Table V.

In vitro Drug Release Parameters Regression Coefficient of the Line of Percent Drug Released Vs Square Root of Time, Mean Flux and Diffusion Coefficient of Spray Dried Formulations

Formulations	Regression Coefficient (r 2)	Mean Flux (μg/min)	Diffusion coefficient (cm2/s)
SDSL	–	195.2	2.52 E-03
SLDPIH	0.9420	41.5	6.96 E-04
SLDPIS	0.9533	40.2	6.82 E-04
SLDPIL	0.9615	38.5	6.62 E-04

SDSL: spray dried plain dapsone with lactose, SLDPIH: spray dried liposomal dry powder inhaler with hydrolyzed gelatin, SLDPIS: spray dried liposomal dry powder inhaler with sucrose, SLDPIL: spray dried liposomal dry powder inhaler with lactose