A controlled absorption diltiazem pellet formulation for oral administration comprises a core having diltiazem or a pharmaceutically acceptable salt thereof as the active ingredient. The core is surrounded by a coating which has only a single layer which is comprised of a relatively major...http://www.google.com.au/patents/US5834024?utm_source=gb-gplus-sharePatent US5834024 - Controlled absorption diltiazem pharmaceutical formulation
