July 29, 2012 Last week, the FDA approved aclidinium bromide (Tudorza Pressair) as a daily inhaler treatment for chronic obstructive pulmonary disease (COPD), the agency announced in a press release. Aclidinium is a long-acting muscarinic antagonist (or "anticholinergic") bronchodilator that will compete with tiotropium (Spiriva), which was launched in 2004 and until now was the only available anticholinergic bronchodilator inhaler therapy for COPD.