COMPOSITION FOR CONTROLLED RELEASE OF ONE OR MORE ACTIVE COMPONENTS, ONE OR MULTIPLE-STAGE TAPLETTING PRESS, APPARATUS FOR DECOATING TABLETS AND PROCESS FOR PRODUCING PHARMACEUTICAL COMPOSITIONS IN FORM OF TABLETS

摘要

A device for the controlled release of a substance having useful activity into a fluid medium at a substantially constant rate, said substance contained in a shape which is substantially that of a truncated cone by means of an impermeable wall or coating on the base and side (but not the top) of said truncated cone. Apparatus useful in manufacture when said device is a tablet for administration to a mammal.