FIELD: medicine, peptides, pharmacy. SUBSTANCE: invention relates to stable liquid aqueous preparations of peptide compounds in high concentrations. These stable preparations comprise at least about 15% of peptide in water. Invention relates also to method of preparing indicated preparations and method of treatment of hormone-dependent diseases with indicated preparations, in part, prostate cancer. Invention ensures to store preparations at increased temperatures (37 C) for long time and to use their in implantable delivery devices for prolonged delivery of medicinal substance. EFFECT: improved method of preparing preparation and treatment of disease. 27 cl, 9 tbl, 8 dwg, 7 ex
