As others have said it's already legal. All you have to do is ask your doc for a script.
Downside is you pay close to $80 for a pack of 4.
It's only illegal to sell under the counter/without a script/pharmacist.

Got some from my mate for $10 a pack of generics. Works just as well imo.
Cut it the 100mg pill in half and you double your bang for buck.