Pryor was DEAD tired at the end of the round. The Hawk came out fresh like it was the first round. He was definitely given something.
Lewis also used to dissolve some kind of pills that were meant to treat asthma into water and give it to his fighters between rounds to increase lung capacity......allegedly. Luis Resto accused him of that. If it looks like Lewis was doing something wrong, you can probably just go ahead and assume he was. If there was a Mount Rushmore of boxing scumbags, Lewis would be assured a spot.
Smelling salts were legal, then became illegal. I definitely remember seeing them still being used as late as the 1980s.