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Cetrorelix Acetate

Published: July 26, 2026Updated: August 27, 2026

Cetrorelix Acetate is a synthetic decapeptide that functions as a gonadotropin-releasing hormone (GnRH) antagonist. It is primarily used in assisted reproductive technology to prevent premature ovulation in women undergoing controlled ovarian stimulation for in vitro fertilization. By suppressing luteinizing hormone surges, it allows for optimal timing of egg retrieval.

Quick summary

Cetrorelix Acetate is a GnRH antagonist used to prevent premature ovulation during fertility treatments.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 2026Editorial policy

Key facts at a glance

RxNorm
259338
Generic
Cetrorelix Acetate
Class
pin-variant
Brands
—
Availability
rx
Lactation
unknown
Routes
—
Forms
—
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Prevents premature luteinizing hormone surges in women undergoing controlled ovarian stimulation for assisted reproductive technologies such as in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI).

Acts as a competitive antagonist at pituitary GnRH receptors, blocking the action of endogenous GnRH and thereby suppressing the secretion of gonadotropins (FSH and LH) in a dose-dependent manner.

Administered by subcutaneous injection. Should be used only under supervision of a specialist in reproductive medicine. Common side effects may include local injection site reactions and mild nausea. Not indicated for pregnancy or use in those with known hypersensitivity to the drug.

Official drug label

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Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy