Vidalista 20mg is used for diseases such as erectile dysfunction or impotence. This drug contains a substance called tadafil which helps to increase blood flow to the tissues of the penis. This drug helps men to control strong erection during sexual intercourse. Take this medicine only once in 24 hours as advised by the doctor. You can take this medicine with water. The effect of this medicine lasts for 4 to 6 hours. You can visit pharmev.com for more information.