I found some pills at my house after a party, and I have no idea what they are. They're round, maybe the diameter of a dime, pink, and they say "RPI24." (I thought it was 124 at first, but now I think it's the letter "i". I could be wrong.) They have some white flecks on them, kind of the consistency of a TUMS and are individually wrapped in plastic squares. Anyone have any ideas?