Cinnamon Extract Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Cinnamon Extract 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 Extract is a dietary supplement by OL Olympian Labs with 2 active ingredients. Its ingredients are commonly taken for blood sugar support, digestive upset, antioxidant support.Based on those ingredients, 599 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Cinnamon bark powder, Cinnamon extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Cinnamon Extract by OL Olympian Labs
Ask about any prescription or over-the-counter medication and we check it for interactions with Cinnamon Extract by OL Olympian Labs — 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 Extract by OL Olympian Labs
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
OL Olympian Labs Cinnamon Extract contains 2 active ingredients: cinnamon bark powder (from cassia cinnamon) and cinnamon extract (from Ceylon cinnamon). These are combined with inactive ingredients — a vegetarian capsule, rice flour, microcrystalline cellulose, silicon dioxide, and ascorbyl palmitate (a form of vitamin C used as a preservative).
Does it work?
Couldn't assess
The evidence for what this product does isn't well established. For cassia cinnamon, we don't have reliable data to rate its effectiveness for amenorrhea, angina, common cold, diabetes, diarrhea, or high cholesterol (dyslipidemia).
For Ceylon cinnamon, the research suggests it's possibly ineffective for weight loss and diabetes, and there's insufficient evidence for hay fever, chronic lung disease, and common cold.
How safe is it?
Well-documented data
Cassia cinnamon is generally safe in food amounts, but supplement doses — especially those high in coumarin (a natural compound in the spice) — may harm your liver over time with extended use. Ceylon cinnamon is generally well tolerated; the most common side effects are bloating, upset stomach (dyspepsia), and nausea.
Both ingredients carry a small risk of allergic skin reactions (dermatitis) or itching in sensitive people. Avoid high-dose supplement amounts during pregnancy; food amounts are likely fine.
Breastfeeding safety data for supplement doses is limited.
Meds to double-check
Moderate interaction found
Before you start, check with your pharmacist if you take blood sugar medications (antidiabetes drugs) or blood pressure medications (antihypertensive drugs) — both may be affected. If you're on medications that stress your liver (hepatotoxic drugs), flag that too.
The medication checker on this page can search your exact prescriptions.
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 may help some people, but the evidence is weak or absent. If you take diabetes medications, blood pressure medications, or liver-damaging drugs, talk to your pharmacist or doctor before starting — dose adjustments might be needed.
Food-amount cinnamon is different from supplement doses, so be clear about what you're taking.
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 Apr 25, 2018.
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 Extract, straight from the product label.
| Brand | OL Olympian Labs |
|---|---|
| Barcode (UPC) | 710013030306 |
| Net contents | 60 Vegetarian Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Apr 25, 2018 |
| DSLD ID | 175856 |
| Product type | Botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), No Allergies, Gluten Free, 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 Extract by OL Olympian Labs, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Cinnamon bark powder | 200 mg | -- |
| Cinnamon extract | 250 mg | -- |
Other ingredients: Vegetarian Capsule, Rice Flour, Microcrystalline Cellulose, Silicon Dioxide, Ascorbyl Palmitate
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.
General Statements
Olympian Labs, Inc. products are made with the highest quality ingredients and manufactured according to current Good Manufacturing Practices (cGMP).
We do not use ingredients that were produced using modern biotechnology
Supports normal blood sugar levels Supports metabolism Powerful antioxidant support
Made in USA
Precautions
Caution: If you are pregnant or nursing, have a medical condition, or are taking medication, consult your healthcare professional before using this or any other nutritional supplement.
Discontinue use if allergic reaction occurs.
Keep out of reach of children.
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.
General
REV 05-23-16
Formulation
Vegan
Gluten free Allergen free
No: Milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, or soybeans.
Non-GMO
FDA Statement of Identity
Dietary Supplement
Suggested/Recommended/Usage/Directions
Suggested Use: As a dietary supplement, take two (2) capsules, with a full glass of water, or as directed by a healthcare professional.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Cinnamon Extract by OL Olympian Labs 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 Extract by OL Olympian Labs
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size2 Capsule(s) Dosage formCapsule Servings per 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 bark powder
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 bark powder monograph & interactionsCinnamon extract
Interacts with258 drugs
Ceylon cinnamon is the so-called 'true' cinnamon, valued as a spice and used in traditional medicine for blood sugar, cholesterol, and digestion. Evid...
Cinnamon extract monograph & interactionsOther (inactive) ingredients: Vegetarian Capsule, Rice Flour, Microcrystalline Cellulose, Silicon Dioxide, Ascorbyl Palmitate. These complete the product’s ingredient list but are not active constituents.
Cinnamon Extract by OL Olympian Labs Drug Interactions
HelloPharmacist Interaction Report
OL Olympian Labs Cinnamon Extract contains two cinnamon ingredients, and they do interact with medications.
The most serious concern is with blood sugar medications (antidiabetes drugs) — both cinnamon bark powder and cinnamon extract may lower blood glucose levels and could have additive effects, potentially requiring dose adjustments to your diabetes medication.
Read the full breakdown — every affected drug type, severity by severity
Both ingredients also carry a Moderate-severity interaction with blood pressure medications (antihypertensive drugs); the cinnamon extract may add to their blood-pressure-lowering effect and increase the risk of low blood pressure (hypotension). Additionally, cinnamon bark powder may interact with liver-damaging drugs (hepatotoxic drugs) — theoretically causing additive harmful effects on the liver, especially at large doses or with extended use.
Altogether, these interactions span 600 individual medications. Use the medication checker below to look up your exact prescriptions before starting this product.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Cinnamon Extract?
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 Extract interact with 599 drugs. Click any drug to see the details.
2 of the 2 ingredients in Cinnamon Extract interact with drugs. Each result below shows which ingredient is responsible. Cinnamon bark powder Cinnamon extract
Benzhydrocodone, AcetaminophenApadaz
How Benzhydrocodone, Acetaminophen interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Benzhydrocodone, Acetaminophen interactionBenzthiazideExna
How Benzthiazide interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Benzthiazide interactionBetaxololBetoptic, Kerlone
How Betaxolol interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Betaxolol interactionBimekizumab-bkzxBimzelx
How Bimekizumab-bkzx interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Bimekizumab-bkzx interactionBinimetinibMektovi
How Binimetinib interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Binimetinib interactionBismuth Subsalicylate, Metronidazole, TetracyclineHelidac
How Bismuth Subsalicylate, Metronidazole, Tetracycline interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Bismuth Subsalicylate, Metronidazole, Tetracycline interactionBisoprololZebeta
How Bisoprolol interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Bisoprolol interactionBisoprolol, HydrochlorothiazideZiac
How Bisoprolol, Hydrochlorothiazide interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Bisoprolol, Hydrochlorothiazide interactionBortezomibVelcade
How Bortezomib interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Bortezomib interactionBosentanTracleer
How Bosentan interacts with Cinnamon Extract — through 2 ingredients. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Bosentan interactionCinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Bosentan interactionBosutinibBosulif
How Bosutinib interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Bosutinib interactionBumetanideBurinex
How Bumetanide interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Bumetanide interactionBumetanide (iv)Bumex
How Bumetanide (iv) interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Bumetanide (iv) interactionBumetanide (oral)Bumex
How Bumetanide (oral) interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Bumetanide (oral) interactionCanagliflozinInvokana
How Canagliflozin interacts with Cinnamon Extract — through 2 ingredients. Tap an ingredient for the detail:
Cinnamon ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon may have additive effects with antidiabetes drugs.
Read the full Cinnamon Extract + Canagliflozin interactionCinnamon Bark PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, cassia cinnamon may have additive effects with antidiabetes drugs.
Read the full Cinnamon Bark Powder + Canagliflozin interactionCanagliflozin, MetforminInvokamet
How Canagliflozin, Metformin interacts with Cinnamon Extract — through 2 ingredients. Tap an ingredient for the detail:
Cinnamon Bark PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, cassia cinnamon may have additive effects with antidiabetes drugs.
Read the full Cinnamon Bark Powder + Canagliflozin, Metformin interactionCinnamon ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon may have additive effects with antidiabetes drugs.
Read the full Cinnamon Extract + Canagliflozin, Metformin interactionCanagliflozin, Metformin HydrochlorideInvokamet XR
How Canagliflozin, Metformin Hydrochloride interacts with Cinnamon Extract — through 2 ingredients. Tap an ingredient for the detail:
Cinnamon ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon may have additive effects with antidiabetes drugs.
Read the full Cinnamon Extract + Canagliflozin, Metformin Hydrochloride interactionCinnamon Bark PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, cassia cinnamon may have additive effects with antidiabetes drugs.
Read the full Cinnamon Bark Powder + Canagliflozin, Metformin Hydrochloride interactionCandesartan CilexetilAmias, Atacand
How Candesartan Cilexetil interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Candesartan Cilexetil interactionCandesartan Cilexetil, HydrochlorothiazideAtacand HCT
How Candesartan Cilexetil, Hydrochlorothiazide interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Candesartan Cilexetil, Hydrochlorothiazide interactionCannabidiol (prescription Drug)Epidiolex
How Cannabidiol (prescription Drug) interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Cannabidiol (prescription Drug) interactionCapmatinib HydrochlorideTabrecta
How Capmatinib Hydrochloride interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Capmatinib Hydrochloride interactionCaptoprilAcepril, Capoten
How Captopril interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Captopril interactionCaptopril, HydrochlorothiazideAcezide, Capozide
How Captopril, Hydrochlorothiazide interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Captopril, Hydrochlorothiazide interactionCarbamazepineCarbatrol, Carnexiv, Equetro, Tegretol, Tegretol XR
How Carbamazepine interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Carbamazepine interactionCarbenicillin Indanyl SodiumGeocillin
How Carbenicillin Indanyl Sodium interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Carbenicillin Indanyl Sodium interactionCarbimazoleNeo-Mercazole
How Carbimazole interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Carbimazole interactionCarfilzomibKyprolis
How Carfilzomib interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon Bark PowderHepatotoxic Drugs Moderate
Interaction Summary
Theoretically, large doses of cassia cinnamon might cause additive effects when used with hepatotoxic drugs.
Read the full Cinnamon Bark Powder + Carfilzomib interactionCarteololCartrol, Ocupress
How Carteolol interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Carteolol interactionCarvedilolCoreg, Coreg CR
How Carvedilol interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Carvedilol interactionCeliprololCelicard
How Celiprolol interacts with Cinnamon Extract — through 1 ingredient. Tap an ingredient for the detail:
Cinnamon ExtractAntihypertensive Drugs Moderate
Interaction Summary
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Read the full Cinnamon Extract + Celiprolol interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Cinnamon Extract 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.
Cinnamon bark powder
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.
Cinnamon extract
Antidiabetes Drugs
Theoretically, Ceylon cinnamon may have additive effects with antidiabetes drugs.
Ceylon cinnamon may lower blood glucose levels. Dose adjustments might be necessary.
Antihypertensive Drugs
Theoretically, Ceylon cinnamon might have additive effects with antihypertensive drugs and increase the risk of hypotension.
Animal research shows that Ceylon cinnamon extract has vasorelaxant properties and reduces blood pressure in rat models of hypertension, possibly via inhibition of calcium influx through L-type voltage-sensitive channels.
Brand information
Manufacturer and brand details for Cinnamon Extract, from the product label.
OL Olympian Labs
See all OL Olympian Labs products- Name
- Olympian Labs, Inc.
- City
- Phoenix
- State
- AZ
- ZipCode
- 85027
- Phone Number
- 1.800.473.5883
- Web Address
- www.olympianlabs.com
Cinnamon Extract by OL Olympian Labs: Common Questions
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Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Cinnamon Extract 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 Extract’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Cassia Cinnamon
Interacts with 442 drugsCassia 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 monographCeylon Cinnamon
Interacts with 258 drugsCeylon cinnamon is the so-called 'true' cinnamon, valued as a spice and used in traditional medicine for blood sugar, cholesterol, and digestion. Evidence for most health benefits is limited...
Read the full Ceylon Cinnamon monograph →Sources & How We Checked
Cinnamon Extract'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 42 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
Ceylon Cinnamon 22 references
- Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Choi HK, Jung GW, Moon KH, et al. Clinical study of SS-Cream in patients with lifelong premature ejaculation. Urology 2000;55:257-61. PubMed
- 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
- Anderson RA, Broadhurst CL, Polansky MM, et al. Isolation and Characterization of Polyphenol Type-A Polymers from Cinnamon with Insulin-like Biological Activity. J Agric Food Chem 2004;52:65-70. PubMed
- Jarvill-Taylor KJ, Anderson RA, Graves DJ. A hydroxychalcone derived from cinnamon functions as a mimetic for insulin in 3T3-L1 adipocytes. J Am Coll Nutr 2001;20:327-36. PubMed
- Onderoglu S, Sozer S, Erbil KM, et al. The evaluation of long-term effcts of cinnamon bark and olive leaf on toxicity induced by streptozotocin administration to rats. J Pharm Pharmacol 1999;51:1305-12.
- Kanerva L, Estlander T, Jolanki R. Occupational allergic contact dermatitis from spices. Contact Dermatitis 1996;35:157-62. PubMed
- Ranasinghe P, Jayawardena R, Galappaththy P, et al. Response to Akilen et al. Efficacy and safety of 'true' cinnamon (Cinnamomum zeylanicum) as a pharmaceutical agent in diabetes: a systematic review and meta-analysis. Diabet Med 2013 Apr;30(4):506-7.
- Oliveira JdA, da Silva IC, Trindade LA, et al. Safety and tolerability of essential oil from Cinnamomum zeylanicum blume leaves with action on oral candidosis and its effect on the physical properties of the acylic resin. Evid Based Complement Alternat Me
- Ranasinghe P, Pigera S, Premakumara GA, et al. Medicinal properties of 'true' cinnamon (Cinnamomum zeylanicum): a systematic review. BMC Complement Altern Med 2013;13:275. PubMed
- Ranasinghe P, Galappaththy P. Health benefits of Ceylon cinnamon (Cinnamomum zeylanicum): a summary of the current evidence. Ceylon Med J 2016;61(1):1-5. PubMed
- Nyadjeu P, Dongmo A, Nguelefack TB, Kamanyi A. Antihypertensive and vasorelaxant effects of Cinnamomum zeylanicum stem bark aqueous extracts. J Complement Integr Med 2011;8.
- Wansi SL, Nyadjeu P, Ngamga D, et al. Blood pressure lowering effect of the ethanol extract from the stembark of Cinnamomum zeylanicum (lauraceae) in rats. Pharmacol online 2007;3:166-76.
- 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
- Brancheau D, Patel B, Zughaib M. Do cinnamon supplements cause acute hepatitis? Am J Case Rep 2015;16:250-4. PubMed
- Ranasinghe P, Jayawardena R, Pigera S, et al. Evaluation of pharmacodynamic properties and safety of Cinnamomum zeylanicum (Ceylon cinnamon) in healthy adults: a phase I clinical trial. BMC Complement Altern Med 2017;17(1):550. PubMed
- Zareie A, Sahebkar A, Khorvash F, Bagherniya M, Hasanzadeh A, Askari G. Effect of cinnamon on migraine attacks and inflammatory markers: A randomized double-blind placebo-controlled trial. Phytother Res 2020;34(11):2945-52. PubMed
- Zobeiri M, Parvizi F, Shahpiri Z, et al. Evaluation of the effectiveness of cinnamon oil soft capsule in patients with functional dyspepsia: A randomized double-blind placebo-controlled clinical trial. Evid Based Complement Alternat Med 2021;2021:6634115. PubMed
- Chase C, Doyle A, John SS, Laurent T, Griffith S. Post-operative haemorrhage secondary to cinnamon use. A case report. Int J Surg Case Rep 2022;95:107179. PubMed
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