Clomiphene
Clomiphene, which is sold under the brand names of Clomid and Serophene, is an oral medication used for women with ovulation disorders, such as polycystic ovarian syndrome, or women who do not ovulate regularly. Clomiphene stimulates the pituitary to release follicle-stimulating hormone, which stimulates egg production, and lutenizing hormone, which causes ovulation.
Doctors typically prescribe 50 mg of clomiphene for five days, beginning the third, fourth or fifth day of period. According to Web MD, 60 to 80 percent of women will ovulate after taking clomiphene, and of those, 50 percent will become pregnant.
Human Menopausal Gonadotropin
Human menopausal gonadotropin, which is sold under the brand names Repronex, Pergonal and Metrodin, is an injectable used for women who don't ovulate because of a pituitary gland that does not function. Where clomiphene stimulates the pituitary gland to stimulate ovulation, hMG directly stimulates the ovaries. Human menopausal gonadotropin contains both lutenizing hormone and follicle-stimulating hormone.
Follicle-Stimulating Hormone
Follicle-stimulating hormone, sold under the brand names Gonal-F, Follistim, Fertinex and Bravelle, is an injectable form of follicle-stimulating hormone. Injectable follicle-stimulating hormone is used for women whose eggs can produce follicles, but because of hormonal problems, the follicles do not mature. It is used to stimulate the follicles to mature. Follicle-stimulating hormone is also frequently used to create mutiple follicles in women who are going to undergo in-vitro fertilization.
Metformin
Metformin, which is sold under the name Glucophage, is a drug used to increases chances of pregnancy in women who have polycystic ovarian syndrome. Taken orally, metformin is used to boost ovulation in women whose suspected cause of infertility is insulin resistance, which is commonly associated with PCOS. Metformin reduces insulin resistance, which can stimulate ovulation.
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