3608063 is referenced by 38 patents and cites 9 patents.

Pharmaceutical compositions are prepared by combining in the presence of water and a carboxylic acid a polymer having acidic or basic functionality with a pharmaceutically active material having respectively basic or acidic functionality, coagulating or otherwise separating the product produced and then formulating the product by conventional techniques into suitable dosage forms. The resulting products are characterized by possessing unique sustained-release, enteric or delayed-release properties.

Molecular drug entrapment process and compositions
Application Number
Publication Number
Application Date
August 15, 1969
Publication Date
September 21, 1971
Banker Gilbert S
A61k 27/12
A61K 47/48
A61K 09/20
View Original Source