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Recent progress in combinatorial drug has led to the generation of a large number of new compounds. microemulsions are versatile systems of great technological and scientific interest to the researchers because of their potential to incorporate a wide range of drug molecules (hydrophilic and hydrophobic) due to the presence of both lipophilic and hydrophilic domains. A micro emulsion is a transparent, thermodynamically stable mixture of two immiscible liquid stabilized by surfactant (or mixture of surfactant). Microemulsions have many advantages for instance, more drug solubility, thermodynamic stability, manufacturing and permeation is easy over conventional formulations that convert them to important drug delivery systems. The design and development of microemulsions aimed at controlling or improving required bioavailability levels of therapeutic agents. Through this review an attempt has been made to focus on several recent developments occurred in the field of microemulsions based applications and which confirms its role as a suitable cargoes for delivery of drugs. In that note, the relevance of this paper and the truncated basic aspects and application on microemulsions are discussed. permeation. Interest in these versatile carriers is increasing and their applications have been diversified to various administration routes in addition to the conventional oral route. This can be attributed to their unique solubilization properties and thermodynamic stability which has drawn attention for their use as novel vehicles for drug delivery [5-7].

Microemulsions have advantages over both colloidal systems under investigation and conventional …