This section of the MedlinePlus website provides information about prescription and over-the-counter medication as well as various herbs and supplements. Browse by generic or brand name to learn about side effects, dosage, and special precautions.

A pan-Canadian health organization, Canada's Drug Agency provides access to a number of resources and publications, including collections of topic-specific evidence-based materials from the Canadian Journal of Health Technologies.

A large collection of freely accessible chemical information. PubChem is now the National Library of Medicine's single source for chemical information. All of the data previously found in ChemIDplus and the Drug Information Portal is now available through PubChem.

The Drugs, OTCs & Herbals section of the Medscape clinical reference website. Browse drug monographs by treatment or condition to find information about dosage, interactions, and administration as well as drug images and patient handouts.

The DailyMed website from the National Library of Medicine is a searchable database providing the most recent labeling submitted to the FDA by companies currently in use. The entries include labelling for prescription and nonprescription drugs for humans as well as animals.

This webpage from the US Food and Drug Administration contains links to multiple databases including the Orange Book which identifies drugs approved on the basis of safety and effectiveness. The webpage also provides information about patient labelling, prescription drug promotion research, and the drug approval process.

A database with information on current and resolved drug shortages and discontinuations reported to the FDA.

Affiliated with WebMD, RxList provides content written by pharmacists and physicians with data from sources including the FDA. Includes information for healthcare professionals as well as patients. It also contains a pill identifier and interaction checker.

From the US Department of Health and Human Services, the NCCIH website conducts and supports research and provides information about complementary health products and practices. Browse by health topic or herbs and visit the Resources for Health Care Providers section for evidence-based medicine research and clinical practice guidelines.

From the US National Institutes of Health, this database includes current and historical label information from products marketed in the US. Search by product name, product type, or ingredient.

Search the About Herbs database from the Memorial Sloan-Kettering Cancer Center to find information for healthcare professionals, patients, and caregivers about the common names, potential uses, clinical summary, and herb-drug interactions.

This collection of fact sheets from the US National Institutes of Health provides information about dietary supplements and their ingredients. These include vitamins, minerals, herbs and botanicals, probiotics, and more.