Dry Powder and Budesonide Inhalation Suspension Deposition Rates in Asthmatic Airway-Obstruction Regions

Table 3

Budesonide particle size by application device per Cascade Impactor. On budesonide inhalation therapies NE-C28 and NE-U22 have advantage of 78% and 59% with 2 < particle size < 6 µm respectively. These data are double deposit percentage of Turbohaler and Symbicort dry powder.

	Mean	Turbo haler	Symbicort	NE-U22	NE-C28
MMAD(µm)	Mean	2.20	2.60	4.52	3.84
	SD	0.47	0.68	0.37	0.15
<6 µm %		80	74	71	95
2 < particle size < 6 Μm%		33	32	59	78
<2 µm%		46	42	11	17