One medication used to treat impotence and erectile dysfunction is called Vilitra 20 . Vardenafil, an ingredient in this medication, helps men achieve a strong erection during sexual activity so they can experience the pleasure of intercourse for an extended period of time. Men only, over the age of 18, may use this medication. Take this medication half an hour before sexual activity. While taking this medication, avoid eating fatty foods or cold beverages as they will decrease the medication’s effectiveness. Follow your doctor’s advice when taking this medication.