Compare to the active ingredients of Extra Strength Tylenol PM Caplets. Don't settle for a sleepless night because of pain. GoodSense Acetaminophen PM caplets offer extra strength relief for occasional headaches, minor aches and pains plus make it easier to fall asleep. The active ingredients are acetaminophen 500 mg (pain reliever) and diphenhydramine HCl 25 mg (nighttime sleep-aid). Easy-to-swallow caplets are non-habit forming. Extra strength relief of aches, pains and sleeplessness for adults and children 12 years and over. Children under 12 years: do not use. This product is free of aspirin and gluten. Features a child-resistant cap. Do not use with other medicines containing acetaminophen.