Guidance for clinicians on how to interpret conflicting evidence from recent studies
Patients with advanced chronic obstructive pulmonary disease (COPD) have profound functional impairment and increased mortality.1 Inhaled bronchodilators, including the anticholinergic agents tiotropium bromide and ipratropium bromide, relieve symptoms and improve lung function and quality of life. Tiotropium also reduces COPD exacerbations and hospitalisations.2
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