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Sildenafil is a prescription medication used to treat erectile dysfunction (under brand names like Viagra) and pulmonary arterial hypertension (under brand names like Revatio). It belongs to the phosphodiesterase-5 (PDE5) inhibitor class, which works by relaxing blood vessels and increasing blood flow to specific areas of the body
Sildenafil is a prescription medication used to treat erectile dysfunction (under brand names like Viagra) and pulmonary arterial hypertension (under brand names like Revatio). It belongs to the phosphodiesterase-5 (PDE5) inhibitor class, which works by relaxing blood vessels and increasing blood flow to specific areas of the body