Colgen Kowa Rhinitis Film Alpha
コルゲンコーワ鼻炎フィルムα
Class 2 — Available at drug stores
Drug Type
Antihistamine and decongestant combination for rhinitis (oral dissolving film)
Form
Oral Dissolving Film
Indication
Relief of symptoms caused by acute rhinitis, allergic rhinitis, or sinusitis: sneezing, runny nose, nasal congestion, watery eyes, sore throat, and head heaviness.
Active Ingredients (per film (per dose))
d-Chlorpheniramine maleate 2.0mg
Belladonna total alkaloids 0.2mg
Phenylephrine hydrochloride 6.0mg
Inactive Ingredients
Hypromellose, reduced maltose syrup, titanium oxide, l-menthol, hydroxypropylcellulose, saccharin sodium, erythritol, sodium bisulfite, fragrance, Blue No. 1
Instructions for Use
- ✓Dissolves quickly in the mouth — can be taken without water. Take at least 4 hours apart.
| Age | Dose per use | Times per day |
|---|---|---|
| Adults (15 years and older) | 1 film | 3 times daily (at least 4 hours apart) |
| Under 15 years | Do not use | — |
- ✓To take: Open the aluminum pouch from the notch and slowly peel it apart, then remove only the film. Do not swallow the film while still in the aluminum pouch — this can cause injury to the esophagus. Place the film on your tongue and let it dissolve in saliva. If it sticks to the throat, wash it down with water; if your mouth is too dry, take a sip of water first.
- ✓Stop use and consult a doctor, pharmacist, or registered salesperson, bringing this package insert with you, if symptoms do not improve after 5–6 days.
- ✕Do not operate vehicles or machinery after taking — may cause drowsiness, blurred vision, or abnormal sensitivity to light.
- ✕Do not use long-term.
- ✕Do not use in children under 15.
- ✕Do not use together with other rhinitis oral medicines, antihistamine-containing oral medicines (cold medicines, antitussives, motion sickness medicines, allergy medicines), or GI antispasmodics.
- ⚠Consult a doctor, pharmacist, or registered salesperson before use if you:
- (1) Are under medical treatment.
- (2) Are pregnant or possibly pregnant.
- (3) Are elderly.
- (4) Have had allergic reactions to medicines.
- (5) Have high fever, difficulty urinating, or dry mouth (so dry that the film won't stay on the tongue).
- (6) Have been diagnosed with glaucoma, diabetes, thyroid disorder, heart disease, or high blood pressure.
- ✓Stop use immediately and consult a doctor, pharmacist, or registered salesperson, bringing this package insert with you, if any of the following occur:
- Skin: rash, redness, itching
- GI: nausea, vomiting, loss of appetite
- CNS: headache
- Urinary: difficulty urinating
- Other: facial flushing, abnormal sensitivity to light
- ✓Seek immediate medical attention if you experience any of the following serious side effects:
- Aplastic anemia: bruising, nosebleeds, gum bleeding, fever, pale skin or mucous membranes, fatigue, palpitations, shortness of breath, dizziness, or blood in urine
- Agranulocytosis: sudden high fever, chills, sore throat
- ✓Stop use and consult a doctor, pharmacist, or registered salesperson, bringing this package insert with you, if any of the following persist or worsen: dry mouth, drowsiness, constipation, blurred vision
Sources & Documents
- Japanese product page
- Japanese PDF
- Last verified: May 27, 2026
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For informational purposes only. Always consult a doctor or pharmacist before taking any medication.