RT Book, Section A1 Ciccone, Charles D. A1 Bednarek, Melissa L. A1 Miller, Kenneth L. SR Print(0) ID 1188527733 T1 Basic Principles of Pharmacology T2 Pharmacology in Rehabilitation, 5e YR 2022 FD 2022 PB F. A. Davis Company PP New York, NY SN 9781719645348 LK fadavisat.mhmedical.com/content.aspx?aid=1188527733 RD 2024/04/24 AB Pharmacology is the study of drugs. In its broadest definition, a drug can be described as “any substance that, when taken into a living organism, may modify one or more of its functions.”1 In this sense, a drug includes any substance that alters physiological function in the organism, which may have positive or negative effects. In terms of clinical pharmacology, it has traditionally been the beneficial or therapeutic effects that have been of special interest.