METHOD FOR CONTROLLING SEXUAL BEHAVIOUR AND CONTRACEPTION IN FEMALE MAMMALS

摘要

The invention relates to the veterinary field, in particular, to a method for temporarily blocking sexual function in female mammals, including behavioural phenomena (search for a partner, vocalization, etc.). The method for controlling sexual behaviour and contraception in female animals comprises administering melatonin, a gestagen and an adrenergic blocking agent, which is tropic to the posterior nucleus of the hypothalamus, wherein the combination of said biologically active substances (BAS) is administered as a single therapeutic dose during any period of the sexual cycle. The pharmaceutical composition for controlling sexual behaviour of female animals, which is intended for the transdermal administration "Spot-on", has a pH in the range of 4.0 to 6.0 and comprises therapeutic quantities of melatonin, a gestagen and an adrenergic blocking agent, which is tropic to the posterior nucleus of the hypothalamus, at the following ratio of the components (wt%): gestagen - therapeutic quantities; melatonin - therapeutic quantities; adrenergic blocking agent, tropic to the posterior nucleus of the hypothalamus - therapeutic quantities; N-methyl-N-(1,2R,3R,4R,5S-pentahydroxyhexyl)octadecanamide - 0.5; D-panthenol - 0.5; polyoxyethylated α-tocopherol - 10; polyoxyethylated lanolin - 1; 3-(octadecyloxy)-1,2-propanediol - 0.1; carboxylic acid - 0.1÷1.1; N,N-diethyltoluamid - 15; 1,2-isopropylidene glycerol -20; 1,2,3-triacetoxypropane - up to 100. The invention makes it possible, while using the minimal dose of the steroid hormone harmful to animal health, to inhibit sexual behaviour of female animals for the period of 2 months to half a year (depending on the length of the daytime period). The pharmaceutical composition is intended for transdermal administration. The pharmaceutical composition can be used in humane medicine for effective and safe contraception in the form of metered dose transdermal sprays for convenient application.