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Is It Better to Take My Controller Inhaler in the Morning or at Night?

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I was recently prescribed an inhaler that you only take once a day. Does it matter if I take it at night or in the morning?

This type of inhaler is referred to as a controller inhaler. It should be used on a regular daily basis to control symptoms (e.g., asthma symptoms). This inhaler could be used once a day at night or once a day in the morning. Studies show that once-daily dosing in the evening can be more beneficial to control symptoms. It can improve lung function. In addition, asthma symptoms can be worse in the evening hours and overnight. This would also favor once-a-day dosing of a controller inhaler at night.

Asthma, Medicines, Treatment
Answered by

John M. James, MD, is a board-certified allergist. He is also President of Food Allergy Consulting and Education Services, LLC. He has worked as a medical specialist in the field of allergy, asthma, and immunology for over 30 years. Dr. James received his bachelor’s degree from the University of Arkansas and his Doctor of Medicine degree from the University of Tennessee. He is board certified by the American Board of Allergy and Immunology.

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