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Female fertility agents are medications that improve female’s ability to conceive pregnancy. These agents are prescribed for infertile female who fails to conceive pregnancy after 1-year of regular and unprotected sexual intercourse. [1] The following will cover the advancements of female fertility agents, major causes of female infertility.
Letrozole, sold under the brand name Femara among others, is an aromatase inhibitor medication that is used in the treatment of breast cancer for post-menopausal women. [ 1 ] It was patented in 1986 and approved for medical use in 1996. [ 4 ]
Ovarian stimulation with the aromatase inhibitor letrozole has been proposed for ovulation induction in order to treat unexplained female infertility. In a multi-center study funded by the National Institute of Child Health and Development, ovarian stimulation with letrozole resulted in a significantly lower frequency of multiple gestation (i.e., twins or triplets) but also a lower frequency ...
The liver is the main site of drug metabolism and the drug is metabolized by glucuronidation, hydroxylation and N-dealkylation. The metabolites are mainly excreted in the urine. [24] Letrozole has a standard daily dose of 2,5 mg and the drug has around 99,9% oral bioavailability. That means that the drug is absorbed fast and entirely.
It is the most widely used fertility drug. [6] Other medications in this class include tamoxifen and raloxifene, although both are not as effective as clomiphene and are thus less widely used for fertility purposes. [7] They are used in ovulation induction by inhibiting the negative feedback of estrogen at the hypothalamus. As the negative ...
ATC code G Genito-urinary system and sex hormones is a section of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products.
ATC code G03 Sex hormones and modulators of the genital system is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products.
Letrozole is an aromatase inhibitor which reduces estradiol levels and increases levels of FSH and LH which can stimulate ovarian follicle maturation and ovulation. Letrozole is the preferred treatment in those with infertility due to PCOS and is associated with a higher pregnancy rate than other treatments. [2]