Unformatted text preview: and prevents implantation of fertilized ovum. Some women experience bleeding, discomfort or expulsion so can’t have IUD. Non-surgical abortion – RU 486 (mifepristone). Antiprogestin. Prevents binding of progesterone to progesterone receptors. So level of progesterone declines, thus lining of uterus doesn’t proliferate and thicken. Menstruation occurs and embryo sloughs off. Prostaglandin E (misopristol) which stimulates uterine contractions is given after RU 486 to aid in expulsion of endometrium. Side effect is uterine bleeding....
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- Fall '10
- progesterone, Endometrium, thickens cervical mucus