Aclidinium Bromide + BromideUnknown
( 7.2 ) 7.1 Sympathomimetics, Methylxanthines, Steroids In clinical studies, concurrent administration of aclidinium bromide and other drugs commonly used in the treatment of COPD including sympathomimetics (short-acting beta 2 agonists), methylxanthines, and oral and inhaled steroids showed no increases in adverse drug reactions.
Source: FDA drug label - aclidinium bromide