All APC powders including Bex and Vincent's were banned in Australia in 1977, they caused so much kidney damage to users that there were not enough dialysis machines available to cope!
I remember going to work in Fairfield Sydney in the early 70's and stopping at the Commercial Hotel to get a pack of ciggies every morning, they were cheaper there, all the old winos who mainly wore business suits were at the bar drinking shots of fortified wine 40% proof by volume, they would be shaking so much it was served in middie glasses, they used to shake so much they would spill it everywhere, but without fail each and everyone of em had 4 or 5 empty APC papers on the bar next to them, Bex powders were lethal, but it taught me one thing that I have stuck by all my adult life, never drink alcohol before noon, weekends included, only breaking that rule if we had to finish off a keg by noon, from the party the night before!
PS- If you were late back with the keg and glasses, you forfeited your deposit, you never sent em back with beer in em!