Osmotic dosage system for delivering a formulation comprising liquid carrier and drug
First Claim
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1. An osmotic system for delivering at a controlled rate a beneficial agent formulation to a fluid environment of use, wherein the osmotic system comprises:
- (a) a gelatin capsule comprising a body and a cap joined to provide an internal lumen;
(b) a dosage amount of a beneficial agent liquid formulation in the lumen;
(c) an osmagent composition on the outside wall of the capsule;
(d) a semipermeable composition surrounding the osmagent composition; and
(e) at least one orifice that communicates with the exterior and the lumen for delivering the beneficial agent liquid formulation from the osmotic system.
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Abstract
An osmotic system is disclosed for delivering a beneficial agent formulation to an environment of use. The osmotic system comprises (a) an outside semipermeable wall, (b) a middle osmotically active layer, (c) a capsule comprising a beneficial agent, and (d) a passageway for dispensing the beneficial agent from the osmotic system.
154 Citations
26 Claims
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1. An osmotic system for delivering at a controlled rate a beneficial agent formulation to a fluid environment of use, wherein the osmotic system comprises:
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(a) a gelatin capsule comprising a body and a cap joined to provide an internal lumen; (b) a dosage amount of a beneficial agent liquid formulation in the lumen; (c) an osmagent composition on the outside wall of the capsule; (d) a semipermeable composition surrounding the osmagent composition; and (e) at least one orifice that communicates with the exterior and the lumen for delivering the beneficial agent liquid formulation from the osmotic system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An osmotic system for delivering at a controlled rate a beneficial agent formulation to a fluid environment of use, the osmotic system comprising:
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(a) a wall in at least a part comprising a semipermeable composition, which wall surrounds; (b) a layer comprising an osmopolymer composition, which layer surrounds; (c) a gelatin capsule comprising a body and a matching cap telescopically joined to provide a lumen; (d) a dosage amount of a therapeutically active drug liquid formulation in the lumen; and
,(e) at least one orifice communicating with the lumen and the exterior of the osmotic system for delivering the therapeutically active drug from the osmotic system. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An osmotic system for delivering at a controlled rate a beneficial agent formulation to a fluid environment of use, the osmotic system comprising:
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(a) a wall in at least a part comprising a semipermeable composition that substantially maintains its integrity in the environment of use, is permeable to the passage of fluid present in the environment of use and is substantially impermeable to the passage of beneficial agent formulation, which wall surrounds; (b) a layer comprising an osmotically effective solute, the layer surrounding; (c) a one piece gelatin capsule comprising a lumen; (d) a beneficial agent liquid formulation in the lumen; and
,(e) at least one orifice that communicates with the lumen and the exterior of the osmotic system for delivering the beneficial agent formulation from the osmotic system. - View Dependent Claims (17, 18, 19, 20)
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21. An osmotic system for delivering at a controlled rate a beneficial agent formulation to a fluid environment of use, wherein the osmotic system comprises:
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(a) a wall comprising a composition that is permeable to the passage of fluid and impermeable to the passage of agent, which wall surrounds; (b) a layer comprising an osmopolymer, which layer surrounds; (c) a one piece gelatin capsule comprising a lumen; (d) a beneficial agent liquid formulation in the lumen; and
,(e) at least one orifice that communicates with the lumen and the exterior of the osmotic system for delivering the beneficial agent formulation from the osmotic system. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification