Viagra, used to treat sexual impotence, can strongly suppress abnormal heart rhythms known as arrythmias in sheep according to scientists. In female sheep, the drug—also known as sildenafil—was able to suppress an arrythmia called Torsades de Pointes within 90 seconds by reducing the frequency of irregular heart rhythms caused by abnormal handling of calcium. It also reduced the probability of Torsades de Pointes, which can lead to sudden cardiac death. However, the team believe the drug could treat other arrythmias as well. Cardiac arrythmias often follow a heart attack, or result from heart disease. Though often benign , they can...
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