Vilitra 20 mg is used to treat erectile dysfunction in men. The drug contains an ingredient called vardenafil citrate which helps increase blood flow to the penis tissue in men and stimulates men to have sex longer. Overuse of this medicine can cause problems for you so consult your doctor before taking this medicine. Once you take this medicine, its effect lasts for 5 hours so you should not take this medicine frequently. You can also take this medicine before or after a meal. Take this medicine with water but do not break or chew the medicine.