Relative dose potencies (95% CI) for formoterol compared with salmeterol using mean maximal effects (minimum for diastolic blood pressure and plasma potassium concentration). Figures were calculated for the four hours before lunch and for the eight hours of the whole study
| Heart rate (bpm) | SBP | DBP | QTc interval (ms) | Plasma K+(mmol/l) | Plasma glucose (mmol/l) | |
| Up to 4 hours | 4.1 (3 to 5.6) | 12.6 (No CI) | 3.3 (2.4 to 4.5) | 7.0 (2.9 to 64) | 5.8 (4.1 to 8.6) | 1.6 (0.7 to 2.7) |
| Over 8 hours | 2.4 (1.2 to 3.8) | 6.0 (2.1 to 59) | 2.1 (1.0 to 3.3) | 4.9 (2.0 to 16) | 3.0 (1.2 to 5.7) | Not calculated |
SBP, DBP = systolic and diastolic blood pressures (mm Hg)