"i was on fentynal  patches for year and a half @ 75 mcg.  i was needing a little more pain relief so the doctor was going to switch me to butrans insurance wouldn&#039;t pay so he decided belbuca.  i&#039;ve currently been on it for almost 2 weeks i can&#039;t sleep more than an hour a day i have a massive headache all the time and my skin crawls like there&#039;s bugs under it almost .  i&#039;ve talk to the doctor he will not listen it&#039;s not controlling the pain it wears off for hours before the next dose i can&#039;t hold food down and i have no desire to drink anything either."