Levitra and tadalafil (Cialis) are both first-choice medications for treating ED. However, tadalafil (Cialis) can also be used to treat symptoms from an enlarged prostate. Detailed dosage guidelines and administration information for Levitra (vardenafil hydrochloride). Includes dose adjustments, warnings and precautions. Levitra relaxes muscles and increases blood flow to particular areas of the body and is used to treat erectile dysfunction. Learn about side effects, interactions and indications. Find patient medical information for Vardenafil (Levitra, Staxyn) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Levitra (vardenafil hydrochloride) is an oral medication taken to treat erectile dysfunction (ED). It’s in the same class of drugs as other popular ED medications, including Viagra and Cialis. Description 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. Erectile dysfunction is a condition where the penis does not harden and expand. Generic Levitra is a medication containing the active ingredient vardenafil This medicine is used to treat sexual problems in men such as Erectile Dysfunction. COMMON BRAND NAME (S): Levitra What should I tell my care team before I take this medication? They need to know if you have any of these conditions: Abnormal penis shape or Peyronie's disease Bleeding disorders Eye or vision problems, including a rare inherited eye disease called retinitis pigmentosa Levitra (Vardenafil HCl) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Levitra is a phosphodiesterase 5 (PDE5) inhibitor taken by mouth for the treatment of erectile dysfunction (ED) in men.