Olanzapine effectiveness on weight gain in anorexia nervosa patients: systematic review and meta-analysis.

BMC Psychiatry · 2026 · PMC13188548 · PMID 42157160

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did not reach statistical significanceno p-value reported

Conclusion Although olanzapine showed a numerically greater weight gain compared to control conditions, the pooled effect did not reach statistical significance and was associated with substantial heterogeneity.

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