URL of this page: https://medlineplus.gov/about/general/reviewandupdate/

Review and Update of Content on MedlinePlus

MedlinePlus provides health information from several different sources. Some pages, like the medical encyclopedia and drug information, are licensed from outside sources. Other pages, like health topic pages and medical tests, are created for MedlinePlus. Information from different sources is reviewed and updated on different schedules.

Here's how information hosted on MedlinePlus is reviewed and updated:

Health Topics

  • Updated as new information becomes available.
  • Broken links are checked and fixed daily.
  • A "topic last reviewed" date is available at the bottom of each health topic page. This date indicates when the entire topic was reviewed and updated.
  • "Page last updated" indicates when any information was added to or removed from the health topic page.

Medical Tests

  • Reviewed annually.
  • Content is also updated as needed between annual review cycles.
  • A "page last reviewed" date is available at the bottom of each medical test page. This date indicates when all of the information on the page was reviewed and updated.
  • "Page last updated" indicates when any information was added to or removed from the medical test page.

A.D.A.M. Medical Encyclopedia

  • New and updated articles and illustrations are added monthly.
  • A review date and the names of medical reviewers are included near the bottom of each encyclopedia page.
  • "Page last updated" indicates when we posted the current version of the page to MedlinePlus.
  • A.D.A.M. Editorial Policy

Drugs & Supplements

  • Drug information from AHFS® Consumer Medication Information, copyrighted by the American Society of Health-System Pharmacists (ASHP), Inc.
    • New and updated drug pages are added monthly.
    • Content is revised when there are important changes to a drug's information.
    • A "last revised" date is available near the bottom of each drug page.
    • "Page last updated" indicates when we posted the current version of the page to MedlinePlus.
  • Supplement information from the Natural Medicines Comprehensive Database Consumer Version
    • New and updated supplement pages are added monthly.
    • A "last revised" date is available near the bottom of each supplement page.
    • "Page last updated" indicates when we posted the current version of the page to MedlinePlus.
    • Natural Medicines Editorial Principles and Process

Health information in multiple languages

Do you have a suggestion for an update to MedlinePlus? Please use the "Customer Support" link at the top of any page to send us your recommendation.