Sildenafil (Oral Route) Description and Brand Names – Mayo Clinic

High blood pressure (hypertension) is a known cause of erectile dysfunction (any reading above 130 (top number) and 80 (bottom number) are considered high). Erection problems are also a common side effect of many drugs, including those used to treat high blood pressure. If you already use medicine for high blood pressure (hypertension), sildenafil could make your blood pressure go too low. Call your doctor right away if you have blurred vision, confusion, dizziness, faintness, or lightheadedness when getting up from a lying or sitting position suddenly, sweating, or unusual tiredness or weakness. does sildenafil raise blood pressure Learn how Viagra, the drug for erectile dysfunction, can also lower blood pressure by relaxing blood vessels and improving blood flow. See studies, history and other benefits It can be dangerous to take sildenafil if you also take medicines called nitrates (often given for chest pain). The combination can cause a dangerous fall in your blood pressure.

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