The present invention pertains to semi-enteric drug delivery systems which comprise (a) an inert core, (b) a first coating layer over the core comprising a medicament, and (c) a second coating layer over the first coating layer comprising a mixture of methacrylic acid copolymer, type C, and povidone...http://www.google.fr/patents/US5167964?utm_source=gb-gplus-shareBrevet US5167964 - Semi-enteric drug delivery systems and methods for preparing same
Semi-enteric drug delivery systems and methods for preparing same
