Adverse drug reaction is a condition that describes the harmful effects associated with the usage of given medication for a particular disorder or illness. The adverse drug reactions may occur as a result of single dose or prolonged administration of a drug and or combination of two or more drugs. The adverse drug reactions always imply the harmful and or stressful effects or even the injury that are not favorable to the body. These effects that are generated as a result of adverse drug reactions are abbreviated as adverse drug events. The field of pharmacology that deals with the study of adverse drug reactions is termed as Pharmacovigilance. The adverse drug reactions may be limited to its local area of action or can be systemic where it spreads throughout the systemic circulation. The adverse drug reactions are further classified depending upon the cause of its reaction and secondly on the seriousness and or severity imposed by the reaction in the body. The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information.The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.
Last date updated on June, 2014