512 (Acetaminophen and Oxycodone Hydrochloride 325 mg / 5 mg) Pill with imprint 512 is White, Round and has been identified as Acetaminophen and Oxycodone Hydrochloride 325 mg / 5 mg. It is supplied by Mallinckrodt Pharmaceuticals. Oxycodone 512 is 5mg OxyCodone and 325mg Tylenol together. It is a very powerful pain relever, to compare it to morphine 5mg oxycodone = (5*1.5 =) 7.5mg morphine, roughly. It depends a lot on the person but the 512 Percocet is 5mg oxycodone/325 mg acetaminophen. The lowest dose of Percocet is 5mg so as far as strength these are the lowest available dose. The lowest dose of Percocet is 5mg so as far as strength these are the lowest available dose. Immediate-release oxycodone with paracetamol (acetaminophen) (Percocet, Endocet, Roxicet, Tylox) Immediate-release oxycodone with aspirin (Endodan, Oxycodan, Percodan, Roxiprin) Immediate-release oxycodone with ibuprofen (Combunox) [28] An overdose of Percocet 5/325 can be fatal. The first signs of an acetaminophen overdose include loss of appetite, nausea , vomiting , stomach pain, sweating, and confusion or weakness. Later symptoms may include pain in your upper stomach, dark urine, and yellowing of your skin or the whites of your eyes. Percocet or oxycodone and acetaminophen is a prescription drug used to treat moderate to severe pain. Side effects of may include constipation, drowsiness, nausea, and vomiting. Warnings, drug interactions, dosage, and pregnancy and breastfeeding safety information are provided. Other brand names for oxycodone and acetaminophen include Roxicet. An overdose of acetaminophen and oxycodone can be fatal. The first signs of an acetaminophen overdose include loss of appetite, nausea, vomiting, stomach pain, sweating, and confusion or weakness. Later symptoms may include pain in your upper stomach, dark urine, and yellowing of your skin or the whites of your eyes. How to use Oxycodone-Acetaminophen. See also Warning section. Read the Medication Guide provided by your pharmacist before you start taking oxycodone/acetaminophen and each time you get a refill. Acetaminophen, 4'-hydroxyacetanilide, is a non-opiate, non-salicylate analgesic and antipyretic which occurs as a white, odorless, crystalline powder, possessing a slightly bitter taste. If it is a white round pill with 512 on one side, and a score mark on the other side, that is 5 mg of oxycodone, and 325 mg of acetaminophen. It is a generic form of the brand name drug, percocet.