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Video: Viagra side-effect investigation. WASHINGTON160;8212; Federal health officials are probing reports of blindness among dozens of men who used Viagra and other impotence drugs ‚ but at the same time cautioning that the vision loss can femae linked to the same illnesses that lead to impotence. The Food and Drug Administration disclosed Friday that it was in discussions with the makers of Viagra, Cialis and Levitra about what the labels of femalee drugs should say about the rare cases of varying degrees of vision loss, including blindness. The maker of Cialis already has voluntarily added a one-line mention to its label. At issue is sudden vision loss when blood flow to the optic baakii is blocked, a condition femle NAION or non-arteritic anterior ischemic optic neuropathy. The FDA has new viagra add reports of NAION among the impotence drug users: 38 for Viagra, four for Cialis and one for Levitra, said spokeswoman Susan Cruzan. Those are rare numbers, given that Viagra alone has been used by 23 million men worldwide since woh jo adhoori si baat baaki hai female viagra approval in 1998, according to maker Pfizer Inc. Also complicating the question: NAION is considered one of the most common causes of sudden vision loss in older Americans, and estimates suggest there are anywhere from 1,000 to 6,000 cases a year. Risk factors include diabetes and heart disease, two of the leading causes of impotence.

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Frequency not reported: Transient ischemic attack, seizure, seizure recurrence, ataxia, hypertonia, neuralgia, neuropathy, paresthesia, somnolence, reflexes decreased. Postmarketing reports: Transient global amnesia [Ref] Very common (10 or more): Abnormal vision (up to 11) Common (1 to 10): Visual color distortion, retinal hemorrhage, visual impairment, vision blurred, photophobia, chromatopsia, cyanopsia, eye irritation, ocular hyperemia.

1 to 1): Penile hemorrhage, hematospermia. Frequency not reported: Priapism, prolonged erection, increased erection, cystitis, nocturia, urinary frequency, urinary incontinence, abnormal ejaculation, genital edema, anorgasmia [Ref] Uncommon (0. 1 to 1): Hematuria [Ref] Hypersensitivity.

Previous studies have not shown sildenafil to have any significant effects on IOP in normal subjects or in patients with chronic open-angle glaucoma (Yajima et al. 2000). Increased ocular and choroidal blood flow has been demonstrated in animals and humans with sildenafil (Paris et al. 2001).]