Introduction [edit]. A carboxyl group consists of a carbon double-bonded to an oxygen and also bonded to a-OH group. Compounds with carboxyl groups are called carboxylic acids or organic acids. The carboxyl group can act as an acid when by donating a proton (H +) to a solution and becoming ionized.
It therefore makes perfect sense to use the bronchodilator first, wait a few minutes, and then to use the steroid inhaler, after the airways have been opened up and are more relaxed. This way, the steroid can penetrate the lungs more effectively, and get down to decrease inflammation in your smaller airways.
Autohaler - Breath Actuated MDI Inhaler. An Autohaler consists of a pressurized canister of medication in a plastic case with a mouthpiece. The Autohaler is breath activated. This means when you inhale, the Autohaler automatically releases a mist of medication. When inhaled correctly, the medication has a better chance to reach the small airways.