Do I need a prescription to buy Zyrtec 1mg/ml Solution?

No. Zyrtec 1mg/ml Solution is a non-prescription product and can be ordered without a prescription. It is still dispensed by a registered pharmacist on DoctorOnCall.

What does Zyrtec 1mg/ml Solution contain?

Zyrtec 1mg/ml Solution is a solution containing Cetirizine Dihydrochloride 1mg per ml. The full ingredient list is shown in the Composition or Ingredients section on this page and on the product packaging.

What pack sizes does Zyrtec 1mg/ml Solution come in?

It is supplied in a pack size of 75ml. 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 Zyrtec 1mg/ml Solution 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 Zyrtec 1mg/ml Solution?

Use it exactly as stated on the pack label, without changing the amount or how often you use it. If anything on the label is unclear, check with a pharmacist before the first use, and read the Directions for Use section on this page.

Can I speak to a doctor or pharmacist about Zyrtec 1mg/ml Solution 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 Zyrtec 1mg/ml Solution?

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 Zyrtec 1mg/ml Solution 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 Zyrtec 1mg/ml Solution 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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Zyrtec 1mg/ml Solution

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Manufacturer GSK

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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

Zyrtec 1mg/ml Solution contains Cetirizine Dihydrochloride 1mg per ml and is presented as a solution. It is supplied in a pack size of 75ml.

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 gently if instructed on the label, and measure the dose accurately using the measuring device provided rather than a household spoon. Zyrtec 1mg/ml Solution can be taken with or without food, and the dose should be based on the patient’s age as shown on the product label or advised by a pharmacist. Although less sedating than older antihistamines, take care with driving or operating machinery until you know how it affects you.

Dosage

Adults and children aged 12 years and above usually take 10ml (10mg) once daily. Children aged 6 to 11 years are typically given 5ml (5mg) once daily or 2.5ml (2.5mg) twice daily, while children aged 2 to 5 years are usually given a lower dose of around 2.5ml (2.5mg) once daily, or as directed by a doctor or pharmacist. This solution is generally not recommended for infants under 2 years unless specifically advised by a doctor, and the exact paediatric dose should always be confirmed against the product label.

Shelf Life

Unopened, Zyrtec 1mg/ml Solution is generally stable until the expiry date printed on the bottle or carton when stored correctly; once opened, it should generally be used within the timeframe stated on the label or leaflet, so check the packaging for specific guidance.

Storage Instructions

Store below 30°C in a cool, dry place away from direct sunlight, keep the bottle tightly closed between uses, and do not freeze. Keep out of the reach and sight of children.

Side Effects

Drowsiness or sleepiness (less common compared to older antihistamines)
Dry mouth
Fatigue
Headache
Dizziness
Sore throat
Nausea

Contraindications

Known hypersensitivity to cetirizine, hydroxyzine, or any piperazine derivative
Severe kidney impairment without appropriate dose adjustment
Not recommended for infants under 2 years unless directed by a doctor
Not a treatment for anaphylaxis or a severe/emergency allergic reaction — seek emergency medical care instead

Drug / Food Interactions

Alcohol – may increase drowsiness, even though cetirizine is a lower-sedation antihistamine
Other sedating medicines – possible additive drowsiness
Theophylline – may slightly reduce clearance of cetirizine
Other antihistamines – avoid combining to prevent unnecessary duplication and side effects
No significant interaction with common foods, though it’s best avoided with alcohol

Quick Tips

Always use the measuring device provided for accurate dosing
Give the dose based on the child’s age as shown on the label
Store tightly closed and away from direct sunlight
Even though it’s less sedating, monitor for drowsiness the first time it’s given
Ask a pharmacist before giving to infants under 2 years
See a doctor if allergy symptoms persist despite regular use

Ingredients / Active Ingredients

Cetirizine

Cetirizine Dihydrochloride 1mg per ml (active ingredient)
Sorbitol or a sugar-free sweetening base
Flavouring agent
Preservative (e.g. a permitted antimicrobial preservative)
Purified water
Exact inactive ingredients may vary — refer to the product packaging or leaflet for the full list

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

Zyrtec 1mg/ml Solution contains cetirizine, a well-established second-generation antihistamine widely used in liquid form for children and adults. Pregnant or breastfeeding women, elderly patients, and those with kidney impairment should check with a pharmacist or doctor before use, and parents should always confirm the correct paediatric dose before giving it to a child. Severe allergic reactions with breathing difficulty, facial or throat swelling, or widespread hives require urgent medical attention rather than self-treatment with this solution.