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CASE REPORTS
JOURNAL ARTICLE
Dramatic Weight Loss Following Addition of Aripiprazole to Olanzapine in a Patient With Treatment-resistant Schizophrenia: A Case Report.
Journal of Psychiatric Practice 2019 March
CASE SUMMARY: A 26-year-old man with a history of longstanding treatment-resistant schizophrenia gained a substantial amount of weight while being treated with high-dose combination antipsychotic therapy with olanzapine and amisulpride. The patient was switched to combination therapy with olanzapine and aripiprazole to reverse a drug-induced hyperprolactinemia. The patient subsequently lost over 37 lb in weight over a period of 4 months despite no measurable changes in his dietary caloric intake or in his level of physical activity and without any identifiable medical cause on physical investigation.
DISCUSSION: The timing of the weight loss following the addition of aripiprazole and the exclusion of a medical cause point toward a causal relationship between the change in the patient's medication and the dramatic change in his body weight. We propose that, in a subgroup of patients, the addition of aripiprazole to their antipsychotic regime (without stopping the offending antipsychotic in terms of weight gain) can result in very significant weight loss and even the reversal of antipsychotic-induced weight gain.
DISCUSSION: The timing of the weight loss following the addition of aripiprazole and the exclusion of a medical cause point toward a causal relationship between the change in the patient's medication and the dramatic change in his body weight. We propose that, in a subgroup of patients, the addition of aripiprazole to their antipsychotic regime (without stopping the offending antipsychotic in terms of weight gain) can result in very significant weight loss and even the reversal of antipsychotic-induced weight gain.
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