Is this system still under development? I've used Mylan fentanyl transdermal patches for several years. Started with 50 ug/hr and now using 75 ug/hr. Of the three day cycle, the first day is good - effective pain reduction without "druggy" side effects. The second day is usually pretty good if I haven't been too active physically. The third day usually sucks to the point that some days I don't even get out of bed. Based in my experience, it doesn't appear likely that going to 100 ug/hr patches would help. On the other hand, being able to have some control over dose rate seems promising. ## Hello, Zippo! How are you? I'm sorry, but I have no information on this. However, these patches can also be prescribed to be changed every 48 hours, rather than every 72, s...