What Are The Side Effects Of Buprenorphine And Naxolene Sublingual?

Sir I am 24 and was using opium earlier, but frm the past one year I haven't used it but currently taking buprenorphine + naxolene sublingual tabs. I hv sme problem with my stomach. One month ago doc performed colonoscopy and sme other tests which were normal and said me to follow ofloxacin and ranitidine. But I am still having the same problem. So nw I consulted a psychiatrist and he prescribed me clistar Rt twice and duvanta . Nw I am quite happy as my problem is reduced. Sir is it addictive and has side effects? The problem I hv is I have to poop after I've my meal. And above everything it take almost an hour to clean once and it happens 5 times a day . My gastro reports are fine so what could be the problem pls help me out its killing me