Vidalista 20 is used to treat male sexual problems like impotence, erectile dysfunction, and premature ejaculation. This medicine contains an ingredient called tadalafil which helps in increasing the blood flow to the tissues of the penis in men. This medicine is taken only by men aged 18 to 65 years. The effect of this medicine lasts for 4 to 6 hours. You can take it before a meal or after a meal. Do not consume fatty foods or alcoholic beverages with this medicine.