Can anyone help me identify this pill that I found while cleaning out my grandmothers old house, they were in a small glass vial/bottle that just said take one at bedtime for sleep. The pills are small, round, light blue and say McNeil on one side and are scored on the other side. There are no numbers or anything else imprinted on the pill. I can tell they are really old just by looking at the bottle they came in, and I haven't been able to find any information as to what they could possibly be so I am hoping someone might be able to help me out! Thanks!!