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Dietary supplement

Cat's Claw & Devil's Claw Strawberry Flavor Ingredients & Drug Interactions

by TerraVita

Cat's Claw & Devil's Claw Strawberry Flavor 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 Cat's Claw & Devil's Claw Strawberry Flavor 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

Cat's Claw & Devil's Claw Strawberry Flavor is a dietary supplement by TerraVita with 1 active ingredient. Its ingredients are commonly taken for osteoarthritis and rheumatoid arthritis, inflammation, immune support.Based on those ingredients, 1,076 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Cat's Claw & Devil's Claw Glycerite Liquid 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 Cat's Claw & Devil's Claw Strawberry Flavor by TerraVita

Ask about any prescription or over-the-counter medication and we check it for interactions with Cat's Claw & Devil's Claw Strawberry Flavor by TerraVita — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Cat's Claw & Devil's Claw Strawberry Flavor by TerraVita

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 12, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 2 active ingredients.
  • “Cat's Claw & Devil's Claw Glycerite Liquid Extract” is listed as a grouped ingredient — the label gives one combined amount (0.13 mL) without saying how much of each component you get.

This product has 2 active ingredients: Devil's Claw Glycerite Liquid Extract and Cat's Claw Glycerite Liquid Extract. Devil's claw is traditionally used for joint and back pain, while cat's claw has been studied for a range of conditions, though strong evidence is limited.

Both are delivered as glycerite extracts — a form where the herbs are dissolved in glycerin — and the product is flavored with strawberry. The inactive ingredients are glycerin and strawberry flavor.

Does it work?

Moderate evidence
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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: Joint pain and inflammation support.
  • We looked for evidence on: Osteoarthritis, Rheumatoid arthritis (RA), Back pain, Myalgia, Tendinopathy, Gout — and 2 related terms.
  • The strongest evidence on file: Devil's Claw is rated "Possibly Effective" for Back pain (Natural Medicines).
  • Also on file: Devil's Claw is rated "Possibly Effective" for Osteoarthritis.
  • Also on file: Cat's Claw is rated "Insufficient Reliable Evidence To Rate" for Osteoarthritis, Rheumatoid arthritis (RA).

Devil's claw is rated possibly effective for back pain and osteoarthritis based on the data we hold. For atherosclerosis, evidence is insufficient to rate it.

Cat's claw has not shown sufficient reliable evidence in our data for the conditions it's been studied in, which include hay fever, Alzheimer disease, asthma, osteoporosis, cancer, and chronic fatigue syndrome. Talk to your pharmacist or doctor about whether either ingredient has solid evidence for your specific concern.

The evidence, ingredient by ingredient Cat's Claw Devil'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 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Devil's claw is generally well tolerated for short-term use in healthy adults, but digestive upset is common — diarrhea, indigestion, and allergic skin reactions occur in a notable number of users, particularly at higher doses. Rarely, gastrointestinal bleeding has been reported.

Some individuals have also experienced headache, dizziness, or loss of taste. Avoid devil's claw during pregnancy because it may affect the uterus and its safety has not been established.

Do not use while breastfeeding due to insufficient safety information. Cat's claw is generally well tolerated short-term in healthy adults, but long-term safety isn't well studied.

In clinical trials, some patients experienced blood count changes (anemia in a small percentage), headache, fatigue, insomnia, and nerve-related symptoms; however, these patients had advanced cancer and the study had no placebo group, so it's unclear what caused the effects. There are also rare case reports of kidney injury linked to cat's claw.

Avoid cat's claw during pregnancy because of traditional use as an abortifacient and lack of safety data. Do not use while breastfeeding due to insufficient safety information.

Side effects, ingredient by ingredient Cat's Claw Devil'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?
  • 2 of the 2 matched ingredients can interact with medications — Cat's Claw, Devil'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: 1,077 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.

Check these medication types before taking this product. First, blood thinners (anticoagulants) and antiplatelet drugs — both ingredients may increase bleeding risk (Moderate severity).

Second, blood-pressure medications and calcium channel blockers — cat's claw may lower blood pressure further (Moderate severity). Third, drugs processed by your liver's CYP3A4 enzyme, including Paxlovid (nirmatrelvir/ritonavir) — both ingredients may affect their levels or effectiveness (Moderate severity).

Fourth, immune-suppressing medications — cat's claw may interfere with them (Moderate severity). Fifth, stomach-acid medications like H2-blockers and proton pump inhibitors — devil's claw may reduce their effectiveness (Minor severity).

Use the search tool on this page to check your specific medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This product is intended for joint and back pain, though the evidence for cat's claw specifically is limited in our data. It's important to check your medications — especially blood thinners, blood-pressure drugs, stomach-acid medications, and immune suppressants — before you start.

Talk to your pharmacist or doctor if you're on any prescription medications or have a history of digestive issues, kidney problems, or bleeding disorders.

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 Dec 13, 2022.

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 Cat's Claw & Devil's Claw Strawberry Flavor, straight from the product label.

Brand TerraVita
Barcode (UPC) 064435222284
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Dec 13, 2022
DSLD ID 281803
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years)
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 Cat's Claw & Devil's Claw Strawberry Flavor by TerraVita, 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:
25 Drop(s)
Maximum serving Sizes:
40 Drop(s)
Servings per container
227
UPC/BARCODE
064435222284
IngredientAmount% DV
Devil's Claw Glycerite Liquid Extract0 NP--
Cat's Claw & Devil's Claw Glycerite Liquid Extract0.13 mL--
Cat's Claw Glycerite Liquid Extract0 NP--

Other ingredients: Glycerin, Strawberry flavor

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.
Brand IP Statement(s)

Copyright 2018 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Formula

Glycerite liquid extract (1:5) Strawberry flavored

Formulation

Alcohol free

Suggested/Recommended/Usage/Directions

Suggested Use: Take 25-40 drops of extract in a small amount of warm water 3-4 times daily. Shake well before using.

Precautions

Keep away from children.

Do not use if safety seal around cap is broken or missing.

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

See for yourself

Cat's Claw & Devil's Claw Strawberry Flavor by TerraVita label

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

Cat's Claw & Devil's Claw Strawberry Flavor 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 Cat's Claw & Devil's Claw Strawberry Flavor by TerraVita

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

Serving size25 Drop(s) Dosage formLiquid Servings per container227 Amounts shown are per serving.

Cat's Claw & Devil's Claw Glycerite Liquid Extract

Interacts with
962 drugs
0.13 mL 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 & Devil's Claw Glycerite Liquid Extract monograph & interactions

Other (inactive) ingredients: Glycerin, Strawberry flavor. These complete the product’s ingredient list but are not active constituents.

Interaction report

Cat's Claw & Devil's Claw Strawberry Flavor by TerraVita Drug Interactions

Want to check YOUR meds against Cat's Claw & Devil's Claw Strawberry Flavor?

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.

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1,076Drugs
1,016 Moderate 60 Minor

Ingredients driving the most interactions

Cat's Claw & Devil's Claw Glycerite Liquid Extract 962

Individual Drug Interactions

The ingredients in Cat's Claw & Devil's Claw Strawberry Flavor interact with 1,076 drugs. Click any drug to see the details.

1 of the 1 ingredient in Cat's Claw & Devil's Claw Strawberry Flavor interact with drugs. Each result below shows which ingredient is responsible. Cat's Claw & Devil's Claw Glycerite Liquid Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Cat's Claw & Devil's Claw Strawberry Flavor 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 & Devil's Claw Glycerite Liquid 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 & Devil's Claw Glycerite Liquid Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Cat's Claw & Devil's Claw Strawberry Flavor, from the product label.

TerraVita

See all TerraVita products
Name
ZooScape LLC
Phone Number
844-449-0444
Web Address
www.ZooScape.com
Pharmacist Counseling Corner

Cat's Claw & Devil's Claw Strawberry Flavor by TerraVita: Common Questions

Does Cat's Claw & Devil's Claw Strawberry Flavor by TerraVita interact with any medications?
Yes. Based on its ingredients, Cat's Claw & Devil's Claw Strawberry Flavor has a known interaction with 1,076 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Cat's Claw & Devil's Claw Strawberry Flavor 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 this if I'm on warfarin or another blood thinner?
Not without talking to your pharmacist or doctor first. Devil's claw may theoretically increase the activity of warfarin and raise your bleeding risk — one case report documented a patient who developed bruising while taking both. Other blood thinners and antiplatelet drugs carry a similar Moderate-severity risk with cat's claw. This needs a pharmacist's review of your specific medication.
What side effects should I watch for?
Digestive upset — diarrhea, indigestion, and stomach discomfort — is the most common issue, especially at higher doses. Allergic skin reactions, headache, and loss of taste have also been reported. Rarely, gastrointestinal bleeding has occurred. Stop and contact your doctor if you notice any unusual bleeding or severe stomach pain.
Is this safe to take during pregnancy or while breastfeeding?
No. Devil's claw should be avoided during pregnancy because it may affect the uterus and its safety hasn't been established. Cat's claw should be avoided because it was traditionally used as an abortifacient and safety data is lacking. Both ingredients should be avoided while breastfeeding due to insufficient safety information. Talk to your doctor about safer options.
Does this actually work for back pain?
Devil's claw is rated possibly effective for back pain and osteoarthritis based on our data, meaning there's some evidence but it's not definitive. Cat's claw hasn't shown sufficient reliable evidence in our data for the conditions it's been studied in. Results vary from person to person, so discuss realistic expectations with your pharmacist.
Can this interfere with my other medications?
Yes — both ingredients have documented interactions with multiple drug types, including blood thinners, blood-pressure medicines, stomach-acid medications, and drugs your liver processes using certain enzymes. Use the medication search tool on this page to check your exact medications before you start, or ask your pharmacist to review them.
What are glycerite extracts?
A glycerite is an herbal extract dissolved in glycerin instead of alcohol. It's a gentler liquid form that's often easier on the digestive system. In this product, both devil's claw and cat's claw are delivered as glycerite extracts and flavored with strawberry.

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

Not sure if Cat's Claw & Devil's Claw Strawberry Flavor 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.

Cat's Claw & Devil's Claw Strawberry Flavor label
Go deeper

The Full Monographs Behind Cat's Claw & Devil's Claw Strawberry Flavor’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 → Herb & supplement monograph

Devil's Claw

Interacts with 804 drugs

Devil's claw is a southern African plant used mainly for arthritis and back pain, and some studies suggest it may help ease these types of discomfort. The evidence is moderate at best, and p...

Read the full Devil's Claw monograph →
Sources

Sources & How We Checked

Cat's Claw & Devil's Claw Strawberry Flavor'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 34 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.

Devil's Claw 18 references
  1. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  2. Shaw D, Leon C, Kolev S, Murray V. Traditional remedies and food supplements: a 5-year toxicological study (1991-1995). Drug Saf 1997;17:342-56.
  3. Chantre P, Cappelaere A, Leblan D, et al. Efficacy and tolerance or Harpagophytum procumbens versus diacerhein in treatment of osteoarthritis. Phytomedicine 2000;7:177-83.
  4. Chrubasik S, Thanner J, Kunzel O, et al. Comparison of outcome measures during treatment with the proprietary Harpagophytum extract doloteffin in patients with pain in the lower back, knee or hip. Phytomedicine 2002;9:181-94. PubMed
  5. Circosta C, Occhiuto F, Ragusa S, et al. A drug used in traditional medicine: Harpagophytum procumbens DC. II. Cardiovascular activity. J Ethnopharmacol 1984;11:259-74. PubMed
  6. Grahame R, Robinson BV. Devils's claw (Harpagophytum procumbens): pharmacological and clinical studies. Ann Rheum Dis 1981;40:632. PubMed
  7. Unger M, Frank A. Simultaneous determination of the inhibitory potency of herbal extracts on the activity of six major cytochrome P450 enzymes using liquid chromatography/mass spectrometry and automated online extraction. Rapid Commun Mass Spectrom 2004;1 PubMed
  8. Wegener T, Lupke NP. Treatment of patients with arthrosis of hip or knee with an aqueous extract of devil's claw (Harpagophytum procumbens DC). Phytother Res 2003;17:1165-72.
  9. Chrubasik S, Kunzel O, Thanner J, et al. A 1-year follow-up after a pilot study with Doloteffin for low back pain. Phytomedicine 2005;12:1-9. PubMed
  10. Romiti N, Tramonti G, Corti A, Chieli E. Effects of Devil's Claw (Harpagophytum procumbens) on the multidrug transporter ABCB1/P-glycoprotein. Phytomedicine 2009;16:1095-100. PubMed
  11. Chrubasik, S., Junck, H., Breitschwerdt, H., Conradt, C., and Zappe, H. Effectiveness of Harpagophytum extract WS 1531 in the treatment of exacerbation of low back pain: a randomized, placebo-controlled, double- blind study. Eur.J Anaesthesiol. 1999;16(2 DOI
  12. Laudahn, D. and Walper, A. Efficacy and tolerance of Harpagophytum extract LI 174 in patients with chronic non-radicular back pain. Phytother.Res. 2001;15(7):621-624.
  13. Belaiche P. Etude clinique de 630 cas d'artrose traites par le nebulisat aqueux d'Harpagophytum procumbens (Radix). Phytotherapy 1982;1:22-28.
  14. Chrubasik S, Model A, Black A, and et al. A randomized double-blind pilot study comparing Doloteffin® and Vioxx® in the treatment of low back pain. Rheumatology 2003;42:141-148.
  15. Cuspidi C, Sala C, Tadic M, et al. Systemic hypertension induced by Harpagophytum procumbens (devil's claw): a case report. J Clin Hypertens (Greenwich) 2015;17(11):908-10.
  16. Mahomed IM, Ojewole JAO. Oxytocin-like effect of Harpagophytum procumbens [Pedaliacae] secondary root aqueous extract on rat isolated uterus. Afr J Trad CAM 2006;3(1):82-89.
  17. Carvalho RR, Donadel CD, Cortez AF, Valviesse VR, Vianna PF, Correa BB. J Bras Nefrol. 2017 Mar;39(1):79-81.
  18. Anon. Devil's claw root: ulcers and gastrointestinal bleeding. Prescrire Int 2013;22(144):296.

See these in context on the Devil's Claw monograph →

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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