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birth control methods - and prevents implantation of...

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Norplant – 6 slender hormone containing capsules. Surgically implanted under skin of arm using anesthesia. Slow and continually release progestin which inhibits ovulation and thickens cervical mucus. Can restore fertilization if removed. Depo-provera – intramuscular injection once every 3 months. Contains progestin. Prevents maturation of ovum and changes linings of uterus to make pregnancy unlikely. Intrauterine device (IUD) – small object made of plastic, copper or stainless steel. Inserted into cavity of uterus. Most common is Copper T 380A. Changes lining of uterus
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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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