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Drug-associated lacrimal drainage obstruction: a population-based pharmacovigilance study
Victoria Leung1, Andrew Mihalache1, Marko M Popovic2,3
1Temerty School of Medicine, University of Toronto, Toronto, Ontario, Canada.
Orbit (Amsterdam, Netherlands)
|July 6, 2026
Summary
This study found that several medications, including sodium iodide I-131, netarsudil, and docetaxel, are disproportionately associated with lacrimal drainage obstruction adverse events (AEs). Increased clinician awareness is crucial for at-risk patients.
Area of Science:
- Ophthalmology
- Pharmacovigilance
- Drug Safety
Background:
- Limited evidence exists linking medications to lacrimal drainage obstruction, primarily from case reports.
- Real-world data offers a valuable resource for identifying potential drug-related adverse events (AEs).
Purpose of the Study:
- To investigate associations between specific drugs and lacrimal drainage obstruction-related AEs.
- To utilize the Food and Drug Administration Adverse Event Reporting System (FAERS) for pharmacovigilance analysis.
Main Methods:
- Conducted a pharmacovigilance analysis of lacrimal drainage obstruction AEs reported to FAERS (October 2003 - December 2024).
- Employed disproportionality analyses, including reporting odds ratios (RORs) and Bayesian confidence propagation neural network algorithms, to detect adverse drug reaction signals.
Main Results:
- Identified fourteen pharmacological agents disproportionately associated with lacrimal drainage obstruction AEs.
- Sodium iodide I-131, netarsudil, and docetaxel showed the highest disproportionate reporting.
- Radiopharmaceuticals, chemotherapy agents, and ophthalmic agents were the most frequently implicated drug classes.
Conclusions:
- This is the first pharmacovigilance study of lacrimal drainage obstruction AEs using FAERS data.
- Significant associations were found with sodium iodide I-131, netarsudil, and docetaxel.
- Enhanced clinician awareness is vital for patients at risk, with further research needed to confirm causality and develop prevention strategies.
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