OpiumPapaverMorphineAlkaloidsHeroin DependenceTyrosine DecarboxylaseThebainePeronosporaBerberine AlkaloidsBenzylisoquinolinesNoscapineCoptisMorphine DerivativesGreek WorldBenzophenanthridinesErgot AlkaloidsDopa DecarboxylaseNarcoticsMorphine DependencePlants, MedicinalMorphinansEschscholziaCodeineIsoquinolinesIndole AlkaloidsThalictrumPyrrolizidine AlkaloidsVinca AlkaloidsBotrytisLatexAnalgesics, OpioidOpioid-Related DisordersCinchona AlkaloidsOxidoreductases, N-DemethylatingPlant ProteinsNaloxoneDrug ToleranceGenes, PlantReceptors, Opioid, muGene Expression Regulation, PlantAmaryllidaceae AlkaloidsMethadone