Forms of microencapsulation of medicinal substances by homogeneous layers of native collagen

摘要

A new sustained-release, microencapsulated pharmaceutical composition is disclosed, suitable for oral administration which contains an effective amount of an orally-administered pharmaceutical in granular form wherein the granules are coated by a layer of homogeneous, native collagen to encapsulate the granules. Also disclosed is a method for administering the sustained-release compositions and a process for covering the granulated pharmaceutical with the layer of homogeneous, native collagen.