Small Molecule LibrariesProtein BindingSignal TransductionCell Adhesion MoleculesHormone AntagonistsDose-Response Relationship, DrugModels, MolecularMolecular StructureDrug Evaluation, PreclinicalMolecular Sequence DataDopamine AntagonistsLigandsHigh-Throughput Screening AssaysExcitatory Amino Acid AntagonistsNeurokinin-1 Receptor AntagonistsDrug DesignNarcotic AntagonistsAmino Acid SequenceBinding SitesHistamine H2 AntagonistsStructure-Activity RelationshipInterleukin 1 Receptor Antagonist ProteinCell LineCells, CulturedPiperidinesRats, Sprague-DawleyDrug DiscoveryMuscarinic AntagonistsCell Line, TumorGABA AntagonistsKineticsHistamine H1 AntagonistsPurinergic P1 Receptor AntagonistsEnzyme InhibitorsCombinatorial Chemistry TechniquesBinding, CompetitiveHistamine AntagonistsNicotinic AntagonistsIndolesAdenosine A2 Receptor Antagonists