Gentian violet another purple that is used for skin ailments I still keep it in the cupboard, messy to work with...

Condy crystal I remember being used for leafy vegetables, a few granules in a big tub, over the years my parents used course salt more than the crystals. Perhaps more was found out about the crystals, I have not seen them in many years.

Remember in Grandma's time opioids were taken mixed with alcohol for migraines and the like, who knows what they did not test drive before enforcement arrived 😆