US 5,132,115 · Granted 1992-07-21

Planar therapeutic system, process for its production and utilization

A transdermal therapeutic system is disclosed which comprises an optional flexible backing layer, one or more drug reservoir(s), one or more adhesive layer(s) and optionally a detachable protective layer for the skin contact surface of the flat therapeutical system. The skin contact area of the therapeutical system is a skin contact layer which has one or more non-adhesive drug-releasing section(s) and one or more skin-adhesion section(s), which optionally contain a further drug. A process is disclosed for the production of the system, as well as the use thereof for local or systemic, transdermal administration of drugs in human or veterinary medicine or in cosmetics.

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