The size of the 250ug dose of salmeterol ticarcoson inhaler can be inhaled once in the morning and once in the evening by adults and children 12 years of age and older. The medication should be administered as directed by a physician. Salmeterol ticarcoson inhaler contains bronchodilator and glucocorticoid, used for the treatment of reversible airway obstructive diseases, there are various specifications, each inhalation contains 50ug salmeterol and different doses of fluticasone propionate, such as 50ug, 100ug, 250ug, of which 250ug dose of the standard dosage of the drug for 1 inhalation per inhalation, two times a day, and therefore can be inhaled in the morning and evening. However, the above dosage is suitable for adults and children over 12 years of age; this size is not recommended for children under 12 years of age. This drug may cause oropharyngeal infection, allergy, headache, hoarseness, muscle spasms and other adverse reactions, is prohibited for those who are allergic to any of the ingredients, and should be used with caution in pregnant and lactating women. The use of medication should be in accordance with the instructions of the physician, if any discomfort after the use of medication should be discontinued in a timely manner to consult a doctor.