Vardenafil is a medication primarily used to treat erectile dysfunction in men. It works by increasing blood flow to the penis, helping to achieve and maintain an erection when sexually stimulated. Vardenafil belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. This medication is typically taken orally, about 30 minutes to an hour before sexual activity. Its effects can last for up to 5 hours, allowing for more spontaneity in intimate situations. Like all medications, Vardenafil may have side effects and should be used under the guidance of a healthcare professional.