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Class Information
Number: 424/469
Name: Drug, bio-affecting and body treating compositions > Preparations characterized by special physical form > Tablets, lozenges, or pills > Sustained or differential release type > Discrete particles in supporting matrix
Description: Subject matter in which discrete soluble particles of the active ingredient are positioned or dispersed in a solid, generally insoluble matrix from which said particles are leached sequentially under conditions of use from the outside portions of the matrix inwardly.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6033685 |
Tablet for the controlled release of active agents |
Mar. 7, 2000 |
| 6024981 |
Rapidly dissolving robust dosage form |
Feb. 15, 2000 |
| 6013281 |
Method of making a pharmaceutical dosage form comprising a proton pump inhibitor |
Jan. 11, 2000 |
| 5998431 |
Sustained-release matrices for dental application |
Dec. 7, 1999 |
| 5980942 |
Zero-order sustained release matrix tablet formulations of carbamazepine |
Nov. 9, 1999 |
| 5976570 |
Method for preparing low dose pharmaceutical products |
Nov. 2, 1999 |
| 5965166 |
Directly compressible high load acetaminophen formulations |
Oct. 12, 1999 |
| 5965163 |
Substained release compositions and a method of preparing pharmaceutical compositions |
Oct. 12, 1999 |
| 5958458 |
Pharmaceutical multiple unit particulate formulation in the form of coated cores |
Sep. 28, 1999 |
| 5942248 |
Pharmaceutical composition containing a low detergent effect bile salt and an active compound that undergoes biliary excretion and/or enterohepatic recycling |
Aug. 24, 1999 |
| 5942242 |
Medicaments for nasal administration |
Aug. 24, 1999 |
| 5942244 |
Local oral herbal slow release tablets |
Aug. 24, 1999 |
| 5928666 |
Crystalline form of estradiol and pharmaceutical formulations comprising same |
Jul. 27, 1999 |
| 5922356 |
Sustained release formulation |
Jul. 13, 1999 |
| 5910322 |
Delayed release pharmaceutical formulation containing amoxycillin and potassium clavulanate |
Jun. 8, 1999 |
| 5906833 |
Chronological food bar |
May. 25, 1999 |
| 5900425 |
Pharmaceutical preparations having controlled release of active compound and processes for their preparation |
May. 4, 1999 |
| 5889028 |
Colonic delivery of nicotine to treat inflammatory bowel disease |
Mar. 30, 1999 |
| 5879714 |
Controlled-release pharmaceutical compositions |
Mar. 9, 1999 |
| 5869097 |
Method of therapy comprising an osmotic caplet |
Feb. 9, 1999 |
| 5866163 |
Process and apparatus for making rapidly dissolving dosage units and product therefrom |
Feb. 2, 1999 |
| 5866169 |
Formulations and methods of use of 2,2'-dithio-bis-ethane sulfonate |
Feb. 2, 1999 |
| 5853756 |
Controlled release formulations of Ranitidine |
Dec. 29, 1998 |
| 5853762 |
Delivery of controlled-release system(s) |
Dec. 29, 1998 |
| 5849329 |
Process for preparing pharmaceutical composition having an increased active substance dissolution rate, and the compositions obtained |
Dec. 15, 1998 |
| 5849327 |
Delivery of drugs to the lower gastrointestinal tract |
Dec. 15, 1998 |
| 5843925 |
Methods for inhibiting angiogenesis, proliferation of endothelial or tumor cells and tumor growth |
Dec. 1, 1998 |
| 5843480 |
Controlled release diamorphine formulation |
Dec. 1, 1998 |
| 5840336 |
Two-phase matrix for sustained release drug delivery device |
Nov. 24, 1998 |
| 5840334 |
Self-binding shearform compositions |
Nov. 24, 1998 |
| 5840330 |
Process for the preparation of shaped, compressed controlled-release unit-dosage forms, and the compressed unit-dosage forms thus obtained |
Nov. 24, 1998 |
| 5840329 |
Pulsatile drug delivery system |
Nov. 24, 1998 |
| 5817338 |
Multiple unit tableted dosage form of omeprazole |
Oct. 6, 1998 |
| 5814607 |
Pulmonary delivery of active fragments of parathyroid hormone |
Sep. 29, 1998 |
| 5807579 |
Pseudoephedrine combination pharmaceutical compositions |
Sep. 15, 1998 |
| 5766623 |
Compactable self-sealing drug delivery agents |
Jun. 16, 1998 |
| 5762950 |
Bioceramic system for delivery of bioactive compounds |
Jun. 9, 1998 |
| 5760094 |
Hydrolyzed gelatin as a flavor enhancer in a chewable tablet |
Jun. 2, 1998 |
| 5756125 |
Controlled release naproxen sodium plus naproxen combination tablet |
May. 26, 1998 |
| 5753253 |
Composition and method for inducing satiety |
May. 19, 1998 |
| 5744166 |
Drug delivery compositions |
Apr. 28, 1998 |
| 5741519 |
The production of active substance compositions in the form of a solid solution of the active substance in a polymer matrix, and active substance compositions produced by this process |
Apr. 21, 1998 |
| 5733574 |
Nicotine containing stimulant unit |
Mar. 31, 1998 |
| 5728403 |
Coating technology for taste masking orally administered bitter drugs |
Mar. 17, 1998 |
| 5716641 |
Simethicone containing pharmaceutical compositions |
Feb. 10, 1998 |
| 5709882 |
Pharmaceutical formulations containing a pharmacologically active ionizable substance as well as a process for the preparation thereof |
Jan. 20, 1998 |
| 5709876 |
Saccharide-based matrix |
Jan. 20, 1998 |
| 5707652 |
Methods of treating circadian rhythm phase disorders |
Jan. 13, 1998 |
| 5707656 |
Pharmaceutical formulations containing a pharmacologically active ionizable substance as well as process for the preparation thereof |
Jan. 13, 1998 |
| 5695781 |
Sustained release formulation containing three different types of polymers |
Dec. 9, 1997 |
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