BANDED PROLONGED RELEASE ACTIVE AGENT DOSAGE FORM

摘要

The present invention is directed to an active agent dosage form that is useful for the prolonged delivery of an active agent formulation to a fluid environment of use. The active agent dosage form is a matrix that has an insoluble material circumscribing a portion of the surface of the matrix. The invention is also directed to a method of making the active agent dosage form.