NCI Drug Dictionary
The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.
The maleate salt form of prochlorperazine, a synthetic, piperazine phenothiazine derivative with antiemetic, antipsychotic, antihistaminic, and anticholinergic activities. Prochlorperazine binds to and blocks the postsynaptic dopamine D2-receptor in the chemoreceptor trigger zone (CTZ) of the brain and may prevent chemotherapy-induced emesis. Prochlorperazine maleate also blocks anticholinergic and alpha-adrenergic receptors. Its antagonistic actions on the alpha-1 adrenergic receptors results in sedation, muscle relaxation, and hypotension. Check for active clinical trials using this agent. (NCI Thesaurus)