PiperidinesAlkaloidsErgot AlkaloidsIndole AlkaloidsPyrrolizidine AlkaloidsVinca AlkaloidsCinchona AlkaloidsReceptors, PhencyclidinePipecolic AcidsBerberine AlkaloidsReceptors, sigmaStereoisomerismMolecular StructureCyclizationAmaryllidaceae AlkaloidsPhencyclidineAconitumHeterocyclic Compounds, Bridged-RingDiphenylacetic AcidsAporphinesClavicepsImino SugarsAminationCatharanthusBenzylisoquinolinesDelphiniumPacific StatesPyrrolidinesSolanaceous AlkaloidsBerberineOrganosilicon CompoundsLobelineStructure-Activity RelationshipHaloperidolPinus ponderosaPlant ExtractsHeterocyclic Compounds, 2-RingNeotyphodiumMolecular ConformationCoptisRutaceaePlant PoisoningAmino AlcoholsErgotismReceptor, Muscarinic M1LycopodiumErgotamineMagnetic Resonance SpectroscopyAlkenesPiperidonesLysergic AcidPapaverRubiaceaeMonoacylglycerol LipasesReceptors, NeurotransmitterDioxolesEphedraBenzodioxolesBelladonna AlkaloidsDioxolanesN-MethylaspartateHarmineDose-Response Relationship, DrugPhenazocineRadioligand AssayAspidospermaPapaveraceaeReceptors, OpioidBenzylidene CompoundsPepstatinsCadaverinePapaverinePiperazinesMuscarinic AgonistsPlant BarkEphedrineChromatography, High Pressure LiquidPlants, MedicinalOpiumErgolinesCatalysisAnnonaceaeSenecioHeterocyclic Compounds with 4 or More RingsUncariaRauwolfiaVeratrum AlkaloidsPoriferaHypocrealesReceptors, N-Methyl-D-AspartateAconitineDizocilpine MaleateEpichloeLiliaceaeMitragynaHarmalineModels, ChemicalIbogaineBenzophenanthridinesCorydalis