For authoritative, accurate, and current health information, see these websites:
- MedlinePlus: Comprehensive personal health information from the National Library of Medicine and the National Institutes of Health. Includes information on drugs and lab tests.
- Mayo Clinic Patient Care and Health Information: Easy to read and A to Z sections on Diseases and Conditions, Symptoms, Tests and Procedures, and Drugs and Supplements..
- Merck Manual Consumer Version: Easy to understand sections including Medical Topics, Symptoms, Emergencies, and Drug Information. Also freely available through Merck Manuals are Merck Manual Professional Version and Merck Veterinary Manual.