A member asked:

Will a combination of dulera (formoterol and mometasone) and singulair produce a false negative result on a methacholine challenge?

A doctor has provided 1 answer
Dr. Kristin Sokol answered

Specializes in Allergy and Immunology

Yes: You will need to stop these medications prior to your testing. Usually dulera (formoterol and mometasone) needs to be discontinued about 2 weeks prior and singular 24 hours prior. Check with your doctor who ordered the test and ask when to stop these medications.

Answered 5/17/2017

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