therapeutic system for the delayed and controlled transdermal administration of active ingredients or transmucosalen (ii)

摘要

The invention relates to a therapeutic system for the sustained and controlled transdermal or transmucosal delivery of active substances, consisting of an impermeable backing layer, an auxiliary substance reservoir, an active substance reservoir, and a detachable protective layer, where a. the active substance reservoir contains the active substance in a non-bioavailable form, b. the auxiliary substance of the auxiliary substance reservoir makes the active substance bioavailable, and c. the auxiliary substance reservoir and active substance reservoir are initially brought into contact with one another immediately before application, or at a desired time after application, in such a way that the auxiliary substance passes into the active substance reservoir.