Allegra FX Junior
アレグラFXジュニア
Class 2 — Available at drug stores
Drug Type
Antihistamine for allergic rhinitis (fexofenadine)
Form
Tablets
Indication
Relief of nasal allergy symptoms caused by pollen, house dust, and other allergens: sneezing, runny nose, and nasal congestion. For children aged 7–14 years.
Active Ingredients
Fexofenadine hydrochloride 60mg (per 2-tablet daily dose) / 120mg (per 4-tablet daily dose)
Inactive Ingredients
Microcrystalline cellulose, partially pregelatinized starch, croscarmellose sodium, magnesium stearate, light anhydrous silicic acid, hypromellose, povidone, titanium oxide, macrogol 400, iron sesquioxide, yellow iron sesquioxide
Instructions for Use
- ✓Take morning and evening (twice daily). Can be taken on an empty stomach.
| Age | Dose per use | Times per day |
|---|---|---|
| Children 7–11 years | 1 tablet | Twice daily (morning and evening) |
| Children 12–14 years | 2 tablets | Twice daily (morning and evening) |
| Under 7 years | Do not use | — |
- ✓Children should take under adult supervision.
- ✓For seasonal allergies, start taking from the predicted pollen dispersal date, or as soon as symptoms appear.
- ✓Stop use and consult a doctor, pharmacist, or registered salesperson if symptoms do not improve after 3–4 days, or if taking for more than 2 weeks.
- ✓To remove tablets: press firmly on the raised side of the blister pack to break the foil backing and pop the tablet out. Do not swallow the tablet while still in the sheet — this can cause injury to the esophagus.
- ✕Do not drink alcohol before or after taking.
- ✕Do not use if breastfeeding, or stop breastfeeding if you take this medicine (animal studies have shown transfer into breast milk).
- ✕Do not use if the child has had an allergic reaction to this product or any of its ingredients.
- ✕Do not use in children under 7 years of age.
- ✕Do not use together with other allergy medicines (including skin condition medicines and rhinitis oral medicines), antihistamine-containing oral medicines (cold medicines, antitussives, motion sickness medicines, sleep aids), antacids containing aluminum hydroxide or magnesium hydroxide, erythromycin (antibiotic), or apalutamide (prostate cancer treatment).
- ⚠Consult a doctor, pharmacist, or registered salesperson before use if:
- (1) The child is under medical treatment.
- (2) It is unclear whether symptoms are due to allergic rhinitis or another cause such as a cold.
- (3) The child has been diagnosed with asthma, atopic dermatitis, or other allergic conditions.
- (4) Nasal congestion is severe.
- (5) The user is pregnant or possibly pregnant.
- (6) The user is elderly.
- (7) The user has had allergic reactions to medicines.
- ✓Stop use immediately and consult a doctor if any of the following occur:
- Skin: swelling of throat, eyelids, or lips; rash, itching, hives, redness
- GI: nausea, vomiting, abdominal pain, indigestion
- CNS: numbness, headache, fatigue, malaise, dizziness, insomnia, nervousness, abnormal dreams, sleep disturbance
- Urinary: frequent urination, difficulty urinating
- Other: palpitations, taste disturbance, swelling, chest pain, difficulty breathing, high blood pressure, menstrual irregularity
- ✓Seek immediate medical attention if you experience any of the following serious side effects:
- Anaphylactic shock: sudden itching, hives, hoarseness, sneezing, throat itching, difficulty breathing, palpitations, or loss of consciousness shortly after taking
- Liver dysfunction: fever, itching, rash, jaundice (yellowing of skin or eyes), dark urine, general malaise, loss of appetite
- Agranulocytosis / leukopenia / neutropenia: sudden high fever, chills, sore throat
- ✓Monitor and consult if persistent: dry mouth, constipation, diarrhea, drowsiness.
Sources & Documents
- Japanese product page
- Japanese PDF
- Suitability Checklist
- Note: For your child's safety, please check the Suitability Checklist before purchasing.
- Last verified: May 27, 2026
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For informational purposes only. Always consult a doctor or pharmacist before taking any medication.