<ul>
	<li>Strong cytochrome P450 3A4 inhibitors (e.g. ritonavir): Use with caution. May cause systemic corticosteroid effects.</li>
	<li>Other adrenergic drugs may potentiate effect: Use with caution.</li>
	<li>Diuretics, xanthine derivatives or steroids may potentiate hypokalemia or ECG changes. Use with caution.</li>
	<li>Monoamine oxidase inhibitors and tricyclic antidepressants: Use with extreme caution. May potentiate effect of formoterol fumarate on cardiovascular system.</li>
	<li>Beta-blockers: Use with caution. May block bronchodilatory effects of beta-agonists and produce severe bronchospasm.</li>
	<li>Anticholinergics: May interact additively with concomitantly used anticholinergic medications. Avoid administration of this spray&nbsp;with other anticholinergic-containing drugs.</li>
</ul>