[dencdm]

These were bought in Mexico. Suppose to be Percocet.

[Cats Meow]

In Mexico the sell what's called Neo-Percodan, it's not Percodan or Percocet or have Oxycodone in it, it's probably a decongestant. If it were truly Percocet it would be imprinted.
But the ones I've seen were round/white/un-imprinted with a rough surface, not in capsule form.

Here's my standard copy and paste reply:
Sorry, there's no way to ID a pill without an imprint. All Rx and OTC drugs in the US are required by law to have an imprint, otherwise it could be a vitamin, herbal, energy, diet, foreign or illicit, even candy.