<prompt> Drugs undergoing acetylation include all except:DapsoneMetoclopramideProcainamideINH  <response>: Ans. B. MetoclopramideAcetylation by N-acetyl transferases NATe.g, S - SulfonamidesH - HydralazineI - IsoniazidP - Procainamide, PASD - DapsoneC - Clonazepam, Caffeine 