Michael Horstmann;Sandra Wiedersberg;Gerd Hoffmann
发明人:
Michael Horstmann,Gerd Hoffmann,Sandra Wiedersberg
申请号：
US12865465
公开号：
US09066887B2
申请日:
2008.12.09
申请国别(地区):
US
年份:
2015
代理人:
摘要：
The invention relates to a transdermal therapeutic system (TTS) for administering pharmaceutical agents through the skin, comprising a back layer (R) impermeable to the agent and at least one layer (S) comprising the agent, wherein the layer (H) facing the skin comprises urea in solid form, allowing continuous administration of large quantities of agent over a long period of time.
