My girlfriend gave me this pill for a toothache and I can't seem to find out what it is. It's a little round blue pill with a breaktab on one side and some sort of imprint on the other. Maybe an 8 or 0. Anyways.. I'm sure she didn't give me any crazy type of drug, but before I take it I'd like to know what it is. Please help me out here... my tooth is KILLING me.