FIELD: medicine, gynecology. SUBSTANCE: invention proposes a new agent for inhibition of mammae pathological states: gynecomastia, galactorrhea, nonfibrous noncancer mastodinia and mastopathy. This agent is a compound of the formula (I): 
where R1 and R3 mean independently hydrogen, CH3, 
-(C1-C6-alkyl) or 
-Ar where At is an optionally substituted phenyl; R2 is taken from pyrrolidino-, hexamethyleneamino- and piperidino-groups, or its pharmaceutically acceptable salt or solvate. EFFECT: enhanced effectiveness of an agent, broadened pattern of agents. 4 cl, 2 ex
