Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Tablets – lozenges – or pills
Patent
1989-01-30
1989-09-05
Rose, Shep K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Tablets, lozenges, or pills
424488, 424489, 514 29, 514601, 514781, A61K 920, A61K 926, A61K 3118, A61K 3171
Patent
active
048637416
ABSTRACT:
A tablet providing enhanced delivery of an acid-sensitive drug in conjunction with an acid-stable drug is disclosed. The tablet is made up of a matrix containing a major proportion of an acid-stable drug, and a minor proportion of microcrystalline cellulose. Embedded in the matrix are coated granules containing at least about 90% of an acid-sensitive drug by weight, exclusive of the coating, and having a particle size of from about 10 to about 40 mesh. The granules of acid-sensitive drug have an acid resistant and/or enteric coating selected to dissolve in less than sixty minutes at a pH of 5.5 or greater.
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Abbott Laboratories
Gorman, Jr. Edward H.
Rose Shep K.
Weinstock Steven F.
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