Norco 539 (Hydrocodone 10/325mg) mg, Tablets for Oral Administration
Hydrocodone bitartrate and acetaminophen supplied in tablet form for oral administration.
Hydrocodone bitartrate is an opioid analgesic and antitussive and occurs as fine, white crystals or as a crystalline powder. It is affected by light. The chemical name is 4,5α-Epoxy-3-methoxy-17-methylmorphinan-6-one tartrate (1:1) hydrate (2:5). It has the following structural formula:
Acetaminophen, 4´-hydroxy acetanilide, a slightly bitter, white, odourless, crystalline powder, is a nonopiate, non-salicylate analgesic and antipyretic. It has the following structural formula:
NORCO®, for oral administration, is available in the following strengths: