Do I need a prescription to buy Dyriton (Chlorpheniramine) 4mg/5ml Syrup?

No. Dyriton (Chlorpheniramine) 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 Dyriton (Chlorpheniramine) 4mg/5ml Syrup contain?

Dyriton (Chlorpheniramine) 4mg/5ml Syrup is a syrup containing Chlorpheniramine Maleate 4mg/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 Dyriton (Chlorpheniramine) 4mg/5ml Syrup come in?

It is supplied in a pack size of 60ml. 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 Dyriton (Chlorpheniramine) 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 Dyriton (Chlorpheniramine) 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 Dyriton (Chlorpheniramine) 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 Dyriton (Chlorpheniramine) 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 Dyriton (Chlorpheniramine) 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 Dyriton (Chlorpheniramine) 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.

Dyriton (Chlorpheniramine) 4mg/5ml Syrup | chlorpheniramine | allergy cold antihistamine syrup | DoctorOnCall Malaysia

Dyriton (Chlorpheniramine) 4mg/5ml Syrup

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Dyriton (Chlorpheniramine) 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 19, 2026

Overview

Dyriton (Chlorpheniramine) 4mg/5ml Syrup contains Chlorpheniramine Maleate 4mg/5ml and is presented as a syrup. It is supplied in a pack size of 60ml.

It is classified as a non-prescription medicine, so no prescription is needed to order it. Under Malaysian rules for medicine information, this page carries product, safety and handling information only.

You can consult a doctor or pharmacist online on DoctorOnCall about this product before or after you order. Every order is checked by a registered pharmacist before it is delivered. Always read the label and the leaflet supplied with the pack.

Directions for Use

Shake the bottle well before use and measure the dose using the measuring cup or spoon provided, never a household spoon. Give the syrup orally, with or without food, following the age-appropriate dose and frequency stated on the product label, and do not exceed the recommended dose within 24 hours.

Dosage

Dosing is based on age: adults and children over 12 years typically take 5 to 10ml every 4 to 6 hours as needed, while children aged 6 to 12 years usually take a lower dose as stated on the label. Use in children under 6 years should only be under the guidance of a doctor or pharmacist, and the total daily dose should not be exceeded.

Shelf Life

Dyriton (Chlorpheniramine) 4mg/5ml Syrup is generally stable for up to 24 months from the date of manufacture when unopened and stored correctly. Check the expiry date on the bottle or carton before each use, and follow the label’s guidance on how long to use the syrup after opening.

Storage Instructions

Store Dyriton (Chlorpheniramine) 4mg/5ml Syrup at room temperature, away from direct sunlight and excessive heat. Keep the bottle upright and tightly closed, do not freeze, and keep out of reach of children.

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 other antihistamines
Newborn or premature infants
Narrow-angle glaucoma
Severe hypertension or cardiovascular disease
Use of monoamine oxidase inhibitors (MAOIs) within the past 14 days
Urinary retention or significant prostatic enlargement, unless advised by a doctor

Drug / Food Interactions

Increased sedation when taken with alcohol or other sedating medicines
Additive anticholinergic effects with other antihistamines or anticholinergic drugs
MAOIs may intensify and prolong the anticholinergic effects of chlorpheniramine
Avoid alcohol while taking this syrup

Quick Tips

Use the measuring cup or spoon provided, not a household spoon, for accurate dosing
Shake the bottle well before each use
May cause drowsiness — avoid driving or operating machinery until you know how it affects you
Avoid alcohol while using this medicine
Consult a doctor if symptoms persist beyond 7 days or worsen

Ingredients / Active Ingredients

Chlorpheniramine Maleate

Chlorpheniramine Maleate 4mg/5ml

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

Chlorpheniramine is an older-generation antihistamine that is more likely to cause drowsiness compared with newer, non-sedating antihistamines, so it should be used with caution in the elderly and in those who need to remain alert. It should be used for the shortest period needed to control symptoms, and medical advice should be sought if allergy symptoms are severe or recurrent.