To prepare for a future that will demand more from them, pharmacy technicians will need an understanding of the medications they are handling--their actions, doses, routes of administration, and interactions. Understanding Pharmacology for Pharmacy Technicians, 2nd Edition, provides a basis for pharmacology, the study that includes the medication knowledge technicians need to function in modern pharmacy. As in the first edition, the chapters are organized around body systems and disease states, presented in an order similar to that of pharmacists' textbooks, with sections on the nervous, endocrine, musculoskeletal, cardiovascular and renal, respiratory, gastrointestinal, and hematologic systems, followed by treatments for infectious diseases, cancer, and conditions of the skin, eye, ear, nose, and throat. All chapters have been updated to reflect the most current medications and information. A new chapter on pharmacogenomics discusses the science of precision medicine and relates its concepts to testing and dosing protocols that are becoming increasingly common in everyday pharmacy.