http://tharacing.com/rmtc-issues-advisory-on-use-of-harpagoside-derived-from-devils-claw-plant/ Share Posted: Dec. 14, 2020 Harpagoside is a glycoside derived from the Devil’s Claw plant (Harpagophytum procumbens). It is a non-steroidal anti-inflammatory drug that inhibits COX-1 and COX-2, similar to phenylbutazone. There are no FDA-approved harpagoside-containing products. To the extent that Devil’s Claw