Contains active trials for many types of diseases. It is searchable by disease categories and geographic area.

ClinicalTrials.gov is a registry of federally and privately supported clinical trials conducted in the United States and around the world.

Consumer Reports Best Buy Drugs is a free public education project that provides guidance on the safety, effectiveness and cost of drugs.

DailyMed provides reliable information about marketed drugs. It offers the FDA-approved labels (package inserts) as well as the chemical formulas, composition, and physical description of the drug.

A service of the National Library of Medicine, the Dietary Supplements Labels Database offers information about label ingredients in more than 5,000 selected brands of dietary supplements. It enables users to compare ingredients in different brands.

DrugDigest has a very easy comparison tool so that you can see the interactions among prescriptions, herbals and even foods.

Drug information for consumers and medical professionals.  It provides information about prescription and over-the-counter medications. The pill identifier can help you match size, shape, color... then lead you to the detailed description in their drugs database.

Find clinically important safety information and reports of serious problems with human medical products.

Professional and consumer information on topics such as specific drugs, taking medications safely, buying generic drugs, and saving money on prescriptions.  It also includes a guide to buying drugs safely online, information about recalls and product safety, and drug-drug and drug-food interactions.

Information about how to determine which drugs are gluten free.

A service of the National Library of Medicine, this site contains peer reviewed information regarding drugs that might have effects on lactating mothers and their infants. Among the data included are maternal and infant levels of drugs, possible effects on breastfed infants and on lactation, and alternate drugs to consider.

Drug database from MedlinePLus and the US Pharmacopeia includes information about prescriptions as well as herbs and supplements.

This is a clearinghouse for information about the various assistance programs available from pharmaceutical manufacturers for patients who cannot afford medications.

This site for consumers from the PDR includes information about prescription and non-prescription drugs, herbal medicines, and supplements.

Part of HealthCentral, and run by an independent pharmacist. A good assortment of drug information.

Easy to read information on medications sponsored by the American Society of Health-System Pharmacists.