A member asked:

Does singulair cross the blood brain barrier and does it cause dementia. singulair, now available as the generic montelukast, is a popular and effective allergy medication also used in asthmatics who have allergies. i read where it can. is it true?

4 doctors weighed in across 2 answers
Dr. Michael Zacharisen answered

Specializes in Allergy and Immunology

Singulair (generic montelukast) does indeed cross the blood brain barrier; however, it is NOT linked to dementia. In fact is it being studied in clinical trials as a possible TREATMENT for Alzheimer's Disease.

Answered 6/22/2021

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No, this drug does NOT CAUSE dementia.

Answered 6/16/2021

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