Do I need a prescription to buy Diamicron 80mg Tablet?

No. Diamicron 80mg Tablet is a non-prescription product and can be ordered without a prescription. It is still dispensed by a registered pharmacist on DoctorOnCall.

What does Diamicron 80mg Tablet contain?

Diamicron 80mg Tablet is a tablet containing Gliclazide 80mg. The full ingredient list is shown in the Composition or Ingredients section on this page and on the product packaging.

What pack sizes does Diamicron 80mg Tablet come in?

It is supplied in pack sizes of 20s and 60s. 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 Diamicron 80mg Tablet 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 Diamicron 80mg Tablet?

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 Diamicron 80mg Tablet 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 Diamicron 80mg Tablet?

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 Diamicron 80mg Tablet 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 Diamicron 80mg Tablet 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.

Diamicron 80mg Tablet gliclazide type 2 diabetes glycaemic | DoctorOnCall Malaysia

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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

Diamicron 80mg Tablet is supplied as a tablet, with Gliclazide 80mg. It is supplied in pack sizes of 20s and 60s.

No prescription is required for this product, as it is a non-prescription medicine. This page is limited to product, safety and handling information.

If you would like guidance before buying, you can speak to a doctor or pharmacist through an online consultation on DoctorOnCall. Orders are dispensed by a registered pharmacist and delivered to your address.

Directions for Use

Diamicron 80mg Tablet is usually taken once or twice daily with breakfast or the first main meal of the day, swallowed whole with a glass of water, exactly as prescribed by your doctor. It is important to eat a meal shortly after taking this medicine to reduce the risk of low blood sugar, and to take it at roughly the same time each day.

Dosage

The dosage of Diamicron 80mg Tablet is individualised based on your blood glucose response, and your doctor may start you on a lower dose before gradually adjusting it. Do not increase, decrease, skip, or double your dose without consulting your doctor, as incorrect dosing can lead to either poor blood sugar control or dangerously low blood sugar.

Shelf Life

Diamicron 80mg Tablet has a shelf life of approximately 36 months from the date of manufacture when stored correctly and left unopened. Always check the expiry date printed on the packaging before use and do not use the tablets beyond this date.

Storage Instructions

Store Diamicron 80mg Tablet below 30°C in a cool, dry place away from direct sunlight and moisture, in its original packaging until ready for use. Keep out of the reach and sight of children.

Side Effects

Low blood sugar (hypoglycaemia)
Nausea or stomach discomfort
Headache
Dizziness
Weight gain
Skin rashes (rare)

Contraindications

Known hypersensitivity to gliclazide, other sulfonylureas, or sulfonamide-derived medicines
Type 1 diabetes
Diabetic ketoacidosis
Severe kidney or liver impairment
Pregnancy and breastfeeding
Concurrent use with miconazole

Drug / Food Interactions

Alcohol may increase the risk and severity of hypoglycaemia and can cause a disulfiram-like reaction
Miconazole significantly increases the blood-glucose-lowering effect and must not be used together with gliclazide
Other antidiabetic medicines, including insulin, may increase the risk of hypoglycaemia when combined
Certain medicines such as NSAIDs, beta-blockers, ACE inhibitors, and some antifungals or antibiotics may alter gliclazide’s blood-glucose-lowering effect
Skipping or delaying meals after taking this medicine increases the risk of low blood sugar

Quick Tips

Take Diamicron 80mg with or shortly before a meal, never on an empty stomach
Never skip a meal after taking a dose
Carry a fast-acting sugar source such as glucose tablets or sweetened juice in case of hypoglycaemia
Learn to recognise early signs of low blood sugar such as shakiness, sweating, or confusion
Monitor your blood glucose regularly as advised by your doctor
Attend regular follow-up appointments to review your dose and overall diabetes control

Ingredients / Active Ingredients

Gliclazide

Gliclazide 80mg (active ingredient)
Lactose monohydrate
Microcrystalline cellulose
Povidone
Magnesium stearate

Safety Advice

Pregnancy

Use With Care

This medicine should be used cautiously during pregnancy. Monitoring may be required.

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

Not Advisable

Not recommended in patients with liver disease.

Alcohol

Not Advisable

It is not advisable to consume alcohol while taking this medicine.

Driving

Not Advisable

It is not advisable to drive if you experience side effects from this medicine.

Relevant Information

Diamicron 80mg Tablet works best when combined with a healthy, controlled-carbohydrate diet and regular physical activity. Because gliclazide can cause low blood sugar, patients should be aware of the warning signs of hypoglycaemia and know how to treat it promptly, and regular monitoring with your doctor helps ensure the dose remains appropriate as your condition changes over time.