TABLETS AND DISCS WITH COMPARTMENTS WITH TWO OR MORE DRUGS FOR RELEASE AT CERTAIN INTERVALS AND WITH SPECIFIC RATES

摘要

The present invention includes systems, compositions and methods of making a multilayer modular release system, wherein the layers form a stack of active agent release layers, wherein the stack comprises a body and first and second ends and an impermeable coating surrounding the body of the stack, wherein the active agent is only release from the first, second or both the first and second ends of the stack by diffusion.