More Bad News On Estrogen Drugs and Heart Health Heart disease is the number one cause of death in both men and women.
Women worry about getting breast cancer, but heart disease is much more of a threat.
One out of every two women will die of heart disease, while only one in 26 will die of breast cancer. Because heart disease is such a threat to women's health, it's imperative that they be aware of things that could have an impact on it. New studies point to certain estrogen drugs as being potent culprits in the development of heart disease in women. Premarin, a synthetic estrogen drug made from horse urine, is one of the most widely-prescribed drugs ever. It also caused the risk of getting a blood clot to skyrocket.