Vidalista 20 is a drug used to treat male sexual problems. This medicine contains an ingredient called tadalafil. This drug helps increase blood flow to the muscles by relaxing the blood vessels. It is imperative to consult a doctor before taking this medicine. This medicine is usually taken only once. This drug takes approximately 1 hour of intercourse, so you can enjoy intercourse with your partner for a longer time. The effect of this medicine takes about 30 minutes or 1 hour.