Transdermal patch, useful for administering fentanyl or its analog through the skin, comprises a backing layer on which a reservoir containing a single phase polymeric composition is disposed

摘要

A transdermal patch (I) comprises: (A) a backing layer and (B) a reservoir disposed on the backing layer. At least the skin contacting surface of the reservoir is adhesive. A transdermal patch (I) comprises: (A) a backing layer and (B) a reservoir, comprising a single phase polymeric composition free of undissolved components containing the fentanyl to induce and maintain analgesia in a human for at least three days, and disposed on the backing layer. At least the skin contacting surface of the reservoir is adhesive. ACTIVITY : Analgesic. No biological data available. MECHANISM OF ACTION : None given.