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na·prox·en nə-'präk-sən n an anti-inflammatory analgesic antipyretic drug C14H14O3 administered esp. to treat arthritis often in the form of its sodium salt C14H13NaO3 see ALEVE, NAPROSYN
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n.
an analgesic drug that also reduces inflammation and fever (see NSAID). It is used to treat rheumatoid arthritis, ankylosing spondylitis, and gout. It is administered by mouth; side-effects may include digestive upsets and rashes. Trade names: Naprosyn, Nycopren.
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na·prox·en (nə-prokґsən) [USP] a nonsteroidal antiinflammatory drug that is a propionic acid derivative, used in the treatment of pain, inflammation, osteoarthritis, rheumatoid arthritis, gout, calcium pyrophosphate deposition disease, fever, and dysmenorrhea and in the prophylaxis and suppression of vascular headache; administered orally or rectally.Medical dictionary. 2011.