Antacid material
US4915957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1984 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Aug 8, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K33/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for the preparation of an antacid material prepared from magnesium aluminum hydroxide, wherein magnesium hydroxide and/or magnesium oxide is reacted in an atomic ratio of magnesium to aluminum of 1:1 to 3:1 with an aqueous solution of aluminum sulfate until the pH of the reaction mixture is from 4.0 to 8.0, whereafter water-soluble components are removed from the mixture is known manner and this is isolated and, if desired, dried is described as well as a new embodiment of the formula [Mg.sub.5 Al.sub.10 (OH).sub.26 O.sub.5 ](SO.sub.4).sub.2 .multidot.nH.sub.2 O. Also described are pharmaceutical compositions containing such antacid material, in admixture with a conventional pharmaceutical adjuvant, and a method of combating hyperacidity and gastrointestinal diseases, which comprises administering such antacid material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.