| (subclass Stimulant BiologicallyActiveSubstance) | Mid-level-ontology.kif 9332-9332 | |
| (subclass StimulantDrug Stimulant) | TransnationalIssues.kif 107-107 | |
| (subclass Caffeine Stimulant) | Mid-level-ontology.kif 21647-21647 | |
| (subclass Pseudoephedrine Stimulant) | Medicine.kif 2990-2990 | |
| (subclass Vyvanse Stimulant) | Medicine.kif 3263-3263 | |
| (subclass Lisdexamfetamine Stimulant) | Medicine.kif 3967-3967 | |
| (subclass Amphetamine Stimulant) | Economy.kif 4783-4783 |
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