The document outlines the functions and importance of Poison Information Centers (PIC) and Drug Information Centers (DIC), emphasizing their roles in providing vital information about poisoning and drug use, respectively. It details the procedures followed by PIC and DIC for collecting, evaluating, and disseminating information, as well as the sources of data used in their operations. Additionally, it discusses the advantages and disadvantages of primary, secondary, and tertiary sources of drug information.