Formulation and Evaluation of Fusidic Acid Emulgel

Emulgel have emerged as one of the most interesting topical delivery system as it has dual control release system i.e gel and emulsion. Topical applications of drug offers many advantages for delivering drug directly to the site of action and deliver the drug for extended period of time at effected site. The major objective behind this formulation is to enhance topical delivery of hydrophobic drug (Fusidic acid) by formulating Fusidic acid emulgel by using carbopol 934 as gelling agent. In addition light liquid paraffin as oil, span 20 as emulsifier and propylene glycol as co-surfactant were selected for the preparation of emulgel. Fusidic acid is steroidal bacteriostatic agent produced from Fusidium coccineum fungus belongs to class of steroids but has no corticosteroids effect and which is useful for the treatment of number of infections. Fusidic acid binds to protein and ribosomes and inhibits bacterial protein synthesis. The prepared emulgel were evaluated for their physical appearance, pH determination, viscosity, spreadability, in-vitro drug release, antimicrobial activity, skin irritation study and stability. All the prepared emulgel showed acceptable physical properties. The best formulation E9 shows better drug release when compared to all formulation. Keywords: Emulgel, Carbopol 934, Topical formulation, Antimicrobial activity, optimization, Fusidic acid