According to a case study published by the Manitoba government website, Presley's physician, Dr. George Nichopoulos, admitted to prescribing the singer a wide range of drugs to get him through the day; in any one week prior to a concert, the King would be administered a "protocol program" of around 680 pills and a range of liquid medicines including "amphetamines, depressants, and painkillers" to get him through rehearsals and the show itself.

READ MORE of this fascinating story here