2, progesterone, also known as progesterone, is progesterone. It can be used to artificially regulate menstrual cycle, but progesterone is not everything. Progesterone is a prescription drug and should be used under the guidance of a doctor. Progesterone has side effects, so use it with caution. Progesterone can be taken orally or injected.
3. Progesterone is a natural progesterone secreted by corpus luteum of ovary, which has significant morphological effect on endometrium stimulated by estrogen in vivo and is necessary to maintain pregnancy. Its pharmacological effects are as follows: ① In the late menstrual cycle, glands in the uterine mucosa grow, the uterus is congested, and the endometrium thickens, so as to prepare for the implantation of fertilized eggs. After implantation, the fertilized egg will produce placenta, which will reduce the excitability of pregnant uterus, inhibit its activity and make the fetus grow safely. (2) Under the same effect as estrogen * * *, promote the full development of breasts and prepare for milk production. ③ The cervix is closed, mucus is reduced and thickened, and sperm is difficult to penetrate; At high dose, hypothalamic negative feedback inhibits the secretion of pituitary gonadotropin, leading to ovulation inhibition. ④ Competitive resistance to aldosterone promotes the excretion and diuresis of sodium ions and chloride ions. ⑤ It can slightly raise the body temperature and make the basal body temperature in luteal phase of menstrual cycle higher.