Pharmacology General 003de2a3 Centrally acting muscle relaxant with α2 - adrenergic agonist activity is A Chlorzoxazone B Baclofen C Tizanidine D Pirenzepine High-Yield Explanation Tizanidine is a centrally acting muscle relaxant with α2 - adrenergic activity, but unlike clonidine it has no effect on blood pressure.