bu·pro·pi·on 
(by-prōpē-ŏn′)
(by-prōpē-ŏn′)n.
A drug, C13H18ClNO, used in its hydrochloride form for the treatment of depression and as an aid in smoking cessation. It is a weak inhibitor of norepinephrine and dopamine reuptake in the central nervous system.
[BU(TYL) + propi(ophen)on(e), a ketone (PROPIO(NIC ACID) + PHEN(YL) + -ONE).]