Formoterol fumarate concentration (mg/mL)       Accuracy (% recovery)  
Sample 1 Sample 2 Sample 3 Mean RSD (%)
0.064 98.9 98.7 98.3 98.6 0.30
0.127 98.1 98.2 98.2 98.2 0.01
0.193 100.5 100.2 100.5 100.4 0.17
Mometasone furoate concentration (mg/mL)     Accuracy (% recovery)      
Sample 1 Sample 2 Sample 3 Mean RSD (%)
2.016 101.8 102.0 101.8 101.9 0.08
4.031 101.4 101.3 101.3 101.4 0.07
6.127 102.3 102.3 102.3 102.3 0.01
Table 1: Accuracy (% recovery) of formoterol fumarate and mometasone furoate in metered dose inhalation formulation at three concentration levels.