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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 |
| 6251431 |
Moth and insect repellant |
Jun. 26, 2001 |
| 6248359 |
Multi-tablet oxybutynin system for treating incontinence |
Jun. 19, 2001 |
| 6248358 |
Bioadhesive progressive hydration tablets and methods of making and using the same |
Jun. 19, 2001 |
| 6238698 |
Oral preparation containing at least one active pharmaceutical substance in a matrix capable of swelling in an aqueous medium |
May. 29, 2001 |
| 6238697 |
Methods and formulations for making bupropion hydrochloride tablets using direct compression |
May. 29, 2001 |
| 6228398 |
Multiparticulate modified release composition |
May. 8, 2001 |
| 6221392 |
Rapidly dissolving robust dosage form |
Apr. 24, 2001 |
| 6221393 |
Pharmaceutical compositions in the form of sustained-release tablets based on high molecular weight polysaccharide granules |
Apr. 24, 2001 |
| 6210714 |
Immediate release tablet cores of acetaminophen having sustained-release coating |
Apr. 3, 2001 |
| 6207188 |
Omeprazole sodium salt |
Mar. 27, 2001 |
| 6207198 |
Composition containing an acid-labile omeprazole and process for its preparation |
Mar. 27, 2001 |
| 6203817 |
Reduction of skin reactions caused by transdermal drug delivery |
Mar. 20, 2001 |
| 6197347 |
Oral dosage for the controlled release of analgesic |
Mar. 6, 2001 |
| 6194005 |
Method for preparing a pharmaceutical composition with modified release of the active principle, comprising a matrix |
Feb. 27, 2001 |
| 6190697 |
Effervescent formulation containing plant extract |
Feb. 20, 2001 |
| 6187339 |
Solid pharmaceutical composition comprising an excipient capable of binding water |
Feb. 13, 2001 |
| 6183776 |
Oral pharmaceutical dosage forms comprising a proton pump inhibitor and an antacid agent or alginate |
Feb. 6, 2001 |
| 6174873 |
Oral administration of adenosine analogs |
Jan. 16, 2001 |
| 6165512 |
Dosage forms containing taste masked active agents |
Dec. 26, 2000 |
| 6162466 |
Sustained release formulation of carbamazepine |
Dec. 19, 2000 |
| 6162467 |
Sustained release compositions and a method of preparing pharmaceutical compositions |
Dec. 19, 2000 |
| 6162465 |
Method and an industrial process for determining dose-level characteristics of a multiple unit system |
Dec. 19, 2000 |
| 6156339 |
Process for preparing solid pharmaceutical dosage forms |
Dec. 5, 2000 |
| 6149943 |
Microcrystalline cellulose particles having active core |
Nov. 21, 2000 |
| 6143328 |
Sustained release compositions and a method of preparing pharmaceutical compositions |
Nov. 7, 2000 |
| 6139877 |
Spheroids containing tiagabine, preparation process and pharmaceutical compositions |
Oct. 31, 2000 |
| 6136327 |
Stereospecific delivery of a drug using electrotransport |
Oct. 24, 2000 |
| 6136344 |
Oral pharmaceutical dosage form |
Oct. 24, 2000 |
| 6132771 |
Oral pharmaceutical dosage forms comprising a proton pump inhibitor and a prokinetic agent |
Oct. 17, 2000 |
| 6120803 |
Prolonged release active agent dosage form adapted for gastric retention |
Sep. 19, 2000 |
| 6117452 |
Fatty ester combinations |
Sep. 12, 2000 |
| 6117450 |
Method of making a perorally administered solid drug with controlled effective ingredient delivery |
Sep. 12, 2000 |
| 6117453 |
Solid compositions containing polyethylene oxide and an active ingredient |
Sep. 12, 2000 |
| 6110500 |
Coated tablet with long term parabolic and zero-order release kinetics |
Aug. 29, 2000 |
| 6103264 |
Process for preparing a controlled release composition |
Aug. 15, 2000 |
| 6103263 |
Delayed pulse release hydrogel matrix tablet |
Aug. 15, 2000 |
| 6099859 |
Controlled release oral tablet having a unitary core |
Aug. 8, 2000 |
| 6096339 |
Dosage form, process of making and using same |
Aug. 1, 2000 |
| 6093420 |
Sustained release matrix for high-dose insoluble drugs |
Jul. 25, 2000 |
| 6083533 |
Layered tablet for the controlled release of active substances |
Jul. 4, 2000 |
| 6083532 |
Sustained release formulation containing three different types of polymers and tablet formed therefrom |
Jul. 4, 2000 |
| 6080428 |
Nicotinic acid compositions for treating hyperlipidemia and related methods therefor |
Jun. 27, 2000 |
| 6077539 |
Treatment of migraine headache |
Jun. 20, 2000 |
| 6074670 |
Fenofibrate pharmaceutical composition having high bioavailability and method for preparing it |
Jun. 13, 2000 |
| 6074669 |
Controlled drug delivery system for diltiazem |
Jun. 13, 2000 |
| 6068854 |
Sol-controlled thermocolloid matrix based on gelatin for oral sustained-release form |
May. 30, 2000 |
| 6068855 |
Pharmaceutical composition containing a fusible carrier and method for producing the same |
May. 30, 2000 |
| 6066339 |
Oral morphine multiparticulate formulation |
May. 23, 2000 |
| 6056949 |
Aromatic granulated material |
May. 2, 2000 |
| 6054145 |
Making dosage units using low shear granulation |
Apr. 25, 2000 |
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