Receptors, CannabinoidReceptor, Cannabinoid, CB1CannabinoidsReceptor, Cannabinoid, CB2Cannabinoid Receptor AntagonistsPyrazolesPiperidinesCannabinoid Receptor AgonistsDronabinolCannabinoid Receptor ModulatorsBenzoxazinesCyclohexanolsReceptors, DrugNaphthalenesEndocannabinoidsMorpholinesArachidonic AcidsPolyunsaturated AlkamidesCannabidiolGlyceridesDose-Response Relationship, DrugRats, Sprague-DawleyAnalgesicsCannabisHormone AntagonistsExcitatory Amino Acid AntagonistsCannabinolDopamine AntagonistsNarcotic AntagonistsAmidohydrolasesNeurokinin-1 Receptor AntagonistsMonoacylglycerol LipasesHistamine H2 AntagonistsRats, WistarInterleukin 1 Receptor Antagonist ProteinGABA AntagonistsMuscarinic AntagonistsCalcium Channel BlockersAdenosine A2 Receptor AntagonistsHistamine H1 AntagonistsPurinergic P1 Receptor AntagonistsNicotinic AntagonistsRadioligand AssayIndolesBehavior, AnimalHistamine AntagonistsDrug Inverse AgonismLigandsDrug InteractionsAdrenergic alpha-1 Receptor AntagonistsPurinergic P2 Receptor AntagonistsNeuronsBinding, CompetitiveSignal TransductionHallucinogensCapsaicinSerotonin 5-HT3 Receptor AntagonistsSerotonin 5-HT2 Receptor AntagonistsMice, Inbred C57BLCarbamatesTRPV Cation ChannelsAdenosine A1 Receptor AntagonistsCells, CulturedSynaptic TransmissionBrainLeukotriene AntagonistsAngiotensin Receptor AntagonistsCHO CellsMice, KnockoutReceptors, Opioid, muHippocampusGuanosine 5'-O-(3-Thiotriphosphate)Time FactorsAdrenergic alpha-2 Receptor AntagonistsDisease Models, AnimalAdrenergic AntagonistsGABA-A Receptor AntagonistsDrug ToleranceElectric StimulationAdrenergic alpha-AntagonistsNaloxoneMotor ActivityMice, Inbred ICRGuinea PigsMarijuana AbuseCricetinaeReceptors, N-Methyl-D-AspartateReceptors, G-Protein-CoupledHistamine H3 AntagonistsReceptors, OpioidCalciumPainHyperalgesiaSelf AdministrationMorphinegamma-Aminobutyric AcidBiphenyl CompoundsNaltrexoneSubstance Withdrawal SyndromePyridines