[NONUSER]

ROUND/WHITE/512/ ????

If this is it:
http://media.cornerdrugstore.com/dru...7/acet009g.jpg

With 512 on one side and scored on the reverse, then it is:
Acetaminophen 325mg/Oxycodone 5mg

ACETAMINOPHEN-OXYCODONE (Percocet(R), Roxicet(R), Tylox(R), Roxilox(R)) is a combination of two different types of pain medicine and is used to treat moderate to severe pain.