Vidalista 20 is taken to treat erectile dysfunction in men. Tadalafil, the main ingredient in this medicine, plays an important role. 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 taken for men above 18 years of age, women and young children should not take it. Drink plenty of fluids and avoid caffeine with the medication to get the most benefit from this medication.