It is used as an emergency contraceptive tablet to prevent unwanted pregnancy in case of unprotected sex or contraception failure. As the name suggests, it should be taken as soon as possible, preferably within 72 hours of unprotected sex. This tablet contains levonorgestrel as an active ingredient. Unwanted-72 Tablet 1’s contains ‘Levonorgestrel’, which prevents the release of an egg from the ovary (female reproductive cells) or prevents fertilization of an egg by sperm (male reproductive cells). Unwanted-72 Tablet 1’s may also change the lining of the uterus to prevent the development of a pregnancy.