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Cat's Claw

Medically reviewed by Drugs.com. Last updated on May 1, 2019.

What are other common names?

  • Uncaria guianensis
  • Uncaria tomentosa
  • C-Med 100
  • Cat's Claw
  • Cortex Uncariae
  • Life-Giving Vine of Peru
  • Reparagen
  • Samento
  • Uña de Gato

What is this product used for?

Cat's claw is used by some people as medicine. Science does not support the use of this product for any health problem.

What are the precautions when taking this product?

  • Always check with your doctor before you use a natural product. Some products may not mix well with other drugs or natural products.

  • This product may interfere with some lab tests. Be sure to talk with your doctor about this and all drugs you are taking.

  • Be sure to tell your doctor that you take this product if you are scheduled for surgery or tests.

  • Do not use this product if you are pregnant or plan to become pregnant soon. Use birth control you can trust while taking this product.

  • Take extra care if you are taking drugs for blood pressure. These are drugs like atenolol (Tenormin), captopril (Capoten), furosemide (Lasix), and losartan (Cozaar).

  • Take extra care if you are taking drugs to thin your blood. These are drugs like warfarin (Coumadin), heparin, or enoxaparin (Lovenox).

  • Take extra care if you are taking drugs to dissolve blood clots. These are drugs like alteplase (Activase), reteplase (Retevase), or streptokinase.

  • Take extra care if you are taking drugs to help with swelling or inflammation. These are drugs like nonsteroidal anti-inflammatory drugs (NSAIDs), aspirin, ibuprofen (Advil), or naproxen (Naprosyn).

  • Take extra care if you are at a high risk for infection. This includes people who have had a transplant, are on chemo, or have an autoimmune disease.

  • You may bleed easily. Be careful to avoid injury. Use a soft toothbrush and an electric razor.

  • Take extra care and check with your doctor if you have:

    • Bleeding problems

    • Blood pressure problems

    • Cancer

What should I watch for?

  • Upset stomach

  • Stomach cramps

When do I need to call the doctor?

  • Signs of a very bad reaction. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; seizures; or swelling of face, lips, tongue, or throat. Go to the ER right away.

  • Signs of low blood pressure. These include feeling dizzy, weak, or tired; fainting; more thirst; or skin that is pale, cool, and clammy.

  • Very bad throwing up

  • Very bad belly pain

  • Very bad loose stools

  • Very bad headache

  • Blood in stool or throwing up blood

  • Bruising or bleeding that is not normal

  • Changes in menstrual periods like lots of bleeding, spotting, or bleeding between cycles.

Where can I learn more?

National Center for Complementary and Integrative Health

https://nccih.nih.gov/health/catclaw

Last Reviewed Date

2018-04-23

Consumer information use

This information is not specific medical advice and does not replace information you receive from your healthcare provider. Only your healthcare provider has the knowledge and training to provide advice that is right for you. You should not rely on this information in deciding whether or not to use, or accept your healthcare provider’s advice regarding use of, any natural products or similar treatments, therapies, or life-style choices. This information does not endorse any natural products or similar treatments, therapies, or life-style choices as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information. It does NOT include all information about natural products, possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to you. You must talk with your healthcare provider for complete information about your health and treatment options.

Copyright

Copyright © 2018 Wolters Kluwer Clinical Drug Information, Inc. and its affiliates and/or licensors. All rights reserved.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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