Cinnamon 1000 mg Ingredients & Drug Interactions
by Solaray
What is this page for?
First and foremost: checking Cinnamon 1000 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
Cinnamon 1000 mg is a dietary supplement by Solaray with 1 active ingredient. Its ingredients are commonly taken for blood sugar support, digestive upset, antioxidant support.Based on those ingredients, 442 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Cinnamon. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Cinnamon 1000 mg by Solaray
Ask about any prescription or over-the-counter medication and we check it for interactions with Cinnamon 1000 mg by Solaray — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Cinnamon 1000 mg by Solaray
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.
What’s inside
Full disclosure
This product contains one active ingredient: cinnamon (specifically cassia cinnamon) at 1000 mg per capsule. The capsule itself is made from cellulose, an inactive ingredient.
Does it work?
Couldn't assess
The evidence we hold doesn't establish that cinnamon is effective for the conditions listed — amenorrhea, angina, common cold, diabetes, diarrhea, and dyslipidemia (high blood fats) all show insufficient reliable evidence to rate. If you're considering cinnamon for any of these, talk with your pharmacist or doctor about whether the research supports its use for your situation.
How safe is it?
Well-documented data
Cinnamon from food is generally well tolerated. At supplement doses — especially high doses or over long periods — there's concern about liver damage from the coumarin it contains.
In clinical trials, doses from 360 mg to 12 grams daily for up to three months didn't cause significant changes in liver enzyme tests, but the caution remains for extended use. A small number of people have reported a rash, and there's one case of contact dermatitis in someone with a cinnamon allergy.
One trial participant taking 1 gram daily had a low blood sugar episode (hypoglycemia) with a seizure, though it's unclear if cinnamon caused it. During pregnancy and breastfeeding, food amounts of cinnamon are likely fine, but avoid medicinal or high-dose supplement amounts — there isn't enough safety data to know they're okay.
Meds to double-check
Moderate interaction found
Before you take this cinnamon supplement, check your medications against our tool below if you take drugs that affect the liver (hepatotoxic drugs) or diabetes medications. These are the two categories with documented interactions.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This product is a straightforward 1000 mg cinnamon capsule. If you take diabetes medications or have liver disease, or if you're pregnant or breastfeeding, check with your pharmacist or doctor first.
The evidence for cinnamon's effectiveness on the conditions listed here isn't established in our data.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Aug 22, 2025.
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
General information
Key facts about Cinnamon 1000 mg, straight from the product label.
| Brand | Solaray |
|---|---|
| Barcode (UPC) | 076280116632 |
| Net contents | 60 VegCap(s) |
| Market status | On market |
| Date entered into DSLD | Aug 22, 2025 |
| DSLD ID | 338892 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Women (not pregnant or lactating), Dairy Free |
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 1000 mg by Solaray, sourced from the NIH Dietary Supplement Label Database.
Tap any ingredient to jump to its full detail below.
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.
Brand IP Statement(s)
Solaray Est. 1973 A Brighter Way 1973
General Statements
True Herbs
Since 1973, we've scoured the globe for the highest quality ingredients, connecting you with the most efficacious supplements that help you live brighter & embrace the moments that matter most.
100% PCR Bottles
Formula
Cinnamon 1000 mg per serving
Formulation
Herbal support
Non GMO Project Verified nongmoproject.org
Vegan
FDA Statement of Identity
Dietary Supplement
Seals/Symbols
Non GMO Project Verified nongmoproject.org Lab Verified Vegan
Precautions
Warning: Do not use if safety seal is broken or missing. Keep your licensed health care practitioner informed when using this product.
Keep out of reach of children.
Do not use if you are pregnant.
Suggested/Recommended/Usage/Directions
Directions: Use only as directed. Take 2 VegCaps daily with a meal or glass of water.
Storage
Store in a cool, dry place.
FDA Disclaimer Statement
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Cinnamon 1000 mg by Solaray label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Cinnamon 1000 mg by Solaray
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size2 VegCap(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.
Cinnamon
Interacts with442 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 evi...
Cinnamon monograph & interactionsOther (inactive) ingredients: Cellulose. These complete the product’s ingredient list but are not active constituents.
Cinnamon 1000 mg by Solaray Drug Interactions
HelloPharmacist Interaction Report
Solaray's Cinnamon 1000 mg contains cassia cinnamon, which has documented interactions with two medication categories.
The most serious concern is with drugs that stress the liver (hepatotoxic drugs). Large doses of cassia cinnamon might add to that liver stress; the cinnamon contains coumarin, a compound that can damage the liver in animal studies, and very high coumarin doses (50–7000 mg daily) have caused liver damage in humans that reversed once the coumarin stopped.
Read the full breakdown — every affected drug type, severity by severity
The second interaction is with diabetes medications (antidiabetes drugs). Cassia cinnamon may lower blood sugar, and taking it alongside diabetes drugs could add to that effect — your doctor might need to adjust your diabetes medication dose if you start this supplement.
Altogether, these interactions span 425 individual medications. Before you start this product, use the medication checker below to run through any prescriptions you take, especially if you have liver disease or take diabetes drugs.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Cinnamon 1000 mg?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Cinnamon 1000 mg interact with 442 drugs. Click any drug to see the details.
1 of the 1 ingredient in Cinnamon 1000 mg interact with drugs. Each result below shows which ingredient is responsible. Cinnamon
6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + 6-mercaptopurine interactionAbacavir Sulfate, Dolutegravir, LamivudineTriumeq
How Abacavir Sulfate, Dolutegravir, Lamivudine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Abacavir Sulfate, Dolutegravir, Lamivudine interactionAbacavir, LamivudineEpzicom
How Abacavir, Lamivudine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Abacavir, Lamivudine interactionAbiraterone
How Abiraterone interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Abiraterone interactionAbiraterone AcetateYonsa, Zytiga
How Abiraterone Acetate interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Abiraterone Acetate interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonAntidiabetes Drugs, Hepatotoxic Drugs Moderate
Interaction Summary
Theoretically, cassia cinnamon may have additive effects with antidiabetes drugs.
Read the full Cinnamon + Acarbose interactionAcebutololRhotral, Sectral
How Acebutolol interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acebutolol interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Caffeine, CodeineGesic C15, Gesic C30, Gesic C8, Lenoltec 1, Lenoltec 2, Lenoltec 3 +1 more
How Acetaminophen, Caffeine, Codeine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with Cinnamon 1000 mg — through 1 ingredient. Tap an ingredient for the detail:
CinnamonHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon + Acetaminophen, Chlorpheniramine, Phenylephrine interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Cinnamon 1000 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
Cinnamon
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.
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.
Brand information
Manufacturer and brand details for Cinnamon 1000 mg, from the product label.
Solaray
See all Solaray products- Name
- Solaray
- City
- Salt Lake City
- State
- UT
- ZipCode
- 84101
- Phone Number
- 800-538-5888
- Web Address
- www.solaray.com
Cinnamon 1000 mg by Solaray: Common Questions
Does Cinnamon 1000 mg by Solaray interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is cinnamon safe to take if I have diabetes?
Can this hurt my liver?
Is this safe during pregnancy?
Does cinnamon work for diabetes?
What's the one active ingredient in this?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Cinnamon 1000 mg is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Cinnamon 1000 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Cinnamon 1000 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 20 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
- 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
- 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
- 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
- Drake TE, Maibach HI. Allergic contact dermatitis and stomatitis caused by a cinnamic aldehyde-flavored toothpaste. Arch Dermatol 1976;112:202-3.
- 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
- 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
- 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
- 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
- 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
- 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.
- 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
- 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
- Admani S, Hill H, Jacob SE. Cinnamon Sugar Scrub Dermatitis: "Natural" Is Not Always Best. Pediatr Dermatol. 2017;34(1):e42-e43. PubMed
- 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
- Vandersall A, Katta R. Eyelid dermatitis as a manifestation of systemic contact dermatitis to cinnamon. Dermatitis. 2015 Jul-Aug;26(4):189. PubMed
- 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
- Brancheau D, Patel B, Zughaib M. Do cinnamon supplements cause acute hepatitis? Am J Case Rep 2015;16:250-4. PubMed
- 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
- 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
- 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
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC