General Concepts Pharmacology can be defined as the study of substances that interact with living systems through chemical processes, especially by binding to regulatory molecules and activating or inhibiting normal body processes. Medical Pharmacology is often defined as the science of substances used to prevent, diagnose, and treat disease. Katzung BG(Ed). Basic Clinical Pharmacology(1lth Edition). New York: Mcgraw-Hill. 2010 药理学是研究药物与机体(包括人体和病原体)相互作用的规 律及其原理,是一门为临床合理用药防治疾病提供基本理论的 医学基础学科。Katzung BG (Ed). Basic & Clinical Pharmacology (11th Edition). New York: McGraw-Hill, 2010