xxanxx, Duragesic (fentanyl) patches are rated by the amount of drug released per hour, and are measured in ULTRAGRAMS (not milligrams), and last up to three days. Fentanyl itself is an expremely powerful, but very short acting, synthetic narcotic. Using fentanyl in a patch means you can deliver a fairly standard dose over a long period, and fentanyl's extreme strength means the pacth itself is not a bulky or unwieldy size. It might be fine for you xxanxx, but a BB-sized amount of fentanyl gel would very likely knock an opioid-naive person on his ass. DJ, I'd start with "pinhead" size and titrate as needed. Effects of each dose should wear off within the hour, but may leave you feeling "floaty" or a little "removed" even though you're not high. BE CAREFUL: THIS IS INCREDIBLY POWERFUL STUFF. If your post implies a question about morphine patches, I'm unaware of their existence.