Sufentanil
Sufentanil , sold under the brand names Dsuvia and Sufenta , is a synthetic opioid analgesic drug approximately 5 to 10 times as potent as its parent drug , fentanyl , and 500 times as potent as morphine . 
<triplet> fentanyl <subj> opioid <obj> instance of <triplet> morphine <subj> opioid <obj> subject has role