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Although no formal drug interaction studies have been performed, tiotropium bromide has been used concomitantly with other drugs commonly used in the treatment of COPD and asthma, including sympathomimetic bronchodilators, methylxanthines, oral and inhaled steroids, antihistamines, mucolytics, leukotriene modifiers, cromones, anti-IgE treatment without clinical evidence of drug interactions.
Tiotropium bromide has been used concomitantly with other drugs commonly used in the treatment of COPD, including sympathomimetic bronchodilators and oral and inhaled steroids without clinical evidence of drug interactions.
The co-administration of tiotropium bromide with other anticholinergic containing drugs has not been studied and therefore is not recommended.
