One side has a "U" and the other has "45" This is a small round pill and is supposed to be Hydromorhone 4mg and the bottle says the manufacturer is "Auro," which I believe is for Aurobindo Pharmacuticals USA
Added 11 Dec 2017:
Thanks again Masso. Please disregard my last post. Under LED lighting the pill looked white but it is in fact yellow!
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