Symbicort contains a combination of budesonide and formoterol. Budesonide is a steroid that reduces inflammation in the body. Formoterol is a bronchodilator that relaxes muscles in the airways to improve breathing.
Symbicort is used to prevent bronchospasm in people with asthma or chronic obstructive pulmonary disease (COPD). For people with asthma: Symbicort is for use only if asthma is severe or is not well-controlled on other long-term asthma medicines. Your doctor may tell you to stop using this medicine once your asthma is well-controlled.