NCIt related terms : 4-[3-(2-Chloro-10H-phenothiazin-10-yl)propyl]-1-piperazineethanol;
NCIt definition : A phenothiazine derivative and a dopamine antagonist with antiemetic and antipsychotic
properties. Perphenazine blocks postsynaptic dopamine 2(D2) receptors in the mesolimbic
and medullary chemoreceptor trigger zone (CTZ), thereby preventing the excess of dopamine
in the brain. This leads to reduction in psychotic symptoms, such as hallucinations
and delusions. Perphenazine appears to exert its antiemetic activity by blocking the
dopamine and histamine-1 receptor in the CTZ thereby relieving nausea and vomiting
in the brain. In addition, perphenazine binds to alpha-adrenergic receptors.;