Recommended the most by doctors and used the most by hospitals. Active Ingredients: Per Caplet: Acetaminophen 650 mg Inactive Ingredients: Carnauba Wax; Corn Starch; Hydroxyethyl Cellulose; Hypromellose; Magnesium Stearate; Microcrystalline Cellulose; Povidone; Powdered Cellulose; Pregelatinized Starch; Sodium Starch Glycolate; Titanium Dioxide; Triacetin Uses: Temporarily relieves minor aches and pains due to: arthritis; the common cold; headache; toothache; muscular aches; backache; menstrual cramps. Push and turn cap. What makes Tylenol Arthritis Pain Extended Relief Caplets different? Uses a unique patented bi-layer caplet. The first layer dissolves quickly to provide prompt relief while the second layer is time released to provide up to 8 hours of relief.