Crazyness pretty much listed them all. I've used prazi pro, and melafix. Prazi pro worked great on my retic. 3 days after treatment they started eating like bigs. Melafix was meant for my ID shark but my rays were in the tank. Also, salt works really good too, though it may not be considered a medication. Whatever you just make sure to read the directions. Some of the meds are suppose to be used by themselves, for example prazi pro stats not to use any other medication with it. When I treat with prazi pro I do add salt.
Nice link Beun. Too bad that cannot be made a sticky.