The dosage forms of montelukast sodium include montelukast sodium tablets, montelukast sodium granules, montelukast sodium chewable tablets, etc. The recommended dosage of different dosage forms is different. Patients are advised to use the medication according to their own conditions and under the guidance of the doctor. Regular dosage of montelukast sodium tablets: 10mg once daily for patients aged 15 years and above. Regular dosage of Montelukast Sodium Granules: one sachet once daily for children aged 1 to 2 years with asthma. one sachet daily for children aged 2 to 5 years with asthma and/or patients aged 2 to 5 years with allergic rhinitis. Regular dose of montelukast sodium chewable tablets: 5 mg once daily for pediatric patients with asthma and/or allergic rhinitis aged 6 to 14 years. 4 mg once daily for pediatric patients with asthma and/or allergic rhinitis aged 2 to 5 years. Dosing time: Asthma patients should take it at bedtime; Allergic rhinitis patients can take it when needed according to their own disease; Patients with both asthma and seasonal allergic rhinitis should take it once a night. The above is the recommended dosage, if you need to use montelukast sodium, please consult a professional doctor, follow the doctor’s instructions to standardize the use of medication.