apotheke im kaufland bietigheim FDA approves Vivus drug for erectile dysfunctionHealth regulators on Friday approved Vivus Inc.s avanafil treatment for erectile dysfunction, giving the small company, which has struggled to bring a weight loss drug to market, a potentially lucrative commercial product. The U.S. Food and Drug Administration said the pill, which will compete with Pfizers Incs Viagra and other ED drugs, will be sold under the brand name Stendra. Stendra, which belongs to the same class of medicines called PDE5 inhibitors as Viagra, Eli Lillys Cialis and Levitra, sold by GlaxoSmithKline and Bayer, works by increasing blood flow to the penis.