ACTIVE INGREDIENT: The active ingredient in Acetaminophen Extended-Release Tablets is acetaminophen 650 mg, a pain reliever and fever reducer. These tablets are shaped as caplets*. Compare to Tylenol® 8HR active ingredient. (*capsule-shaped tablets)8 HR RELIEF: Don’t let arthritis pain in your joints slow down your lifestyle. Acetaminophen Extended-Release Tablets, 650 mg, are formulated to provide relief of minor arthritis pain relief. Also temporarily relieves minor aches and pains due to: muscular aches; backache; toothache; premenstrual and menstrual cramps; headache; the common cold; and temporarily reduces fever.EXTENDED-RELEASE CAPLETS*: A single dose of Acetaminophen Extended-Release Tablets, 650 mg in each capsule-shaped tablet lasts up to 8 hours as a pain reliever and fever reducer. (*capsule-shaped tablets)NO ASPIRIN: The caplets* (*capsule-shaped tablets) contain no aspirin or gluten and may be used for temporary minor arthritis pain relief.USE for adults and children age 12 years and over. Aspirin free and gluten free. The container features a child-resistant cap. Caplets are tablets in the shape of capsules.