Soluble form osmotic dose delivery system
First Claim
1. 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; and
(iii) at least one non-swelling osmotic agent, 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.
4 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is 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; (b) a single, homogeneous composition within said wall, which composition consists essentially of (i) a pharmaceutically active agent, (ii) at least one non-swelling solubilizing agent which enhances the solubility of the pharmaceutically active agent; (iii) at least one non-swelling osmotic agent and (iv) a non-swelling wicking agent dispersed throughout the composition which enhances the surface area contact of the pharmaceutical agent with the incoming aqueous fluid.
128 Citations
26 Claims
-
1. 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; and
(iii) at least one non-swelling osmotic agent, 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
- and (b) a composition within said wall, which composition comprises (i) a pharmaceutical agent that has a limited solubility in water or physiological environments;
Specification