By Neus Ferrando Gilabert BSc, MSc (embryologist).
Last Update: 05/04/2014

GnRH analogues are artificially synthesised molecules and administered as a medicine in women who will undergo a fertility treatment as in the case of artificial insemination, in vitro fertilisation or ICSI.

Its prescription is specially indicated in the following cases:

  • Women with Polycystic Ovarian Syndrome (PCOS) and high blood plasma basal levels of LH.
  • Women with Polycystic Ovarian Syndrome (PCOS) and an increased blood plasma androgen concentration.
  • When it is intended to avoid premature peaks of luteinizing hormone (LH) in previous cycles which would cause the early luteinization of follicles and the production of poor quality oocytes.

Indicated for PCOS

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