Cat’s claw is a plant. Two species of cat’s claw, Uncaria tomentosa and Uncaria guianensis, are of primary interest for use as medicine. Uncaria tomentosa is most commonly used in the U.S., and Uncaria guianensis is typically used in Europe. Medicine is made from the root and bark. Cat’s claw was ranked as the seventh most popular herb in U.S. sales in 1997. Be careful not to confuse cat’s claw with cat’s foot.
It is also used for various digestive system disorders including swelling and pain (inflammation) of the large intestine (diverticulitis), inflammation of the lower bowel (colitis), inflammation of the lining of the stomach (gastritis), stomach ulcers,hemorrhoids, and leaky bowel syndrome.
Cat’s claw is also used for chronic fatigue syndrome (CFS), wound healing, parasites, Alzheimer’s disease, asthma, hay fever, cancer (especially urinary tractcancer), a particular type of brain cancer called glioblastoma, gonorrhea, dysentery,birth control, bone pains, and “cleansing” the kidneys.