Pharmacoepidemiology- By definition it is “the study of the use and effects of drugs in populations”. It is a field that applies the methods of Epidemiology to the content area of Clinical Pharmacology. The data sources available for Pharmacoepidemiological studies as Ad hoc sources are those that are collected during post marketing surveillance studies. Ad hoc is something which is for or concerned with one specific purpose i.e. providing data regarding drug safety in long term use or which concerns about the drug aspects in a large population which is seen in post marketing studies compared to pre marketing studies.
This topic describes: Ad Hoc data sources and automated data systems.