CaffeineAdenosineHypersensitivity, DelayedReceptor, Adenosine A2AReceptor, Adenosine A1Drug HypersensitivityAdenosine A2 Receptor AntagonistsPurinergic P1 Receptor AntagonistsAdenosine A1 Receptor AntagonistsAdenosine DeaminaseInterleukin 1 Receptor Antagonist ProteinReceptor, Adenosine A3Receptors, Adenosine A2Receptor, Adenosine A2BReceptors, Purinergic P1Neurokinin-1 Receptor AntagonistsAdenosine A2 Receptor AgonistsAdenosine KinaseDose-Response Relationship, DrugImmune SystemRats, Sprague-DawleyHypersensitivityXanthinesAdenosine A1 Receptor AgonistsPurinergic P1 Receptor AgonistsMice, Inbred C57BLPiperidinesHistamine H2 AntagonistsSerotonin 5-HT3 Receptor AntagonistsTheobromineExcitatory Amino Acid AntagonistsCells, CulturedRats, WistarAdenosine A3 Receptor AntagonistsDopamine AntagonistsDermatitis, ContactAlveolitis, Extrinsic AllergicGuinea PigsAngiotensin Receptor AntagonistsSerotonin 5-HT2 Receptor AntagonistsHormone AntagonistsDisease Models, AnimalPurinergic P2 Receptor AntagonistsTime FactorsAdenosine MonophosphateAdenosine-5'-(N-ethylcarboxamide)Histamine H1 AntagonistsCentral Nervous System StimulantsT-LymphocytesSkin TestsNarcotic AntagonistsTheophyllineImmunity, CellularImmune ToleranceMice, KnockoutMice, Inbred BALB CCalciumCytokinesSignal TransductionDentin SensitivityReceptors, PurinergicHistamine AntagonistsHyperalgesiaHypersensitivity, ImmediateImmunity, InnateReceptors, EndothelinMuscarinic AntagonistsPhenethylaminesSerotonin AntagonistsCyclic AMPGABA AntagonistsInflammationGABA-A Receptor AntagonistsSialoglycoproteinsReceptors, N-Methyl-D-AspartateReceptors, SerotoninLeukotriene AntagonistsReceptors, Interleukin-1SpleenDizocilpine MaleateReceptor, Endothelin AMacrophagesSerotonin 5-HT1 Receptor AntagonistsDinitrofluorobenzeneRNA, MessengerCell LineDrug InteractionsLymphocyte Activation2-ChloroadenosineBehavior, AnimalIndolesRadioligand AssayBiphenyl CompoundsPyrazolesLymphocytesAdenosine A3 Receptor AgonistsSkinRabbitsCoffeeTetrazoles