Symbicort 320/9 mg Turbuhaler is a respiratory combination medication that is primarily used to treat the symptoms of asthma and chronic obstructive pulmonary disease (COPD). Asthma is a chronic (long-term) respiratory condition in which the airways narrow, swell, and produce excess mucus, making breathing difficult. COPD is a group of lung diseases that includes emphysema (breathing difficulty) and chronic bronchitis (inflammation of the lining of bronchial tubes).Disclaimer:For More Information Contact Your Physician