This group combines various medications that mimic the body effect of the products of glands of internal secretion, their homologues and antagonists. The main scope of "imitators" is an absolute or relative lack of appropriate hormones, antagonists — the need to remove the effect or its individual components.

• Androgens, antiandrogens
• Glucagon and its analogues

• Hormones of hypothalamus, pituitary and gonadotropins
• Hormones of thyroid and parathyroid glands

• Insulin
• Corticosteroids

• Estrogens, Progestogens