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Schizophrenic patients commonly suffer weight gain, which is often associated with widely prescribed antipsychotic medicines. It is distressing to most patients who experience it and may affect their response to treatment of schizophrenia. Weight gain is also associated with treatment noncompliance and several medical conditions. This study explored the efficacy and tolerability of topiramate as an adjuvant treatment of patients with schizophrenia who were carrying excess weight. In this 12-week, randomized, placebo-controlled prospective study, 66 hospitalized patients with schizophrenia who were carrying excess weight were given topiramate at doses of 100 mg/day or 200 mg/day, or a placebo. The primary measures made were body weight, body mass index, waist measurement, hip measurement, and waist-to-hip ratio. Safety measures included physical examinations and the monitoring of adverse effects …