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.
Best Answer: There are so many types of inhalers.... Advair and Symbicort are your preventative inhalers. They contain a steroid and a long acting bronchodilator. They are usually taken twice a day.... once in the morning and once in the evening. They are used to prevent asthma like symptoms all day. Then there are your rescue inhalers like combivent, albuterol, atrovent, xopenex..... These are meant to be used during an asthma attack hence the title rescue inhalers.. They relieve the airway constriction. There is also a pulmicort inhaler which is a steroid.