Vilitra 20 mg is commonly prescribed to treat a male s*xual dysfunctional condition called impotence, also known as erectile dysfunction (ED). Each tablet of this medicine contains 20 mg of a monohydrochloride (HCl) salt of vardenafil. Classified in the class of phosphodiesterase 5 inhibitors (PDE-5 inhibitors), it helps achieve an erection by allowing more blood to flow to the p*nis. It can be taken with or without food. The effects usually appear between 30 minutes and 1 hour after consuming it. The effects of this drug last 4 to 5 hours.