Round White Pill Has A 11 On Quarter Of It

Round yellow pill 115 / R

I found a pill on the floor of my house and have not been able to identify it with any of my current prescriptions. It is about a quarter of a dime in size, light yellow, with an 'R' inscribed on one side and '115' inscribed on the other. I found some posts online about codeine having these inscriptions on a white pill, but I want to be sure of what it is before I would consider using it for a an unpleasant cough or cold.

Filed under Codeine