Vilitra 20 is used to treat impotence or sexual dysfunction. Daily use of this drug can eliminate the problem of impotence. The use of this drug slowly relaxes the uterine muscles and increases the speed of blood flow to the muscles. So that there is no problem in achieving erection during sexual intercourse. These pills should be taken only once a day otherwise it may cause side effects. The effect of this drug lasts for 6-7 hours in the body.