Tylenol Extra Strength pain reliever works fast on your headache and won't irritate your stomach lining the way that aspirin, naproxen sodium, or even ibuprofen can. Made with acetaminophen, Tylenol Extra Strength is also indicated to reduce fever and for the temporary relief of minor aches and pains caused by the common cold, backache, minor pain of arthritis, toothache, muscular aches and premenstrual and menstrual cramps. Single-dose packs of Tylenol Extra Strength come in a dispenser box that is specially designed to refill Lil' Drugstore Dispensers.