What is 54 543 Pill? The pill with imprint 54 543 is White, Round, and has been identified as Acetaminophen and Oxycodone Hydrochloride 325 mg / 5 mg. It is supplied by Roxane Laboratories, Inc. Acetaminophen/oxycodone is used in the treatment of chronic pain; pain and belongs to the drug class narcotic analgesic combinations. Risk […]