In a study of the relative efficacy of three drug treatments for 46 newly hospitalized acutely psychotic patients, fluphenazine enanthate, alone or in combination with chlorpromazine, proved significantly more effective than chlorpromazine alone. Although fluphenazine enanthate, alone or in combination, produced more extrapyramidal side effects than chlorpromazine alone despite prophylactic antiparkinsonian medication, additional antiparkinsonian medication adequately controlled these side effects.
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