Hi i am using fentanyl 100mg patch, my question is that my patch came off after 1 day, can i change it to a new one and then change it on the original day or start my 72hrs from the new patch. i have stuck a bit of tape to hold in place just now?

I recommend asking.your prescribing MD or your pharmacist for advice for this important issue. That is a rather strong strength of fentanyl.patch and a significant amount of opiod.If you can't reach them now I'd keep the patch taped until tomorrow when you can reach them.

Your fentanyl patch delivers 100 mcg of the medicine every hour, which means, even if it came out, you still have fentanyl circulating into your body. Usually, Fentanyl reaches peak effect about 24-36 hours after it was started. I would recommend informing your provider, that the patch came out, and then, if she/he does not have any objections, place the new patch 24 hours after the first one.