Do I need a prescription to buy Cationorm Eye Drops?

No. Cationorm Eye Drops is an over-the-counter (OTC) product and can be ordered without a prescription. It is still dispensed by a registered pharmacist on DoctorOnCall.

What does Cationorm Eye Drops contain?

Cationorm Eye Drops is eye drops containing materials declared on the pack. The full ingredient list is shown in the Ingredients section on this page and on the product packaging.

Why is there no information here about what Cationorm Eye Drops 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 Cationorm Eye Drops?

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 Cationorm Eye Drops 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 Cationorm Eye Drops?

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 Cationorm Eye Drops 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 Cationorm Eye Drops 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.

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

Written byDr. Chong Zhan PongDoctor of Medicine (MD), International Medical University (IMU)

Last updated: October 15, 2026

Overview

Cationorm Eye Drops is eye drops with materials and components declared as its active content.

This is an over-the-counter (OTC) 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

Wash your hands thoroughly before use. Twist or snap open a new single-use vial immediately before instillation. Tilt the head back, gently pull down the lower eyelid to form a small pocket, and instil 1 drop without letting the vial tip touch the eye, eyelashes, or any surface. If wearing contact lenses, remove them before use and wait at least 15 minutes before reinserting, unless advised otherwise by your eye care professional. Discard the vial and any remaining contents immediately after use — do not reuse or store an opened vial for a later dose.

Dosage

The typical dosing, as directed on the product packaging, is 1 drop instilled into the affected eye(s) as needed, using one single-use vial per application. There is no fixed maximum daily frequency stated by the manufacturer, since the formulation is preservative-free, though a doctor or pharmacist can advise on a suitable routine for ongoing use.

Storage Instructions

Store below 25°C in a cool, dry place away from direct sunlight and out of reach of children. Keep vials in their original foil pouch/strip until ready to use.

Side Effects

Mild eye irritation or redness
Dryness or discomfort in the eyes
Allergic reactions such as itching or swelling (rare)
Eye stinging upon application

Contraindications

Known hypersensitivity to cetalkonium chloride, mineral oils, or any other ingredient in Cationorm.
Use on an eye with a penetrating injury, active infection, or following recent intraocular surgery, unless specifically directed by a doctor.

Drug / Food Interactions

No clinically significant drug or food interactions are known for this topical eye product.
If more than one type of eye drop is being used, space the different products at least 5 to 10 minutes apart, and instil Cationorm last if used alongside another ophthalmic gel or ointment.

Quick Tips

Wash your hands before opening each single-use vial.
Never let the vial tip touch the eye, eyelid, fingers, or any surface.
Use one vial per application and discard it immediately afterwards — never save an opened vial for later.
Remove contact lenses before use and wait at least 15 minutes before reinserting, unless your eye care professional advises otherwise.
Keep unopened vials in their original foil packaging, stored below 25°C away from direct sunlight.
Gently shake the vial before opening, as mineral oil emulsions can settle slightly during storage.

Ingredients / Active Ingredients

Cetalkonium Chloride

Safety Advice

Pregnancy

Safe If Prescribed

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

Breastfeeding

Limited Data

Limited data on excretion in breast milk. Consult a doctor before use.

Kidney

Limited Data

Limited data in kidney disease patients. Use only if necessary.

Liver

Limited Data

Limited data available in liver disease patients.

Alcohol

Generally Safe

Consuming alcohol with this medicine is generally safe, but moderate intake is advised.

Driving

Use With Care

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

Relevant Information

Precautions: Remove contact lenses before instilling Cationorm and wait at least 15 minutes before reinserting, unless your eye care professional advises otherwise. Because each vial is preservative-free and single-use, never reuse an opened vial across different eyes or on a later occasion. Use in pregnant or breastfeeding women, young children, and the elderly should be discussed with a pharmacist or doctor first.

When to See a Doctor or Pharmacist: Seek prompt advice if there is eye pain, light sensitivity, discharge, worsening redness, vision changes, or if symptoms persist despite regular use.

Frequently Asked Questions

Product Specifications

Classification	Non-prescription
Ingredients / Active Ingredients	Cetalkonium Chloride
Pack Contents	0.4ml x30
Shelf Life	Use before the expiry date printed on the carton and vial strip. Because Cationorm is preservative-free, each vial must be discarded immediately after a single use and never reused, even within the same day.