Patent ID: 8148338

Claim:
A dry doxorubicin composition, wherein the dry composition dissolved in an injectable aqueous media, is suitable for administration by injection; said dry doxorubicin composition is produced by a process comprising the steps of: a) first forming a solution by dissolving in an aqueous medium: i) a predetermined amount of doxorubicin or pharmaceutically acceptable salt thereof; ii) a polyoxyethylene polyoxypropylene copolymer mixture, wherein the copolymer mixture contains two block copolymers, one of which is a hydrophobic copolymer having an ethylene oxide content of from about 10% to about 50% by weight of the copolymer mixture and the other block copolymer being a hydrophilic copolymer having an ethylene oxide content of from about 50% by weight to about 90% by weight of the copolymer mixture; and iii) from about 2.5 to 25 parts by weight of lactose, based upon the weight of the doxorubicin or its salts; and b) thereafter drying such solution.