naproxen
Concise Oxford English Dictionary © 2008 Oxford University Press:
naproxen /naˈprɒksɛn/
▶noun Medicine a synthetic anti-inflammatory drug used in the treatment of headaches and arthritis.
– origin 1970s: from na(phthyl) + pr(opionic) + ox(y-), + -en on the pattern of words such as tamoxifen.
'naproxen' also found in these Oxford entries:

