Tylenol PM Extra Strength Nighttime Pain Reliever and Sleep Aid Caplets help relieve minor aches and pains and help you fall asleep fast for a more restful sleep. This nighttime pain relief medicine provides 500 mg of acetaminophen and 25 mg of diphenhydramine hydrochloride in each caplet. Both a pain reliever and non-habit forming sleep aid, it is formulated to help you fall asleep and stay asleep while also relieving fever and minor aches and pain. It can be used by adults and children 12 years and older, and is non-habit forming when used as directed.