Chlorpheniramine Tablet 4mg - 1 TAB
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Overview
Chlorpheniramine 4mg is a first-generation antihistamine commonly used in veterinary medicine to manage allergic reactions and mild sedation in dogs and cats. It works by blocking histamine H₁ receptors, helping to relieve symptoms such as itching, sneezing, and hives. Chlorpheniramine is suitable for pets experiencing seasonal allergies, insect bites, vaccine reactions, or mild anxiety, and is often used off-label under veterinary supervision.
✅ Key Benefits / Features
- Provides effective relief from allergy symptoms including itching, swelling, and sneezing
- Useful in managing skin conditions like atopic dermatitis and miliary dermatitis
- Can be used as a mild sedative for anxious pets
- May help reduce reactions to vaccines, insect bites, or transfusions
- Fast-acting with effects typically seen within 30–60 minutes
- Affordable and widely available antihistamine option
🧪 Ingredients
- Active Ingredient: Chlorpheniramine Maleate – 4mg per tablet
-
Inactive Ingredients (may vary by manufacturer):
- Microcrystalline cellulose
- Lactose monohydrate
- Magnesium stearate
- Corn starch
- Stearic acid
📊 Nutritional Composition / Active Ingredients
| Component | Quantity per Tablet |
|---|---|
| Chlorpheniramine Maleate | 4 mg |
💊 Uses / Indications
-
Dogs and Cats:
- Allergic skin reactions (e.g., atopic dermatitis, insect bites)
- Urticaria (hives)
- Vaccine or transfusion reactions
- Mild cough or upper respiratory irritation
- Motion sickness or mild anxiety
- Adjunctive therapy for mast cell tumors (histamine control)
🐾 Feeding Instructions / Dosage
-
Dogs:
- 0.1–0.5 mg/kg orally every 8–12 hours
-
Cats:
- 2–4 mg orally every 8–12 hours
-
Administration:
- Can be given with or without food
- Bitter taste may make administration difficult in cats—consider compounding or hiding in treats
- Always follow veterinary guidance for dosing and duration
⚠️ Possible Side Effects
-
Common:
- Drowsiness or mild sedation
- Dry mouth
- Decreased urination
-
Less common:
- Vomiting or diarrhea
- Reduced appetite
- Cats may show paradoxical excitement or agitation
🔄 Drug & Food Interactions
-
May interact with:
- CNS depressants (e.g., acepromazine, opioids)
- Monoamine oxidase inhibitors (MAOIs)
- Phenothiazines
- Avoid human formulations containing decongestants or caffeine
- Stop use at least 2 weeks before allergy testing
⚠️ Precautions
-
Not recommended for:
- Pets with glaucoma, urinary or GI obstruction, hypertension, heart disease, hyperthyroidism, or enlarged prostate
- Use with caution in elderly or debilitated animals
- Monitor for sedation level, appetite changes, and urinary habits
- Store in a cool, dry place and keep out of reach of children