Uses of vigora 100 mg are used in the treatment of erectile dysfunction. Use Vigora 100 mg in the dose and duration as advised by your doctor. Read about Vigora 100mg side effects, uses, dosage, price, composition, and substitutes. Erectile Dysfunction or shortcoming isn't an affliction; It is a condition where a man isn't prepared for getting and keeping an erection firm enough for sex. In Erectile Dysfunction, a man can't get or keep a firm erection that is required for an attractive sexual development.