Herbazest - Cat's Claw - An in-depth explanation on the herb's active compounds, medicinal applications, and how to consume it. Wikipedia: Cat's Claw - Article covering the herb's taxonomy, and medical uses. University of Maryland Medical Center - Provides an overview, precautions, and possible interactions with cat's claw. Supporting research is also available. NCCIH - Cat's Claw - Displays an introduction as well as the side effects involved with this herb. NewCROP - Uncaria tomentosa - Summary containing the uses, taxonomy and ecology involved with this herb. References included. Calphotos: Cat's Claw - Photographs of this herb. Herbwisdom.com - Cat's Claw - Herb's benefits and side effects. Sloan-Kettering - Cat's Claw - Includes information on uses, constituents and mechanism of action. Loyola Medicine: Cat's Claw - Factsheet including warnings, side effects and interactions. Diagnose me - Cat's Claw - Instructions, side effects and why is it recommended.