Cetrorelix
Cetrotide is a brand-name fertility medication used to prevent premature ovulation in women undergoing controlled ovarian stimulation for assisted reproductive technologies such as in vitro fertilization (IVF). It is a GnRH antagonist that works by blocking hormone signals that trigger ovulation, allowing healthcare providers to better control the timing of egg release.
Cetrotide is a fertility injection used during IVF treatment to prevent early ovulation.
Key facts at a glance
- RxNorm
- 284693
- Generic
- Cetrotide
- Class
- brand-name
- 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.
Cetrotide is used in women undergoing controlled ovarian stimulation for assisted reproductive technologies, particularly in vitro fertilization (IVF) cycles. It helps prevent premature ovulation before eggs can be retrieved.
Cetrotide is a GnRH (gonadotropin-releasing hormone) antagonist. It works by blocking GnRH receptors in the pituitary gland, which prevents the surge of luteinizing hormone (LH) that normally triggers ovulation. This allows eggs to mature fully before they are retrieved.
Cetrotide is administered as a subcutaneous injection, typically in the abdomen. It should only be used under the supervision of a fertility specialist. Women who are pregnant, have kidney impairment, or are allergic to cetrorelix or mannitol should not use this medication. Common side effects may include injection site reactions, nausea, and headache.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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 July 26, 2026. · Read our editorial policy