Vilitra is a medicine used to treat erectile dysfunction (ED) in men. It contains vardenafil, which helps increase blood flow to the penis during sexual stimulation. VILITRA 20 Vardenafil 20mg 100 Tabletas Vilitra (vardenafil) Purpose: Helps achieve and maintain an erection. How it works: Relaxes blood vessels in the penis to improve blood flow. Sexual stimulation: Required for it to work. Libido: It does not directly increase sexual desire. How does Vilitra compare with other ED medicines? Medicine Active ingredient Typical duration Vilitra Vardenafil Around 4–5 hours Cenforce Sildenafil Around 4–6 hours Vidalista Tadalafil Up to 36 hours These are approximate durations, not guarantees of an erection lasting that long. Possible side effects Common side effects include headache, facial flushing, nasal congestion, indigestion and dizziness. Important safety advice: Do not combine Vilitra with Cenforce, Vidalista or other erectile dysfunction medicines. Never take it with nitrate medicines for chest pain, because your blood pressure can drop dangerously. Seek emergency care for an erection lasting more than four hours, chest pain, or sudden vision or hearing loss.