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1. US5948438 - Pharmaceutical formulations having improved disintegration and/or absorptivity

Office United States of America
Application Number 08868744
Application Date 04.06.1997
Publication Number 5948438
Publication Date 07.09.1999
Grant Number 5948438
Grant Date 07.09.1999
Publication Kind A
IPC
A HUMAN NECESSITIES
01
AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
N
PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
25
Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
08
containing solids as carriers or diluents
10
Macromolecular compounds
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9
Medicinal preparations characterised by special physical form
14
Particulate form, e.g. powders
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9
Medicinal preparations characterised by special physical form
20
Pills, lozenges or tablets
[IPC code unknown for A23L 1/534]
A HUMAN NECESSITIES
23
FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
L
FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D91; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
1
Foods or foodstuffs; Their preparation or treatment
36
Food consisting mainly of nut meats or seeds
38
Peanut butter
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
16
Amides, e.g. hydroxamic acids
165
having aromatic rings, e.g. colchicine, atenolol, progabide
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
185
Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
19
Carboxylic acids, e.g. valproic acid
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
33
Heterocyclic compounds
395
having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins
495
having six-membered rings with two nitrogen atoms as the only ring hetero atoms, e.g. piperazine
505
Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9
Medicinal preparations characterised by special physical form
14
Particulate form, e.g. powders
16
Agglomerates; Granulates; Microbeadlets
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9
Medicinal preparations characterised by special physical form
20
Pills, lozenges or tablets
22
Sustained or differential release type
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9
Medicinal preparations characterised by special physical form
48
Preparations in capsules, e.g. of gelatin, of chocolate
52
Sustained or differential release type
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
B
POLYSACCHARIDES; DERIVATIVES THEREOF
15
Preparation of other cellulose derivatives or modified cellulose
02
Oxycellulose; Hydrocellulose; Cellulose hydrate
A01N 25/10
A61K 9/14
A61K 9/20
A23L 1/534
A23L 1/38
A61K 31/165
CPC
A61K 9/2013
A61K 9/2009
A61K 9/2018
A61K 9/2036
A61K 9/2054
Y10S 977/801
Applicants Edward Mendell Co., Inc.
Inventors Staniforth John N.
Sherwood Bob E.
Hunter Edward A.
Agents Davidson, Davidson & Kappel, LLC
Priority Data 08370576 09.01.1995 US
08486183 07.06.1995 US
60019546 10.06.1996 US
Title
(EN) Pharmaceutical formulations having improved disintegration and/or absorptivity
Abstract
(EN)

An oral solid dosage form, comprising a compressed tablet including an excipient comprising (a) microcrystalline cellulose; and (b) a compressibility augmenting agent which (I) physically restricts the proximity of the interface between adjacent cellulose surfaces (e.g., silicon dioxide); or (ii) inhibits interactions between adjacent cellulose surfaces (e.g., sodium lauryl sulfate); or (iii) accomplishes both (i) and (ii) above; together with an active agent, is disclosed which provides improved disintegration and/or absorptivity to the oral solid dosage form when orally administered to human patients. The excipient comprises agglomerated particles of said microcrystalline cellulose and said compressibility augmenting agent in intimate association with each other.