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See how a common antibiotic caused one woman to suffer a life-threatening allergic reaction. Then, are cholesterol-lowering drugs being overprescribed? The Doctors debate controversial guidelines intended to reduce heart attack deaths. Plus, learn about specialized glasses for helping children and adults affected by visual processing disorders.
The class of drugs that Levitra, Viagra, Stendra, and Cialis belong to are called PDE5 inhibitors. They work by relaxing tight blood vessels, allowing more blood to surge into the penis and cause an erection, says Gregory Bales, M.D., an associate professor of urology at the University of Chicago.
The little pills do the trick for more than two-thirds of men with Viagra protects the heart (ED). They also work for guys who simply need them for a short time to get their “confidence back,” says Michael Eisenberg, M.D., director of male reproductive medicine and surgery at Stanford University.