Pleaselog inorregisterto add a comment.
TheMAXIMUMthat you can use is: 51.Vitamins give EVs, which a Pokemon can only have 510 of. Also, You cannot use more than 10 of 1 kind of Vitamin per stat. There are 6 Vitamins, meaning there could be 60 uses, but 510 is the maximum.Meaning something like:10 HP up+10 Carbos+10 Protein+10 Zinc+10 Calcium+1 Iron=51 Vitamins
But you cannot:51 HP up10 HP up+10 Carbos+10 Protein+10 Zinc+10 Calcium+10 Iron
You can only use 10 of each kind on one pokemon, and since, you can have a total of 510 total EVs on one pokemon(each drug gives 10 EVs), you could use 8 of each to come out with 480 EVs and put 3 more into different stats. Or 10 in 5 different stats and then add 1 to the last. However you’re question isn’t very specific… Hopefully this helps.
EDIT: and I was beaten to the punch, good answer Mew!