Timing Might Be Everything With Asthma Inhalers

WEDNESDAY, April 16, 2025 (HealthDay News) -- Folks with asthma might better control their symptoms by precisely timing when they use their inhaler, a new study says.

A single daily preventive dose of inhaled corticosteroid is best taken at mid-afternoon for effective asthma control, researchers reported April 15 in the journal Thorax.

That timing will suppress the usual nighttime worsening of symptoms better than using an inhaler at other times of the day, researchers said.

They said the perfect timing is 4 p.m., as the body is most responsive to inhaled steroids at that time.