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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 |
| 6528094 |
Stable shaped particles of crystalline organic compounds |
Mar. 4, 2003 |
| 6524618 |
Directly compressible extended-release matrix formulation for metformin hydrochloride |
Feb. 25, 2003 |
| 6521261 |
Pharmaceutical excipient having improved compressibility |
Feb. 18, 2003 |
| 6517866 |
Sertraline salts and sustained-release dosage forms of sertraline |
Feb. 11, 2003 |
| 6517868 |
Amino acid modulated extended release dosage form |
Feb. 11, 2003 |
| 6514531 |
Controlled-release dosage forms comprising zolpidem or a salt thereof |
Feb. 4, 2003 |
| 6500457 |
Oral pharmaceutical dosage forms for pulsatile delivery of an antiarrhythmic agent |
Dec. 31, 2002 |
| 6492488 |
Controlled release polyacrylic acid granules and a process for preparing the same |
Dec. 10, 2002 |
| 6488962 |
Tablet shapes to enhance gastric retention of swellable controlled-release oral dosage forms |
Dec. 3, 2002 |
| 6485743 |
Method and composition of an oral preparation of itraconazole |
Nov. 26, 2002 |
| 6485759 |
Botanical combinations for treating AIDS and immune-deficient patients to maintain good health and the process for preparing the same |
Nov. 26, 2002 |
| 6482434 |
Method for reducing adverse effects of a weight loss regimen |
Nov. 19, 2002 |
| 6475521 |
Biphasic controlled release delivery system for high solubility pharmaceuticals and method |
Nov. 5, 2002 |
| 6468959 |
Peroral dosage form for peptide containing medicaments, in particular insulin |
Oct. 22, 2002 |
| 6468976 |
Monohydrate lisinopril |
Oct. 22, 2002 |
| 6462022 |
Lisinopril compositions having large-particle DCPD |
Oct. 8, 2002 |
| 6451345 |
Functional coating of linezolid microcapsules for taste-masking and associated formulation for oral administration |
Sep. 17, 2002 |
| 6419960 |
Controlled release formulations having rapid onset and rapid decline of effective plasma drug concentrations |
Jul. 16, 2002 |
| 6419952 |
Conversion of liquid filled gelatin capsules into controlled release systems by multiple coatings |
Jul. 16, 2002 |
| 6414050 |
Biofunctional polymers prepared in supercritical fluid |
Jul. 2, 2002 |
| 6399096 |
Pharmaceutical formulation |
Jun. 4, 2002 |
| 6399100 |
Controlled release pharmaceutical compositions containing tiagabine |
Jun. 4, 2002 |
| 6391338 |
System for rendering substantially non-dissoluble bio-affecting agents bio-available |
May. 21, 2002 |
| 6372255 |
Tablet for instant and prolonged release of one or more active substances |
Apr. 16, 2002 |
| 6365184 |
Oral pharmaceutical dosage forms comprising a proton pump inhibitor and a NSAID |
Apr. 2, 2002 |
| 6365180 |
Oral liquid compositions |
Apr. 2, 2002 |
| 6365185 |
Self-destructing, controlled release peroral drug delivery system |
Apr. 2, 2002 |
| 6358531 |
Method for preparing porous shells or gels from glass particles |
Mar. 19, 2002 |
| 6358533 |
Pharmaceutical excipient having improved compressibility |
Mar. 19, 2002 |
| 6352722 |
Derivatized carbohydrates, compositions comprised thereof and methods of use thereof |
Mar. 5, 2002 |
| 6348216 |
Ibuprofen and narcotic analgesic compositions |
Feb. 19, 2002 |
| 6340476 |
Pharmaceutical dosage form for pulsatile delivery of methylphenidate |
Jan. 22, 2002 |
| 6340475 |
Extending the duration of drug release within the stomach during the fed mode |
Jan. 22, 2002 |
| 6338857 |
Sustained release carbamazepine pharmaceutical composition free of food effect and a method for alleviating food effect in drug release |
Jan. 15, 2002 |
| 6319518 |
Colon selective drug delivery composition |
Nov. 20, 2001 |
| 6306439 |
Expandable pharmaceutical forms |
Oct. 23, 2001 |
| 6306438 |
Stabilized sustained release tramadol formulations |
Oct. 23, 2001 |
| 6306427 |
Pellets containing active ingredients protected against degradation in the rumen of ruminants |
Oct. 23, 2001 |
| 6296842 |
Process for the preparation of polymer-based sustained release compositions |
Oct. 2, 2001 |
| 6296873 |
Zero-order sustained release delivery system for carbamazephine derivatives |
Oct. 2, 2001 |
| 6294201 |
Osmotic medicament releasing system |
Sep. 25, 2001 |
| 6287693 |
Stable shaped particles of crystalline organic compounds |
Sep. 11, 2001 |
| 6284273 |
Cross-linked high amylose starch resistant to amylase as a matrix for the slow release of biologically active compounds |
Sep. 4, 2001 |
| 6280771 |
Dosage forms exhibiting multi-phasic release kinetics and methods of manufacture thereof |
Aug. 28, 2001 |
| 6277406 |
Easily processed tablet compositions |
Aug. 21, 2001 |
| 6277405 |
Fenofibrate pharmaceutical composition having high bioavailability and method for preparing it |
Aug. 21, 2001 |
| 6274174 |
Aggregates of spherical multivalent metal alginate microparticles and methods of making them |
Aug. 14, 2001 |
| 6270797 |
Sustained release pharmaceutical composition containing glipizide and method for producing same |
Aug. 7, 2001 |
| 6267986 |
Process for the preparation of a controlled drug delivery system containing pseudoephedrine and a long acting antihistamine |
Jul. 31, 2001 |
| 6261601 |
Orally administered controlled drug delivery system providing temporal and spatial control |
Jul. 17, 2001 |
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