This book contains 600 comprehensive multiple-choice questions about different topics of clinical pharmacology divided into nine parts. The first part contains multiple-choice questions about general concepts of clinical pharmacology. The remaining parts cover the clinical pharmacology of different body systems. Pharmacology is the scientific branch of medicine that studies the effects of drugs and chemicals on living organisms, where a drug can be broadly defined as any chemical substance, natural or synthetic, that affects a biological system. Clinical pharmacology is a bridge science that incorporates knowledge and skills from several basic science disciplines, including physiology, biochemistry, and cell and molecular biology.