Providing practical advice, this non-technical book explains the sometimes complex scientific processes of the usage of medicine and drugs. The book is intended as a reference source for use by the medical profession, and in health care organizations, schools and libraries. It contains all commonly-prescribed and widely used over-the-counter drugs with a special drug finder index to over 2000 generic and brand-name drugs. The book also provides information for specific groups such as pregnant women, children and people over 60. Detailed sections on vitamins, minerals and drugs of addiction and abuse are also included.