10002142 J Clin Psychiatry / Document Archive

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The article you requested is

Safety and Tolerability of a Rapidly Escalating Dose-Loading Regimen for Risperidone.

J Clin Psychiatry 2000;61:909-911
Copyright 2000 Physicians Postgraduate Press, Inc.

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Background: Risperidone is an "atypical" antipsychotic with strong binding affinity for dopamine-2 and serotonin-2 receptors. Risperidone is often used to treat hospitalized patients who have acute psychotic decompensation, and the therapeutic target dose commonly used is 2 to 6 mg/day. The most common clinical practice is to titrate the dose of risperidone to the target therapeutic dose over several days. This study investigated the safety and tolerability of a rapid oral-loading regimen for risperidone developed to achieve therapeutic doses of this antipsychotic within 24 hours.

Method: Rapid-loaded risperidone was initiated with 1 mg. Subsequent doses were increased by 1 mg every 6 to 8 hours up to 3 mg. Dose increases were contingent on tolerance of last administered dose.

Results: Of a sample of 11 consecutive inpatients admitted to an acute psychiatric facility who were treated with this protocol, 7 tolerated the most rapid titration, achieving a standing dose of 3 mg b.i.d. in 16 hours. Three required a slightly slower titration and achieved this target dose in 24 hours. One patient could not tolerate the 3-mg dose but tolerated a standing regimen of 2 mg t.i.d. No patient experienced serious extrapyramidal side effects, sedation, or any other adverse event during the rapid titration, and in no case did risperidone have to be discontinued.

Conclusion: These results suggest that aggressive dosing of risperidone is well tolerated in most psychiatric inpatients.