Figure 3From: The 24-h FEV1 time profile of olodaterol once daily via Respimat® and formoterol twice daily via Aerolizer® in patients with GOLD 2–4 COPD: results from two 6-week crossover studiesFEV 1 24-h profiles of olodaterol 5 and 10 μg and formoterol 12 μg BID compared to placebo at week 6 in (a) study 1222.24 and (b) study 1222.25. BID = twice daily; FEV1 = forced expiratory volume in 1 sec.Back to article page