What time of day is best for asthma preventer use? Research hints at an answer

Researchers suggest a single dose midafternoon might be ideal.

A single dose of inhaled corticosteroid at 4pm may optimise lung function in patients with asthma who otherwise succumb to nocturnal dips, a small study shows.

UK researchers have successfully tested their theory that taking a preventer puff midafternoon gives superior results compared with a single morning dose or the standard twice-daily regimen.