Skip navigation
MedlinePlus Trusted Health Information for You MedlinePlus Trusted Health Information for You MedlinePlus Trusted Health Information for You
Contact Us FAQs Site Map About MedlinePlus
español Home Health Topics Drugs & Supplements Medical Encyclopedia Dictionary News Directories Other Resources
U.S. National Library of MedicineNational Institutes of Health

Question: How often is MedlinePlus updated?


  • Health Topics pages:

    • Reviewed at least every six months. We add new links every day.

    • There are two dates in the footer of every Health Topic page:

      • "Date last updated" indicates when information was added to or removed from that page.

      • "Topic last reviewed" indicates when the entire topic was systematically reviewed.

    • The update dates on the external pages that we link to are all different and depend on the schedule of the sponsoring organization. Check the individual page or site for date information.

  • Other MedlinePlus content:

    • Dictionary: The current copyright date is 2002, and it will be updated later this year.

    • Drug and Supplement Information:

      • AHFS® Consumer Medication Information from the American Society of Health-System Pharmacists is updated monthly.

      • Natural Standard is updated annually.

    • Interactive Health Tutorials: Updated annually.

    • Medical Encyclopedia: Updated quarterly.

    • News: Updated daily.

      • Reuters news stories remain on the site for 30 days.

      • Healthday stories remain on the site for 90 days.

Return to the list of MedlinePlus FAQs