Do I need a prescription to buy Duopharma Chloramine 4mg/5ml Syrup?

No. Duopharma Chloramine 4mg/5ml Syrup is a non-prescription product and can be ordered without a prescription. It is still dispensed by a registered pharmacist on DoctorOnCall.

What does Duopharma Chloramine 4mg/5ml Syrup contain?

Duopharma Chloramine 4mg/5ml Syrup is a syrup containing Chlorpheniramine Maleate 4mg per 5ml. The full ingredient list is shown in the Composition or Ingredients section on this page and on the product packaging.

What pack sizes does Duopharma Chloramine 4mg/5ml Syrup come in?

It is supplied in a pack size of 90ml. Choose the pack size you need from the options shown on this page before adding the item to your cart.

Why is there no information here about what Duopharma Chloramine 4mg/5ml Syrup is for?

This page is limited to product, safety and handling information in line with Malaysian rules on medicine information. If you want advice on whether this product suits you, book an online consultation with a doctor or pharmacist on DoctorOnCall.

How should I use Duopharma Chloramine 4mg/5ml Syrup?

Follow the instructions printed on the label and in the leaflet supplied with the pack, and do not exceed the stated amount or duration. Handling steps are set out in the Directions for Use section on this page.

Can I speak to a doctor or pharmacist about Duopharma Chloramine 4mg/5ml Syrup before I buy it?

Yes. DoctorOnCall offers online consultations with licensed doctors and registered pharmacists, so you can ask about this product, your existing medicines, or anything on the label before you place an order.

What should I do if I notice side effects after using Duopharma Chloramine 4mg/5ml Syrup?

Stop using the product and speak to a doctor or pharmacist about any reaction that concerns you. Seek medical care immediately for signs of a severe reaction such as difficulty breathing, swelling of the face, lips or throat, or a widespread rash. Reported reactions are listed in the Side Effects section on this page.

How long will delivery take?

Within Malaysia, standard delivery takes 3 to 5 working days. Same-day delivery is available in the Klang Valley for orders placed before 12pm; orders placed after 12pm arrive by the end of the next day. Orders to Singapore are sent as international deliveries and take 5 to 9 working days. A lump-sum shipping and handling fee applies to every overseas delivery and is shown at checkout.

What payment methods can I use?

Customers in Malaysia can pay by FPX online banking, credit or debit card (Visa and Mastercard), and supported e-wallets including Touch ‘n Go eWallet, GrabPay and ShopeePay. FPX and local e-wallets are tied to Malaysian bank and wallet accounts, so if your delivery address is in Singapore, use the payment options displayed at checkout for that address rather than assuming the same list applies.

Can Duopharma Chloramine 4mg/5ml Syrup be delivered to Singapore?

Yes. DoctorOnCall ships to Singapore as an international order dispatched from Malaysia, arriving in 5 to 9 working days with a lump-sum shipping and handling fee. Singapore’s Health Sciences Authority (HSA) allows personal imports of up to three months’ supply of a medicine for your own use or an immediate family member’s, as long as it contains no controlled drugs, psychotropic substances or prohibited items. Keep the product in its original labelled packaging and keep a copy of your prescription or doctor’s letter with it. Quantities above three months’ supply, and medicines containing controlled substances, require prior HSA approval.

Is Duopharma Chloramine 4mg/5ml Syrup registered with the authorities?

Products listed on DoctorOnCall are registered with Malaysia’s Ministry of Health for supply in Malaysia, and each pack carries its MAL registration number. An order delivered to Singapore arrives as a personal import of a Malaysia-registered product; HSA product registration is not required for personal-use quantities, but it is also not the same as a product registered for sale in Singapore. If you need a locally registered Singapore product, buy it from a pharmacy in Singapore.

Who do I contact if there is a problem with my order?

DoctorOnCall’s customer care team handles order, delivery and product queries through the contact channels on the site, including WhatsApp and the online help centre. For deliveries to Singapore, allow more time before chasing an order than you would for a local Malaysian delivery, as the parcel passes through customs clearance and tracking updates can appear later in the journey.

Duopharma Chloramine 4mg/5ml Chlorpheniramine Syrup - Allergy & Cold Relief Malaysia

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Duopharma Chloramine 4mg/5ml Syrup

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Reviewed byDr. Mohd Izzat Amir Bin AwangDoctor of Medicine (MD), University of Mansoura - Manchester

Written byDr. Adeline Carol PetersBachelor of Medicine and Bachelor of Surgery (MBBS) — Manipal Academy of Higher Education (MAHE)

Last updated: October 18, 2026

Overview

Duopharma Chloramine 4mg/5ml Syrup is a syrup with Chlorpheniramine Maleate 4mg per 5ml declared as its active content. It is supplied in a pack size of 90ml.

This is a non-prescription product and can be purchased without a prescription. Only product, safety and handling details are published on this page.

An online consultation with a DoctorOnCall doctor or pharmacist is available for this product, and a registered pharmacist reviews each order before dispatch to Malaysia or Singapore. Follow the directions on the label and on the leaflet inside the pack.

Directions for Use

Shake the bottle well before use. Measure the dose using the measuring cup or spoon provided with the product rather than a household spoon, to ensure accurate dosing. Take the syrup orally, with or without food, as directed on the product label or by a doctor or pharmacist. Follow the age-appropriate dosing instructions on the packaging carefully, especially for children, and do not exceed the recommended dose or frequency.

Dosage

Dosage of Duopharma Chloramine 4mg/5ml Syrup varies according to age and should follow the instructions on the product packaging or a healthcare professional’s advice. As a general guide for chlorpheniramine syrup, adults typically take 5-10ml (4-8mg) every 4 to 6 hours as needed, while children’s doses are lower and age-adjusted; the total daily dose should not exceed the maximum stated on the label. Always use the specific dosing guidance provided with this product, particularly for young children, and consult a doctor or pharmacist if unsure.

Shelf Life

Duopharma Chloramine 4mg/5ml Syrup should be used within the shelf-life period printed on the bottle or carton, and discarded after the stated expiry date. Once opened, check the product label for any specific in-use shelf-life guidance, and discard the syrup if it develops an unusual odour, colour change, or cloudiness.

Storage Instructions

Store Duopharma Chloramine 4mg/5ml Syrup at room temperature, away from direct sunlight, heat, and moisture. Keep the bottle tightly closed after each use and store it out of the reach and sight of children. Do not store in the refrigerator unless specifically instructed on the product label.

Side Effects

Drowsiness or fatigue
Dry mouth, nose, or throat
Dizziness
Nausea or upset stomach
Headache
Restlessness (especially in children)
Blurred vision

Contraindications

Known hypersensitivity to chlorpheniramine or any other ingredient in this syrup
Newborn or premature infants
Severe liver disease
Narrow-angle glaucoma
Severe urinary retention or bladder outlet obstruction
During an acute asthma attack
Use with caution in the elderly due to increased sensitivity to sedating and anticholinergic effects

Drug / Food Interactions

Increased drowsiness when taken with alcohol or other sedating medicines such as sleeping pills or tranquilisers
May increase sedative effects when combined with other antihistamines, opioid painkillers, or muscle relaxants
Should not be combined with monoamine oxidase inhibitor (MAOI) antidepressants
May enhance the anticholinergic effects of other medicines, such as certain antidepressants or medicines for overactive bladder
Caution when combined with other drowsiness-causing medicines, including some cough and cold preparations

Quick Tips

Avoid driving or operating heavy machinery until you know how this syrup affects you, as it commonly causes drowsiness
Use the measuring device provided with the product for accurate dosing, especially in children
Avoid alcohol while taking this medicine to reduce excessive sedation
Take with food if stomach upset occurs
Do not give to infants without specific medical advice

Ingredients / Active Ingredients

Chlorpheniramine Maleate

Chlorpheniramine Maleate 4mg per 5ml
Other non-active excipients as listed on the product packaging

Safety Advice

Pregnancy

Safe If Prescribed

This medicine should only be used during pregnancy if prescribed by a doctor after careful evaluation.

Breastfeeding

Use With Care

Use with caution. Monitor infant for potential adverse reactions.

Kidney

Use With Care

Use cautiously. Dose adjustment or monitoring may be required.

Liver

Use With Care

Use cautiously. Liver function monitoring may be required.

Alcohol

Use With Care

Caution is advised when consuming alcohol with this medicine.

Driving

Use With Care

Use caution while driving until you know how this medicine affects you.

Relevant Information

Duopharma Chloramine 4mg/5ml Syrup is commonly used as a short-term, symptomatic treatment for allergic symptoms and is not intended to treat the underlying cause of an allergy. If allergy symptoms persist for more than a few days, are severe, or are accompanied by breathing difficulty, swelling of the face or throat, or signs of a severe allergic reaction, medical attention should be sought promptly rather than continuing self-treatment with this syrup.