Generic Name:

Sildenafil citrate

Common Brands:

Viagra, Revatio

Availability:

Prescription only

Therapeutic Class:

PDE-5 inhibitor

Forms:

Tablet - Viagra, Revatio

Suspension (liquid) - Revatio

Administration:

By mouth

Therapeutic Uses:

Erectile dysfunction (ED) - Viagra
Pulmonary arterial hypertension or PAH (increased blood pressure in the lungs) - Revatio

Controlled Status:

Not a controlled substance

What is Viagra (sildenafil)?

VIAGRA (via a graa) is a PDE-5 inhibitor. It is a prescription oral medication that is used to treat erectile dysfunction (ED). ED or impotence is a condition in which a patient cannot achieve or maintain an erection for satisfactory sexual intercourse.

There may be other uses of Viagra—your pharmacist or physician can give you further information.

Who can take Viagra (sildenafil)?

Viagra can be prescribed to adult men aged 18 and over. Viagra (sildenafil) is not for women and children. 

Sildenafil is also used to treat pulmonary hypertension. It is available under the brand name Revatio for this specific indication—pulmonary arterial hypertension. Revatio (sildenafil) is to be used in adults 18 years and older. Revatio is not recommended for use in children.