Conclusion: The potent efficacy for the percutaneous permeability of the C-TTS was good for 7 days after the placement on the skin. The C-TTS has the similar percutaneous characters in vitro as the Catapres-TTS. 结论:C-TTS可以维持7d的恒定经皮渗透,与Catapres-TTS体外透皮行为相似。