Terry L. Schwinghammer, BS Pharm, PharmD, BCPS, FCCP, FASHP, is Professor and Chair of the Department of Clinical Pharmacy at the West Virginia University School of Pharmacy. He has authored more than 60 research papers and journal articles and is editor of The Pharmacotherapy Casebook.

Joe DiPiro, PharmD, is Professor and Dean of VCU School of Pharmacy. He served a residency at the University of Kentucky Medical Center and a fellowship in Clinical Immunology at Johns Hopkins University.

Cecily DiPiro, PharmD, wrote the last three editions of this guide.

Vicki Ellingrod-Ringold, PharmD, is John Gideon Searle Professor of Pharmacy and Associate Dean for Research and Graduate Education at University of Michigan's College of Pharmacy.