leuprolide, (Lupron, Lupron Depot, Lupron Depot-Ped)

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GENERIC NAME: leuprolide

BRAND NAME: Lupron, Lupron Depot, Lupron Depot-Ped

DRUG CLASS AND MECHANISM: Leuprolide is an injectable, man-made hormone that is used for treating prostate cancer, endometriosis, central precocious puberty (early onset of puberty), and fibroids. It is similar to but stronger than human gonadotropin releasing hormone (GnRH).

GnRH is made in the hypothalamus (a part of the brain) and travels to the pituitary gland where it causes the production of luteinizing hormone (LH) and follicle stimulating hormone (FSH). LH and FSH are released by the pituitary into the blood and stimulate the production of testosterone by the testes in men and estrogens by the ovaries in women. The release of GnRH, LH and FSH is governed by negative feedback which means that when there is too much testosterone or estrogen being produced, the body sends a signal to the pituitary gland to reduce the production of GnRH which, in turn reduces the production of LH and FSH. This results in reduced production of testosterone and estrogen. When given continuously, leuprolide initially increases the production of LH and FSH as well as testosterone and estrogen; however, after a few weeks of continuous leuprolide, the levels of LH and FSH drop because the pituitary gland stops responding to GnRH and leuprolide. This leads to a decrease in the production of estrogen and testosterone.




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