Pharmacology is a critical subject for the Nursing Licensure Examination (NLE), encompassing the study of drugs, their actions, therapeutic uses, and effects on the human body. This field includes understanding drug classifications, mechanisms of action, side effects, interactions, and proper administration techniques. Nurses must be proficient in calculating dosages, recognizing adverse reactions, and educating patients about their medications. Mastery of pharmacology is essential for ensuring patient safety, optimizing therapeutic outcomes, and providing high-quality care. Comprehensive knowledge in this area equips nurses with the skills needed to effectively manage and administer medications in various healthcare settings.