Revatio® is used to treat a rare disorder known as pulmonary arterial hypertension (PAH). Viagra® and generic Viagra® should not be utilised with Revatio® or with other PAH alternatives containing sildenafil or another PDE5 inhibitors (like Adcirca [tadalafil])Sildenafil also aids individuals with pulmonary arterial hypertension (PAH) by soothi