@stevesilver: thanks for the information! Do You have personal experience? on livestock or Yourself?

@Johnny_CockNballs: It shouldn't be a problem to order that online, e.g. http://www.qcsupply.com/qcsupply/bro...ge=subcategory
It's completely legal and You don't have to be a veterinarian to order - and nobody at the customs knows You are planning on using it on Yourself.... ;-)