AHFS DI from the American Society of Health-System Pharmacists' (ASHP) is the most comprehensive source of unbiased and authoritative drug information available to health professionals today. A wholly independent staff of drug information pharmacists and other professional editorial and analytical staff thoroughly research AHFS DI content. Authors incorporate clinical research findings, therapeutic guidelines, and Food and Drug Administration (FDA) approved labeling to ensure that monographs include an evidence-based foundation for safe and effective drug therapy.