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  • Basic Info
Licensed from
Generic: cat's claw
an herbal product - treats Anti-inflammatory, Immune stimulant, Knee pain from osteoarthritis, Allergies, and Cancer

To get info about second drug, type a name above.

Alternate Title

Alternate Title

Uncaria guianensis, Uncaria tomentosa


Herbs & Supplements


Ammonia treated quinic acid (QAA), ancajsillo Ancajsillo, ancayacu, aublet, auri huasca, bejuco de agua, cat's claw inner bark extract, C- Med- 100®, deixa paraguayo, gambir, garabato, garabato amarillo, garabato blanco, garbato casha, garbato colorado, garbato gavilán, garra gavilán, geissoschizine methyl ether, Gou- Teng, griffe du chat, hawk's claw, jijyuwamyúho, jipotatsa, Krallendorn, kugkuukjagki, life- giving vine of Peru, misho- mentis, mitraphylline, nature's aspirin, Nauclea oculeata, Nauclea tomentosa, Ourouparia guianensis, Ourouparia tomentosa, paotati- mösha, paraguaya, Peruvian cat's claw, pole catechu, popokainangra, quinic acid (QA), radix Uncariae tomentosae (Willd.), rangayo, Rubiaceae (family), samento, tambor hausca, tomcat's claw, torõn, tsachik, tua juncara, Uncaria guianensis, Uncaria tomentosa, uña de gato, uña de gato de altura, uña de gato del bajo, uña de gavilán, uña a huasca, Uncaria guianensis, Uncaria tomentosa, unganangi, unganangui, un huasca, UT extract, UTE, vegicaps.

There are 34 Unicaria species other than Uncaria tomentosa.


Originally found in Peru, the use of cat's claw (Uncaria tomentosa) has been said to date back to the Inca civilization, possibly as far back as 2,000 years. It has been used for birth control, as an anti- inflammatory, an immunostimulant, for cancer, and as an antiviral. The Peruvian Ashaninka priests considered cat's claw (Uncaria tomentosa) to have great powers and life- giving properties and therefore used it to ward off disease.

Multiple plant species are marketed under the name cat's claw, the most common being Uncaria tomentosa and Uncaria guianensis. Both are used to treat the same indications, although supposedly the former may be a more efficacious immunostimulant.

Cat's claw (Uncaria tomentosa) may be contaminated with other Uncaria species, including Uncaria rhynchophylla (used in Chinese herbal preparations under the name Gou- Teng), which purportedly may lower blood pressure, lower heart rate, or act as a neuroinhibitor. Reports exist of a potentially toxic Texan grown plant, Acacia gregii, being substituted for cat's claw in commercial preparations.

In Germany and Austria, cat's claw is a registered pharmaceutical and can only be dispensed with a prescription. Today, cat's claw is widely used and is one of the top herbal remedies sold in the United States despite a lack of high quality human evidence.

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