QVAR (beclomethasone disproportionate) is an inhaled medication that can be prescribed as a prophylactic therapy to reduce the occurrence, severity, and duration of acute episodes ofasthma. QVAR is also used off-label to decrease symptoms ofChronic Obstructive Pulmonary Disorder (COPD). Patients with asthma may have acute episodes of bronchospasm, which is when their airways constrict (tighten) and it becomes harder to breathe. During bronchospasm, the lungs become inflamed, so the airways cannot hold as much air and the bronchioles exchange less gas with the bloodstream QVAR is an inhaled corticosteroid (ICS) that works by reducinginflammationin the lungs. ICS drugs inhibit cells of the immune system and prevent them from releasing chemical signals, causing a downstream decrease in inflammation.