Marketing Communications are the resources by which companies attempt to notify, convince and recap consumers – directly or incidentally – about the merchandises and brands they trade. Marketing Communications represents the expression of the firm and its brands and are resources by which it can generate a dialogue and form relations with consumers. In this article, Researcher has endeavored to review information about previous related research papers and articles which highlight importance about the area of study chosen. These studies are majorly related to prescription behavior of Doctors, impact on consumers and various strategies carried out by organization and implemented by its sales force. Few other factors are also reviewed which are majorly related to pharmaceutical industry and its relevance for study. It also reveals the scope of further study. These literatures are helpful for problem identification and to prepare scientific research plans.