My Bro has been doing this for years! You can bring back less than 50 dosages without a prescription. He also confirmed it MUST be Human and not vet! Just don't get caught in US with them. I have always thought he was crazy doing it, but he declares them and never had an issue. He said to not bring back redijects because you can not bring enough to make it worth your while. His comment was to bring vials as 50 dosages can be more ml.