Nanoliposomal Topical Formulation for Increasing Safety and Combating Microbial Drug Resistance in Leprosy

Nanoliposomes were prepared using solvent injection method and topical spray using simple dispersion method. The particle size and % Entrapment Efficiency were found 18.01 ± 0.21 nm and 87.71 ± 0.12% respectively. TEM studies showed that the particles were in spherical shape. Drying time, volume per spray, area of film and dose uniformity were found to be 280 ± 0.002 sec, 0.16± 0.021 ml, 155.57 ± 0.012 cm2 and 0.15± 0.0012 ml respectively which showed good spraying conditions on the affected area. Stability study shows that dapsone and chaulmoogra oil loaded nanoliposomal topical spray was stable at accelerated condition up to 1 month. The present investigation provides a safe approach by improving the outer membrane permeability to combat microbial drug resistance and increasing safety in leprosy treatment.