Table 2 Weights and volumes of salbutamol HFA134a propellant pMDIs
From: Asthma pressurised metered dose inhaler performance: propellant effect studies in delivery systems
Small salbutamol SalamolR | Large salbutamol VentolinTM | |
|---|---|---|
Actuations of a first full pMDI | ||
Cartridge weight | ||
Full | 15.64 g | 28.75 g |
Empty | 7.76 g | 11.43 g |
Total volume | 1640 ml | 3885 mla |
Actuations of a second full pMDI | ||
151–200 (50) | 350 ml | 800 ml |
201–210 (10) | 70 ml | 160 ml |
211–220 | 70 ml (last “sensing”) | 160 ml (last “sensing”) |
221–230 | 65 ml | 100 ml |
231–240 | 30 ml | 70 ml |
241–250 | 5 ml | 40 ml |
251–260 | 0 ml | 15 ml |
Total volume | 1640 ml | 3745 mla |