PREPARATION, CHARACTERIZATION, AND OPTIMIZATION OF MICROEMULSION FOR TOPICAL DELIVERY OF ITRACONAZOLE

  • TEJAS B PATEL Faculty of Pharmacy, Dharmsinh Desai University, Nadiad, Gujarat, India
  • Tushar R Patel Faculty of Pharmacy, Dharmsinh Desai University, Nadiad, Gujarat, India
  • B N Suhagia Faculty of Pharmacy, Dharmsinh Desai University, Nadiad, Gujarat, India

Abstract

Microemulsions (ME) have been proved to increase the cutaneous absorption of both lipophilic and hydrophilic medicaments when compared to conventional vehicles (emulsions, pure oils, aqueous solutions). Hence the aim of present investigation is to prepare, characterize and optimize microemulsion of Itraconazole (ITZ). Itraconazole is an anti fungal agent, most widely used in the ringworm infection. It is classified as class III drug as per BCS classification. It indicates lower permeability through skin. Therefore objective of the research is to improve permeability of Itraconazole through skin. Microemulsion was prepared using eucalyptus oil, tween 20 and methanol as oil phase, surfactant and co-surfactant respectively. Pseudo ternary phase diagrams were constructed to find out optimum ratio of oil: Smix (surfactant: Co-Surfactant): water. A 32 full factorial design was applied for the optimization of prepared microemulsion. Microemulsion was evaluated for globule size, zeta potential, in-vitro diffusion study etc. Results of globule size measurements and zeta potential indicated ME7 had high stability then other formulation of microemulsion. For the optimization transdermal flux and %Q6 was selected as dependant variables. Results of optimization study also revealed ME 7 as optimized microemulsion for high permeability to the skin. Further ME7 was compared to marketed Itraconazole preparation (ITASPORE) and evaluated using similarity factor F2. Results of F2 value was not near to 100 indicated there is no similarity in diffusion profiles of ME7 and ITASPORE. Hence, indirectly it suggest there was increased in permeability of drug by preparing microemulsion.
Keywords: Microemulsion, Factorial Design, Eucalyptus oil, Tween 20, Desirability Analysis

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PATEL T, Patel T, Suhagia B. PREPARATION, CHARACTERIZATION, AND OPTIMIZATION OF MICROEMULSION FOR TOPICAL DELIVERY OF ITRACONAZOLE. JDDT [Internet]. 14Mar.2018 [cited 31Oct.2020];8(2):136-45. Available from: http://www.jddtonline.info/index.php/jddt/article/view/1731