Tuesday 25 January 2011

Viagra can help with altitude sickness, report says

Viagra is best known as a treatment for male impotence. But there are reports that it has many other uses such as treating pulmonary hypertension (elevated blood pressure in the artery to the lungs).

People who climb mountains may develop high-altitude pulmonary edema, which can be quite dangerous. In this condition, fluid accumulates in the lungs and makes breathing difficult. The sufferer may have rapid heart rate, shallow, rapid breaths and start to turn blue. Drugs such as Viagra (sildenafil) and Cialis (tadalafil) can increase nitric oxide levels in the blood vessels of the lungs and help them relax, according to a 2010 report in Progress in Cardiovascular Diseases. This can reduce the fluid that is leaking into the lungs.

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