AdenosineReceptor, Adenosine A2AReceptor, Adenosine A1Purinergic P1 Receptor AgonistsAdenosine A2 Receptor AgonistsAdenosine A1 Receptor AgonistsReceptor, Adenosine A3Adenosine DeaminaseReceptor, Adenosine A2BReceptors, Purinergic P1Receptors, Adenosine A2Adenosine KinaseAdenosine A2 Receptor AntagonistsAdenosine A1 Receptor AntagonistsSerotonin Receptor AgonistsDopamine AgonistsPurinergic P1 Receptor AntagonistsSerotonin 5-HT1 Receptor AgonistsXanthinesAdenosine A3 Receptor AgonistsSerotonin 5-HT2 Receptor AgonistsAdenosine-5'-(N-ethylcarboxamide)PhenethylaminesDose-Response Relationship, DrugAdenosine MonophosphateGABA AgonistsGABA-A Receptor AgonistsGABA-B Receptor AgonistsReceptors, PurinergicPurinergic P2 Receptor AgonistsCannabinoid Receptor AgonistsSerotonin 5-HT4 Receptor AgonistsRats, Sprague-DawleyCyclic AMPAdrenergic alpha-2 Receptor AgonistsPhenylisopropyladenosineTheophyllineAdenosine A3 Receptor Antagonists2-ChloroadenosineReceptors, Opioid, kappaHistamine AgonistsMuscarinic AgonistsRats, WistarReceptors, Opioid, muReceptors, Dopamine D2Serotonin Antagonists2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepineAdrenergic AgonistsBaclofenAdrenergic beta-3 Receptor AgonistsRadioligand AssayQuinpirole5'-NucleotidaseNicotinic AgonistsReceptors, Opioid, deltaReceptors, Dopamine D1Excitatory Amino Acid AgonistsCells, CulturedInosinePiperidinesGuinea PigsAdrenergic beta-AgonistsBenzazepinesCalcium8-Hydroxy-2-(di-n-propylamino)tetralinEnkephalin, Ala(2)-MePhe(4)-Gly(5)-Adrenergic alpha-AgonistsCannabinoidsAdrenergic alpha-1 Receptor AgonistsTubercidinReceptors, OpioidTheobromineMuscimolSerotoninReceptors, SerotoninPyrrolidinesAdenosine TriphosphatasesNaphthalenesAdenine NucleotidesReceptors, Purinergic P2TriazinesSignal TransductionCholinergic AgonistsPurinergic P2Y Receptor AgonistsKineticsDopamine AntagonistsEnkephalin, D-Penicillamine (2,5)-IsoproterenolReceptors, GlucagonBenzoxazinesPurinergic P2X Receptor AgonistsReceptor, Cannabinoid, CB2Adenylate CyclaseReceptor, Cannabinoid, CB1NeuronsVenomsSerotonin 5-HT3 Receptor AgonistsTime FactorsLigandsBehavior, Animal