Norethisterone Enanthate Estradiol Valerate Injection

Each ampoule consists of 50 mg norethisterone enanthate plus 5 mg estradiol valerate in a 1.0-ml oily solution. The preparation is given by deep, intramuscular injection into the gluteal or deltoid muscles. The first injection is given during the first 5 days after the onset of menses, or before the sixth week postpartum among women not breast-feeding. The second, and subsequent injections, are given 30±3 days from the last injection. It is estimated that approximately 1.5-2 million women currently use once-a-month injectables, mainly in Latin America and China.