Article · Wikipedia archive · Last revised Jun 7, 2026

Bupropion/zonisamide

Bupropion/zonisamide is an experimental combination of bupropion which was under development for the treatment of obesity. Bupropion is a norepinephrine–dopamine reuptake inhibitor and nicotinic acetylcholine receptor antagonist, while zonisamide is an anticonvulsant acting as a sodium channel blocker, T-type calcium channel blocker, and weak carbonic anhydrase inhibitor. The combination was being developed by Orexigen Therapeutics and reached phase II clinical trials prior to discontinuation.

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Bupropion/zonisamide
Combination of
BupropionNorepinephrine-dopamine reuptake inhibitor and nicotinic acetylcholine receptor antagonist
ZonisamideSulfonamide anticonvulsant
Legal status
Legal status
  • Investigational
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Bupropion/zonisamide (former tentative brand name Empatic, Excalia) is an experimental combination of bupropion which was under development for the treatment of obesity.123 Bupropion is a norepinephrine–dopamine reuptake inhibitor and nicotinic acetylcholine receptor antagonist, while zonisamide is an anticonvulsant acting as a sodium channel blocker, T-type calcium channel blocker, and weak carbonic anhydrase inhibitor.1 The combination was being developed by Orexigen Therapeutics and reached phase II clinical trials prior to discontinuation.145

See also

See also

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