I bought some 40 mg oxy from overseas, Sandoz brand. The pills are unmarked / not imprinted and have a yellow coating (inside is white). I've seen these sold online in several places but can't find any information on them. I know that in the U.S., all prescription pills are required to be imprinted and unique so that they can easily be identified. Does anyone know about these? Just wondering if I should rule them from being legit because they are not imprinted.