2-ChloroadenosineAdenosineAdenosine-5'-(N-ethylcarboxamide)Receptors, PurinergicPhenylisopropyladenosineReceptors, Purinergic P1XanthinesTubercidinReceptor, Adenosine A2APurinergic P1 Receptor AgonistsPurinergic P1 Receptor AntagonistsTheophyllineReceptor, Adenosine A2BAdenosine KinaseAdenosine DeaminasePhenethylaminesReceptor, Adenosine A1ToyocamycinReceptor, Adenosine A3Cyclic AMPAdenosine A2 Receptor AgonistsDipyridamole8-Bromo Cyclic Adenosine MonophosphateAdenosine A1 Receptor AntagonistsAdenineAdenosine A1 Receptor AgonistsDeoxyadenosinesAdenylate CyclaseFormycinsPurinesPurinergic AntagonistsReceptors, Adenosine A2Pyran CopolymerAdenosylhomocysteinaseInosineAdenosine A2 Receptor AntagonistsGuinea PigsDose-Response Relationship, DrugKineticsColforsinRats, Inbred StrainsLucanthoneRibonucleosidesNucleosidesCells, CulturedAdenosine TriphosphateAdenine NucleotidesThioinosineTrypanosomatinaAdenosine Deaminase Inhibitors1-Methyl-3-isobutylxanthineDideoxyadenosineMuscarineAdenosine MonophosphateStructure-Activity Relationship