Norethynodrel

**Definition:** A synthetic progestational hormone with actions and uses similar to those of PROGESTERONE. It has been used in the treatment of functional uterine bleeding and ENDOMETRIOSIS. As a contraceptive (CONTRACEPTIVE AGENTS), it has usually been administered in combination with MESTRANOL.

**Tree numbers:** - D04.210.500.668.651.693.706

**Synonyms:** - 19-Norpregn-5(10)-en-20-yn-3-one, 17-hydroxy-, (17alpha)-