Glucophage 850mg Tablet

Brand Merck
(0 Reviews)
  • Fast Delivery
  • Muslim-Friendly
  • FDA Approved
  • Secure Payment
Save: RM6.33   25% OFF
🎟️ Available Vouchers
PAYDAY20
RM20 OFF
Min Spend RM500.00
Valid till: 30 Sep 2026
PAYDAY10
RM10 OFF
Min Spend RM250.00
Valid till: 30 Sep 2026
PD18
RM18 OFF
Min Spend RM400.00
Valid till: 29 Sep 2026
PD9
RM9 OFF
Min Spend RM280.00
Valid till: 29 Sep 2026
THREE10
RM10 OFF
Min Spend RM50.00
Valid till: 30 Dec 2026
2NDBUY10
RM10 OFF
Min Spend RM50.00
Valid till: 30 Dec 2026
DOCAPP10
RM10 OFF
Min Spend RM50.00
Valid till: 30 Dec 2026

Click a voucher to copy the code. Automatically applied at checkout if conditions are met.

Overview

Glucophage 850mg Tablet contains Metformin Hydrochloride 850mg and is presented as a tablet. It is supplied in pack sizes of 100s and 20s.

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

Glucophage 850mg Tablet must only be taken according to a doctor’s prescription and dosing schedule. It is usually taken with or right after meals, most commonly once or twice daily depending on the total daily dose prescribed, and the tablet should be swallowed whole with water rather than crushed or chewed unless a doctor has advised otherwise.

Dosage

The dose is individualised and determined by the prescribing doctor based on prior metformin use, blood glucose targets, and kidney function; patients transitioning from 500mg tablets are commonly moved to 850mg dosing to reduce the number of tablets needed per day while maintaining the same total daily metformin dose. Doses should never be changed or doubled up without a doctor’s explicit instruction.

Shelf Life

Glucophage 850mg Tablet is generally valid for up to 36 months from the date of manufacture when stored correctly and unopened; the exact expiry date is printed on the blister strip and outer carton and should be verified prior to use.

Storage Instructions

Store below 30°C in a cool, dry place away from direct sunlight and excess moisture, keeping the tablets sealed in their original blister strip until they are needed. Keep out of reach and sight of children, and do not use tablets that are cracked, discoloured, or past their printed expiry date.

Side Effects

  • Nausea or vomiting
  • Diarrhea
  • Stomach discomfort or cramps
  • Metallic taste in the mouth
  • Loss of appetite
  • Weight loss (in some cases)

Contraindications

  • Known hypersensitivity to metformin or any excipient in the tablet
  • Severe renal impairment or acute kidney injury
  • Conditions associated with tissue hypoxia, such as decompensated heart failure or acute respiratory failure
  • Diabetic ketoacidosis or other forms of acute or chronic metabolic acidosis
  • Severe hepatic impairment
  • Must be temporarily withheld before and after procedures using iodinated contrast media, as directed by a doctor

Drug / Food Interactions

  • Alcohol increases the risk of lactic acidosis and intake should be limited or avoided while on treatment
  • Iodinated contrast agents used in radiological imaging can raise the risk of kidney impairment and lactic acidosis in combination with metformin
  • Corticosteroids, certain diuretics, and other hyperglycaemic medicines may reduce metformin’s glucose-lowering effect
  • Cimetidine and some other drugs can raise circulating metformin levels
  • Combining with insulin or sulfonylureas increases the risk of hypoglycaemia and requires closer monitoring

Quick Tips

  • Take Glucophage 850mg with or immediately after meals to minimise gastrointestinal side effects.
  • If you are stepping up from 500mg tablets, follow your doctor’s dose schedule exactly rather than adjusting it yourself.
  • Swallow the tablet whole with a glass of water; do not crush, split, or chew it.
  • Limit or avoid alcohol, which raises the risk of lactic acidosis when combined with metformin.
  • Keep up with periodic blood tests for kidney function and vitamin B12, which matter even more at this higher strength.
  • Tell your doctor before any scan requiring iodinated contrast dye, as metformin may need to be paused beforehand.
  • Watch for signs of low blood sugar if you are also taking insulin or a sulfonylurea, and know how to treat a hypoglycaemic episode.
  • Seek immediate medical help for unusual muscle pain, rapid breathing, or extreme tiredness, which can indicate lactic acidosis.

Frequently Asked Questions

Do I need a prescription to buy Glucophage 850mg Tablet?

No. Glucophage 850mg 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 Glucophage 850mg Tablet contain?

Glucophage 850mg Tablet is a tablet containing Metformin Hydrochloride 850mg. The full ingredient list is shown in the Composition or Ingredients section on this page and on the product packaging.

What pack sizes does Glucophage 850mg Tablet come in?

It is supplied in pack sizes of 100s and 20s. 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 Glucophage 850mg 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 Glucophage 850mg 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 Glucophage 850mg 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.

How should I store Glucophage 850mg Tablet?

Store below 30°C in a cool, dry place away from direct sunlight and excess moisture, keeping the tablets sealed in their original blister strip until they are needed. Keep out of reach and sight of children, and do not use tablets that are cracked, discoloured, or past their printed expiry date. 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 Glucophage 850mg 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 Glucophage 850mg 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 Glucophage 850mg 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.

Ingredients / Active Ingredients

  • Metformin Hydrochloride 850mg (active ingredient)
  • Povidone
  • Magnesium stearate
  • Hypromellose (film coating)
  • Macrogol
  • Purified water (processing aid)

Safety Advice

Pregnancy

Use With Care

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

Breastfeeding

Generally Safe

This medicine is generally safe during breastfeeding with minimal risk to the infant.

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

Glucophage 850mg Tablet is a prescription medicine in Malaysia, and DoctorOnCall requires an online medical consultation before dispensing so a doctor can confirm the higher dose is appropriate and monitor kidney function and glycaemic control over time. Patients should seek urgent medical attention if they experience unusual muscle pain, marked tiredness, rapid breathing, or abdominal pain, as these may signal the rare but serious complication of lactic acidosis.

Medical Review

Written by:

Dr. Chong Zhan Pong

Doctor of Medicine (MD), International Medical University (IMU)

Reviewed by:

Dr. Mohd Izzat Amir Bin Awang

Doctor of Medicine (MD), University of Mansoura - Manchester

Confirm Action
×

Are you sure?

×

Pharmacist Screening

×

What condition or symptom are you treating with this medication?

*Please select the closest match. A pharmacist may call to verify your selection before dispensing.

Important Medical Information

💊 Recommended Dosage:

The dose is individualised and determined by the prescribing doctor based on prior metformin use, blood glucose targets, and kidney function; patients transitioning from 500mg tablets are commonly moved to 850mg dosing to reduce the number of tablets needed per day while maintaining the same total daily metformin dose. Doses should never be changed or doubled up without a doctor’s explicit instruction.

🛑 Contraindications (Do not use if):
  • Known hypersensitivity to metformin or any excipient in the tablet
  • Severe renal impairment or acute kidney injury
  • Conditions associated with tissue hypoxia, such as decompensated heart failure or acute respiratory failure
  • Diabetic ketoacidosis or other forms of acute or chronic metabolic acidosis
  • Severe hepatic impairment
  • Must be temporarily withheld before and after procedures using iodinated contrast media, as directed by a doctor
If you are unsure, please chat with us or consult your doctor.
⚠️ Common Side Effects:
  • Nausea or vomiting
  • Diarrhea
  • Stomach discomfort or cramps
  • Metallic taste in the mouth
  • Loss of appetite
  • Weight loss (in some cases)
Stop taking this medication immediately and consult your doctor if you experience severe allergic reactions or side effects.
IMPORTANT: Unsure? Chat with our pharmacists (Mon - Sat, 9:00am - 6:00pm) before buying.