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Dietary supplement

Organic Cat's Claw Ingredients & Drug Interactions

by Herbal Goodness

Organic Cat's Claw label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Organic Cat's Claw 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 Cat's Claw is a dietary supplement by Herbal Goodness with 1 active ingredient. Its ingredients are commonly taken for osteoarthritis and rheumatoid arthritis, inflammation, immune support.Based on those ingredients, 962 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Cat's Claw Leaf Extract. 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 Cat's Claw by Herbal Goodness

Ask about any prescription or over-the-counter medication and we check it for interactions with Organic Cat's Claw by Herbal Goodness — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Organic Cat's Claw by Herbal Goodness

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 Aug 27, 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 liquid contains one active ingredient: cat's claw leaf extract. Cat's claw is a woody vine from the Amazon, traditionally used for its alkaloid compounds—chiefly rhynchophylline—which research suggests may affect blood pressure, immune function, and how your body processes certain drugs.

The product also contains inactive ingredients (glycerin, additional cat's claw, and purified water) that serve as the liquid base and preservative.

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 Cat's Claw product and its label doesn't state a use — see Cat's Claw'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 on cat's claw for specific health conditions—including hay fever, Alzheimer's disease, asthma, osteoporosis, cancer, and chronic fatigue syndrome—is insufficient to rate. That means the research so far hasn't been robust enough to confirm whether it works for these uses.

If you're thinking about this for a particular condition, talk with your doctor or pharmacist about what the current science actually supports.

The evidence, ingredient by ingredient Cat's Claw

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.

Cat's claw is generally well tolerated in the short term by healthy adults, but long-term safety isn't well studied. Some people in a clinical trial experienced headache, fatigue, insomnia, or neuropathy, though those patients had advanced cancer, so it's unclear whether the herb or their illness caused those effects.

Several case reports link cat's claw to kidney injury, with symptoms improving once people stopped taking it. Avoid this product during pregnancy—it has a history of traditional use to trigger miscarriage, and safety data in pregnant people is lacking.

Don't use it while breastfeeding either, because we don't have enough safety information.

Side effects, ingredient by ingredient Cat's Claw

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 — Cat's Claw.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs.
  • For scale: 963 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 take blood thinners or antiplatelet drugs, blood pressure medications (antihypertensives or calcium channel blockers), Paxlovid, immune-suppressing medications, or drugs metabolized by the CYP3A4 enzyme system. No interactions are documented for the specific dose and formulation here, but theoretical risks exist based on lab and animal research.

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.

Cat's claw may be worth considering if you're interested in its traditional uses, but you'll need to be cautious if you take blood pressure medications, blood thinners, immune-suppressing drugs, or certain other medications processed by your liver. It's not appropriate in pregnancy or while nursing.

Before you start, check your medications with your doctor or pharmacist to make sure there's no interaction.

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 Dec 14, 2023.

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 Cat's Claw, straight from the product label.

Brand Herbal Goodness
Barcode (UPC) 798304471465
Net contents 12 Fluid Ounce(s); 354 mL
Market status On market
Date entered into DSLD Dec 14, 2023
DSLD ID 301076
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Kosher, Organic
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 Cat's Claw by Herbal Goodness, 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:
15 mL
Maximum serving Sizes:
15 mL
Servings per container
23
UPC/BARCODE
798304471465
IngredientAmount% DV
Cat's Claw Leaf Extract1000 mg--

Other ingredients: Glycerin, Cat's Claw, Water, Purified

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.
Formula

Cat's Claw is a sensational herbal extract made from the bark of a woody vine.

Approved Keto Friendly

Certified Kosher by Earth Kosher EarthKosher

General Statements

100% Women owned, 10% profits & ethical trade

Impact We do right by others We believe in business for social good and give 10% of profits to support the education of African girls. Sustainability We respect mother earth We believe in the environment and support our farmers through fairtrade practices.

100% Satisfaction Guaranteed Questions or comments? Instagram herbalgoodnessco Twitter herbal_goodness Visit HerbalGoodnessco.com for a complete line of products

Women Owned Fairly Traded

Formulation

Quality We only use the best Made from the best quality herbs, our products are tested to the highest standard by 3rd party certifiers.

Made with Non-GMO ingredients

Liquid Extract

USDA Organic

Auto immune & inflammation support

Certified Organic by Oregon Tilth

It has been used for centuries to boost immunity and maintain a strong musculoskeletal system. It may support cartilage, tendon and joint health, and promote overall well being.

Seals/Symbols

Packaged in the USA

USDA Organic

EarthKosher

FDA Disclaimer Statement

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

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested use: As a dietary supplement, take 1 tablespoon, 2 to 3 times a day with food. May be diluted with water or juice.

Storage

Warning: Store tightly closed in a cool dry place.

Precautions

Do not use if inner seal or tamper evident seal is broken.

If pregnant or have a medical condition, consult your physician before using this herbal product.

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

See for yourself

Organic Cat's Claw by Herbal Goodness label

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

Organic Cat's Claw 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 Cat's Claw by Herbal Goodness

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

Serving size15 mL Dosage formLiquid Servings per container23 Amounts shown are per serving.

Cat's Claw Leaf Extract

Interacts with
962 drugs
1000 mg per serving

Cat's claw is a South American vine traditionally used for inflammation, joint pain, and immune support. Some small studies hint it may help with arth...

Cat's Claw Leaf Extract monograph & interactions

Other (inactive) ingredients: Glycerin, Cat's Claw, Water, Purified. These complete the product’s ingredient list but are not active constituents.

Interaction report

Organic Cat's Claw by Herbal Goodness Drug Interactions

Want to check YOUR meds against Organic Cat's Claw?

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
962Drugs
962 Moderate

Ingredients driving the most interactions

Cat's Claw Leaf Extract 962

Individual Drug Interactions

The ingredients in Organic Cat's Claw interact with 962 drugs. Click any drug to see the details.

1 of the 1 ingredient in Organic Cat's Claw interact with drugs. Each result below shows which ingredient is responsible. Cat's Claw Leaf Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Organic Cat's Claw 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.

Cat's Claw Leaf Extract6 drug types · 962 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, cat's claw may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
Cat's claw contains rhynchophylline and isorhynchophylline. Animal research suggests that these alkaloids can inhibit platelet aggregation. This interaction has not been reported in humans.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, taking cat's claw with antihypertensive drugs might increase the risk of hypotension.
Cat's claw contains rhynchophylline. In vitro and animal research suggests that rhynchophylline can lower blood pressure. This interaction has not been reported in humans.

Likelihood Probable Evidence D
Calcium Channel Blockers

Theoretically, taking cat's claw with calcium channel blockers might increase the risk of hypotension.
Cat's claw contains various alkaloids, including rhynchophylline, isorhynchophylline, corynoxeine, and isocorynoxiene. Animal research suggests that these alkaloids can lower blood pressure by acting as calcium channel blockers. This interaction has not been reported in humans.

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

Theoretically, cat's claw might increase or decrease the levels and effects of drugs metabolized by CYP3A4.
Cat's claw may affect the clearance of drugs metabolized by CYP3A4. In vitro research shows that cat's claw can inhibit CYP3A4 enzymes. In one case report, a patient taking cat's claw (at an unspecified dose) experienced increased serum levels of atazanavir, ritonavir, and saquinavir, all of which are CYP3A4 substrates. Levels returned to normal 15 days after discontinuation of the cat's claw supplement, suggesting inhibition of CYP3A4 by cat's claw. In contrast, animal research suggests that rhynchophylline, an alkaloid contained in cat's claw, induces CYP3A expression and accelerates the metabolism of nirmatrelvir, the active component in the nirmatrelvir/ritonavir combination product.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, cat's claw might interfere with immunosuppressive therapy.
In human and laboratory research, cat's claw has been shown to have immunostimulating activity. It stimulates phagocytosis and increases respiratory cellular activity and the mobility of leukocytes. Theoretically, this could interfere with the activity of immunosuppressant medications.

Likelihood Possible Evidence D
Nirmatrelvir/Ritonavir (Paxlovid)

Theoretically, cat's claw may decrease the levels of nirmatrelvir.
Cat's claw contains rhynchophylline. Animal research suggests that this alkaloid induces CYP3A expression, thereby accelerating the metabolism of nirmatrelvir, the active component in the nirmatrelvir/ritonavir combination product. This interaction has not been reported in humans.

Likelihood Possible Evidence D
Cat's Claw Leaf Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Organic Cat's Claw, from the product label.

Herbal Goodness

See all Herbal Goodness products
Name
Herbal Goodness
Street Address
2150 S. Central Expressway, Suite 200
City
McKinney
State
TX
ZipCode
75070
Phone Number
800-820-4829
Web Address
herbalgoodnessco.com
Pharmacist Counseling Corner

Organic Cat's Claw by Herbal Goodness: Common Questions

Does Organic Cat's Claw by Herbal Goodness interact with any medications?
Yes. Based on its ingredients, Organic Cat's Claw has a known interaction with 962 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Organic Cat's Claw 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.
Can I take cat's claw if I'm pregnant or breastfeeding?
No. Cat's claw is considered possibly unsafe in pregnancy because of its traditional use to trigger miscarriage and lack of safety research in pregnant people. Avoid it while breastfeeding as well, since we don't have enough data on safety for nursing infants. Talk with your doctor if you're pregnant, planning to become pregnant, or nursing.
What are the side effects I should watch for?
Short-term, cat's claw is generally well tolerated. In a clinical trial, some people reported headache, fatigue, insomnia, or nerve pain, though those patients had advanced cancer. Case reports also link cat's claw to kidney injury in some people—stop taking it and see your doctor right away if you notice signs of kidney problems, like changes in urination or swelling.
Does cat's claw actually work for hay fever, asthma, or other conditions?
The evidence we hold isn't strong enough to confirm it works for hay fever, asthma, Alzheimer's, osteoporosis, cancer, or chronic fatigue. If you're considering it for a specific health issue, ask your doctor what the science currently supports.
Why does this product interact with so many medications?
Cat's claw contains alkaloids that can affect your blood pressure, immune system, and how your liver breaks down drugs. Because many medications are processed the same way, changes to that process can ripple across a large number of prescriptions. That's why it's important to check your specific medications before starting.
What is cat's claw and where does it come from?
Cat's claw is a woody vine from the Amazon rainforest. The active compounds are alkaloids (particularly rhynchophylline) found in the leaves and bark. It's been used traditionally in South America, though modern research is still exploring what it actually does in people.

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

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Organic Cat's Claw label
Go deeper

The Full Monographs Behind Organic Cat's Claw’s Ingredients

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

Herb & supplement monograph

Cat's Claw

Interacts with 962 drugs

Cat's claw is a South American vine traditionally used for inflammation, joint pain, and immune support. Some small studies hint it may help with arthritis symptoms, but the overall evidence...

Read the full Cat's Claw monograph →
Sources

Sources & How We Checked

Organic Cat's Claw'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.

Cat's Claw 16 references
  1. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82. PubMed
  3. Sandoval M, Charbonnet RM, Okuhama NN, et al. Cat's claw inhibits TNFalpha production and scavenges free radicals: role in cytoprotection. Free Radic Biol Med 2000;29:71-78.
  4. Müller AC, Kanfer I. Potential pharmacokinetic interactions between antiretrovirals and medicinal plants used as complementary and African traditional medicines. Biopharm Drug Dispos. 2011;32(8):458-70. PubMed
  5. Sheng, Y., Bryngelsson, C., and Pero, R. W. Enhanced DNA repair, immune function and reduced toxicity of C-MED-100, a novel aqueous extract from Uncaria tomentosa. J Ethnopharmacol. 2000;69(2):115-126. PubMed
  6. Lamm, S., Sheng, Y., and Pero, R. W. Persistent response to pneumococcal vaccine in individuals supplemented with a novel water soluble extract of Uncaria tomentosa, C-Med-100. Phytomedicine 2001;8(4):267-274.
  7. Sheng, Y., Li, L., Holmgren, K., and Pero, R. W. DNA repair enhancement of aqueous extracts of Uncaria tomentosa in a human volunteer study. Phytomedicine 2001;8(4):275-282.
  8. Chen, C. X., Jin, R. M., Li, Y. K., Zhong, J., Yue, L., Chen, S. C., and Zhou, J. Y. Inhibitory effect of rhynchophylline on platelet aggregation and thrombosis. Zhongguo Yao Li Xue.Bao. 1992;13(2):126-130.
  9. Flythe, J. E., Rueda, J. F., Riscoe, M. K., and Watnick, S. Silicate nephrolithiasis after ingestion of supplements containing silica dioxide. Am.J.Kidney Dis. 2009;54(1):127-130. PubMed
  10. Zhou, J. and Zhou, S. Antihypertensive and neuroprotective activities of rhynchophylline: the role of rhynchophylline in neurotransmission and ion channel activity. J.Ethnopharmacol. 10-28-2010;132(1):15-27. PubMed
  11. Zhou, J. Y. and Zhou, S. W. Isorhynchophylline: A plant alkaloid with therapeutic potential for cardiovascular and central nervous system diseases. Fitoterapia 2012;83(4):617-626. PubMed
  12. Hemingway, S. R. and Phillipson, J. D. Proceedings: Alkaloids from S. American species of Uncaria (Rubiaceae). J.Pharm.Pharmacol. 1974;26 Suppl:113P.
  13. Hilepo, J. N., Bellucci, A. G., and Mossey, R. T. Acute renal failure caused by 'cat's claw' herbal remedy in a patient with systemic lupus erythematosus. Nephron 1997;77(3):361. PubMed
  14. De Paula LCL, Fonseca F, Perazzo F, et al. Uncaria tomentosa (cat's claw) improves quality of life in patients with advanced solid tumors. J Altern Complement Med. 2015;21(1):22-30.
  15. Portalatin G, Shettigar S, Carrion-Rodriguez A, et al. Ketogenic-Diet Shake Containing Uncaria tomentosa-Associated Acute Interstitial Nephritis. Case Rep Nephrol Dial 2022;12(3):219-225.
  16. Lei S, Guo A, Lu J, et al. Activation of PXR causes drug interactions with Paxlovid in transgenic mice. Acta Pharm Sin B 2023;13(11):4502-4510. PubMed

See these in context on the Cat's Claw 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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