Experience powerful, 12-hour relief with Leader™ All Day Pain Relief. Each caplet contains 220 mg of Naproxen Sodium, a nonsteroidal anti-inflammatory drug (NSAID) that targets pain at the site of inflammation. This strength is specifically formulated to provide extended relief from tough aches and pains, including minor arthritis pain, muscular aches, backaches, menstrual cramps, headaches, and toothaches, as well as reducing fever. Unlike other pain relievers that require dosing every 4 to 6 hours, Leader™ is designed to last up to 12 hours, allowing you to get through your day or sleep through the night without interruption.