Dopamine AgonistsPurinergic P1 Receptor AgonistsReceptors, TachykininGABA AgonistsDose-Response Relationship, DrugNeurokinin ATachykininsReceptors, Prostaglandin EAdrenergic beta-AgonistsNicotinic AgonistsAdenosine A3 Receptor AgonistsRadioligand AssayPurinergic P2 Receptor AgonistsReceptors, Neurokinin-2Receptors, Opioid, deltaMuscarinic AgonistsReceptors, Purinergic P1Rats, Sprague-DawleyReceptors, Opioid, kappaAdenosine-5'-(N-ethylcarboxamide)Adrenergic alpha-AgonistsAdenosineHistamine AgonistsReceptor, Cannabinoid, CB2Excitatory Amino Acid AgonistsReceptors, Opioid, muAdrenergic beta-3 Receptor AgonistsPhenethylaminesCannabinoid Receptor AgonistsGABA-A Receptor AgonistsAdenosine A1 Receptor AgonistsReceptors, Adrenergic, beta-3Adrenergic beta-1 Receptor AgonistsEnkephalin, Ala(2)-MePhe(4)-Gly(5)-CannabinoidsNeurokinin BPiperidinesReceptors, OpioidSubstance PReceptor, Adenosine A3Receptors, Prostaglandin E, EP4 SubtypeReceptors, Neurokinin-3Receptors, Prostaglandin E, EP2 SubtypeRats, WistarAdrenergic alpha-1 Receptor AgonistsReceptors, Neurokinin-1Enkephalin, D-Penicillamine (2,5)-TetrahydronaphthalenesAdrenergic AgonistsReceptor, Adenosine A2AGuinea PigsAdrenergic alpha-2 Receptor AgonistsCyclic AMPPyrrolidinesReceptors, Metabotropic GlutamateSerotonin 5-HT2 Receptor AgonistsLigandsEnkephalinsSerotonin AntagonistsCells, CulturedSerotonin 5-HT1 Receptor AgonistsCHO CellsReceptors, Dopamine D2Receptors, Adrenergic, betaReceptor, Adenosine A1BenzomorphansQuinpiroleIsoproterenolReceptors, Neuropeptide YCalciumPurinergic P2Y Receptor AgonistsBinding, CompetitiveCricetinaeReceptors, NeurotransmitterBenzeneacetamidesReceptors, Prostaglandin E, EP1 SubtypeReceptors, Adrenergic, beta-2Receptors, Purinergic P2Purinergic P1 Receptor AntagonistsBicyclo CompoundsSignal TransductionReceptors, Dopamine D1Cholinergic AgonistsErgolines2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepinePropanolaminesReceptors, G-Protein-CoupledDinoprostoneMuscle ContractionEnkephalin, Leucine-2-AlanineReceptors, NicotinicReceptor, Muscarinic M1IndolesResorcinolsPindololReceptor, Cannabinoid, CB1Prostanoic AcidsReceptors, PurinergicProcaterolMice, Inbred C57BL