Table 3. Estimates of relative systemic dose potency between formoterol and terbutaline after inhalation via Turbuhaler (n = 17) – statistical analyses of the horizontal shift in systemic cumulative dose–response curves.
| By number of inhalations | By µg | |||
|---|---|---|---|---|
| Effect | Mean | 95% confidence interval | Mean | 95% confidence interval |
| Plasma potassium decrease | 0.53 | (0.40, 0.64) | 59 | (45, 71) |
| Plasma lactate increase | 0.48 | (0.39, 0.56) | 53 | (43, 62) |
| Q-Tc prolongation | 0.52 | (0.34, 0.67) | 57 | (38, 74) |