Sildenafil, an active ingredient in Viagra, has been licensed in the US under the trade name Revatio to treat pulmonary hypertension

Viagra is the first drug to be administered as a pill that has a positive effect on the lungs - broadening the right vessels, helping good aeration and improving the intake of oxygen.

Viagra can also help those who suffer from the milder form of high lung pressure or people with chronic bronchitis or lung fibrosis.

This relaxation of the muscles in the blood vessels achieved by the drug is not very different from the effects of other drugs used to treat pulmonary hypertension.

Viagra increases the stamina of patients and improves their quality of life.

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