The drug labeling, or package insert, that accompanies drug products, is the most complete single source of information on the drug. They are available from your local pharmacist and are also reprinted in the Physician’s Desk Reference (PDR), which can be found in many libraries. In addition, the package insert is available from the manufacturer and may often be found on the drug manufacturer’s Web site. Labeling for drugs approved after 1998 may often be found at Drugs@FDA.
