This newly revised, expanded 2012 edition of the bestselling reference book by one of America's most trusted family physicians gives you the information you need and can depend on. The classic guide to all major prescription and nonprescription drugs, featuring revised, up-to date FDA information and an A-Z list of medical conditions and their commonly used drugs for easy reference. It includes coverage of dosage and length of time before the drug takes effect, side effects, special precautions, interactions with other food and drugs, standards for use by different age groups, and much more. It also features a generic and brand name directory, a comprehensive glossary, and complete index by generic, brand, and class name.