Singkast Granules 4 mg (Montelukast Sodium)

Adult dose

This 4 mg granule formulation can be taken directly by mouth or mixed with a small amount (about 5 mL) of soft food such as baby food, breast milk, or porridge at room temperature. The packaging must not be opened until right before administration, and after opening, it should be mixed with or taken entirely within 15 minutes. This medication can be taken regardless of meal times.

Child dose

Children aged 2 to 5 years: Montelukast 4 mg orally once daily. Infants aged 12 months to under 2 years: This medication 4 mg orally at bedtime once daily. Infants aged 6 months to under 2 years: This...

This medication is used to treat respiratory diseases such as asthma and allergic rhinitis. Side effects related to the nervous system, such as restlessness, anxiety, depression, hallucinations, and suicidal thoughts may occur during treatment, so patients and caregivers should carefully observe these changes. If any new neurological or psychiatric symptoms or behavioral changes appear, consult a doctor immediately. Patients with hypersensitivity to this medication or its components should not take it. Side effects such as fatigue, headache, dyspepsia, fever, cough, and rash may occur, and while safety has been confirmed in children and elderly patients, caution is required. This medication is not used to treat acute asthma attacks; therefore, emergency medication should always be carried and used in case of acute symptoms. The dosage of inhaled corticosteroids should not be suddenly reduced or substituted, and it should not be used alone for exercise-induced bronchospasm treatment. Patients with aspirin hypersensitivity should avoid taking aspirin or NSAIDs while using this medication. Rarely, severe side effects such as systemic eosinophilia and vasculitis may occur, requiring medical observation. While drug interactions are uncommon, clinical monitoring is recommended when taken with specific medications. Pregnant or breastfeeding women should use this medication only when absolutely necessary, as safety data is limited and caution is advised. Safety and efficacy for pediatric patients have been confirmed depending on age, but safety has not been established for infants under 6 months. No specific antidote exists for overdose; general supportive care and clinical monitoring are needed. This medication is sensitive to light, so it should be opened just before ingestion and stored out of reach of children. During treatment, do not suddenly discontinue or reduce the dosage of other asthma medications without a doctor’s guidance, and consult a doctor immediately if symptoms worsen.

Serious side effects

Hives, Severe Swelling (Edema), Angioedema, Chest Tightness, Difficulty Breathing, Cold Sweat, Pallor, Toxic Epidermal Necrolysis, Stevens-Johnson Syndrome, Severe Rash with High Fever, Blisters, Skin Peeling, Mouth/Eye Mucosal Pain, Shortness of Breath or Breathing Difficulty, Asthma Attack, Respiratory Abnormalities with Cough and Fever, Yellowing of Skin or Eyes (Jaundice), Severe Systemic Lethargy, Sudden and Severe Headache, Lightning.

Mild side effects

• Weakness/Fatigue
• Fever
• Abdominal Pain
• Dyspepsia
• Infectious Gastroenteritis
• Toothache
• Dizziness
• Headache
• Nasal Congestion
• Cough

This medication is sensitive to moisture and light; thus, it should be stored in a dry place protected from light. Additionally, it must be kept at room temperature between 1°C and 30°C and stored in a tightly sealed container to prevent air from entering.

Appearance

White homogeneous granules without foreign substances

Package unit

28 packets (0.5g/packet × 28)