Cetrorelix
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From MedlinePlus, U.S. National Library of Medicine
Dosing in kidney impairment
CONTRAINDICATIONS Cetrotide ® (cetrorelix acetate for injection) is contraindicated under the following conditions: Hypersensitivity to cetrorelix acetate, extrinsic peptide hormones or mannitol. Known hypersensitivity to GnRH or any other GnRH analogs. Known or suspected pregnancy, and lactation (see PRECAUTIONS ). Severe renal impairment WARNINGS Cetrotide ® (cetrorelix acetate for injection) should be prescribed by physicians who are experienced in fertility treatment.
Preparation and administration
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Flip off the plastic cover of the vial and wipe the aluminum ring and the rubber stopper with an alcohol swab. Twist the injection needle with the yellow mark (20 gauge) on the pre-filled syringe. Push the needle through the center of the rubber stopper of the vial and slowly inject the solvent into the vial. Leaving the syringe in the vial, gently swirl the vial until the solution is clear and without residues.
Drug interactions
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Drug Interactions No formal drug interaction studies have been performed with Cetrotide ® .
Contraindications
Cetrotide ® (cetrorelix acetate for injection) is contraindicated under the following conditions: Hypersensitivity to cetrorelix acetate, extrinsic peptide hormones or mannitol. Known hypersensitivity to GnRH or any other GnRH analogs. Known or suspected pregnancy, and lactation (see PRECAUTIONS ). Severe renal impairment
Pregnancy and lactation
Pregnancy
Pregnancy (see CONTRAINDICATIONS ) Cetrotide ® is contraindicated in pregnant women. When administered to rats for the first seven days of pregnancy, cetrorelix acetate did not affect the development of the implanted conceptus at doses up to 38 μg/kg (approximately 1 times the recommended human therapeutic dose based on body surface area). However, a dose of 139 μg/kg (approximately 4 times the human dose) resulted in a resorption rate and a postimplantation loss of 100%.
When administered from day 6 to near term to pregnant rats and rabbits, very early resorptions and total implantation losses were seen in rats at doses from 4.6 μg/kg (0.2 times the human dose) and in rabbits at doses from 6.8 μg/kg (0.4 times the human dose). In animals that maintained their pregnancy, there was no increase in the incidence of fetal abnormalities. The fetal resorption observed in animals is a logical consequence of the alteration in hormonal levels effected by the antigonadotrophic properties of Cetrotide ® , which could result in fetal loss in humans as well. Therefore, this drug should not be used in pregnant women.
Lactation
Nursing Mothers It is not known whether Cetrotide ® is excreted in human milk. Because many drugs are excreted in human milk, and because the effects of Cetrotide ® on lactation and/or the breast-fed child have not been determined, Cetrotide ® should not be used by nursing mothers.
For breastfeeding, also see LactMed (National Library of Medicine), which summarizes milk levels and infant effects.
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