This pharmacology textbook provides the need-to-know content necessary to achieve a safe and effective practice in the clinical settings. Now featuring a full-color design and illustration program, this edition fully implements Elsevier's LPN Threads, a shared program of key content and user-friendly design elements. General principles of pharmacology and mathematics with drug calculations are clearly explained. Drug classes are covered with a straightforward application of the nursing process for each class. New chapters cover patient teaching and pain management. A Student CD-ROM, free with each copy of the textbook, reinforces content with NCLEX-style review questions, an audio glossary, animations, video clips, and a drug calculator.