Skip to main content


We craft our products for healthcare professionals, never losing sight of the patient.
Doctor holding iPhone

Drug Interactions from The Medical Letter®

Quickly Discover Drug Interactions and Improve Patient Safety

Drug Interactions from The Medical Letter® is an unbiased mobile resource that lets you search for multiple drugs, see all interactions, and review and research options for safe drug administration.




The Drug Interactions app from The Medical Letter® provides users with an unbiased resource to quickly search and find potentially life-threatening interactions between multiple medications.

Start by searching for drugs by both generic and brand name and add them to a list has been built into the app. All known interactions between all selected drugs can then be sorted alphabetically or by significance.

Detailed monographs about each interaction are provided so you can find recommendations for precautionary measures, links to supporting literature in PubMed, and much more. Drugs and interactions are updated regularly so you can always ensure safe drug administration and patient safety.


  • Unbiased drug information – no advertising or pharmaceutical influence
  • Regular updates and FDA approvals to ensure patient safety
  • Search box for locating interactions by generic and brand names
  • Ability to create a list of multiple drugs and view all interactions
  • Drug interactions sorted by significance or name
  • Interaction details including precautionary measures, management, and more
  • Lists of all interactions for any specific drug
  • References with links to the supporting literature in PubMed
  • Favorites for bookmarking important interactions



Jean-Marie Pflomm, Pharm.D.; Susan Daron, Pharm.D.; Corinne Morrison, Pharm.D.; Michael Viscusi, Pharm.D.

iOS devices running iOS 12.2 or higher (iPad, iPhone)
Android devices running OS 7.0 or higher

Group Discounts

Find out about affordable site licenses and group discounts for your group or institution.

Group Discounts