I found a keychain pill box in the sand at the park today and was curious to see if there was anything, and there were two pink round EMTEC 30's, which I knew to be generic codeine with acetaminophen, but there was another round pale blue pill with a piece missing, it seems to be the same size as the codeine pill if it was whole, and one side has nothing on it, but the other side has a score, and 30 is written bellow the score line, and above I can see an A and what seems to be a T but I can't be sure because that's where the pill cuts off. Anyone have a clue what it could be? I thought maybe it was codeine as well but from a different company?