Cetrorelix

Cetrorelix

Clinical data
Pregnancy category	US: X (Contraindicated)
Routes of administration	Subcutaneous injection
ATC code	H01CC02 (WHO)
Legal status
Legal status	US: ℞-only
Pharmacokinetic data
Bioavailability	85%
Protein binding	86%
Elimination half-life	62.8 hours / 3mg single dose
Excretion	Liver
Identifiers
IUPAC name Acetyl-D-3-(2´-naphtyl)-alanine- D-4-chlorophenylalanine-D-3-(3´-pyridyl)- alanine-L-serine-L-tyrosine-D-citruline-L- leucine-L-arginine-L-proline-D- alanine-amide
CAS Number	120287-85-6
DrugBank	APRD00686
E number	{{#property:P628}}
ECHA InfoCard	{{#property:P2566}}
Chemical and physical data
Molar mass	1431.06 g/mol

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Cetrorelix acetate is an injectable gonadotropin-releasing hormone antagonist (GnRH antagonist). A synthetic decapeptide, it is used to treat hormone-sensitive cancers of the prostate and breast (in pre-/perimenopausal women) and some benign gynaecological disorders (endometriosis, uterine fibroids and endometrial thinning). In addition, cetrorelix is used in assisted reproduction. The drug works by blocking the action of GnRH upon the pituitary, thus rapidly suppressing the production and action of LH and FSH. It is administered as a daily or weekly subcutaneous injection.

Cetrorelix is marketed by Solvay Pharmaceuticals as Cetrotide.