Alvitra 20 is a drug that is primarily used to treat erectile dysfunction (ED) in men. Its active ingredient is vardenafil, which belongs to a class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. Vardenafil works by increasing blood flow to the penis to help achieve and maintain an erection when sexually aroused. The drug is taken orally, usually 25 to 60 minutes before sexual activity, and its effects can last for several hours. It is important to use Alvitra under the guidance of a healthcare professional to ensure that it is appropriate for the patient’s health condition and to minimize potential side effects and interactions with other medications.