Category guide
What these drug categories mean
A plain-language overview of each category’s purpose, broad mechanism, common contexts, and major considerations. Categories and descriptions are loaded from the same data as the catalog.
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Before comparing
Categories organize—they do not prescribe
A category groups drugs by a shared effect, receptor target, clinical role, or common context. Drugs within one category can still differ substantially in effectiveness, formulation, duration, legal status, and risk. A category name is not a recommendation and does not make two drugs interchangeable.