Injectable GnRH antagonist used to prevent premature ovulation during fertility treatment.
Also known as: Orgalutran · Antagon · GnRH antagonist
Part of the Foundational & therapeutic peptides cluster
Overview
Ganirelix is a synthetic decapeptide GnRH antagonist that competitively blocks the pituitary GnRH receptor. It is an approved prescription medicine used during controlled ovarian stimulation to prevent premature ovulation. This page is educational and is not medical advice.
Source & context
Biological / chemical source: Synthetic decapeptide analog of GnRH
Primary research or clinical context: Approved medicine used in assisted reproduction to control ovulation timing (prescription)
Use in fertility protocols
Ganirelix is given by daily subcutaneous injection during the stimulation phase of in-vitro fertilization. By suppressing the endogenous luteinizing hormone surge, it helps clinicians control the exact timing of egg retrieval.
Structural strategy
Ganirelix carries several D-amino-acid and other non-natural residue substitutions along the GnRH sequence. This medicinal-chemistry approach yields immediate, reversible receptor blockade with good metabolic stability.
FAQ about Ganirelix
What is Ganirelix?+
Ganirelix is a synthetic decapeptide GnRH antagonist that competitively blocks the pituitary GnRH receptor. It is an approved prescription medicine used during controlled ovarian stimulation to prevent premature ovulation. This page is educational and is not medical advice.
Is Ganirelix an approved medicine?+
Ganirelix: Approved medicine used in assisted reproduction to control ovulation timing (prescription). Always follow licensed medical guidance for approved products.
What is the typical length of Ganirelix?+
Ganirelix is commonly described as approximately 10 amino acids (GnRH antagonist (decapeptide analog)).

