Medications for treating asthma include albuterol and Atrovent and inhaled corticosteroids such as Flovent and Pulmicort, according to Mayo Clinic. These medications are only available by prescription. Primatene Mist has not been available since 2011, notes the American Academy of Family Physicians.
Asthmanefrin is another over-the-counter asthma medication currently available online, but there are safety concerns, explains the Food and Drug Administration. Most asthmatics need two types of medications, a quick-acting bronchodilator and a long-lasting control medication, according to the American College of Allergy, Asthma and Immunology. People who think they might have asthma should consult a doctor before using any asthma medication.