If you blowtorch Pepto-Bismol, you would get a hunk of metal

Bismuth subsalicylate is the active ingredient in Pepto-Bismol. It has the disctinction of being the only over the counter medication that will leave a metal oxide slag after being burnt with a blow torch. We put this squarely in the do not try this at home category, no matter how shiny it is.

(Source) 

Bonus: We couldn't find a video of people actually blowtorching Pepto Bismol, but here's a safer way to get metal out of a few tablets