Oh no, definately not. Formalin baths are good for clowns because of brook. (Kind of a dangerous med, but still highly recommended for WC clown).
Otherwise, a dewormer (Pipzine) and 4-6 weeks in hypo will clean up most fish. The PraziPro is for urgent or stubborn parasite removal (fish won't survive long enough for hypo to work or for worms that Pipzine doesn't take out). BUT -- it can kill anthias. That, I know from experience

So I would approach PraziPro with caution until it gets a little more exposure in the marine fish industry.
Furan-2 or Maracyn or other antibiotics are for bacterial infections, and are the easiest drugs to find since they are in just about every PetSmart and Petco.
Copper for ick - but I personally don't care for it; too finicky and dangerous when hypo will work just as well.
Virus' (lymphocystis) you can't treat except with good conditions, of course; true fungus' are very rare in salt water fish.
Do go back through the thread -- generic prophylactic care has been discussed.