Patent ID: 6110498
Filing Date: 2000-08-29
Classification: A61K,Y10S

Abstract:
An osmotic pharmaceutical delivery system comprising (a) a semipermeable wall that maintains its integrity during pharmaceutical delivery and which has at least one passage therethrough; and (b) a composition within said wall, which composition comprises (i) a pharmaceutical agent that has a limited solubility in water or physiological environments; (ii) at least one non-swelling solubilizing agent which enhances the solubility of the pharmaceutical agent; (iii) at least one non-swelling ostmotic agent and (iv) a non-swelling wicking agent dispersed throughout the composition, said composition being free of an agent that provides a physical force other than by osmotic pressure for delivering the pharmaceutical agent whereby the pharmaceutical agent is delivered through the passageway by osmosis rather than by another force.