Singulair Oral Disintegrating Tablets 4 mg (Montelukast Sodium)

Adult dosage

This medication should be taken once daily; asthma patients should take it in the evening, while allergic rhinitis patients can adjust the time according to their condition. Patients with both asthma and allergic rhinitis should take one 4 mg tablet in the evening once daily. It should be administered 1 hour before meals or 2 hours after meals.

Children's dosage

Children aged 2 to 5 years should take 4 mg of montelukast once daily, placing it on the tongue to dissolve without water. It should be administered 1 hour before meals or 2 hours after meals.

This medication contains the artificial sweetener aspartame, so patients with the hereditary condition phenylketonuria should avoid taking it. The daily intake of aspartame should be maintained below the WHO recommended levels, and adults should be careful not to exceed 2.4 g per day. Due to the lactose component in this medication, patients with genetic issues such as galactose intolerance, lactase deficiency, or glucose-galactose malabsorption should not take it. Various adverse reactions have been reported in patients with asthma and allergic rhinitis, including fatigue, headache, cough, rash, and dyspepsia; if symptoms worsen, consultation with a doctor is recommended. Severe symptoms such as vasculitis or systemic eosinophilia can occur rarely, so if there are symptoms of eosinophilia or worsening pulmonary symptoms, immediate notification to a healthcare provider is necessary. This medication is not intended for use during acute asthma attacks; an emergency inhaler should be kept on hand and used during asthma exacerbations. Patients with hypersensitivity to aspirin or non-steroidal anti-inflammatory drugs should avoid these medications during treatment with this drug, and it is important to inform a doctor if any neuropsychiatric symptoms (e.g., anxiety, depression, hallucinations) occur during treatment. During pregnancy or breastfeeding, there is insufficient information regarding the safety of this medication; it should only be used if deemed necessary by a doctor. This medication is also used in pediatric patients for asthma and allergic rhinitis; however, it should not be used in infants under 6 months of age as safety and efficacy have not been established. In cases of overdose, there is no specific antidote, so general symptomatic treatment and clinical monitoring are necessary, and use should be strictly according to the doctor's directions. This medication is sensitive to light; it should be opened just before use, taken immediately after opening, and stored in a place out of reach of children.

Serious side effects

Hives, angioedema, toxic epidermal necrolysis, mucous membrane syndrome, difficulty breathing, shortness of breath, pneumonia, liver abnormal signs (increased ALT and AST, cholestatic hepatitis, hepatocellular damage, mixed liver damage), systemic eosinophilia and vasculitic rash, Churg-Strauss syndrome symptoms, severe swelling, nosebleeds, seizures, convulsions, suicidal thoughts, suicidal attempts, severe allergic reactions (anaphylaxis)

Mild side effects

• Weakness/fatigue
• fever
• abdominal pain
• trauma
• dyspepsia
• infectious gastroenteritis
• toothache
• dizziness
• headache
• nasal congestion

This medication is sensitive to air, moisture, and light, so it must be stored in a tightly sealed container. The storage temperature should be maintained at room temperature between 1 and 30 degrees Celsius. Storing it this way can help preserve the efficacy of the drug for a longer time.

Appearance

White or slightly yellow circular oral disintegrating tablet

Package unit

28 tablets (7 tablets x 4)