PDE-5 Inhibitors and the Increase Risk of Nonarteritic Anterior Ischemic Optic Neuropathy in Males with Erectile Dysfunction Abstract Background: PDE-5 inhibitors are effective treatments for erectile dysfunction and are one of the best selling drugs. Like most drugs they have side effects, and permanent vision loss due to nonarteritic anterior ischemic optic neuropathy (NAION) has […]
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