They are effectively the same
Why not IV Zubsolv? Same difference, (nalaxone can be snorted) and Dr. is unlikely to switch to Subutex without a decent reason.
Not encouraging IV use, just don't get it - nalaxone is inactive in buprenorphine because buprenorphine has such a high binding affinity - So you can technically inject any of the SL formulations, you really need micron filters though, and proper tech
Injecting anything us a risk, and we can't guarantee the results of any given experience or drug, or ROA. The best is to give the info, and leave it to you, hopefully informed. It is up to you what you do, and to research - there is literally multiple Suboxone/Buprenorphine mega threads, that cover Zubsolv as well (Zubsolv is basically equivalent to a liquid formulation administered SL, as it has improved absorption and higher potency taken sublingually)
Check those out, with the search engine, if you want to. However this isn't really HR, more of a straight question, so am gonna close this- be careful and hopefully content
