Receptor, Cannabinoid, CB1Receptors, CannabinoidCannabinoidsReceptor, Cannabinoid, CB2EndocannabinoidsCannabinoid Receptor AgonistsCannabinoid Receptor ModulatorsCannabinoid Receptor AntagonistsDronabinolBenzoxazinesCyclohexanolsPyrazolesNaphthalenesPolyunsaturated AlkamidesPiperidinesReceptors, DrugArachidonic AcidsMorpholinesCannabidiolGlyceridesCannabisCannabinolAmidohydrolasesAnalgesicsMonoacylglycerol LipasesDose-Response Relationship, DrugRats, Sprague-DawleyDrug Inverse AgonismHallucinogensCarbamatesMarijuana AbuseBehavior, AnimalCalcium Channel BlockersTRPV Cation ChannelsMarijuana SmokingRats, WistarIndolesLigandsGuanosine 5'-O-(3-Thiotriphosphate)Mice, Inbred C57BLMice, KnockoutDrug TolerancePsychotropic DrugsBrainCapsaicinMice, Inbred ICRNeuronsSignal TransductionBenzodioxolesSynaptic TransmissionHippocampus