Vilitra 20 mg is a prescription medicine used to treat erectile dysfunction (ED) in men. Its active ingredient is Vardenafil, which belongs to a group of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Vilitra works by relaxing blood vessels in the penis, increasing blood flow during sexual arousal, which helps achieve and maintain an erection. The usual dose is 20 mg, taken orally about 30–60 minutes before sexual activity. The effects can last several hours, but sexual stimulation is necessary for the medication to work.