Drug Information Portal (NLM) Access to over 32,000 drugs, search results link to selected drug information from the U.S. National Library of Medicine and other key U.S. Government agencies, e.g. MedlinePlus, PubMed,TOXLINE etc.
drugs.com: Provides more than 24,000 prescription drugs,over-the-counter medicines & natural products. Medical-information suppliers: Wolters Kluwer Health, American Society of Health-System Pharmacists, Cerner Multum and Thomson Reuters Micromedex.
RxList: The Internet Drug Index DrugDigest
WHO Model List of Essential Medicines
WHO Pharmaceutical Products
National Centre for Complementary and Alternative Medicine [NCCAM]
National Guideline Clearinghouse is a public resource for evidence-based clinical practice guidelines. Agency for Healthcare Research and Quality, U.S. Department of Health & Human Services
Cancer Drug Information National Cancer Institute, U.S. Department of Health & Human Services
AIDSinfo Drug Database
Antiretroviral Drug Profiles UCSF Center for HIV Information
International Drug Price Indicator Guide
Drug Discovery Online Australia