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For additional information sources on this topic, please see:
Drug information: online resources
Online drug information sources
Drug Information Portal
Searchable by brand name, generic name or category, the Drug Information Portal retrieves and aggregates information from multiple government resources.
Drug descriptions, structures, synonyms, brand names, mechanisms of action, metabolism, and toxicity.
Provides overviews, dosage, side effects, and interactions. "Professional" tab includes administration, precautions, adverse reactions, clinical pharmacology, toxicology, and a summary of clinical studies.
Drug names, active ingredients, approval date(s) and history, letters, labels, and FDA reviews.
MedlinePlus: Drugs, Herbs and Supplements
Dosage, side effects, special precautions, and other information on prescription drugs, over-the-counter medicines, herbs and supplements.
Merck Manual Professional Version
Select the Drug Info tab to see drug names, classifications, doses, unsupported or off-label uses, interactions, considerations, toxicology, mechanisms and pharmacodynamics.