No systematic interaction studies have been performed. It is expected that adverse effects of<unk>  increase if it is combined with other muscarinic antagonists. In clinical practice, no interactions with other COPD medications such as glucocorticoids, β2-adrenergic agonists and theophylline have been described. As<unk>  does not relevantly interact with cytochrome P450 liver enzymes or P-glycoprotein, and is quickly metabolized as soon as it reaches the bloodstream, it is considered to have a very low potential for interactions.
Aclidinium bromide
Umeclidinium bromide
Chloropicrin
Tiratricol
Bifluranol
Hydrastine
Brinzolamide
Pirisudanol