The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 1984
Filed:
Nov. 01, 1982
Warner-Lambert Company, Morris Plains, NJ (US);
Abstract
The present invention provides a process for the preparation of an antacid material based upon magnesium aluminium hydroxide, wherein magnesium hydroxide and/or magnesium oxide is reacted in an atomic ratio of magnesium to aluminium of 1:1 to 3:1 with an aqueous solution of aluminium sulphate until the pH of the reaction mixture is from 4.0 to 8.0, whereafter water-soluble components are removed from the mixture in a known manner and the mixture is isolated and, if desired, dried or preferably the mixture obtained after centrifuging or filtering off is used without further purification and optionally dried. The present invention also provides pharmaceutical compositions containing an antacid material prepared by these processes, in admixture with a conventional pharmaceutical adjuvant. Furthermore, the present invention provides a method of combating hyperacidity and gastrointestinal diseases, which comprises administering an antacid material prepared by the above processes.