Vidalista 40 drug is used to treat impotence. This medicine will work by increasing blood flow to the penile area. This drug helps men get and maintain an erection during sex. This medicine is taken with water. Take only one pill in 24 hours otherwise side effects may occur. Any medicine should be used only after proper consultation of the doctor. Children below 18 years of age should be kept away from this medicine and women should not use this drug.