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Asmanex (Mometasone Furoate Inhalation) - Drug Interactions, Contraindications, Overdosage, etc



In clinical studies, the concurrent administration of ASMANEX TWISTHALER and other drugs commonly used in the treatment of asthma was not associated with any unusual adverse reactions.

Inhibitors of Cytochrome P450 3A4

Ketoconazole, a strong inhibitor of cytochrome P450 3A4, may increase plasma levels of mometasone furoate during concomitant dosing [see Clinical Pharmacology ].


Chronic overdosage may result in signs/symptoms of hypercorticism [see Warnings and Precautions ]. Because of low systemic bioavailability and an absence of acute drug-related systemic findings in clinical studies, acute overdose is unlikely to require any treatment other than observation. Single daily doses as high as 1200 mcg per day for 28 days were well tolerated and did not cause a significant reduction in plasma cortisol AUC (94% of placebo AUC). Single oral doses up to 8000 mcg have been studied on human volunteers with no adverse reactions reported.


Status Asthmaticus

ASMANEX TWISTHALER therapy is contraindicated in the primary treatment of status asthmaticus or other acute episodes of asthma where intensive measures are required.


ASMANEX TWISTHALER is contraindicated in patients with known hypersensitivity to milk proteins or any ingredients of ASMANEX TWISTHALER. [see Warnings and Precautions and Description].

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