procainamide

noun
pro·​cain·​amide | \ (ˌ)prō-ˈkān-ə-ˌmīd How to pronounce procainamide (audio) , -məd; -ˌkān-ˈam-əd How to pronounce procainamide (audio) \

Medical Definition of procainamide

: a base of an amide related to procaine that is used in the form of its hydrochloride C13H21N3O·HCl as a cardiac depressant especially in the treatment of ventricular and atrial arrhythmias — see pronestyl