I wish fentanyl would be easy to come by. I guess it all depends on which crowds you run in. I have no idea where to obtain it and am not even able to get a prescription for it because it's so tightly controlled despite my excruciating pain. So, the question about combining...I say it's better but I'm sure if you had access to it and understand how to use/abuse it (stockpiling some, extracting it from fentanyl patches, etc) then respiratory depression is highly likely. I think getting the fentanyl that people die from are unaware that there is any in the pile they buy to get high. They also tend to be people of the street where they know how to obtain it. Yes. Getting caught with it will send you to jail or similar. SN will most likely give anyone severe abdominal pain, nausea, etc as we all know. OD on opioids will also cause N and V, and likely painful abdomen since it slows down intestinal contraction.. Hence the constipation of opiates.