Is there another example where a bad drug or toxin is used as a cure aside from botulism?
There are countless such examples. Here are a few: -Digitalis toxin used to treat heart failure. -Curare (used by natives to make poison darts) used with anesthesia to temporarily paralyze a patient for surgery. -Belladonna mushroom extract used to treat migraines. -Cocaine used for nosebleeds and local anesthesia. Most drugs are toxic at some level and by certain delivery methods. It’s how they are used that makes them safe or dangerous.