A Review:Dry Emulsion

The dry Emulsion formulation aim to improve the bioavailability of drug substances and reduce their side effects. Dry Emulsions are attractive because they are physically and microbiologically stable formulations. They represent a potential oral drug delivery system for lipophilic and low soluble drug substances. Dry emulsions are prepared by drying liquid o/w emulsions containing a solid carrier in the aqueous phase. The solid carrier provides the dry emulsions with bulk and mass. Dry emulsions can be prepared by spray drying, lyophilization and rotary evaporation. Unfortunately the dry emulsions were cohesive powders. The cohesiveness are reduced by addition of sucrose. For preparing dry Emulsions the organic fillers used are Lactose, Mannitol, Malto-dextrins.