I found these two pills in my house and I have no idea where they came from or what they are. They certainly on't look like OTC pills, and I don't think they are from any prescription I've ever had.

They are capsule shaped and translucently coated half red and half orange. In between the coating there is a thin strip of the white pill underneath showing through. They are imprinted on the orange half on one side with a G, and on the other side with a 5.

Does anyone have a clue what these are? My digital camera's batteries are dead, so I had to snap this pic with an old web cam, sorry for the poor image quality. Here is the link: