Cat’s Claw


There’s no conclusive scientific evidence based on studies in people that support using a cat’s claw for any health purpose.

Side Effects Of Cat’s Claw

It appears to be safe when used orally for short periods of time. However, it can cause headaches, dizziness, and vomiting in some people.

It might make the immune system more active, which could increase symptoms of autoimmune diseases. If you have an autoimmune disease, consult your health care provider before using it.

Little is known about whether it’s safe to use during pregnancy or while breastfeeding.

Cat’s claw may interact with some medications, including some HIV drugs called protease inhibitors. If you take medication, talk with your health care provider before using.

It may lower blood pressure and slow blood clotting. Talk to your health care provider if either of these effects might be a concern for you.


Take charge of your health—talk with your health care providers about any complementary health approaches you use. Together, you can make shared, well-informed decisions.


All information has been provided courtesy of MedLinePlus from the National Library of Medicine and from the FDA.