A blue asthma inhaler typically contains a medication known as a short-acting beta-agonist (SABA). The most common SABA in these inhalers is albuterol (also known as salbutamol in some countries). These inhalers are often referred to as "rescue" inhalers because they are used to quickly relieve symptoms of asthma, such as wheezing, coughing, and shortness of breath.
