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Published on: November 10, 2023
Olanzapine-induced peripheral eosinophilia and eosinophilic pleural effusion: A case report
Jing Huang1, Yiming Yu, Wei Lin
1Department of Pharmacy, The Affiliated Hospital of Medical School of Ningbo University Department of Respiratory Medicine, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China.
Rationale:
Eosinophilic pleural effusion (EPE) is an eosinophil count ≥10% in pleural effusion, which is a rare condition in drug therapy.
Patient Concerns:
We describe the case of a 70-year-old Alzheimer patient who was taking olanzapine for 2 months for the treatment of depression, and developed peripheral eosinophilia and bilateral EPE.
Diagnoses:
Olanzapine-induced peripheral eosinophilia and eosinophilic pleural effusion was diagnosed.
Interventions:
Olanzapine was discontinued, and repeated drainage of fluid from the pleural cavity was performed.
Outcomes:
All symptoms-as well as the EPE-were resolved 6 months later.
Lessons:
This case is a reminder that olanzapine may be a potential agent for EPE, and that this should be considered in clinical practice.
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