
Cerunix Ear Drops 10ML
Silom - Drop - 10 ml - 10 ml
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Phenylephrine (5mg) + Chlorpheniramine Maleate (2mcg) + Dextromethorphan Hydrobromide (10mg)
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Cofdoff Syrup is used for symptomatic relief of cough and cold (dry or productive), throat irritation, chest congestion (depending on formulation).
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated September 2026
Cofdoff Syrup contains Phenylephrine (5mg) + Chlorpheniramine Maleate (2mcg) + Dextromethorphan Hydrobromide (10mg). It belongs to the Antitussive/Expectorant/Antihistamine combination (varies by formulation) class of medicines.
Cough syrups usually combine one or more agents such as an antitussive to suppress cough, an expectorant/mucolytic to loosen mucus, and an antihistamine/decongestant to reduce allergy symptoms and nasal congestion. The exact mechanism depends on the active ingredients in the specific COFDOFF Syrup formulation.
Shake well before use. Measure dose with a calibrated cup/spoon and take as advised by a doctor. Can be taken with or without food; take after food if stomach upset occurs. Do not exceed recommended dose and avoid using multiple cough/cold products together unless advised.
Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.
Take it as soon as you remember. If your next dose is almost due, skip the one you missed — never take two doses together to catch up.
An overdose of this medicine can cause vomiting, severe drowsiness, a racing heart and, with codeine, dangerously slow breathing. It can cause severe drowsiness, a fast heartbeat, confusion and, in children, agitation and fits. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.
Most side effects of Cofdoff are mild and settle as the body adjusts. Reported side effects include:
Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.
| Pregnancy | Consult doctor |
|---|---|
| Breastfeeding | Consult your doctor before using this while breastfeeding. |
| Alcohol | Avoid |
| Driving | May cause drowsiness or affect your concentration. Do not drive until you know how it affects you. |
| Kidney | Use with caution if you have kidney disease — your doctor may adjust the dose or monitor your kidney function. |
| Liver | Use with caution if you have liver disease — your doctor may adjust the dose or monitor your liver function. |
| Habit forming | No |
Exact warnings depend on ingredients. Many cough syrups can cause drowsiness—avoid driving/operating machinery if affected. Use with caution in children, elderly, pregnancy/breastfeeding, asthma/COPD, liver or kidney disease, thyroid disease, hypertension, glaucoma, enlarged prostate, and in patients taking sedatives. Do not use for prolonged cough (>7 days), recurrent fever, or cough with blood/shortness of breath; seek medical advice. Do not exceed dose; keep out of reach of children.
Not for anyone with a known allergy to this medicine or to any ingredient in the pack. Codeine-containing preparations are not for children, or for anyone with breathing difficulty. The sedating antihistamines are not suitable for very young children, or for people with glaucoma or an enlarged prostate, without medical advice.
Alcohol and other CNS depressants (increased sedation), MAO inhibitors/antidepressants (some antihistamines/decongestants), antihypertensives (decongestants may raise BP), other cough/cold products containing similar ingredients (risk of overdose).
Store at room temperature (below 25°C), protected from light and moisture. Keep bottle tightly closed. Do not freeze.
Drink plenty of water — it thins mucus better than any syrup. Steam inhalation helps congestion and costs nothing. Measure the dose with the cup supplied. Taking it at bedtime reduces the impact of any drowsiness. Identify and avoid your triggers where you can — dust, pollen, cold air.

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The information on Cofdoff Syrup is compiled from the manufacturer's prescribing information and the sources below, and is reviewed by a registered medical practitioner. It does not replace advice from your own doctor.