The invention relates to a microparticulate system for the delayed and controlled release of active principles (AP) whose absorption window in vivo is essentially limited to the upper parts of the gastrointestinal tract, this system being intended for oral administration. The object of the invention...http://www.google.co.uk/patents/US8101209?utm_source=gb-gplus-sharePatent US8101209 - Microparticulate oral galenical form for the delayed and controlled release of pharmaceutical active principles
