1. Ind P Borszormenyi Nagy G Pietinalho A Shiner R Villasante C Brander R Formoterol 4.5 microgram used as needed via turbuhaler was as safe and well tolerated as terbutaline 0.5 mg European Respiratory Society, Oct 9-13; Madrid, Spain 1999 1086
2. Safety of formoterol by Turbuhaler as reliever medication compared with terbutaline in moderate asthma;Ind;European Respiratory Journal,2002
3. Jain A Raghuram J Randomized controlled study of the safety and efficacy of PRN formoterol compared to PRN albuterol for the management of asthma American Thoracic Society 100th International Conference, May 21-26, Orlando 2004 B36 Poster G17
4. Effect of budesonide in combination with formoterol for reliever therapy in asthma exacerbations: a randomised controlled, double-blind study;Rabe;Lancet,2006
5. SD-039-0734 Efficay of Symbicort® Turbuhaler® 160/4.5 μg as needed versus Oxis® 4.5 μg as needed and Bricanyl® 0/4 mg as needed in adults and adolescents with asthma receiving Symbicort® Turbuhaler® 160/4.5 μg twice daily as maintenance treatment. A 12-month, randomised, double-blind, parallel group, active-controlled, phase IIIB, multi-centre study AstraZeneca Study Report