Vidalista 20 is used to treat erectile dysfunction and impotence in men. This medicine contains an ingredient called tadafil which helps men to know strong erections during intercourse. This drug helps increase blood flow to the penile tissues of men. This drug should be taken only by men above 18 years of age. Do not consume alcoholic beverages or fatty foods with this drug. You take this medicine only once in 6 hours. There are also side effects of this medicine so take this medicine as per the advice of your doctor.