. Vaghela M, Sahu N, Kharkar P, Pandita N. In vivo pharmacokinetic interaction by ethanolic extract of gymnema sylvestre with CYP2C9 (tolbutamide), CYP3A4 (amlodipine) and CYP1A2 (phenacetin) in rats. Chem Biol Interact. 2017 Dec 25;278:141-151. PubMed
  10. Vaghela M, Iyer K, Pandita N. In vitro inhibitory effect of gymnema sylvestre extracts and total gymnemic acids fraction on select cytochrome P450 activities in rat liver microsomes. Eur J Drug Metab Pharmacokinet. 2017 Oct 10. PubMed
  11. Gaytán Martínez LA, Sánchez-Ruiz LA, Zuñiga LY, González-Ortiz M, Martínez-Abundis E. Effect of Gymnema sylvestre administration on glycemic control, insulin secretion, and insulin sensitivity in patients with impaired glucose tolerance. J Med Food. 2021;
  12. Philips CA, Theruvath AH, Ravindran R. Toxic hepatitis-associated aplastic anaemia after dual homeopathic remedies and Gymnema sylvestre use. BMJ Case Rep 2022;15(3):e247867. PubMed

See these in context on the Gymnema monograph →

Black Mulberry 5 references
  1. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  2. Kim, H., Yoon, Y. J., Shon, J. H., Cha, I. J., Shin, J. G., and Liu, K. H. Inhibitory effects of fruit juices on CYP3A activity. Drug Metab Dispos. 2006;34(4):521-523. PubMed
  3. Xu LJ, Yu MH, Huang CY, et al. Isoprenylated flavonoids from Morus nigra and their PPAR ? agonistic activities. Fitoterapia 2018;127:109-14. PubMed
  4. Momeni H, Salehi A, Absalan A, Akbari M. Hydro-alcoholic extract of Morus nigra reduces fasting blood glucose and HbA1c% in diabetic patients, probably via competitive and allosteric interaction with alpha-glucosidase enzyme; a clinical trial and in silic
  5. Navarro-Triviño FJ, Jadczak P, Llamas-Molina JM, Ruiz-Villaverde R. Lichenoid contact dermatitis caused by Morus nigra L. Contact Dermatitis 2021;84(6):484-486.

See these in context on the Black Mulberry monograph →

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

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

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