Do I need a prescription to buy Zynaten 1mg/5ml Syrup?

No. Zynaten 1mg/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 Zynaten 1mg/5ml Syrup contain?

Zynaten 1mg/5ml Syrup is a syrup containing Ketotifen fumarate, equivalent to ketotifen 1mg per 5ml of syrup. The full ingredient list is shown in the Composition or Ingredients section on this page and on the product packaging.

What pack sizes does Zynaten 1mg/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 Zynaten 1mg/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 Zynaten 1mg/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 Zynaten 1mg/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 Zynaten 1mg/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 Zynaten 1mg/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 Zynaten 1mg/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.

Zynaten 1mg/5ml Syrup ketotifen antihistamine syrup for allergic asthma in children | DoctorOnCall Malaysia

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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 31, 2026

Overview

Zynaten 1mg/5ml Syrup contains Ketotifen fumarate, equivalent to ketotifen 1mg per 5ml of syrup 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

Zynaten Syrup is taken by mouth, usually twice daily (morning and evening) with food to help reduce stomach upset, using the measuring cup or spoon provided with the pack rather than a household spoon. Shake the bottle well before each use and take the dose at around the same times each day for the best preventive effect; if the syrup is being used for allergic asthma or bronchitis prevention, it should be taken regularly and not only when symptoms flare up.

Dosage

Dosing is based on age and should follow the product label or your pharmacist’s advice: children aged 6 months to 3 years are typically given a lower dose (around 2.5ml) twice daily, while children over 3 years and adults are typically given 5ml (ketotifen 1mg) twice daily. Do not increase the dose or frequency on your own, and speak to a pharmacist or doctor before giving Zynaten to infants under 6 months.

Storage Instructions

Store below 30°C in a cool, dry place away from direct sunlight, keep the bottle tightly closed between uses, and store out of the sight and reach of children.

Side Effects

Shakiness or tremors
Headache
Increased heart rate
Nervousness or restlessness
Muscle cramps
Dry mouth or throat irritation

Contraindications

Known hypersensitivity or allergy to ketotifen fumarate or any other ingredient in the syrup
Infants under 6 months of age, unless specifically advised by a doctor

Drug / Food Interactions

Alcohol and other sedating medicines (e.g. other antihistamines, sleeping tablets, sedatives) — combined use may increase drowsiness
Oral antidiabetic medicines — rare reports of reduced platelet counts when combined with ketotifen; monitor as advised by your doctor or pharmacist
Central nervous system depressants generally — increased sedative effect possible

Quick Tips

Take Zynaten Syrup regularly at the same times each day if it is being used to help prevent allergic asthma or bronchitis flares — it is not a fast-acting rescue medicine
Shake the bottle well and use the measuring device provided for an accurate dose
Be cautious with driving or operating machinery until you know how the syrup affects your alertness
Avoid alcohol while taking this medicine
Keep taking the course as advised even if symptoms improve, unless your doctor or pharmacist tells you otherwise
Seek medical advice if allergy symptoms or wheezing do not improve, or if you notice unusual bruising

Ingredients / Active Ingredients

Salbutamol

Active ingredient: Ketotifen fumarate, equivalent to ketotifen 1mg per 5ml of syrup
Dosage form: oral syrup
Drug class: antihistamine with mast-cell stabilising activity
Other (inactive) ingredients are not fully disclosed on the public label; check the package insert or ask your pharmacist if you have specific excipient allergies
Manufactured under Good Manufacturing Practice (GMP) pharmaceutical standards

Safety Advice

Pregnancy

Safe If Prescribed

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

Breastfeeding

Generally Safe

This medicine is generally safe during breastfeeding with minimal risk to the infant.

Kidney

Generally Safe

Generally safe, but caution may be required in some patients.

Liver

Generally Safe

Generally safe, but caution may be required in some patients.

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

Precautions: Zynaten Syrup can cause drowsiness, so caution is advised when driving, operating machinery, or supervising children until you know how it affects you; use with care in the elderly and in anyone with epilepsy, as ketotifen may occasionally lower the seizure threshold. Pregnant or breastfeeding women, and parents of young children, should check with a doctor or pharmacist before use.

When to See a Doctor or Pharmacist: Speak to a doctor or pharmacist if allergy symptoms persist or worsen despite regular use, if wheezing or breathing difficulty occurs (this syrup is not a reliever for a sudden asthma attack), or if you notice unusual bruising, bleeding, or signs of infection while on treatment.

Frequently Asked Questions

Product Specifications

Classification	Non-prescription
Ingredients / Active Ingredients	Salbutamol
Volume	60ml
Shelf Life	Use Zynaten Syrup before the expiry date printed on the bottle or carton; do not use the syrup after this date, and discard any unused syrup within the in-use period stated on the label once the bottle has been opened.