| | | H - Systemic Hormonal Preparations, Excl. Sex Hormones and Insulins |  | This group comprises all hormonal preparations for systemic use, except:- Insulins, see A10.
 - Anabolic steroids, see A14.
 - Catecholamines, see C01C and R03C.
 - Sex hormones, see G03.
 - Sex hormones used in treatment of neoplastic diseases, see L02.
 - Metreleptin used for treatment of complications of leptin deficiency in patients with generalised lipodystrophy is classified in A16AA.
 
 |  | The DDDs are generally based on the treatment or diagnosis of endocrine disorders.
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 |  | | H01 - Pituitary and Hypothalamic Hormones and Analogues |  |  | 
 |  | | H01C - Hypothalamic Hormones |  | This group comprises hypothalamic hormones; extracts, purified natural hormones and synthetic analogues.Hypothalamic hormones used as diagnostic agents for pituitary function are classified in V04CD.
 
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 |  | | H01CA - Gonadotropin-Releasing Hormones |  | Buserelin, goserelin, histrelin, leuprorelin, and triptorelin are classified in L02AE Gonadotropin releasing hormone analogues.Gonadorelin used as diagnostic agent is classified in V04CM.
 
 |  | The DDD of nafarelin is based on the treatment of endometriosis. No other DDDs have been assigned, due to the highly variable dosages used.
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