By Neus Ferrando Gilabert BSc, MSc (embryologist).
Last Update: 11/28/2014

The GnRH analogues are molecules synthesised in the laboratory that are provided to women who are going to undergo a fertility treatment, such as artificial insemination, in vitro fertilization or ICSI.

Administration of the analogues of the GnRH

Its prescription is especially indicated for the following cases:

  • Women with Polycystic Ovary Syndrome (PCOS) and high LH basal blood plasma levels.
  • Women with Polycystic Ovary Syndrome and an increased androgenic concentration in blood.
  • When what is intended is to avoid premature peaks of luteinising hormone (LH) in previous cycles, which would provoke the early luteinisation of the follicles, and subsequently, the production of bad quality oocytes.

Authors and contributors

 Neus Ferrando Gilabert
BSc, MSc
Bachelor's Degree in Biology from the University of Valencia (UV). Postgraduate Course in Biotechnology of Human Assisted Reproduction from the Miguel Hernández University of Elche (UMH). Experience managing Embryology and Andrology Labs at Centro Médico Manzanera (Logroño, Spain). More information