VCHSR

VCHSR is a drug used in scientific research which acts as a selective antagonist of the cannabinoid receptor CB₁. It is derived from the widely used CB₁ antagonist rimonabant, and has similar potency and selectivity for the CB₁ receptor, but has been modified to remove the hydrogen bonding capability in the C-3 substituent region, which removes the inverse agonist effect that rimonabant produces at high doses, so that VCHSR instead acts as a neutral antagonist, blocking the receptor but producing no physiological effect of its own.