Staxyn vardenafil disintegrating tablets should not be used in place of Levitra vardenafil regular tablets. This is not a complete list of side effects and others may occur. Allow 24 hours to pass between doses. Swallow several times as the tablet dissolves. One possibly serious, but rare, side effect with vardenafil is heart attack.Levitra (vardenafil) is a brand name medication used to treat symptoms of erectile dysfunction (ED), a condition which affects millions of people worldwide. ED . · Descriptions. Vardenafil is used to treat men with erectile dysfunction (sexual impotence). It belongs to a group of medicines called phosphodiesterase 5 (PDE5) . vardenafil (Levitra) avanafil (Stendra) About 30 million men in the United States occasionally have a problem with getting or keeping an erection, according to the .