Physostigmine and haloperidol treatment of acute phencyclidine intoxication

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Abstract
Patients (24) with phencyclidine intoxication were treated with either physostigmine (2 mg i.m.) or haloperidol (5 mg i.m.) based on the presence of delusions and/or hallucinations. Several symptoms subsequently improved. Schizophreniform symptoms showed substantial improvement with haloperidol.