Salmeterol is salmeterol ticarcoson powder inhaler, the correct name of Cymbicort is Cymbicort dubao, generic name budesonide formoterol powder inhaler, both contain anti-inflammatory activity of glucocorticosteroids, and long-acting β2 agonists, both have a dual role of anti-inflammatory and diastolic bronchial effect, and there is no which one is more effective, it is necessary to look at the patient which is more suitable for which kind of drug. Salmeterol ticarcoson powder inhaler contains both salmeterol and fluticasone propionate formulations. Budesonide formoterol powder inhaler contains both budesonide and formoterol. Both drugs have pharmacological effects common to glucocorticoids and long-acting β2 agonists, which not only have bronchodilating properties, but also act on inflammatory factors to reduce the inflammatory response and synergize for better improvement of respiratory function, and are suitable for routine use in asthmatics who need to use inhaled glucocorticoids and long-acting β2 agonists in combination. Adverse effects of salmeterol ticarcoson powder inhaler may include hypokalemia, tremor, palpitations, headache, etc. In addition, cardiac arrhythmia, hyperthyroidism, hypertension, diabetes mellitus, etc. should be used with caution. It is prohibited for those who have allergic reaction to the drug. This product contains lactose, it is prohibited for those who are allergic to lactose or milk. Budesonide formoterol powder inhaler is not suitable for patients with severe asthma, adverse reactions may include headache, tremor, palpitations, respiratory infections, and occasionally depression, angina pectoris, abnormal blood pressure. It is contraindicated for those who have an allergic reaction to the drug. It is recommended to choose the use of drugs under the guidance of a doctor to avoid adverse consequences.