FOLLOW THE CONNECTIONS
The knowledge graph.
Explore substances, mechanisms, and effects. Select a node to read its article and inspect the evidence.
Mapping connections…
SubstanceConceptRelationship
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Relationships
Editorial index: substances classified under craving. This index does not assert a combined effect. An urge to use a substance; with nicotine dependence it may appear during abstinence and be temporarily relieved by renewed exposure.
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Relationship nodes connect multiple concepts in one sourced statement. Member roles identify the substance, biological target, measured outcome, or exposure context. Editorial index relationships group classifications. Connections are not recommendations to combine substances.