Microcapsules for the controlled release of acetylsalicyclic acid in the gastrointestinal environment

摘要

The present invention relates to controlled-release microcapsules of acetylsalicylic acid which comprise particles of acetylsalicylic acid with a size of between 100 and 1000 mu m, coated with a coating material consisting of a mixture of a cellulosic film-forming polymeric derivative, an antiadherent, a plasticizer, a lubricant and a vinylic film-forming polymeric derivative. The invention further relates to a process for the preparation of said microcapsules.