Think of the Antiemetic Barhemsys as Similar to Droperidol or Haloperidol
Barhemsys (amisulpride) will be a new IV antiemetic for preventing and treating postoperative nausea and vomiting (PONV).
Think of it as similar to droperidol and haloperidol. They're all "dopamine antagonists" that can help keep the brain from triggering a vomiting reflex.
But don't expect Barhemsys to make a big splash at your hospital. There's no proof it's better than other options for PONV (dexamethasone, droperidol, ondansetron, etc).