Buprenorphine
Buprenorphine is an opioid used to treat opioid use disorder , acute pain , and chronic pain . 
<triplet> Buprenorphine <subj> opioid <obj> subject has role <subj> opioid use disorder <obj> medical condition treated <subj> pain <obj> medical condition treated <triplet> opioid use disorder <subj> Buprenorphine <obj> drug used for treatment <triplet> pain <subj> Buprenorphine <obj> drug used for treatment <triplet> chronic pain <subj> pain <obj> instance of