Viagra, Revatio - Sildenafil citrate
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VIAGRA ContraindicationsContraindications include: * When taking nitric oxide donors, organic nitrites and nitrates, such as glyceryl trinitrate, sodium nitroprusside, amyl nitrite ("poppers")[5] * In men for whom sexual intercourse is inadvisable due to cardiovascular risk factors * Severe hepatic impairment (decreased liver function) * Severe impairment in renal function * Hypotension (low blood pressure) * Recent stroke or heart attack * Hereditary degenerative retinal disorders (including genetic disorders of retinal phosphodiesterases) |