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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
REVIEW
Combination of formoterol and tiotropium in the treatment of COPD: effects on lung function.
COPD 2009 October
Bronchodilators are central in symptomatic management of all stages of COPD. For patients whose COPD is not sufficiently controlled by monotherapy, combining an inhaled anticholinergic and a ss(2)-agonist is a convenient way of delivering treatment and obtaining better lung function and improved symptoms. Formoterol (beta(2)-agonist) and tiotropium (anticholinergic) are long-acting bronchodilators with different mechanisms of action. Formoterol has a fast onset and a bronchodilator effect of approximately 12 h, while tiotropium has a 24-h bronchodilator effect and is given once daily. Currently, there is no documentation that tiotropium is superior to formoterol or the contrary, but a combination of tiotropium and formoterol is more effective than single drugs alone in inducing bronchodilation and a bronchodilator-mediated symptom benefit in patients suffering from COPD. Once-daily or twice-daily formoterol, added to tiotropium, are both better than tiotropium alone, but the published evidence suggests twice-daily formoterol is the best add-on option.
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