Description: Oval white pill indexed with "M523" on one side and 10 / 325 on the other Active Ingredients: Oxycodone hydrochloride / Acetaminophen Strength: 10mg / 325mg Manufacturer: Mallinckrodt Pharmaceuticals Available Brand Names: Percocet, Endocet, Tylox

M523 pill is a generic version for name brand Percocet manufatured by Mallinckrodt Pharmaceuticals. Percocet is a compound pain reliever that consists of Acetaminophen (Paracetamol) combined with Oxycodone hydrochloride.

Oxycodone hydrochloride is an opioid pain reliever closely related to morphine. Acetaminophen is an analgesic (a pain reliever) and an antipyretic (a fever reducer) which strengthens analgetic effects of Oxycodone.

Each M523 pill contains 325 mg of Acetaminophen and 10 mg of Oxycodone hydrochloride.

Mallinckrodt pills with "M523" index are used to relieve moderate to severe pain.