A pain relief medicine is sold under the brand name, Percocet. This is a combination medicine of two drugs namely Oxycodone and Acetaminophen. It goes under the class of drugs known as opioid analgesics. This is used to treat average to extreme pain. It helps to manage pain from cancer, after surgery pain, or pain from any serious injury. Hydrocodone-acetaminophen was used in 1982 in the USA.