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Medications and Drugs

Brand Names:

Generic Name: cat's claw (Pronunciation: CATS CLAW)

What is cat's claw ()?

Cat's claw is also known as Uncaria tomentosa, Uncaria guianensis, life-giving vine of Peru, samento, and una de gato.

Cat's claw has been used in alternative medicine as an aid to treat infections, stomach or intestinal disorders, cancer, arthritis, asthma, hay fever, and chronic fatigue syndrome. Cat's claw has also been used to support the immune system and promote kidney health, and as a contraceptive.

Not all uses for cat's claw have been approved by the FDA. Cat's claw should not be used in place of medication prescribed for you by your doctor.

Cat's claw is often sold as an herbal supplement. There are no regulated manufacturing standards in place for many herbal compounds and some marketed supplements have been found to be contaminated with toxic metals or other drugs. Herbal/health supplements should be purchased from a reliable source to minimize the risk of contamination.

Cat's claw may also be used for purposes not listed in this product guide.

What are the possible side effects of cat's claw ()?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Less serious side effects may include:

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about cat's claw ()?

Not all uses for cat's claw have been approved by the FDA. Cat's claw should not be used in place of medication prescribed for you by your doctor.

Cat's claw is often sold as an herbal supplement. There are no regulated manufacturing standards in place for many herbal compounds and some marketed supplements have been found to be contaminated with toxic metals or other drugs. Herbal/health supplements should be purchased from a reliable source to minimize the risk of contamination.

Use cat's claw as directed on the label, or as your healthcare provider has prescribed. Do not use this product in larger amounts or for longer than recommended.



Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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