Table 2.
Solute Concentration (% w/v) for the 50:50 Drug Nebulizer Mixture of AS:NaCl Versus Dried Particle Size and Drug (AS) Delivery Rate for Initial Monodisperse 5.3 μm Nebulized Droplets
| Solute concentration (w/v) % | Initial droplet diameter (dinitial; μm) | Final geometric diameter (dgeo; μm) | Final aerodynamic diameter (dae; μm) | Drug mass delivery rate (μg/min) |
|---|---|---|---|---|
| 0.001 | 5.3 | 0.10 | 0.12 | 2 |
| 0.005 | 5.3 | 0.17 | 0.21 | 10 |
| 0.01 | 5.3 | 0.21 | 0.27 | 20 |
| 0.05 | 5.3 | 0.36 | 0.46 | 100 |
| 0.1 | 5.3 | 0.45 | 0.58 | 200 |
| 0.5 | 5.3 | 0.77 | 0.99 | 1000 |
| 1 | 5.3 | 0.97 | 1.24 | 2000 |
| 5 | 5.3 | 1.65 | 2.13 | 10,000 |
AS, albuterol sulfate; NaCl, sodium chloride.