I do not advise using Fetanyl, its the most hardcore opiate you will ever come across, ive been told its better then pure heroin if you know how to use it, but if your serious about using them I have seen it done MANY times by someone who is dead now, so don't do it.
To smoke them is simple, put a VERY VERY small piece on some foil shiney side down and light it, shooting is a little more complicated and completely disgusting and VERY painful you will most likely scream after you do that , put an even smaller piece on your spoon and add vinegar, cook until the vinegar almost disappears, add water and cook until the water is almost gone then add enough water to fill your rig completely and do your thing. the reason for the vinegar is because it is the only thing that will get the stuff u want out of the patch, the reason for adding water twice is to dilute the remaining vinegar as much as possible this will work and give u the best high u have ever had, the person I have seen do this is dead but has done ALOT of H, from the worst to the best and he says shooting fetanyl in this method is the best high he has ever experienced, H wouldn't even get him high when he was doing this because he was using 200mg of methadone everyday. Since fentanyl has been around my area I have heard of 2 deaths from shooting it and pretty much witnessed one of them myself, smoking it is safer, I DO NOT ADVISE ANYONE USE FETANAYL I JUST WANT TO MAKE SURE IF HE DOES IT HES DOING IT RIGHT, I DONT WANT ANYMORE PEOPLE DYING FROM THIS GARBAGE