To my fellow Bluenoser; I'd never try this but if you're Hell Bent on getting some Mexican gear, here's a trick that may work. (This was divulged by an ol' friend, not my idea) . Clean out an old Suntan lotion bottle. (Maybe boil it in a pot of water to possibly sterilize). Transfer any Oil-based injectable into the empty bottle.
Of course this would obviously only be for personal use. You could of course transfer to sterile vials upon your return.
Or you could just drink Tequila and Margarita's the whole week , eat whatever you want, get a nice tan and admire all the

Titties and Ass on the beach

. Then when you get home , find a Domestic source for your gear and live happily ever after.
The End