Do I need a prescription to buy Nasaleze 800mg Childrens Allergy Blocker?

No. Nasaleze 800mg Childrens Allergy Blocker 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 Nasaleze 800mg Childrens Allergy Blocker contain?

Nasaleze 800mg Childrens Allergy Blocker is a healthcare product containing 100% inert cellulose powder and Natural peppermint powder. The full ingredient list is shown in the Ingredients section on this page and on the product packaging.

What pack sizes does Nasaleze 800mg Childrens Allergy Blocker come in?

It is supplied in a pack size of 1s. 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 Nasaleze 800mg Childrens Allergy Blocker 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 Nasaleze 800mg Childrens Allergy Blocker?

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 Nasaleze 800mg Childrens Allergy Blocker 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 Nasaleze 800mg Childrens Allergy Blocker?

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 Nasaleze 800mg Childrens Allergy Blocker 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 Nasaleze 800mg Childrens Allergy Blocker 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.

Nasaleze 800mg Childrens Allergy Blocker

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Nasaleze 800mg Childrens Allergy Blocker

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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

Nasaleze 800mg Childrens Allergy Blocker contains 100% inert cellulose powder and Natural peppermint powder and is presented as a healthcare product. It is supplied in a pack size of 1s.

It is classified as an over-the-counter (OTC) 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

Have your child gently blow their nose first to clear the nasal passage. Shake the bottle well, then help your child insert the nozzle just inside one nostril and apply one puff while they inhale gently through the nose; repeat for the other nostril. Avoid spraying into the eyes. Reapply as needed throughout the day, especially after nose-blowing or before entering a high-allergen environment, and supervise young children during use.

Dosage

The typical usage is one puff into each nostril, two to three times a day, or as needed, particularly before or during exposure to a known allergen trigger. There is no fixed maximum daily dose stated because the product is not a systemic drug, but it should be used according to the instructions on the packaging and under adult supervision for young children.

Storage Instructions

Store below 25°C in a cool, dry place, out of direct sunlight and out of reach of children. Close the bottle tightly between uses to keep the powder dry and free-flowing.

Side Effects

Common: Mild, temporary sneezing shortly after application.
Common: Temporary nasal dryness or a light tickling sensation in the nose.
Serious: Marked swelling, persistent irritation, nosebleeds, or difficulty breathing are not expected with normal use, but would need prompt medical attention if they occurred.

Contraindications

Known hypersensitivity or allergy to cellulose powder or any other ingredient in the formulation.
Not recommended for children below the minimum age stated on the packaging without first checking with a doctor or pharmacist.
Not for oral, eye, or ear use — nasal application only, and not a substitute for treatment of an active nasal infection or nasal injury.

Drug / Food Interactions

No pharmacological drug interactions are known, as this product is drug-free and works only as a physical barrier on the nasal lining rather than being absorbed into the bloodstream.
If your child is also using a different nasal spray or nasal medicine, space the two applications a few minutes apart so one product does not physically wash away or block the effect of the other.
No specific food interactions are known.

Quick Tips

Apply before school, outdoor play, or other activities during high-pollen or high-dust seasons.
Reapply after your child blows their nose, as this can remove the coating.
Supervise young children closely during application and avoid spraying near the eyes.
Keep the bottle for your child’s personal use only, for hygiene reasons.
Store away from heat and direct sunlight so the powder stays dry and free-flowing.
Continue any treatment prescribed by your child’s doctor unless advised otherwise; this product is a drug-free option and does not replace prescribed treatment.

Relevant Information

Precautions: Nasaleze 800mg Childrens Allergy Blocker is drug-free and generally well tolerated, but children with a known sensitivity to cellulose or other listed ingredients should avoid it. It is generally described as suitable from 18 months of age under adult supervision; always confirm the exact age guidance on your packaging and use caution in children with frequent nosebleeds or other nasal conditions.

When to See a Doctor or Pharmacist: Speak with a doctor or pharmacist if your child’s allergy symptoms are severe, affect breathing, or do not improve with this and other usual measures, as they may need a prescribed antihistamine, nasal steroid, or further assessment. Also seek advice before use in children under the labelled minimum age or with an underlying nasal or respiratory condition.

Frequently Asked Questions

Product Specifications

Classification	Non-prescription
Pack Size	1s
Shelf Life	A specific shelf-life duration for this product was not independently confirmed for this listing. Please use the product before the expiry date printed on the packaging, and do not use it if the expiry date has passed.