Deposition Dosages of Three Cromolyn Forms by Cascade Impactor

Table 2

Results of the study.

	Capsule	pMDI	Jet-type nebulizer; C-28	Mesh-type nebulizer; NE-U22
MMAD (μm)	50.0	5.2	3.2	5.2
Distribution pattern	Bimodal	Unimodal	Unimodal	Unimodal
Percentage of particles 2–6 μm	17.0%	51.8%	49.0%	40.4%
Standard dose per one-time use (mg)	20	2	20	20
Amount deposited in the bronchi by administration of treatment dose (mg)	3.4	1.0	9.8	8.1

MMAD: massive medium aerodynamic diameter, pMDI: pressured metered dose inhaler.