Also, I forgot to mention that we, in the USA, only get the OP's. If you are from Canada, Mexico or Europe You will get the old school OC's (except for Japan) So, if they are legit and say OC on one side and 80 on the other and you know that they aren't fake, then you have the real deal.. Still though, I would stick with either opana's or roxies, but i wouldn't complain too much if I got old school OC's.. The new formulation has an ingredient that has a possible carcinogen it it, hence the reason for mexico and canada not letting the new formula in their country.. Its hard to believe that mexico cares more about their citizens safety than the US..