Patient blinded after overdosing on sildenafil

The man who consumed 10 times the recommended dose has ongoing eye problems

The “stop it or you’ll go blind” myth had a grain of truth about it for one patient who experienced night blindness and other eye issues after drinking an entire bottle of sildenafil.

The man in his mid-50s consumed about 10 times the recommended 80mg dose of sildenafil, when he drank the contents of a 30mL bottle of the erectile dysfunction medication, representing a total dose of 750mg.

He experienced debilitating night blindness, photophobia and central doughnut-shaped field defects in both eyes, an effect that lasted two months after taking the medication, according to a letter in JAMA Ophthalmology.

“The nyctalopia and photophobia improved within days, but central ring scotoma persisted,” wrote the authors from the Massachusetts Eye and Ear Infirmary, in Boston, US.

“He was a frequent sildenafil user prior to this episode and noted transient photophobia with sildenafil use in the past.”