Most modern medicines are carefully synthesized organic molecules so potent that each pill contains only a few milligrams of the active ingredient. Pepto-Bismol is a fascinating exception, both because its active ingredient is bismuth, a heavy metal commonly used in shotgun pellets, and because there is a lot of it in each dose. So much, in fact, that I was able to extract a slug of bismuth metal from a pile of pink pills.
Being a mad scientist can be a thankless job, but every once in a while you get a chance to shine—literally. I recently had that opportunity when working with a TV show to film one of the most beautiful of all chemical phenomena, the cold luminosity of white phosphorus.