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About Sildenafil, what is Sildenafil?

Sildenafil is also sometimes used to treat pulmonary hypertension (high blood pressure in the blood vessels that supply the lungs). In pulmonary hypertension it works by relaxing blood vessels in the chest. Is sildenafil used for pulmonary hypertension? Yes, sildenafil is used to treat pulmonary hypertension, specifically pulmonary arterial hypertension (PAH).