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Dietary supplement

Organic "True" Cinnamon (Ceylon) Extract Ingredients & Drug Interactions

by Oregon's Wild Harvest

Organic "True" Cinnamon (Ceylon) Extract label
See full label image
Liquid 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 Organic "True" Cinnamon (Ceylon) 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

The interaction bottom line Most serious interaction: Moderate

Organic "True" Cinnamon (Ceylon) Extract is a dietary supplement by Oregon's Wild Harvest with 1 active ingredient. Its ingredients are commonly taken for blood sugar support, high cholesterol, indigestion and gas.Based on those ingredients, 258 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are True Cinnamon. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Organic "True" Cinnamon (Ceylon) Extract by Oregon's Wild Harvest

Ask about any prescription or over-the-counter medication and we check it for interactions with Organic "True" Cinnamon (Ceylon) Extract by Oregon's Wild Harvest — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Organic "True" Cinnamon (Ceylon) Extract by Oregon's Wild Harvest

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 Sep 3, 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 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: True Cinnamon (Ceylon Cinnamon), a liquid extract. Ceylon cinnamon is the bark of Cinnamomum verum, a species native to Sri Lanka, and it's been used traditionally to support blood sugar and metabolic health.

The liquid also includes alcohol and distilled water as inactive ingredients.

Does it work?

Couldn't assess
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 assessable

This is a single-ingredient Ceylon Cinnamon product and its label doesn't state a use — see Ceylon Cinnamon's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence we hold shows Ceylon cinnamon is possibly ineffective for obesity and diabetes — the two conditions most often cited for its use. For allergic rhinitis (hay fever), COPD, and common cold, there isn't enough reliable evidence to rate whether it works.

If you're considering this product for blood sugar or weight management, the data doesn't support those uses, so it's worth discussing alternatives with your doctor or pharmacist.

The evidence, ingredient by ingredient Ceylon Cinnamon

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 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

When taken orally at food amounts, Ceylon cinnamon is generally well tolerated, and serious side effects are rare. At supplement-strength doses — like those in this extract — it's less studied.

The most common side effects are bloating, indigestion, and nausea. In rare cases, allergic reactions including skin rashes and itching have been reported.

Pregnancy safety data rates Ceylon cinnamon as likely safe, though there is one conflicting safety note marking it possibly unsafe — talk with your doctor about use in pregnancy. During breastfeeding, food amounts are considered likely safe, but supplement doses haven't been studied enough to know either way; if you're breastfeeding and want to use this, check with your doctor or pharmacist first.

Side effects, ingredient by ingredient Ceylon Cinnamon

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?
  • 1 of the 1 matched ingredient can interact with medications — Ceylon Cinnamon.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 258 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking this product, check with your doctor or pharmacist if you take antihypertensive drugs (blood pressure medications) or antidiabetes drugs (diabetes medications). Both interactions are Moderate and could require dose adjustments to your prescription.

Altogether, these interactions span 258 individual medications.

Check your own medication Run your meds through the checker above

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.

If you take blood pressure or diabetes medication, this product isn't for you without a conversation with your doctor — the interactions are real and could affect how well your medications work. For others, it's generally tolerated at typical doses, though the evidence for its intended uses (blood sugar and weight) is weak.

Talk it over with your own pharmacist or doctor before starting, especially if you're pregnant, breastfeeding, or on any regular medications.

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 Mar 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 Organic "True" Cinnamon (Ceylon) Extract, straight from the product label.

Brand Oregon's Wild Harvest
Barcode (UPC) 706195001982
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Mar 22, 2024
DSLD ID 307125
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating), Organic, Gluten Free, Dairy Free
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 Organic "True" Cinnamon (Ceylon) Extract by Oregon's Wild Harvest, 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 mL
Maximum serving Sizes:
1 mL
Servings per container
30
UPC/BARCODE
706195001982
IngredientAmount% DV
True Cinnamon333 mg--

Other ingredients: Alcohol, Water, Distilled

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

Organic to our roots Certified organic since 1994, our regenerative practices heal the planet while providing potent herbs today and for future generations.

Formulation

Free from: Gluten, dairy and soy allergens.

Non GMO GF (Gluten Free)

Certified organic by Oregon Tilth

Precautions

Caution: Keep out of reach of children.

Do not take if pregnant or nursing. If taking medication consult a healthcare professional before use.

Discontinue use if unusual symptoms occur.

Do not exceed recommended dose.

Brand IP Statement(s)

Oregon's Wild Harvest Herbal Supplement since 1994

FDA Statement of Identity

Herbal Supplement

Seals/Symbols

USDA Organic

Oregon Tilth Certified Organic (OTCO)

Suggested/Recommended/Usage/Directions

Suggested use: Take 1 mL twice daily in warm water or with food or as directed by your healthcare professional. 1 mL = approx. 40 drops. Do not exceed recommended dose.

Shake well.

Storage

Store upright in a cool, dry place.

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

See for yourself

Organic "True" Cinnamon (Ceylon) Extract by Oregon's Wild Harvest label

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

Organic "True" Cinnamon (Ceylon) Extract 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 Organic "True" Cinnamon (Ceylon) Extract by Oregon's Wild Harvest

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 mL Dosage formLiquid Servings per container30 Amounts shown are per serving.

True Cinnamon

Interacts with
258 drugs
333 mg per serving

Ceylon cinnamon is the so-called 'true' cinnamon, valued as a spice and used in traditional medicine for blood sugar, cholesterol, and digestion. Evid...

True Cinnamon monograph & interactions

Other (inactive) ingredients: Alcohol, Water, Distilled. These complete the product’s ingredient list but are not active constituents.

Interaction report

Organic "True" Cinnamon (Ceylon) Extract by Oregon's Wild Harvest Drug Interactions

Want to check YOUR meds against Organic "True" Cinnamon (Ceylon) 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 checker
258Drugs
258 Moderate

Ingredients driving the most interactions

True Cinnamon 258

Individual Drug Interactions

The ingredients in Organic "True" Cinnamon (Ceylon) Extract interact with 258 drugs. Click any drug to see the details.

1 of the 1 ingredient in Organic "True" Cinnamon (Ceylon) Extract interact with drugs. Each result below shows which ingredient is responsible. True Cinnamon

Each ingredient & the kinds of drugs it affects

For each ingredient in Organic "True" Cinnamon (Ceylon) Extract 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.

True Cinnamon2 drug types · 258 drugs

Antidiabetes Drugs

Theoretically, Ceylon cinnamon may have additive effects with antidiabetes drugs.
Ceylon cinnamon may lower blood glucose levels. Dose adjustments might be necessary.

Likelihood Possible Evidence D
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.

Likelihood Possible Evidence D
True Cinnamon full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Organic "True" Cinnamon (Ceylon) Extract, from the product label.

Oregon's Wild Harvest

See all Oregon's Wild Harvest products
Name
Oregon's Wild Harvest
City
Redmond
State
OR
ZipCode
97756
Phone Number
800-316-6869
Web Address
oregonswildharvest.com
Pharmacist Counseling Corner

Organic "True" Cinnamon (Ceylon) Extract by Oregon's Wild Harvest: Common Questions

Does Organic "True" Cinnamon (Ceylon) Extract by Oregon's Wild Harvest interact with any medications?
Yes. Based on its ingredients, Organic "True" Cinnamon (Ceylon) Extract has a known interaction with 258 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Organic "True" Cinnamon (Ceylon) Extract contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism 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 Ceylon cinnamon safe to use while I'm breastfeeding?
Food amounts of Ceylon cinnamon are likely safe while breastfeeding, but the safety of supplement-strength doses like this extract hasn't been studied well enough to know either way. Talk with your doctor or pharmacist about your specific situation before starting.
What are the most common side effects?
Bloating, indigestion, and nausea are the most common side effects when taken orally. Allergic reactions like rashes or itching are uncommon but have been reported in small numbers of people.
Does Ceylon cinnamon actually help with blood sugar or weight loss?
The evidence we hold rates Ceylon cinnamon as possibly ineffective for both diabetes and obesity. If those are your goals, the data doesn't support this product, so you might want to explore other options with your doctor.
Can I use this extract if I'm pregnant?
Our data rates Ceylon cinnamon as likely safe in pregnancy, though there is one conflicting safety note that marks it possibly unsafe. Because of that mixed information, talk with your doctor before using this product while pregnant so you can make the best choice for your situation.
What is Ceylon cinnamon, and how is it different from regular cinnamon?
Ceylon cinnamon (Cinnamomum verum) is the bark of a tree native to Sri Lanka and is considered the "true" cinnamon. It's different from cassia cinnamon, which is more common in stores and has a different chemical makeup.

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

Not sure if Organic "True" Cinnamon (Ceylon) Extract is safe with your meds?

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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.

Organic "True" Cinnamon (Ceylon) Extract label
Go deeper

The Full Monographs Behind Organic "True" Cinnamon (Ceylon) Extract’s Ingredients

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

Herb & supplement monograph

Ceylon Cinnamon

Interacts with 258 drugs

Ceylon 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

Sources & How We Checked

Organic "True" Cinnamon (Ceylon) 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.

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 22 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.

Ceylon Cinnamon 22 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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.
  8. Kanerva L, Estlander T, Jolanki R. Occupational allergic contact dermatitis from spices. Contact Dermatitis 1996;35:157-62. PubMed
  9. 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.
  10. 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
  11. 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
  12. 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
  13. 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.
  14. 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.
  15. Admani S, Hill H, Jacob SE. Cinnamon Sugar Scrub Dermatitis: "Natural" Is Not Always Best. Pediatr Dermatol. 2017;34(1):e42-e43. PubMed
  16. 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
  17. Vandersall A, Katta R. Eyelid dermatitis as a manifestation of systemic contact dermatitis to cinnamon. Dermatitis. 2015 Jul-Aug;26(4):189. PubMed
  18. Brancheau D, Patel B, Zughaib M. Do cinnamon supplements cause acute hepatitis? Am J Case Rep 2015;16:250-4. PubMed
  19. 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
  20. 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
  21. 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
  22. 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

See these in context on the Ceylon Cinnamon 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.

© 2021 Therapeutic Research Center, LLC

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