What are the side effects of sildenafil?
Sildenafil is generally well tolerated. Common reported side effects of sildenafil are headache, heartburn, flushing, stomach upset, dizziness, temporary muscle aches, dizziness, nose bleeds, difficulty sleeping, and rash. Prolonged erection (greater than 4 hours) in a male patient is a rare but very serious side effect; if this should happen to you, you should contact your doctor immediately. Taking certain drugs such as nitrates, nitric oxide donors or alpha blockers along with sildenafil can cause a significant drop in blood pressure, which could result in loss of consciousness or even death. Therefore, use of these classes of medications is not recommended while taking sildenafil. You should make certain that you are not taking these medications before starting sildenafil. Is there any risk of blindness when using sildenafil? There have been rare reports of blindness with use of sildenafil in the form of Viagra. This type of blindness is called Non-Arteritic Anterior Ischemic Optic
