Albuterol is used to treat or prevent bronchospasm in patients with asthma, bronchitis, emphysema, and other lung diseases. This medicine is also used to prevent wheezing caused by exercise (exercise-induced bronchospasm). Albuterol belongs to the family of medicines known as adrenergic bronchodilators. Adrenergic bronchodilators are medicines that are breathed in through the mouth to open up the bronchial tubes (air passages) in the lungs. They relieve cough, wheezing, shortness of breath, and troubled breathing by increasing the flow of air through the bronchial tubes. This medicine is available only with your doctor's prescription. Once a medicine has been approved for marketing for a certain use, experience may show that it is also useful for other medical problems. Although these uses are not included in product labeling, albuterol is used in certain patients with the following medical condition: Hyperkalemia (too much potassium in the blood).