The newly revised and updated 20th edition of the  Handbook of Nonprescription Drugs: An Interactive  Approach to Self-Care is a comprehensive and  authoritative textbook on self-care and nonprescription  medications—nonprescription drugs, nutritional  supplements, medical foods, nondrug and preventive  measures, and complementary therapies. The major goals for this edition were to: 

• enhance the content in all chapters from the previous  edition with up-to-date information beneficial to all health care providers and students, 

• update the universal objectives to complement the  content in the chapters focused on medical disorders, and 

• add abstracts for each online chapter that provide  concise introductory material focused on key features of each chapter.