Also, some expect to feel an effect when they shouldn't with the right technique. With a metered dose inhaler, if you inhale too quickly, it hits the back of the throat, you feel it and you get ...

Purpose: The effects of extreme temperatures on drug delivery of two albuterol sulfate hydrofluoroalkane, metered-dose inhalers (MDIs) were evaluated.Methods. Three Proventil HFA and three ...