The present invention relates to a hard capsule made from a material such as gelatin, starch or a hydrophilic polymer. The capsule of the present invention is formulated into a delivery system which incorporates pharmacologically active components in three or more distinct compartments....http://www.google.es/patents/US5672359?utm_source=gb-gplus-sharePatente US5672359 - Multicompartment hard capsule with control release properties
Multicompartment hard capsule with control release properties
