m sure the NP went over it with me, but my memory is totally shot.) I am just not sure exactly
how the Fentanyl patch
works. I know
it releases the medicine through your skin over a period of hours. I started out changing it every 72 but she changed it to every 48. What I'm wondering is, if I were to take it off and not put another one on, how long would the medicine still work? I am pretty sure when she started me on this she said it takes about 12 hours to kick in.