<prompt> All of the following drugs are metabolised by acetylation exceptINHSulfonamidesKetoconazoleHydralazine  <response>: Ans. is c i.e. Ketoconazole Drugs undergoing Acetylation-SulfonamidesIsoniazidPASHydralazineProcainamideAlso knowDrugs undergoing glucuronide conjugationChloramphenicolAspirinPhenacetinMorphineMetronidazoleDrugs undergoing Glycine conjugationSalicylates andOther drugs with Carboxyl groupDrugs undergoing Glutathione conjugationParacetamol. 