ButorphanolNarcoticsNalbuphineAnalgesics, OpioidMorphinansPentazocineMeperidineNalorphineDrug and Narcotic ControlOxymorphoneNarcotic AntagonistsMorphineLevorphanolReceptors, Opioid, kappaPreanesthetic MedicationMiosisPain, PostoperativeEthylketocyclazocineLevallorphanNotophthalmusClonixinAnalgesiaThiazinesReceptors, Opioid, mu