<prompt> Drug not causing exanthematous skin eruption -PhenytoinHydrocortisoneAmpicillinPhenylbutazone  <response>: Ans is b i.e., Hydrocortisone Drugs causing exanthematic reactionsMost commonLess commonAmpicillin and penicillinCephalosporinsPhenylbutazone and other pyrazolonesBarbituratesSulphonamidesThiazidesPhenytoinNaproxenCarbamazepineIsoniazidGoldPhenothiazinesGentamicinQuinidineMeprobamate Atropine 