Active substance-containing plaster for the controlled administration of active substances to the skin, the use thereof and a process for the controlled administration of active substances to the skin

Abstract From the Canadian patent

An active substance-containing plaster for the controlled administration of active substances to the skin has a back and a skin side and a back layer. An active substance reservoir is divided substantially perpendicularly to the skin contact surface of the plaster and has one or more active substances, a contact adhesive device on the skin side and optionally a cover layer detachable prior to the application of the plaster in, which it is possible to reduce the active substance release surface of the plaster by a predetermined amount through the removal of part of the active substance reservoir. At least one active substance reservoir part is detachable from the skin, whilst leaving behind …