<p>This inhalation aerosol has been used concomitantly with other drugs, including sympathomimetic bronchodilators, methylxanthines and steroids, commonly used in the treatment of COPD. No formal drug interaction studies have been performed with this inhalation aerosol and these or other medications commonly used in the treatment of COPD. Ipratropium Bromide should be co-administered cautiously with other anticholinergic agents and sympathomimetic agents, which may increase the risk of adverse cardiovascular effects. Beta-2-agonist containing drugs, like this inhalation aerosol, should be administrated with extreme caution in patients with non-potassium sparing diuretics, monoamine oxidase inhibitors or tricyclic antidepressants.</p>