June 24, 2021


Term: Pulmonary arterial hypertension (PAH)

Things you need to know about viagra

Things you need to know about viagra

How it works Viagra is a brand name for the medication sildenafil. Sildenafil hinders the activity of an enzyme known as cGMP-specific PDE-5 (phosphodiesterase type-5). This enzyme separates cGMP, a substance...