Table IV.

Comparison of Aerodynamic Characteristic of Rehydrated Lyophilized Rifampicin-Loaded PEG–DSPE Formulations Following Nebulization at a Flow Rate of 30 ml/min for 15 min

Parameters	Formulations
	F2	F8
	R/mPEG2000–DSPE	R/mPEG5000–DSPE
MMAD (µm)	2.6 ± 0.1	2.6 ± 0.4
GSD	2.4 ± 0.1	2.6 ± 0.4
ED (%)	61.1 ± 1.6	62.9 ± 3.8
FPF ≤ 3.9 µm (%)	40.8 ± 1.3	42.1 ± 4.6
Size ≤ 11 to ≥3.9 µm (%)	17.25 ± 0.9	16.86 ± 0.9
Size ≥ 11 µm (IP–PS) (%)	3.1 ± 0.7	4.1 ± 0.9

Mean ± SD; N = 4

IP induction port (throat), PS pre-separator