Reflecting the most recent advances in the field, this up-to-date Fourth Edition is a succinct yet comprehensive source of information on basic pharmacologic structures and key pharmacotherapeutic connections. Each two-page spread contains concise text on the left complemented by detailed, full-color illustrations on the right to help users quickly digest important facts and concepts. Four color-coded sections provide readers with a solid framework with which to approach the latest developments in pharmacology: Part 1: General Pharmacology explains substance formulation, absorption, distribution, elimination, and molecular mechanisms of action. Part 2: Systems Pharmacology places special emphasis on the functional and therapeutic aspects of a wide range of medicinal agents. Part 3: Therapy of Selected Diseases presents expanded coverage of migraines, sleep disorders, and obesity. Part 4: Drug Index contains the most current data on over 700 drugs listed by their generic and brand names.