<prompt> All are metabolized by acetylation, EXCEPTHydralazineINHProcainamideChlorpromazine  <response>: Ans. is d i.e., Chlorpromazine Drugs undergoing Acetylation-SulfonamidesIsoniazidPASHydralazineProcainamideAlso knowDrugs undergoing glucuronide conjugationChloramphenicolAspirinPhenacetinMorphineMetronidazoleDrugs undergoing Glycine conjugationSalicylates andOther drugs with Carboxyl groupDrugs undergoing Glutathione conjugationParacetamol 