It depends on the site. There are some reasonable, legit places to order drugs online, but there are also quite a few that are nothing more than scams. I haven't personally ordered anything like that online, but I have a friend who has a script for Adderall which he orders online because it's much cheaper. I'd say look around, and if you find a site that you really believe is legit, go for it. If the site requires that you have a prescription, there's a good chance it's the real deal, just be careful and use good judgment. Or perhaps someone here has ordered meds online before and knows a good source...sorry I can't be of more help.