Aleve (naproxen) is a nonsteroidal anti-inflammatory drug (NSAID). Naproxen works by reducing hormones that cause inflammation and pain in the body.
Aleve is used to temporarily relieve minor aches and pains due to arthritis, muscular aches, backache, menstrual cramps, headache, toothache, and the common cold. Aleve is also used to temporarily reduce fever.
You should not use Aleve if you have a history of allergic reaction to aspirin or other NSAID (nonsteroidal anti-inflammatory drug).