fertility drug

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Related to fertility drug: Clomid

fertility drug,

any of a variety of substances used to increase the possibility of conception and successful pregnancy. Different methods are used to correct or circumvent the many different functional disorders of both males and females that can interfere with conception and childbearing (see infertilityinfertility,
inability to conceive or carry a child to delivery. The term is usually limited to situations where the couple has had intercourse regularly for one year without using birth control.
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). The term fertility drug primarily refers to drugs that mimic or stimulate production of a hormone necessary for conception, but it may also be used to refer to the hormones themselves, when they are administered as part of a program of infertility treatment.

The most common cause of female infertility is failure to ovulate. In certain cases this can be corrected with the drug clomiphene citrate (Clomid, Serophene). Introduced in 1967, clomiphene stimulates the release of the gonadotropic hormonesgonadotropic hormone
or gonadotropin,
any one of three glycoprotein (see protein) hormones released by either the anterior pituitary gland or the placenta (the organ in which maternal and fetal blood exchange nutrients and waste products) that have various effects upon
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: follicle-stimulating hormone (FSH) and luteinizing hormone (LH). FSH functions to stimulate the ovarian follicle (the egg and its surrounding fluid and hormones); LH triggers ovulation. In some studies, clomiphene has been associated with an increased risk of ovarian cancer. Clomiphene is also used to stimulate spermatogenesis in men with low sperm counts.

Human menopausal gonadotropin, or menotropin (Pergonal), introduced in 1970, is an extract from the urine of menopausal women. It contains FSH and LH and encourages ovulation. It is often given together with human chorionic gonadotropin (HCG), a hormone secreted by the placenta during pregnancy and obtained from the urine of pregnant women. Its action is similar to that of luteinizing hormone. In males the same combination is given to increase testosterone production, which in turn increases sperm production.

Urofollitropin (Metrodin) is essentially follicle-stimulating hormone without luteinizing hormone. It is used especially in women with polycystic ovary syndrome, who tend to have too little FSH and too much LH. A frequent result of ovulation induced by these drugs is the production of more than one ovum (egg) in a month, and subsequent multiple birthsmultiple birth,
bringing forth of more than one offspring at birth. Although many smaller mammals bear several young at a time, multiple births are relatively uncommon in humans and other primates.
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, female sex hormone that induces secretory changes in the lining of the uterus essential for successful implantation of a fertilized egg. A steroid, progesterone is secreted chiefly by the corpus luteum, a group of cells formed in the ovary after the follicle
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 is a female sex hormone that induces secretory changes in the lining of the uterus essential for successful implantation of a fertilized egg. It is released by the ovary after the ovum is released. It is administered in cases where fertilization of the ovum does occur but where there is evidence that the uterine lining is unable to support the developing fetus, as in repeated miscarriages or bleeding during pregnancy.

See also DESDES
or diethylstilbestrol
, synthetic nonsteroid female sex hormone having the same physiological effects as estrogen. In the 1940s and 50s DES was mistakenly believed to reduce the risk of miscarriage and was routinely prescribed for pregnant women believed to be at
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References in periodicals archive ?
Certainly it isn't the reason that today's childless woman is relying on fertility drugs to make her a potential mother.
However, another study that looked specifically at use of particular fertility drugs found no overall risk of ovarian cancer in a large cohort (BMJ 2009 Feb.
FERTILITY drugs have been linked to an increased risk of womb cancer in women treated three decades ago.
But then doctors put Anna on the fertility drug Clomid.
Boy and girl twins are the first babies in Britain to be artificially conceived using a revolutionary new procedure that dispenses with fertility drugs.
I'm horrified to learn that a small number of women yearning for a baby could be risking their health by buying fertility drugs online.
MONTREAL -- The process of collecting immature eggs from unstimulated ovaries, and then maturing them in the lab before fertilizing them, known as in vitro maturation, may someday completely eliminate the need for fertility drugs during in vitro fertilization.
A zoo vet consulted leading gynaecologist David Hill for advice and Salome was given fertility drug clomifene, which is also used by women, to kick- start her ovulation.
Around 3,500 tablets of the fertility drug were taken from the premises of Dowelhurst, in Wedgenock Lane, Warwick.
MADRID: Hundreds of people carrying torches climbed a hillside during darkness to pay homage to a giant toad, which they say is their answer to the fertility drug Viagra.
Mrs Humair says the unplanned pregnancy occurred while she was taking a fertility drug to regulate her menstrual cycle, and that she is still not ready for the responsibility of caring for the babies.
SALOME the gorilla cradles her newborn baby yesterday after conceiving with help from a human fertility drug.