Levitra is a prescription medication used to treat erectile dysfunction (ED) in men. Its active ingredient is vardenafil, which works by increasing blood flow to the penis during sexual stimulation, helping to achieve and maintain an erection. Levitra is typically taken about 30 minutes to an hour before sexual activity and can last for several hours. It's important to consult a healthcare professional before using Levitra to ensure it is appropriate and safe for individual health conditions.