Erectile dysfunction care at Mayo Clinic Our caring team of Mayo Clinic experts can help you with your health concerns. What to expect from your doctor Your doctor is likely to ask you a number of questions. If you are a Mayo Clinic patient, this could include protected health information. Write down key personal information, including any major stresses or recent life changes. B No evidence of risk in humans Based on FDA pregnancy categories Vardenafil is not approved for use in women, and the effects of this medicine during pregnancy or in breastfeeding women are unknown.Levitra – Uses, Side Effects, and More. Generic Name (S): vardenafil. Uses. Side Effects. Precautions. Interactions. Overdose. Images. Reviews () Uses. Vardenafil is used to treat male sexual.  · Levitra; Staxyn; Descriptions. Vardenafil is used to treat men with erectile dysfunction (sexual impotence). It belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors. These medicines prevent an enzyme called phosphodiesterase type-5 from working too quickly. The penis is one of the areas where this enzyme works. Vardenafil (Levitra, Staxyn) Avanafil (Stendra) All four medications enhance the effects of nitric oxide — a natural chemical your body produces that relaxes muscles in the penis.