AHFS Drug InformationThe mission of AHFS Drug Information® (AHFS DI®) is to provide an evidence-based foundation for safe and effective drug therapy. AHFS DI® is a collection of drug monographs kept current by ongoing electronic updates (e.g., AHFSfirstReleases™, MedWatch notices, http://www.ahfsdruginformation.com) and by a revised master print volume issued each year.