Tag: Unequal pupils

A 2018 case report documented a 48-year-old woman who developed acute anisocoria, a condition of unequal pupil size, shortly after beginning treatment with the antidepressant citalopram. Though uncommon, the case highlights the important question: **can citalopram cause anisocoria** and how should this be addressed by healthcare providers and patients?.

Affecting up to 20% of the population, a slight difference in pupil size, or physiologic anisocoria, is common and benign [1.5.3]. However, for others, the answer to **what drugs cause unequal pupils** is a critical diagnostic question when the change is sudden or significant.