PROCESSES FOR MAKING PARTICLE-BASED PHARMACEUTICAL FORMULATIONS FOR PARENTERAL ADMINISTRATION

摘要

A method is provided for making a parenteral dosage form of a pharmaceutical agent which Includes (a) providing particles of a pharmaceutical agent; (b) blending the particles with particles of at least one bulking agent to form a first powder blend, which does not include a surfactant; (c) milling the first powder blend to form a milled blend which comprises microparticles or nanopartides of the pharmaceutical agent; and (d) reconstituting the milled blend with a liquid vehicle, which includes at least one surfactant, for parenteral administration. A method also is provided which includes (a) providing particles of a pharmaceutical agent; (b) blending these particles with particles of an excipient to form a first blend; and (c) milling the first blend to form a milled blend that includes microparticles or tianopartÊcles, which exhibits a greater dispersibility, wettability, and suspcndability as compared to the particles of step (a) or the first blend.