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