ATC Group: H01CA Gonadotropin-releasing hormones

The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.

Position of H01CA in the ATC hierarchy

Level Code Title
1 H Systemic hormonal preparations, excl. Sex hormones and insulins
2 H01 Pituitary and hypothalamic hormones and analogues
3 H01C Hypothalamic hormones
4 H01CA Gonadotropin-releasing hormones

Group H01CA contents

Code Title
H01CA01 Gonadorelin
H01CA02 Nafarelin

Active ingredients in H01CA

Active Ingredient Description

Gonadorelin stimulates the synthesis of follicle stimulating hormone and luteinising hormone in the anterior lobe of the pituitary as well as their release.


Nafarelin is a potent agonistic analogue of gonadotrophin releasing hormone (GnRH). Given as a single dose, nafarelin stimulates release of the pituitary gonadotrophins, LH and FSH, with consequent increase of ovarian and testicular steroidogenesis.

Related product monographs

Title Information Source Document Type  
SYNAREL Nasal spray, solution Medicines & Healthcare Products Regulatory Agency (GB) MPI, EU: SmPC