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Class Information
Number: 424/468
Name: Drug, bio-affecting and body treating compositions > Preparations characterized by special physical form > Tablets, lozenges, or pills > Sustained or differential release type
Description: Subject matter in which the timing or spacing of administration or absorption of an active ingredient in a system (e.g., animal body) is regulated by the structure or physical arrangement of elements so that a single administration provides: (a) a gradual but continuous feeding of the active ingredient to the system by slow release or (b) discontinuous feeding in two or more distinct stages.

Sub-classes under this class:

Class Number Class Name Patents
424/469 Discrete particles in supporting matrix 674
424/472 Layered unitary dosage forms 553
424/471 Plural concentric cores 147

Patents under this class:

Patent Number Title Of Patent Date Issued
8709478 Once daily formulations of tetracyclines Apr. 29, 2014
8703210 Adding calcium and bicarbonate to human blood Apr. 22, 2014
8703192 Dosage form containing pantoprazole as active ingredient Apr. 22, 2014
8703191 Controlled-release pharmaceutical tablets Apr. 22, 2014
8703189 Medicinal composition Apr. 22, 2014
8691270 Misuse preventative, controlled release formulation Apr. 8, 2014
8685998 Tacrolimus for improved treatment of transplant patients Apr. 1, 2014
8685450 Dual drug dosage forms with improved separation of drugs Apr. 1, 2014
8685447 Misuse preventative, controlled release formulation Apr. 1, 2014
8679535 Sustained release matrix systems for highly soluble drugs Mar. 25, 2014
8679533 Pramipexole once-daily dosage form Mar. 25, 2014
8673344 Solid dosage form with a film containing an active substance, as well as its method of production Mar. 18, 2014
8668932 Extended release venlafaxine formulation Mar. 11, 2014
8664239 Tacrolimus for improved treatment of transplant patients Mar. 4, 2014
8663685 Sustained release aminopyridine composition Mar. 4, 2014
8658207 Extended release tablet formulations of flibanserin and method for manufacturing the same Feb. 25, 2014
8652520 Combination tablet with chewable outer layer Feb. 18, 2014
8652497 Pharmaceutical formulation containing irritant Feb. 18, 2014
8642082 Pharmaceutical compositions for the oral administration of heparin or derivatives thereof Feb. 4, 2014
8637512 Formulations and method of treatment Jan. 28, 2014
8637077 Sustained-release preparation Jan. 28, 2014
8632805 Controlled-release formulations, method of manufacture, and use thereof Jan. 21, 2014
8628798 Water-swellable polymers Jan. 14, 2014
8628797 Oral extended-release composition Jan. 14, 2014
8623418 Pharmaceutical composition Jan. 7, 2014
8623411 Modified release compositions comprising tacrolimus Jan. 7, 2014
8623410 Modified release compositions comprising tacrolimus Jan. 7, 2014
8623409 Clonidine formulation Jan. 7, 2014
8617601 Methods and formulations for making pharmaceutical compositions containing bupropion Dec. 31, 2013
8617600 Modified release preparations containing oxcarbazepine and derivatives thereof Dec. 31, 2013
8617599 Modified release compositions comprising tacrolimus Dec. 31, 2013
8617596 Sustained-release tablet production process Dec. 31, 2013
8617587 Tasted masked veterinary solid compositions Dec. 31, 2013
8613948 Treatment of faecal incontinence and other conditions with 1R, 2S-methoxamine Dec. 24, 2013
8609141 Silver ion delivery platform Dec. 17, 2013
8597681 Methods of producing stabilized solid dosage pharmaceutical compositions containing morphinans Dec. 3, 2013
8592481 Gastric retentive gabapentin dosage forms and methods for using same Nov. 26, 2013
8591945 Pregelatinized starch in a controlled release formulation Nov. 26, 2013
8586094 Coated tablets Nov. 19, 2013
8586085 Methods and formulations for making pharmaceutical compositions containing bupropion Nov. 19, 2013
8586084 Modified release compositions comprising tacrolimus Nov. 19, 2013
8580301 Psychostimulant containing pharmaceutical composition Nov. 12, 2013
8568776 Multiparticulate L-menthol formulations and related methods Oct. 29, 2013
8563038 Formulations and methods for the controlled release of active drug substances Oct. 22, 2013
8563036 Pharmaceutical compositions comprising Brivaracetam Oct. 22, 2013
8563035 Oral tablet compositions of dexlansoprazole Oct. 22, 2013
8557285 Pharmaceutical compositions for the coordinated delivery of NSAIDs Oct. 15, 2013
8557282 Extended release compositions comprising as active compound venlafaxine hydrochloride Oct. 15, 2013
8557281 Water-swellable polymers Oct. 15, 2013
8551523 Sustained release aminopyridine composition Oct. 8, 2013

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