Sildenafil is a medication primarily used to treat erectile dysfunction (ED) in men
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It belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors
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Sildenafil works by inhibiting the enzyme PDE5, which helps to relax the smooth muscles in the blood vessels of the penis.
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Sildenafil was originally marketed under the brand name Viagra by Pfizer, but it is now available in generic forms as well, which are more affordable.
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Apart from treating ED, sildenafil is also used to treat pulmonary arterial hypertension (PAH), a condition characterized by high blood pressure in the lungs' arteries.
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Common side effects of sildenafil include headache, flushing, indigestion, nasal congestion, and visual disturbances (such as blue-tinged vision or sensitivity to light).
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Sildenafil should not be taken with certain medications, particularly nitrates used to treat chest pain or heart problems, as it can cause a dangerous drop in blood pressure.
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Sildenafil is not recommended for individuals with severe heart or liver problems, recent stroke or heart attack, or known hypersensitivity to the drug.
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As with any medication, it is crucial to use sildenafil as prescribed by a healthcare professional.