Viagra keeps two-year-old British boy alive

The Hindu News Update Service: "London (PTI): Who says anti-impotence drugs are only for old men? A two-year-old boy in Britain is dependent on Viagra -- but for a different reason altogether. Oliver Sherwood takes the medicine four times a day to control pulmonary hypertension (PH), a rare and heart and lung condition that causes chronic high blood pressure, 'The Daily Telegraph' reported on wedneday."