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Prochlorperazine has several potential mechanisms of action. It can block dopamine and alpha receptors as well as have anticholinergic effects. Prochlorperazine is classified as an antipsychotic and antiemetic. It is very seldom used as an antipsychotic in clinical practice and more used for its antiemetic effects. Because of the anticholinergic activity of prochlorperazine, there is potential for dry mouth, dry eyes, urinary retention, constipation, and other anticholinergic effects. Prochlorperazine does have the potential to have some alpha blocking activity. Keep an eye out for hypotension in patients who may be at risk.