FIELD: medicine, pharmacy. SUBSTANCE: invention relates to pharmaceutical preparations used for treatment of acute and chronic diseases or urinary ways (pyelonephritis, urethritis, cystitis, prostatitis and others). Uroantiseptic agent comprises pipemidinic acid as an active component and lactose, stearic acid or its salts and aerosil as special accessory components. Pipemidinic acid can be presented as trihydrate. Invention provides the high technological effectiveness of preparing this drug, guaranteed decomposition and rapid release of drugs from the composition using available components. EFFECT: improved properties, enhanced effectiveness of agent. 4 cl, 1 ex
