Erectile dysfunction can be effectively treated with vardenafil. https://www.crossroadspharm.com/vardenafilThe improved blood flow to the penis is what really causes an erection to form and stay put. ... View MoreErectile dysfunction can be effectively treated with vardenafil. https://www.crossroadspharm.com/vardenafilThe improved blood flow to the penis is what really causes an erection to form and stay put. Phosphodiesterase type 5 (PDE-5) inhibitors, like vardenafil, treat erectile dysfunction. It's just called Levitra, but it's the generic brand.