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 cant 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 doesnt 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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This note was uploaded on 04/30/2011 for the course MED RAD SC 2M03 taught by Professor Wendy during the Fall '10 term at McMaster University.

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