When the ME were mixed with Carbopol 940 whichhad adequately swelled in water, the appearance of Carbopol 940viscous solution became ivory white, which was in accordance withthe results obtained by Chen et al. [36]. The possible reason is thatthe dehydration of some ingredients such as surfactant and co-surfactant in ME makes Carbopol 940 dissociated from hydratedstate. The prepared hydrogels of sertconazole nitrate microemul-sion were subjected for drug content, viscosity