Vidalista 40mg is used for impotence and erectile dysfunction in men. This medicine contains an ingredient called tadafil which helps men to know ejaculation for a long time. You can also take this medicine before or after a meal. Take this medicine 30 minutes before intercourse. The effect of this medicine lasts for 3 to 4 hours. This drug should be taken only by men above 18 years of age. Take this medicine as advised by your doctor. You can visit pharmev.com for more information.