It is "aspirin" for those allergic to aspirin (more or less).
Acetamenophine is an analgesic drug, used to treat headaches, arthritis, etc., and also to reduce fever, often as an alternative to aspirin
Sure. Oxycodone and Acetaminophin (Tylenol) is known as Percocet. Oxycodone is prescribe by itself in the normal dosage that is in Percocet: 2.5, 5, 7.5 and 10mg tablets. Doctors usually prescribe the combination drugs like Percocet or Percodan (Oxy with Aspirin) because the combination of the two work better at reducing inflammation, which gives the Oxy a better chance to relieve pain.