Singulair Chewable Tablets 4 mg (Montelukast Sodium)

Adult dose

This medication should be taken once daily. For asthma patients, it should be taken in the evening, and for allergic rhinitis patients, the dosing time should be determined by the patient's condition. Patients with both asthma and allergic rhinitis should take 1 tablet in the evening once daily. This medication should be administered 1 hour before or 2 hours after a meal.

Child dose

For children aged 2 to 5 years, montelukast should be taken as 4 mg once daily, chewed. This medication should be administered 1 hour before or 2 hours after a meal.

This medication contains the artificial sweetener aspartame and should not be used by patients with phenylketonuria, a genetic disorder that restricts phenylalanine intake. It is important to keep the intake of aspartame included in this medication below the WHO recommended amount, and for a 60 kg adult, it should not exceed 2.4g per day. Patients with allergies to this medication or its ingredients, as well as those with lactose intolerance or hereditary lactose malabsorption disorders, should not take this medication. This medication is not used to treat acute asthma attacks; therefore, appropriate emergency medication should be used in the event of acute symptoms. Asthma patients should always have a fast-acting inhaler available to use during acute exacerbations while taking this medication. Do not suddenly stop or switch inhaled corticosteroid preparations; they should be adjusted gradually according to the physician's instructions. While taking this medication, various side effects such as dizziness, headache, abdominal pain, and rash may occur; consult a doctor if such symptoms arise. Particularly rare but serious side effects like systemic eosinophilia or vasculitis may occur, so report any signs of eosinophilia or vasculitis to medical personnel immediately. Patients with hypersensitivity to aspirin or non-steroidal anti-inflammatory drugs should avoid using these medications during treatment with this drug. The safety of this medication during pregnancy has not been fully established; thus, it should only be taken after consulting a doctor in necessary situations. Caution is also needed as this medication may be excreted in breast milk during nursing. It can be used in children and elderly patients, but appropriate dosages and precautions should be followed according to age, and its safety has not been confirmed in infants under 6 months of age. In cases of overdose, there are no specific antidotes, and general supportive treatment should be provided following a physician's instructions. This medication is sensitive to light, so it should be opened right before use and taken immediately after opening; store it in a container that is well sealed and out of reach of children. If asthma symptoms worsen or the use of a fast-acting inhaler increases while taking this medication, a doctor's examination should be obtained, and the doses of other asthma medications should not be arbitrarily reduced or stopped. Patients or guardians should immediately inform medical personnel if neuropsychiatric symptoms arise while taking this medication.

Serious side effects

• Urticaria
• angioedema
• toxic epidermal necrolysis
• Stevens-Johnson syndrome
• respiratory distress
• asthma attack
• difficulty breathing
• jaundice of skin or eyes
• sudden and severe headache
• thunderclap headache

Mild side effects

• Asthenia
• fatigue
• fever
• abdominal pain
• trauma
• dyspepsia
• infectious gastroenteritis
• toothache
• dizziness
• headache

This medication is sensitive to moisture and light, so it should be stored at room temperature between 1°C and 30°C. Additionally, it is important to store it in a sealed container to prevent air exposure.

Appearance

Pink, biconvex oval chewable tablet

Package unit

28 tablets/box [(7 tablets/PTP x 4)]