This popular core nursing pharmacology textbook provides unique coverage of nursing interventions for drug therapy with related rationales. Highly praised for its organized and readable presentation, the text explains the "why" behind each nursing action and emphasizes how drugs work differently in different patients. New to the Eighth Edition are case studies integrated into each chapter with case-based questions that foster critical thinking. New Research Briefs summarize current research and its nursing implications. A new chapter covers drugs for obesity, and all nutrition products have been consolidated into one chapter. New NCLEX(R)-style questions appear at the end of each drug chapter.