It is small, white, and round. One side is blank. The other side has "10" on the lower half and some kind of symbol on the upper half. The symbol has 3 parts. When looking at the pill, on the left is a vertical line slightly curved to the right; a dot is to the upper right of the line; below the dot is what I can only describe as a sideways shark fin that is going towards the '10'. At first glance I thought is was Asian symbol. Found this in my son's room if anyone can help, thank you.