Hormones
Gonadotrophin-releasing hormone is released in pulses by the hypothalamus and tells the pituitary when to produce FSH and LH. IVF protocols use synthetic GnRH agonists and antagonists to control this system and prevent ovulation happening before egg collection.
Also known as: gonadotrophin releasing hormone, gonadotropin-releasing hormone
Sources
- Royal Australian and New Zealand College of Obstetricians and Gynaecologists (ranzcog.edu.au)
Last reviewed: 10 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.