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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 |
| 6689386 |
Sustained release matrix for high-dose insoluble drugs |
Feb. 10, 2004 |
| 6682759 |
Manufacture of oral dosage forms delivering both immediate-release and sustained-release drugs |
Jan. 27, 2004 |
| 6676966 |
Extended release metformin hydrochloride formulations |
Jan. 13, 2004 |
| 6670407 |
Biofunctional polymers prepared in supercritical fluid |
Dec. 30, 2003 |
| 6663895 |
Stable shaped particles of crystalline organic compounds |
Dec. 16, 2003 |
| 6663889 |
Ambroxol-containing lozenge |
Dec. 16, 2003 |
| 6660300 |
Method of use of a biphasic controlled release delivery system for high solubility pharmaceuticals and method |
Dec. 9, 2003 |
| 6638532 |
Tetracycline--doxycycline antibiotic composition |
Oct. 28, 2003 |
| 6638536 |
Stable shaped particles of crystalline organic compounds |
Oct. 28, 2003 |
| 6635276 |
Oral or mucosal preparation containing an active ingredient, with controlled active ingredient release, and its use |
Oct. 21, 2003 |
| 6635281 |
Gastric retaining oral liquid dosage form |
Oct. 21, 2003 |
| 6635280 |
Extending the duration of drug release within the stomach during the fed mode |
Oct. 21, 2003 |
| 6632453 |
Ciprofoxacin-metronidazole antibiotic composition |
Oct. 14, 2003 |
| 6630162 |
Pharmaceutical formulation and its use |
Oct. 7, 2003 |
| 6627223 |
Timed pulsatile drug delivery systems |
Sep. 30, 2003 |
| 6627214 |
Ibuprofen composition |
Sep. 30, 2003 |
| 6627222 |
Amoxicillin-dicloxacillin antibiotic composition |
Sep. 30, 2003 |
| 6623756 |
Directly compressed solid dosage articles |
Sep. 23, 2003 |
| 6620432 |
Phenytoin sodium pharmaceutical compositions |
Sep. 16, 2003 |
| 6610323 |
Oral pharmaceutical pulsed release dosage form |
Aug. 26, 2003 |
| 6610328 |
Amoxicillin-clarithromycin antibiotic composition |
Aug. 26, 2003 |
| 6605300 |
Oral pulsed dose drug delivery system |
Aug. 12, 2003 |
| 6605303 |
Oral pharmaceutical extended release dosage form |
Aug. 12, 2003 |
| 6599931 |
Test system for characterizing the compatibility of bioactive substances and polyvinylpyrrolidone |
Jul. 29, 2003 |
| 6599529 |
Modified release multiple-units compositions of non-steroid anti-inflammatory drug substances (NSAIDs) |
Jul. 29, 2003 |
| 6596844 |
Controlled release polyacrylic acid granules and a process for preparing the same |
Jul. 22, 2003 |
| 6596311 |
Fast disintegrating tablets |
Jul. 22, 2003 |
| 6592902 |
Controlled release eplerenone compositions |
Jul. 15, 2003 |
| 6592897 |
Slow release tablet prepared from linear water-insoluble polysacchrides |
Jul. 15, 2003 |
| 6576260 |
Sustained-release form of administration containing tramadol saccharinate |
Jun. 10, 2003 |
| 6572889 |
Controlled release solid dosage carbamazepine formulations |
Jun. 3, 2003 |
| 6569455 |
Quick-release extrudates, method for preparing the same and compositions obtained from said extrudates |
May. 27, 2003 |
| 6565883 |
Controlled release oral compositions comprising rivastigmine |
May. 20, 2003 |
| 6558703 |
Porous hydroxyapatite particles as carriers for drug substances |
May. 6, 2003 |
| 6558700 |
Multiple-unit sustained release tablets |
May. 6, 2003 |
| 6558701 |
Multilayer tablet for administering a fixed combination of tramadol and diclofenac |
May. 6, 2003 |
| 6558699 |
High drug load immediate and modified release oral dosage formulations and processes for their manufacture |
May. 6, 2003 |
| 6555137 |
Sucralfate-containing composition and process for the preparation thereof |
Apr. 29, 2003 |
| 6555136 |
Pharmaceutical dosage form for pulsatile delivery of methylphenidate |
Apr. 29, 2003 |
| 6551618 |
Compositions and methods for delivery of agents for neuronal regeneration and survival |
Apr. 22, 2003 |
| 6551617 |
Taste masking coating composition |
Apr. 22, 2003 |
| 6551620 |
Pellet formulation for the treatment of the intestinal tract |
Apr. 22, 2003 |
| 6548083 |
Prolonged release active agent dosage form adapted for gastric retention |
Apr. 15, 2003 |
| 6544556 |
Pharmaceutical formulations containing a non-steroidal antiinflammatory drug and a proton pump inhibitor |
Apr. 8, 2003 |
| 6544553 |
Dosage forms and methods for oral delivery of progesterone |
Apr. 8, 2003 |
| 6537580 |
Stable shaped particles of crystalline organic compounds |
Mar. 25, 2003 |
| 6534089 |
Uniform drug delivery therapy |
Mar. 18, 2003 |
| 6534090 |
Oral osmotic controlled drug delivery system for a sparingly soluble drug |
Mar. 18, 2003 |
| 6534088 |
Fibrate-statin combinations with reduced fed-fasted effects |
Mar. 18, 2003 |
| 6531158 |
Drug delivery system for enhanced bioavailability of hydrophobic active ingredients |
Mar. 11, 2003 |
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