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

Forskohlii Extract Ingredients & Drug Interactions

by Nature's Way

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

First and foremost: checking Forskohlii 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: Major

Forskohlii Extract is a dietary supplement by Nature's Way with 1 active ingredient. Its ingredients are commonly taken for weight management, asthma and breathing, high blood pressure.Based on those ingredients, 915 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Coleus forskohlii root extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Forskohlii Extract by Nature's Way

Ask about any prescription or over-the-counter medication and we check it for interactions with Forskohlii Extract by Nature's Way — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
Prefer a human? Send your question to our licensed pharmacists — free, answered by email within 24 hours.

HelloPharmacist Scorecard of Forskohlii Extract by Nature's Way

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

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 30, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 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: coleus forskohlii root extract, a plant-derived supplement traditionally used in herbal medicine. The capsule itself is made from plant-derived cellulose, and the inactive ingredients are magnesium stearate and silica, which are common excipients (binders and anti-caking agents).

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

We hold no graded evidence for this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: supports cell signaling.
  • Our graded evidence for these ingredients doesn't cover that particular purpose.

The evidence we hold for forskohlii extract does not establish its effectiveness for any of the conditions it's marketed for — angina, asthma, cancer, congestive heart failure, eczema, and dry eye all carry a rating of insufficient reliable evidence. That doesn't mean it doesn't work; it means the research available to us isn't strong enough to say either way.

If you're considering this for a specific health concern, talk it over with your doctor about what the current evidence really shows.

The evidence, ingredient by ingredient Coleus

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.

Taken by mouth, coleus extract is generally well tolerated, though gastrointestinal side effects do occur. The most common are diarrhea, nausea, vomiting, and constipation — a small number of trial participants reported increased bowel movements and loose stools, and some studies suggest a roughly 10% rate of gastrointestinal upset overall.

The safety data advises against use during pregnancy and breastfeeding because there isn't enough information to know it's safe. Because coleus may lower blood pressure and long-term safety isn't well studied, use it only with professional guidance.

Side effects, ingredient by ingredient Coleus

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Coleus.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 916 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, double-check with your doctor or pharmacist if you're on nitrates or calcium channel blockers — the risk of blood pressure drop is most serious with these. Also flag it if you take blood pressure medications, blood thinners (including warfarin), antiplatelet drugs like aspirin, or any medications processed by your liver's CYP2C9 or CYP3A4 enzymes.

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. Major medication interactions have been identified, and safety information is well characterized.

Forskohlii Extract by Nature's Way carries serious interactions with heart medications and blood thinners, and its effectiveness for any of its marketed uses isn't established in our data. It's generally well tolerated when taken by mouth, but gastrointestinal side effects can happen, and it shouldn't be used in pregnancy or while breastfeeding.

Talk with your own doctor or pharmacist before starting it, especially if you take any heart or blood pressure medications, blood thinners, or drugs metabolized by your liver.

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 25, 2021.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Forskohlii Extract, straight from the product label.

Brand Nature's Way
Barcode (UPC) 763948085767
Net contents 60 Vegan Capsule(s)
Market status On market
Date entered into DSLD Mar 25, 2021
DSLD ID 242820
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), 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 Forskohlii Extract by Nature's Way, 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)
UPC/BARCODE
763948085767
IngredientAmount% DV
Coleus forskohlii root extract50 mg--

Other ingredients: Cellulose, plant-derived Capsule, 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.
Formulation

Supports cell signaling

Premium extract

NON GMO Project Verified nongmoproject.org

Gluten free. No salt, yeast-derived ingredients, wheat, corn, soy, dairy products, or artificial colors, flavors, or preservatives.

Vegan

Formula

Forskohlii is a plant in the mint family. The plant is native to southern Asia, in places like India, Nepal, and Thailand and has been traditionally used as an Ayurvedic herb. It increases cyclic AMP, a key signal transmitter in biological processes.

Forskohlii Extract 50 mg per serving

FDA Disclaimer Statement

These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

General Statements

Nature’s Way Since 1969

Bottles made From 97% Post-consumer recycled plastic

Seals/Symbols

NON GMO Project Verified nongmoproject.org

Vegan Quality Global Sourcing Bottled & Tested In the USA

FDA Statement of Identity

Dietary supplement

Suggested/Recommended/Usage/Directions

Recommendation: Take 1 capsule twice daily with meals.

Precautions

If you are pregnant, nursing, or taking any medications, consult a healthcare professional before use.

Keep out of reach of children.

Safety sealed with printed inner seal. Do not use if seal is broken or missing.

Brand IP Statement(s)

Copyright 2020 Nature’s Way Brands, LLC

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

See for yourself

Forskohlii Extract by Nature's Way label

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

Forskohlii 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 Forskohlii Extract by Nature's Way

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

Serving size1 Capsule(s) Dosage formCapsule Amounts shown are per serving.

Coleus forskohlii root extract

Interacts with
915 drugs
50 mg per serving Form: Forskolin

Coleus is a plant from the mint family whose root contains a compound called forskolin, often marketed for weight loss, asthma, and heart health. Whil...

Coleus forskohlii root extract monograph & interactions

Other (inactive) ingredients: Cellulose, Plant-derived Capsule, Magnesium Stearate, Silica. These complete the product’s ingredient list but are not active constituents.

Interaction report

Forskohlii Extract by Nature's Way Drug Interactions

Want to check YOUR meds against Forskohlii 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
915Drugs
29 Major 886 Moderate

Ingredients driving the most interactions

Coleus forskohlii root extract 915

Individual Drug Interactions

The ingredients in Forskohlii Extract interact with 915 drugs. Click any drug to see the details.

1 of the 1 ingredient in Forskohlii Extract interact with drugs. Each result below shows which ingredient is responsible. Coleus forskohlii root extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Forskohlii 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.

Coleus forskohlii root extract7 drug types · 915 drugs

Calcium Channel Blockers

Theoretically, combining coleus with calcium channel blockers might increase the coronary vasodilatory effects.
Forskolin, a constituent of coleus, and calcium channel blockers both cause coronary vasodilatory effects.

Likelihood Probable Evidence B
Nitrates

Theoretically, combining coleus with nitrates might increase the coronary vasodilatory effects.
Forskolin, a constituent of coleus, and nitrates both cause coronary vasodilatory effects.

Likelihood Probable Evidence B
Anticoagulant/Antiplatelet Drugs

Theoretically, concomitant use of coleus and anticoagulant or antiplatelet drugs might increase the risk of bruising and bleeding.
In vitro and animal research shows that forskolin, a constituent of coleus, can inhibit platelet aggregation and adhesion.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, combining coleus with antihypertensive drugs might cause additive blood pressure lowering effects and increase the risk of hypotension.
Animal research shows that forskolin, a constituent of coleus, may lower blood pressure.

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

Theoretically, taking coleus may affect drugs metabolized by CYP2C9 and increase the risk of adverse effects or reduce the effectiveness.
Research on the effect of coleus on CYP2C9 is conflicting. Some animal research shows that coleus extract can induce CYP2C9, while in vitro research shows that coleus can inhibit CYP2C9. Until more is known, advise patients that taking coleus might increase or decrease levels of drugs metabolized by CYP2C9.

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

Theoretically, taking coleus might decrease serum levels of drugs metabolized by CYP3A4.
In vitro research shows that coleus can activate the nuclear receptor, pregnane X receptor (PXR), which results in increased expression of CYP3A4. Although the clinical significance of this is not known, use caution when considering concomitant use of coleus and other drugs affected by these enzymes.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, taking coleus may affect the metabolism of warfarin and increase the risk of adverse effects or reduce the effectiveness.
Some animal research shows that coleus extract can induce cytochrome P450 2C9 (CYP2C9), an enzyme that metabolizes warfarin. However, other in vitro research shows that coleus can inhibit CYP2C9. Theoretically, taking coleus with drugs metabolized by CYP2C9 might affect drug levels and the risk of adverse effects. Until more is known, advise patients that taking coleus might increase or decrease levels of warfarin.

Likelihood Possible Evidence D
Coleus forskohlii root extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Forskohlii Extract, from the product label.

Nature's Way

See all Nature's Way products
Name
Nature's Way Brands, LLC (previously branded Enzymatic Therapy, LLC)
City
Green Bay
State
WI
ZipCode
54311
Phone Number
1-800-962-8873
Web Address
naturesway.com
Pharmacist Counseling Corner

Forskohlii Extract by Nature's Way: Common Questions

Does Forskohlii Extract by Nature's Way interact with any medications?
Yes. Based on its ingredients, Forskohlii Extract has a known interaction with 915 medications, including 29 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Forskohlii 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.
What does coleus forskohlii actually do?
Coleus is a plant extract that's been used traditionally in herbal medicine, and the active compound is called forskolin. The evidence we hold doesn't establish that it works for any of the conditions it's marketed for — angina, asthma, heart failure, cancer, eczema, or dry eye — so talk with your doctor about what the real research shows for your specific situation.
Can I take this if I'm on a blood pressure medication?
Not without checking first with your own doctor or pharmacist. Coleus can lower blood pressure on its own, and combining it with your medication could drop your pressure too far. Because it may also interact with the way your liver processes certain drugs, your healthcare provider needs to know about all your prescriptions before you start.
Is this safe to take long-term?
The safety data isn't there for long-term use, so professional guidance is important if you're thinking about using it regularly. You should use it only under the care of your doctor or pharmacist who can monitor you for side effects and blood pressure changes.
What side effects might I notice?
The most common are gastrointestinal — diarrhea, nausea, vomiting, and constipation. A small number of people in trials experienced loose stools and increased bowel movements, and some evidence suggests about a 10% rate of stomach upset overall with oral use. If these happen, let your healthcare provider know.
Is it safe to take while pregnant or breastfeeding?
No — the safety data advises against it during pregnancy and breastfeeding because there isn't enough information to know it's safe. If you're pregnant, planning to become pregnant, or breastfeeding, talk with your doctor before taking this product.
Does this affect how my other medications work?
Yes, potentially. Coleus may alter how your liver metabolizes certain drugs, which could change how well they work or increase side effects. The safest move is to check all your prescriptions against the interaction tool on this page, then confirm with your own pharmacist or doctor before you start.

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

Not sure if Forskohlii Extract is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Forskohlii Extract label
Go deeper

The Full Monographs Behind Forskohlii Extract’s Ingredients

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

Herb & supplement monograph

Coleus

Interacts with 915 drugs

Coleus is a plant from the mint family whose root contains a compound called forskolin, often marketed for weight loss, asthma, and heart health. While early lab and small human studies are...

Read the full Coleus monograph →
Sources

Sources & How We Checked

Forskohlii 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 16 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.

Coleus 16 references
  1. Baumann G, Felix S, Sattelberger U, Klein G. Cardiovascular effects of forskolin (HL-362) in patients with idiopathic congestiv cardiomyopathy. A comparative study with dobutamine and sodium nitroprusside. J Cardiovasc Pharmacol 1990;16:93-100.
  2. Kramer W, Thormann J, Kindler M, Schlepper M. Effects of forskolin on left ventricular function in dilated cardiomyopathy. Arzneimittelforschung 1987;37:364-7.
  3. Bauer K, Dietersdorfer F, Kaspar S, et al. Pharmacodynamic effects of inhaled dry powder formulations of fenoterol and colforsin in asthma. Clin Pharmacol Ther 1993;53:76-83. PubMed
  4. Christenson JT, Thulesius O, Nazzal MM. The effect of forskolin on blood flow, platelet metabolism, aggregation and ATP release. Vasa 1995;24:56-61.
  5. Agarwal KC, Zielinski BA, Maitra RS. Significance of plasma adenosine in the antiplatelet activity of forskolin: potentiation by dipyridamole and dilazep. Thromb Haemost 1989;61:106-10. DOI
  6. Agarwal KC, Parks RE. Forskolin: a potential antimetastatic agent. Int J Cancer 1983;32:801-4. PubMed
  7. Almeida, F. C. and Lemonica, I. P. The toxic effects of Coleus barbatus B. on the different periods of pregnancy in rats. J Ethnopharmacol 2000;73(1-2):53-60. PubMed
  8. Ding, X. and Staudinger, J. L. Induction of drug metabolism by forskolin: the role of the pregnane X receptor and the protein kinase a signal transduction pathway. J Pharmacol Exp Ther 2005;312(2):849-856. PubMed
  9. Staudinger, J. L., Ding, X., and Lichti, K. Pregnane X receptor and natural products: beyond drug-drug interactions. Expert.Opin Drug Metab Toxicol 2006;2(6):847-857. PubMed
  10. van Hecke, E., Hindryckx, P., Geuns, J. M., and Devriese, E. Airborne contact dermatitis from coleus in a housewife. Contact Dermatitis 1991;25(2):128-129. PubMed
  11. Schlepper, M., Thormann, J., and Mitrovic, V. Cardiovascular effects of forskolin and phosphodiesterase-III inhibitors. Basic Res Cardiol 1989;84 Suppl 1:197-212. PubMed
  12. Dooms-Goossens, A., Borghijs, A., Degreef, H., Devriese, E. G., and Geuns, J. M. Airborne contact dermatitis to Coleus. Contact Dermatitis 1987;17(2):109-110. PubMed
  13. Lindner, E., Dohadwalla, A. N., and Bhattacharya, B. K. Positive inotropic and blood pressure lowering activity of a diterpene derivative isolated from Coleus forskohli: Forskolin. Arzneimittelforschung 1978;28(2):284-289.
  14. Loftus HL, Astell KJ, Mathai ML, et al. Coleus forskohlii Extract Supplementation in Conjunction with a Hypocaloric Diet Reduces the Risk Factors of Metabolic Syndrome in Overweight and Obese Subjects: A Randomized Controlled Trial. Nutrients. 2015;7(11): PubMed
  15. Yokotani K, Chiba T, Sato Y, et al. Hepatic cytochrome P450 mediates interaction between warfarin and Coleus forskohlii extract in vivo and in vitro. J Pharm Pharmacol. 2012;64(12):1793-801.
  16. Nishijima C, Chiba T, Sato Y, Umegaki K. Nationwide Online Survey Enables the Reevaluation of the Safety of Coleus forskohlii Extract Intake Based on the Adverse Event Frequencies. Nutrients. 2019;11(4). pii: E866. PubMed

See these in context on the Coleus 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

Keep exploring
Supplement interaction checker › Check any supplement or product against your medications Drug–drug interactions › Check two or more of your medications against each other Browse medications A–Z › Every drug we've checked against herbs & supplements NDC & pricing lookup › Find a drug’s NDCs, packaging and costs Ask a pharmacist › Free, personal answer from our licensed team