How Cat's Claw interacts with Immune globulins

Interaction type: Interactions

Interaction rating: Potential/Theoritical

Studies have reported that cat's claw stimulates our immune system which may alter the effects of these medications and possibly the dose needed for treatment. Use with caution. (1)

These drugs include Hepatitis B Immune Globulin (HBIG), Tetanus Immune Globulin (TIG), Varicella-Zoster Immune Globulin (VZIG), Immune Globulin (IGIM or IGIV), Cytomegalovirus Immune Globulin (CMV-IGIV), Lymphocyte Immune Globulin, Antithymocyte Globulin (ATG equine or ATG rabbit), Rabies Immune Globulin (RIG), Respiratory Syncytial Virus Immune Globulin (RSV-IGIV), Rho(D) Immune Globulin (Rho[D] IGIM, Rho[D] IGIV or Rho[D] IG Micro-dose)


  1. Wagner H, et al. The Alkaloids of Uncaria tomentosa and Their Phagocytosis-stimulating Action. Planta Med. 1995;5:419-23.