Blood-Clot Surprise: Finding might explain a danger of Viagra
For a fraction of 1 percent of the men who take sildenafil, the impotence-fighting pill known as Viagra, sex comes with nasty side effects: heart attack and sometimes death. However, scientists have never linked the deaths directly to the drug, leaving open the possibility that the physical stress of amorous activity could be the problem.
Now, researchers studying the blood component called platelets have stumbled upon evidence that might implicate the drug instead of the sex.