The generic name of Symbicort is budesonide formoterol inhalation powder, which can be discontinued in as short as 8 weeks, or may need to be maintained for a long period of time, and the duration of treatment needs to be decided in the light of the specific condition. Budesonide formoterol can be used to treat cough variant asthma and other diseases, some patients respond well to treatment, the disease can be discontinued after control, but generally need to be used for a full 8 weeks; some patients with recurring symptoms may need to extend the treatment time. Bronchial asthma accompanied by symptoms such as chest tightness, inhaled budesonide treatment may be longer, generally need 1 to 2 years or more of treatment, the condition can be controlled before you can consider stopping the drug. Some bronchial asthma conditions are prolonged and may require long-term maintenance therapy. The process of budesonide formoterol inhalation powder medication may also lead to adverse reactions, such as hoarseness, oral candida infections, and even pneumonia and other complications, such as the emergence of serious complications may need to stop the medication; patients with allergies to the inhalation of this product or inhalation of lactose need to be prohibited, so the drug needs to be used under the guidance of a doctor.