Informational only — Not medical advice. Always consult a licensed healthcare provider.

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Other brands with the same active ingredient

These brands contain the same active ingredient (Chlorpheniramine Maleate). Strength and form may differ — confirm substitution with your doctor or pharmacist before switching.

Available as: 5 mg/ml

Indications & Uses

Dosage Reference

Reference Information Only

Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.

Adults:

Adults: the usual dose is 4 mg every 4 to 6 hours, up to a maximum of 24 mg a day. Children aged 6 to 12 years: 2 mg every 4 to 6 hours, up to a maximum of 12 mg a day. Children aged 2 to 5 years: 1 mg every 4 to 6 hours, up to a maximum of 6 mg a day. Children aged 1 to 2 years: 1 mg twice a day. Chlorpheniramine Maleate is not recommended for children under 1 year of age.

Side Effects

Antismin is generally well tolerated. Occasionally, it may cause drowsiness, dizziness, muscle weakness, or stomach upset.

Cautions & Contraindications

Warnings & Precautions

Antismin should be used with caution in patients with glaucoma or an enlarged prostate (prostatic hypertrophy). While taking chlorpheniramine, care should be taken when driving or operating machinery.

Contraindications

Chlorpheniramine should not be used in people who are allergic to it, or in newborn or premature babies.

Drug Interactions

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Moderate Noradrenaline
Moderate Kanamycin
Moderate Adrenaline
Last updated: 15 Aug 2026