ProAir (albuterol sulfate) is a prescription drug used to treat and prevent bronchospasm (tightening of the airways). ProAir can cause side effects that range from mild to serious. Examples include ...

Asthma may deteriorate acutely over a period of hours or chronically over several days or longer. Need for more doses of Proair HFA than usual may be a sign of deterioration of asthma and requires ...