AHFS (R) DI (R) contains the most trustworthy drug information available-all in one place. It is the most comprehensive evidence-based source of drug information complete with therapeutic guidelines and off-label uses. Benefits that are unique to only AHFS (R) Drug Information 2020 include:

The only print compendium designated by the U.S. Congress
The only compendium published by a professional and scientific society
The only reference that has been trusted by pharmacists and other healthcare professionals for over 60 years.


With expanded and revised content supported by more than 94,000 references and incorporating the advice of numerous subject matter experts, AHFS (R) DI (TM) helps you protect your patients. Each edition includes additional online monographs, which are updated throughout the year, and can be found on the For Subscribers section of ahfsdruginformation.com. The password can be found in the preface of the printed edition.