Erectile dysfunction drug improves exercise tolerance in young people with congenital heart disease

Sildenafil, a drug used to treat erectile dysfunction and pulmonary hypertension, has another possible use -- helping children and young adults with congenital heart disease to better tolerate exercise. Sildenafil significantly improved measures of exercise performance during stress testing in patients with single-ventricle heart disease, according to researchers from The Children's Hospital of Philadelphia.

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