Excessive use of erectile dysfunction drug has been linked to an irreversible color vision damage in a 31-year-old man.
Richard Rosen, the Director of Retina Services at New York Eye and Ear Infirmary of Mount Sinai (NYEE), and colleagues reported the case of the patient who arrived at an urgent care clinic because of red-tinted vision in both of his eyes that had persisted for two days.
According to the case study detailed in Retinal Cases and Brief Reports, the man’s vision problem started soon after he took an unknown amount of liquid sildenafil citrate he bought online. Sildenafil can be bought as a generic drug for erectile dysfunction and under the brand name Viagra.
It turned out that the patient consumed more than the recommended 50 mg dose and his symptoms showed up shortly after ingestion. He was eventually diagnosed with persistent retinal toxicity, which doctors linked to taking high dose of the medication.
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