Uncoated pharmaceutical reaction tablet
First Claim
1. Uncoated, compressed tablet for the preparation of an orally applicable aqueous suspension or solution of a pharmaceutically active substance, comprising in a mixture with one another at least one pharmaceutically active substance, a disintegrant effective amount of at least one water insoluble, water swellable disintegrant which is starch or crosslinked polyvinylpolypyrrolidone and an effervescent effective amount of an effervescent system which generates a gas upon contact with water comprising a first constituent selected from the group consisting of L-tartaric acid, fumaric acid, citric acid, malic acid, monosodium citrate and adipic acid and a second constituent which is an alkali metal or alkaline earth metal carbonate or bicarbonate, wherein the weight ratio of disintegrant to said system is from 0.1:
- 1 to 4;
1.
1 Assignment
0 Petitions
Accused Products
Abstract
An uncoated compressed tablet which is used for the preparation of an orally applicable aqueous suspension or solution of a pharmaceutically active substance contains a mixture of the pharmaceutically active substance, a swelling disintegrant and an effervescent system. The weight ratio of the disintegrant to the effervescent system is from 0.1:1 to 4:1.
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Citations
22 Claims
- 1. Uncoated, compressed tablet for the preparation of an orally applicable aqueous suspension or solution of a pharmaceutically active substance, comprising in a mixture with one another at least one pharmaceutically active substance, a disintegrant effective amount of at least one water insoluble, water swellable disintegrant which is starch or crosslinked polyvinylpolypyrrolidone and an effervescent effective amount of an effervescent system which generates a gas upon contact with water comprising a first constituent selected from the group consisting of L-tartaric acid, fumaric acid, citric acid, malic acid, monosodium citrate and adipic acid and a second constituent which is an alkali metal or alkaline earth metal carbonate or bicarbonate, wherein the weight ratio of disintegrant to said system is from 0.1:
Specification