Do I need a prescription to buy Allerstop Spray?

No. Allerstop Spray 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 Allerstop Spray contain?

Allerstop Spray is a spray containing in Allerstop Spray is Azelastine Hydrochloride, a powerful yet gentle antihistamine. The full ingredient list is shown in the Ingredients section on this page and on the product packaging.

What pack sizes does Allerstop Spray come in?

It is supplied in a pack size of 30ml. 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 Allerstop Spray 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 Allerstop Spray?

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 Allerstop Spray 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 Allerstop Spray?

Store below 25°C in a dry place away from direct sunlight. Keep the bottle upright with the cap on when not in use. Keep out of reach of children. Do not use if the spray nozzle is blocked or damaged. 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 Allerstop Spray?

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 Allerstop Spray 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 Allerstop Spray 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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Allerstop Spray

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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)

Overview

Allerstop Spray is a spray with in Allerstop Spray is Azelastine Hydrochloride, a powerful yet gentle antihistamine declared as its active content. It is supplied in a pack size of 30ml.

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

Shake the bottle gently before use. Remove the cap and, keeping the head upright, insert the nozzle tip into one nostril while gently closing the other nostril with a finger. Press the pump firmly to release one spray while inhaling gently through the nose, then repeat in the other nostril. Wipe the nozzle tip clean with a tissue after use and replace the cap. Avoid tilting the head backwards during or immediately after spraying.

Dosage

As an intranasal spray, this product is used according to a set number of sprays into each nostril rather than a body-weight-based or oral dose. The manufacturer’s general directions indicate one to two sprays per nostril, repeated two to three times a day, or as directed on the product label or by a pharmacist.

Shelf Life

The printed expiry date on the bottle and carton should always be checked before use. No separate in-use shelf-life period beyond the manufacturer’s printed expiry date has been independently confirmed for this product, so it should be discarded by the labelled expiry date regardless of when the bottle was first opened.

Side Effects

Common: Mild, transient nasal irritation, a tickling sensation, or sneezing immediately after spraying.
Common: A temporary sensation of nasal dryness or mild stuffiness.
Serious: Hypersensitivity reactions, such as facial swelling, rash or breathing difficulty, which require immediate medical attention if they occur.

Contraindications

Known hypersensitivity to quercetin, any flavonoid derivative, or any other component of the spray.
Significant nasal trauma, recent nasal surgery, or a perforated nasal septum, unless a doctor has advised its use.
Use in infants has not been established; use in young children should first be discussed with a doctor or pharmacist.

Drug / Food Interactions

No clinically significant drug interactions have been established for intranasal liposomal quercetin at the concentration used in this product.
Using this spray together with other intranasal products, such as decongestant or corticosteroid nasal sprays, has not been specifically studied; applications should be spaced apart and discussed with a pharmacist.
No clinically significant food interactions are known for this product.

Quick Tips

Prime a new bottle with a couple of test sprays into the air before the first nasal application.
Blow your nose gently before spraying so the mist reaches the nasal lining rather than any mucus.
Keep the nozzle tip clean and free of dried residue between uses.
Avoid sharing your bottle with other people, for hygiene reasons.
Store the bottle upright to reduce the risk of leakage from the pump mechanism.
Note the date you first opened the bottle so you can track it alongside the printed expiry date.

Relevant Information

Precautions: This product is applied to the nasal lining only and should not be swallowed or sprayed into the eyes. People with chronic nasal or sinus conditions, recent nasal surgery, or a history of nosebleeds should check with a pharmacist or doctor before use. Use in pregnancy and breastfeeding should be discussed with a healthcare professional, as clinical data in these groups is limited.

When to See a Doctor or Pharmacist: Seek medical advice if nasal symptoms persist unchanged after regular use, if nosebleeds, significant nasal pain, or persistent crusting develop, or if you notice any signs of an allergic reaction, such as facial swelling or difficulty breathing, after use.

Frequently Asked Questions

Product Specifications

Classification	Non-prescription
Volume	30ml
Storage Instructions	Store below 25°C in a dry place away from direct sunlight. Keep the bottle upright with the cap on when not in use. Keep out of reach of children. Do not use if the spray nozzle is blocked or damaged.