DEPARTMENTS: Drugs in DermatologyAminolevulinic Acid Photodynamic Therapy for Actinic KeratosesPeterson, Katherine L.; Zito, Patrick M.Author Information Katherine L. Peterson, BA, OMS-IV, University of New England College of Osteopathic Medicine, Biddeford, ME. Patrick M. Zito, DO, PharmD, RPh, FASCP, FRSPH, College of Health Sciences, School of Nursing, Walden University, Minneapolis, MN. The authors declare no conflict of interest. Correspondence concerning this article should be addressed to Patrick M. Zito, DO, PharmD, RPh, FASCP, FRSPH, College of Health Sciences, School of Nursing, Walden University, 100 Washington Ave., S. Suite 900, Minneapolis, MN 55401. E-mail: Patrick.email@example.com Journal of the Dermatology Nurses' Association: May/June 2017 - Volume 9 - Issue 3 - p 161-163 doi: 10.1097/JDN.0000000000000310 Buy Metrics Abstract ABSTRACT By definition, a drug is a medicine or substance that exerts a physiologic effect on an organism. In dermatology, various medications and substances are utilized on a daily basis, ranging from topical treatments to anesthetics in micrographic surgery. The purpose of this section is to focus on some of the more common substances, specifically how they work, how they are utilized, and routine alternatives (if available). The mechanism of action, usage, and alternative options of the medication aminolevulinic acid are discussed. Copyright © 2017 by the Dermatology Nurses' Association.