Kontrollert frigivelsessammensetning og metode for a produsere det samme

摘要

A controlled release composition comprises: (i) an active substance or its salts; and (ii) a lactic acid polymer or its salts having a weight-average molecular weight of 15000 - 50000 in which the content of polymers having molecular weights of = 5000 is = 5 wt.%. The composition optionally comprises hydroxynaphthoic acid (iii) or its salts. Independent claims are also included for: (1) a medicine comprising the control release composition; and (2) preparation of the controlled release composition involving removing a solvent from a mixed solution of (i), (ii) and optionally (iii). ACTIVITY : Cytostatic; Gynecological; Antitumor; Nootropic; Neuroprotective; Analgesic.