dont try bringing anything back. I have a timeshare in cancun and vacation there once a year. When you arrive back in the states, customs will randomly select people to search. Out of the 7 times Ive visited Cancun, I have been searched 3 times. When i say that they searched me, I mean that they searched me. They went through everything, opened every container, yes, even my advil bottle. Luckily I had nothing on me every time. Trying to bring stuff back with you, whether it be just clomid or something simple like that, its like playing russian roulette.