the grounds of Graceland and monitored Elvis's drug consumption. The 14 drugs in his system upon death? Glad you asked . These are; Codeine , Morphine , Quaalude , Valium , Diazepam, Placidyl , Amytal , Nembutal , Carbrital, Demerol , Sinutab , Elavil , Avental and Valmid . That's quite