Characteristics and comparative severity of respiratory response to toxic doses of fentanyl, methadone, morphine, and buprenorphine in rats
Keywords: ANOVA; analysis of variance; AUC; area under the curve; BUP; buprenorphine; f; respiratory frequency; i.p.; intraperitoneal; i.v.; intravenous; LD50; median lethal dose; NTI; naltrindole; nor-BNI; Nor-binaltorphimine; NLZ; naloxonazine; OR; opioid-recepto