“You can have two pills that you bought from your drug dealer, one has a little bit more fentanyl than the other and that one will be the one that ends your life.” You know what they say, if you don't got em', you can't take em'. Read More to notice any improvement from 150 mcg or Fentanyl withdrawal.About the sleep I tried mixing melotonin with sleep aids, Xanax and valerian root and still cant get more than 3 hrs and it has bee almost 8 wks. I am on the fentanyl patch 12mcg and norco 7.5 for breakthrough pain. I've only been on the patch for a week. I am also prescribed xanax for anxiety but have not taken it since I started the patch because I was nervous to mix the 2. Can you mix Xanax and Fentanyl? Please seek an Answer from a licensed doctor or pharmacist. Both are powerful drugs that if used (or abused) could potentially have lethal effects. Learn more about the Xanax laced with Fentanyl epidemic. What is Xanax laced with Fentanyl, and is it dangerous? Fake Xanax is being manufactured in home laboratories and is being combined with Fentanyl and other dangerous compounds, such as: ammonia, rat poison, battery acid, hydrochloric acid and more. Can you mix Xanax and Fentanyl? Please seek an Answer from a licensed doctor or pharmacist. Both are powerful drugs that if used (or abused) could potentially have lethal effects. Honestly the fentanyl is a big worry too, so it's hard to say how much hydromorphone would be too much when you've got xanax and fentanyl making it 2-3 times as strong. Find out if it's long-acting or short-acting. The patient, a man in his early 20s, still had some of the counterfeit Xanax on his person, and testing revealed that the tablets had been cut with fentanyl, Arens explained. You sure can take Fentanly with Xanax but not suboxone with fentanyl or benzodiapepines. If your doctor is prescribing the fentanyl and knows about the xanax or Librium you should be fine.