Most patients on neuroleptic therapy experience extrapyramidal symptoms in one form or another during treatment. While the risk of extrapyramidal symptoms appears diminished with the newer and "atypical" neuroleptics (for example, risperidone, remoxipride, clozapine), it is not eliminated. It is essential that the treating clinician monitor for such side effects since if they are left untreated they can be an ongoing source of discomfort to the patient and may affect compliance with therapy. Antiparkinsonian medication represents the mainstay of treatment for neuroleptic-induced extrapyramidal symptoms. Their clinical use is reviewed here with reference to mode of action, indications, choice, side-effects and precautions.

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A considerable number of patients with schizophrenia appear to receive progressively higher neuroleptic doses over the course of their illness, despite a lack of empirical data to support such an approach. Results are discussed in terms of current dosing recommendations and factors influencing dose changes.

Prescribing patterns for a group of outpatients with schizophrenia were surveyed for changes after the initiation of clozapine. Data were drawn from computerized pharmacy records, direct case record reviews, and interviews with the attending psychiatrists. The number of patients with two or more psychotropic drugs decreased by 31 percent after the initiation of clozapine, and a trend toward the use of clozapine without additional neuroleptics was detected. Decreases occurred in the use of anticholinergic agents, carbamazepine, and benzodiazepines, but selective serotonin reuptake inhibitors and sodium valproate were more likely to be prescribed concomitantly with clozapine.