TRANSDERMAL THERAPEUTIC SYSTEM (TTS) CONTAINING THE ACTIVE SUBSTANCE FENTANYL

摘要

The invention relates to transdermal therapeutic systems with fentanyl or an analogous fentanyl derivative as active ingredient. In order to prevent inadvertent overdosage by uncontrolled release of active ingredient as a result of damage, the active ingerdient is contained in fluid-filled micro-reservoirs in the layer containing the active ingredient. The layer containing the active ingredient can optionally be provided with a membrane.