Substandard medicines are the products in which composition and ingredients do not meet the correct scientific specifications and may occur as a result of negligence, human error etc.These are consequently ineffective and often dangerous to the patient. Counterfeit medicines are fraudulently mislabeled with respect to identity and/or source.Scientific journal is a periodical publication intended to further progress of science, usually by reporting novel research. There are thousands of scientific journals in publication, and many more have been published at various points in the past. Most journals are highly specialized, although some of the oldest journals publish articles and scientific papers across a wide range of scientific fields. Scientific journals contain articles that are peer reviewed, to ensure that articles meet the journal's standards of quality, and scientific validity.