Lenor - 72 is a form of progesterone, which is a female hormone involved in conception.

Lenor - 72 is used as an emergency contraceptive (EC) to prevent pregnancy after contraceptive failure or unprotected intercourse. Lenor - 72 prevents ovulation (the release of an egg from an ovary), disrupts fertilization (joining of the egg and sperm), and inhibits implantation (attachment of a fertilized egg to the uterus).

Lenor - 72 may also be used for purposes other than those listed in this medication guide.