Vol. 2, Issue 5, Part H (2016)

Abstract
Noristerat or norethisterone or norethindrone or heptanoate is a depot progestogen for hormonal contraception. Synthetic progestin (NET) exerted pharmacological effects at multiple levels of both the hypothalamic pituitary- Ovarian axis and the female genital tract. Norethisterone heptanoate was the first synthetic progestational agent which was popularly used as a long acting injectable contraceptive. synthetic progestins may have direct effect on ovary by influencing the LH and FSH ratio.