Dexfen Syrup
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Overview
Dexfen Syrup contains Dextromethorphan and is presented as a syrup. It is supplied in pack sizes of 120ml and 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
Dexfen Syrup should be taken by mouth using the measuring cup or spoon provided, at the dose and frequency stated on the label or as advised by a pharmacist or doctor, and should not be combined with other cough, cold, or antihistamine products without checking first to avoid duplicating ingredients.
Dosage
Dosage depends on the age of the person being treated and should follow the product label or a pharmacist’s or doctor’s advice; it should not be given to very young children without specific medical guidance, and the maximum daily dose stated on the packaging should not be exceeded.
Shelf Life
Use within the period stated on the packaging and do not use after the expiry date printed on the bottle or carton.
Storage Instructions
Store below 30 degrees Celsius in a cool, dry place away from direct sunlight, keep the bottle tightly closed, and keep out of reach of children.
Side Effects
- Drowsiness or sedation
- Dizziness
- Dry mouth, nose, or throat
- Nausea or stomach upset
- Blurred vision
- Difficulty urinating in some individuals
- Rarely, allergic skin reactions such as rash
Contraindications
- Known hypersensitivity to dextromethorphan, dexchlorpheniramine, or any other ingredient in the syrup
- Current use of, or recent use within two weeks of, monoamine oxidase inhibitor (MAOI) medicines
- Severe liver impairment
- Narrow-angle glaucoma or severe difficulty passing urine, due to the antihistamine component
- Not recommended for young children without medical advice
Drug / Food Interactions
- Monoamine oxidase inhibitors (MAOIs), which can cause a dangerous interaction with dextromethorphan
- Other sedating antihistamines, sleep aids, or sedatives, which can add to drowsiness
- Alcohol, which increases sedation and dizziness
- Other cough, cold, or allergy products containing similar ingredients, which can lead to accidental overdose if combined
Quick Tips
- Avoid driving or operating machinery until you know how this syrup affects you, as it may cause drowsiness
- Do not combine with alcohol or other sedating medicines
- Check other cough and cold products you are taking to avoid duplicating dextromethorphan or antihistamine ingredients
- See a doctor if the cough persists beyond seven days, is accompanied by fever, or brings up thick or discoloured mucus
- Use the measuring device provided rather than a household spoon for accurate dosing
Frequently Asked Questions
Do I need a prescription to buy Dexfen Syrup?
No. Dexfen 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 Dexfen Syrup contain?
Dexfen Syrup is a syrup containing Dextromethorphan. The full ingredient list is shown in the Composition or Ingredients section on this page and on the product packaging.
What pack sizes does Dexfen Syrup come in?
It is supplied in pack sizes of 120ml and 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 Dexfen 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 Dexfen 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 Dexfen 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.
How should I store Dexfen Syrup?
Store below 30 degrees Celsius in a cool, dry place away from direct sunlight, keep the bottle tightly closed, and keep out of reach of children. Keep it in its original pack and do not use it after the expiry date printed on the packaging.
What should I do if I notice side effects after using Dexfen 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 Dexfen 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 Dexfen 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.
Ingredients / Active Ingredients
- Dextromethorphan
- Dexchlorpheniramine maleate
- Syrup base excipients
Safety Advice
Pregnancy
This medicine should only be used during pregnancy if prescribed by a doctor after careful evaluation.
Breastfeeding
Limited data on excretion in breast milk. Consult a doctor before use.
Kidney
Generally safe, but caution may be required in some patients.
Liver
No adequate data available. Consult a doctor before use.
Alcohol
It is not advisable to consume alcohol while taking this medicine.
Driving
It is not advisable to drive if you experience side effects from this medicine.
Relevant Information
Dexfen Syrup combines dextromethorphan and dexchlorpheniramine maleate for symptomatic relief of dry cough with accompanying cold or allergy symptoms, and is best used for short courses; a cough that lasts longer than a week, worsens, or is accompanied by breathing difficulty, high fever, or chest pain should be assessed by a doctor rather than continuing self-treatment.
