Out-of-network benefits â benefits provided under a health care benefits plan for services or supplies provided by doctors and other health care professionals who are not parties to a contract with a UnitedHealth Group affiliate.
Over-the-counter. Naproxen is used to temporarily reduce fever, as well as treat minor aches and pains due to: 1  minor pain of arthritis. 2  menstrual cramps. 3  the common cold. 4  muscular aches. 5  headache. 6  backache. 7  toothache.
Naproxen, like other NSAIDs, works to decrease swelling and to inhibit pain sensations. Naproxen reduces hormones that cause inflammation and chronic pain. The exact way it works is not completely understood. However, researchers believe it plays a role in inhibiting a substance called prostaglandin, which is associated with pain.