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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 |
| 5681581 |
Controlled release pharmaceutical formulations of 3'-azido-3'-deoxythymidine and methods of use |
Oct. 28, 1997 |
| 5681582 |
Extended release, film-coated tablet of astemizole and pseudoephedrine |
Oct. 28, 1997 |
| 5681572 |
Porous material product and process |
Oct. 28, 1997 |
| 5681588 |
Delayed release microtablet of .beta.-phenylpropiophenone derivatives |
Oct. 28, 1997 |
| 5679376 |
Simethicone containing pharmaceutical compositions |
Oct. 21, 1997 |
| 5676972 |
Time-release delivery matrix composition and corresponding controlled-release compositions |
Oct. 14, 1997 |
| 5674529 |
Alkalinizing potassium salt controlled release preparations |
Oct. 7, 1997 |
| 5665782 |
Hydrolyzed gelatin as a flavor enhancer in a chewable table |
Sep. 9, 1997 |
| 5662935 |
Process for preparing controlled release pharmaceutical forms and the forms thus obtained |
Sep. 2, 1997 |
| 5662917 |
Release-controlled implantable somatotropin composition |
Sep. 2, 1997 |
| 5660860 |
Water-dispersible tablets |
Aug. 26, 1997 |
| 5656295 |
Controlled release oxycodone compositions |
Aug. 12, 1997 |
| 5656298 |
Immunobooster for delayed release of immunogen |
Aug. 12, 1997 |
| 5656290 |
Bisacodyl dosage form with multiple enteric polymer coatings for colonic delivery |
Aug. 12, 1997 |
| 5654003 |
Process and apparatus for making tablets and tablets made therefrom |
Aug. 5, 1997 |
| 5651985 |
Expandable pharmaceutical forms |
Jul. 29, 1997 |
| 5637320 |
Controlled absorption naproxen formulation for once-daily administration |
Jun. 10, 1997 |
| 5637313 |
Chewable dosage forms |
Jun. 10, 1997 |
| 5629016 |
Water-dispersible tablets |
May. 13, 1997 |
| 5629018 |
Composition for controlled release of an active substance and method for the preparation of such a composition |
May. 13, 1997 |
| 5626877 |
Polymer-based drug delivery system |
May. 6, 1997 |
| 5621005 |
Aqueous pharmaceutical suspension for substantially water insoluble pharmaceutical actives |
Apr. 15, 1997 |
| 5614220 |
Pharmaceutical preparation controlled to release medicinal active ingredient at targeted site in intestinal tract |
Mar. 25, 1997 |
| 5614219 |
Oral administration form for peptide pharmaceutical substances, in particular insulin |
Mar. 25, 1997 |
| 5609884 |
Controlled release naproxen sodium plus naproxen combination tablet |
Mar. 11, 1997 |
| 5607915 |
Pulmonary delivery of active fragments of parathyroid hormone |
Mar. 4, 1997 |
| 5601842 |
Sustained release drug formulation containing a tramadol salt |
Feb. 11, 1997 |
| 5601846 |
Proteinoid microspheres and methods for preparation and use thereof |
Feb. 11, 1997 |
| 5601845 |
Pharmaceutical spheroid formulation |
Feb. 11, 1997 |
| 5594030 |
Controlled release pharmaceutical compositions based on one or more pharmaceutically acceptable salts of gamma hydroxy-butyric acid |
Jan. 14, 1997 |
| 5585115 |
Pharmaceutical excipient having improved compressability |
Dec. 17, 1996 |
| 5578323 |
Proteinoid carriers and methods for preparation and use thereof |
Nov. 26, 1996 |
| 5576020 |
Adjuvant for pharmaceutical preparations |
Nov. 19, 1996 |
| 5576021 |
Sustained-release multi-granule tablet |
Nov. 19, 1996 |
| 5571533 |
Controlled-release mucoadhesive pharmaceutical composition for the oral administration of furosemide |
Nov. 5, 1996 |
| 5567693 |
Method for inhibiting angiogenesis, proliferation of endothelial or tumor cells and tumor growth |
Oct. 22, 1996 |
| 5560928 |
Nutritional and/or dietary composition and method of using the same |
Oct. 1, 1996 |
| 5554388 |
Systemic drug delivery compositions comprising a polycationi substance |
Sep. 10, 1996 |
| 5549911 |
Galenic form of 5-nitromidazole derivatives which is effective for the treatment of parasitoses and infections of the entire gastrointestinal tract |
Aug. 27, 1996 |
| 5549891 |
Method for disinfecting contact lens with catalase compositions |
Aug. 27, 1996 |
| 5549912 |
Controlled release oxycodone compositions |
Aug. 27, 1996 |
| 5529790 |
Delayed, sustained-release diltiazem pharmaceutical preparation |
Jun. 25, 1996 |
| 5525354 |
Pharmaceutical preparation and process for its manufacture |
Jun. 11, 1996 |
| 5518737 |
Peroral drug delivery system |
May. 21, 1996 |
| 5512299 |
Method of treating oral inflammatory disease |
Apr. 30, 1996 |
| 5510108 |
Sanitizer for swimming pools, spas, and hot tubs |
Apr. 23, 1996 |
| 5508042 |
Controlled release oxycodone compositions |
Apr. 16, 1996 |
| 5505967 |
Microparticulate pharmaceutical delivery system |
Apr. 9, 1996 |
| 5484608 |
Sustained-release drug delivery system |
Jan. 16, 1996 |
| 5478572 |
Gepirone dosage form |
Dec. 26, 1995 |
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