Cetrorelix
Drug used in IVF procedures / From Wikipedia, the free encyclopedia
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Cetrorelix (INNTooltip International Nonproprietary Name, BANTooltip British Approved Name), or cetrorelix acetate (USANTooltip United States Adopted Name, JANTooltip Japanese Accepted Name), sold under the brand name Cetrotide, is an injectable gonadotropin-releasing hormone (GnRH) antagonist. A synthetic decapeptide, it is used in assisted reproduction to inhibit premature luteinizing hormone surges[1] The drug works by blocking the action of GnRH upon the pituitary, thus rapidly suppressing the production and action of luteinizing hormone (LH) and follicle-stimulating hormone (FSH). In addition, cetrorelix can be used to treat hormone-sensitive cancers of the prostate[citation needed] and breast (in pre-/perimenopausal women)[citation needed] and some benign gynaecological disorders (endometriosis, uterine fibroids and endometrial thinning).[citation needed] It is administered as either multiple 0.25 mg daily subcutaneous injections or as a single-dose 3 mg subcutaneous injection. The duration of the 3 mg single dose is four days; if human chorionic gonadotropin (hCG) is not administered within four days, a daily 0.25 mg dose is started and continued until hCG is administered.
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Trade names | Cetrotide, others |
AHFS/Drugs.com | Monograph |
Routes of administration | Subcutaneous injection |
Drug class | GnRH analogue; GnRH antagonist; Antigonadotropin |
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Bioavailability | 85% |
Protein binding | 86% |
Elimination half-life | 62.8 hours / 3 mg single dose; 5 hours / 0.25 mg single dose; 20.6 hours / 0.25 mg multiple doses |
Excretion | feces (5% to 10% as unchanged drug and metabolites); urine (2% to 4% as unchanged drug) |
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ECHA InfoCard | 100.212.148 |
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Formula | C70H92ClN17O14 |
Molar mass | 1431.06 g·mol−1 |
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It is available as a generic medication.[2][3]