Naproxen
Overview
 
Naproxen sodium (icon) is a nonsteroidal anti-inflammatory drug (NSAID) commonly used for the reduction of pain
Pain
Pain is an unpleasant sensation often caused by intense or damaging stimuli such as stubbing a toe, burning a finger, putting iodine on a cut, and bumping the "funny bone."...

, fever
Fever
Fever is a common medical sign characterized by an elevation of temperature above the normal range of due to an increase in the body temperature regulatory set-point. This increase in set-point triggers increased muscle tone and shivering.As a person's temperature increases, there is, in...

, inflammation
Inflammation
Inflammation is part of the complex biological response of vascular tissues to harmful stimuli, such as pathogens, damaged cells, or irritants. Inflammation is a protective attempt by the organism to remove the injurious stimuli and to initiate the healing process...

 and stiffness caused by conditions such as:
It is also used for the treatment of primary dysmenorrhea
Dysmenorrhea
Dysmenorrhea is a gynecological medical condition of pain during menstruation that interferes with daily activities, as defined by ACOG and others. Still, dysmenorrhea is often defined simply as menstrual pain, or at least menstrual pain that is excessive...

. It works by inhibiting both the COX-1 and COX-2 enzymes. Naproxen and naproxen sodium are marketed under various trade names, including: Aleve, Anaprox, Antalgin, Feminax Ultra, Flanax, Inza, Midol Extended Relief, Nalgesin, Naposin, Naprelan, Naprogesic, Naprosyn, Narocin, Proxen, Synflex and Xenobid.

Naproxen was originally marketed as the prescription drug
Prescription drug
A prescription medication is a licensed medicine that is regulated by legislation to require a medical prescription before it can be obtained. The term is used to distinguish it from over-the-counter drugs which can be obtained without a prescription...

 Naprosyn by Syntex
Syntex
Laboratorios Syntex SA was a pharmaceutical company formed in Mexico City in 1944 by Russell Marker to manufacture therapeutic steroids from the Mexican yam....

 in 1976, and naproxen sodium was first marketed under the trade name Anaprox in 1980.
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