I can't believe you are actually entertaining the idea of doing this... If you get so far as to placing the order the inevtiable "what is your license number?" (or whatever vererinary people get asked when purchasing their meds) question will come in, and then what are you going to say then? "i...i wasn't aware that I needed one?" them - "well you do.... what were you going to use this for?" you - "umm, myself?" them - "click" or "well we'll be forwarding your address to the authorities, thanks for choosing ttokkyo!"
It wont work, so don't bother... They might even get you into trouble, and a whole lot of it...
YUM