Vilitra 40 is a medication used to treat erectile dysfunction (ED) in men. It contains Vardenafil as its active ingredient, which belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. Vardenafil works by increasing blood flow to the penis during sexual stimulation. It helps men achieve and maintain an erection suitable for sexual activity. The effects of Vilitra 40 can last up to 4-5 hours after ingestion, during which time a man may find it easier to achieve and maintain an erection when sexually aroused.