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[Hypersensitivity pneumonitis due to venlafaxine]
Luis Borderías Clau1, Miguel Angel Marigil Gómez, Pascual Val Adán
1Sección de Neumología, Hospital General San Jorge, Huesca, España. lborderias@separ.es
Archivos De Bronconeumologia
|November 14, 2008
Summary
Venlafaxine, an antidepressant, can rarely cause hypersensitivity pneumonitis. This case shows symptoms resolved after discontinuing venlafaxine, highlighting its potential pulmonary side effect.
Area of Science:
- Pharmacology
- Pulmonology
- Toxicology
Background:
- Venlafaxine is a serotonin-norepinephrine-dopamine reuptake inhibitor used for depression.
- While generally well-tolerated, rare adverse effects like hypersensitivity pneumonitis have been reported.
Observation:
- A 61-year-old woman on venlafaxine experienced worsening depression and dose increase.
- Following the dose increase, she developed nonproductive cough, dyspnea, and asthenia.
Findings:
- Diagnostic evaluations including imaging, lung function tests, bronchoalveolar lavage, and lung biopsy confirmed hypersensitivity pneumonitis.
- Other potential causes were excluded.
- Discontinuation of venlafaxine led to complete resolution of symptoms and abnormal findings.
Implications:
- This case underscores the importance of considering drug-induced hypersensitivity pneumonitis in patients presenting with respiratory symptoms.
- Early recognition and withdrawal of the offending agent, venlafaxine, can lead to favorable outcomes without immunosuppressive therapy.
- Highlights the need for vigilance regarding rare pulmonary toxicities of antidepressants.
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