Glibenclamide 2.5 mg + Metformin 500 mg (pr) is an oral medicine belonging to the category of antidiabetic drugs and is used for the treatment of Type 2 Diabetes mellitus.

More Common  

1. Difficulty with swallowing 
2. Dizziness 
3. Fast heartbeat 
4. Hives, itching, skin rash 
5. Puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue 
6. Tightness in the chest 
7. Trouble breathing 
8. Unusual tiredness or weakness 
9. Abdominal or stomach discomfort 
10. Cough or hoarseness 
11. Decreased appetite 
12. Diarrhea 
13. Fast or shallow breathing 
14. Fever or chills 
15. General feeling of discomfort 
16. Lower back or side pain 
17. Muscle pain or cramping 
18. Painful or difficult urination 
19. Sleepiness 

Less Common 

1. Abdominal or stomach pain 
2. Chills 
3. Clay-colored stools 
4. Dark urine 
5. Diarrhea 
6. Fever 
7. Headache 
8. Light-colored stools 
9. Loss of appetite 
10. Nausea and vomiting 
11. Unpleasant breath odor 
12. Upper right abdominal or stomach pain 
13. Vomiting of blood 
14. Yellow eyes and skin 
15. Unusual muscle pain
16. Feeling cold
17. Trouble breathing
18. Feeling dizzy, light-headed, tired, or very weak
19. Stomach pain, vomiting; or 
20. Slow or irregular heart rate. 

Glibenclamide and metformin work by tackling type 2 diabetes from two different angles to help control high blood sugar. Metformin lowers the amount of sugar made by the liver and improves how the body uses insulin. Glibenclamide stimulates the pancreas to release more insulin when it is needed. Together, they provide stronger blood sugar control than a single medicine alone.

Pregnancy

The safety of Glibenclamide and metformin in pregnancy is not established. Inform your doctor if you are pregnant or planning to conceive

Breastfeeding

Glibenclamide and metformin pass into breast milk. Consult your healthcare provider about whether to continue breastfeeding or not

Kidney and Liver Problems

Glibenclamide and metformin is cleared through the liver and kidneys, so in patients with existing kidney and liver problems, these organs may get strained or damaged. Such patients must always consult a doctor before using the medicine.

Avoid alcohol and smoking while on glibenclamide and metformin, as they strain the liver and pancreas and can disturb blood sugar control, sometimes raising it, sometimes lowering it.

Avoid taking Glibenclamide 2.5 mg + Metformin 500 mg with the following medicines, as it may increase or decrease the desired effect, or in worse cases, it could be fatal:

IUPAC (International Union of Pure and Applied Chemistry)/ Chemical name

Glibenclamide- 5-chloro-N-[2-[4-(cyclohexylcarbamoylsulfamoyl)phenyl]ethyl]-2-methoxybenzamide 

Metformin- N, N-dimethylimidodicarbonimidic diamide

Daily dose

Take Glibenclamide and metformin exactly as your doctor recommends. The dose may change based on your condition and how well you respond. Do not take more than prescribed without consulting your doctor.

Missed Dose

If you forget to take your medicine, take the medication as soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Always consult the doctor before making any changes to your dosage.

Overdose

It is not recommended to take more than 15 mg of Glibenclamide and 1500 mg of metformin per day, as it may cause severe overdosing effects like extreme drowsiness, confusion, low blood pressure, unconsciousness, sweating, and seizures. If there are any overdosing effects seen, immediately give the patient fruit or glucose-containing liquids and sugary foods to minimize the effects.

1. Store the medicine at room temperature 
2. Keep away from sunlight and moisture 
3. Keep out of reach of children 

1. Take Glibenclamide and metformin exactly as prescribed by your doctor, at the same time each day. 
2. Do not stop taking Glibenclamide and metformin without your doctor’s approval, even if you feel better. 
3. If you forget to take Glibenclamide and metformin, take it as soon as you remember. If it’s almost time for your next dose, skip the missed dose. 

This is a combination medicine that helps control type 2 diabetes by combining two actions: metformin lowers sugar made by the liver and improves insulin use, while glibenclamide makes the pancreas release more insulin. Together, they work like a team: one improves how your body uses sugar, and the other boosts insulin to lower it. Common side effects include nausea, loose stools, dizziness, and low blood sugar; rare but serious risks like lactic acidosis can occur, especially if taken with alcohol. Always take this medicine with food to avoid stomach upset and keep your sugar levels steady. Remember, this isn’t just about taking a pill it’s about building a routine that supports your health every day, with smart eating, regular movement, and staying connected to your doctor’s advice.

What are the uses of the Glibenclamide and metformin combination tablet? 

Metformin and Glibenclamide combination tablets are used to control type 2 diabetes when single‑drug therapy is not enough. They work together by reducing sugar made by the liver, improving insulin use, and boosting insulin release from the pancreas for better blood sugar control.

What are the side effects of the Glibenclamide and metformin combination tablet?

The metformin and Glibenclamide combo may cause hypoglycemia, nausea, headache, and flu-like symptoms. It’s important to monitor blood sugar closely, as the risk of low glucose increases when used together.

What are the directions for use of glibenclamide and metformin tablets?

Take the medicine with a sip of water and swallow it without breaking or chewing the tablet and try to take the medicine just before meals to get a maximum effect.

What is the glibenclamide mode of action?

Glibenclamide helps lower blood sugar by telling the pancreas to release more insulin, especially after meals. It works best when taken with food. Skipping meals or drinking alcohol can cause low sugar levels, so it’s important to use it carefully.

1. Mayo Clinic. Glyburide (Oral Route) [Internet]. Rochester (MN): Mayo Foundation for Medical Education and Research; [updated 2023 Aug 1; cited 2025 Aug 18]. Available from. 
2. Drugs.com. Glibenclamide 5mg Tablets: Patient Information Leaflet [Internet]. London (UK): Drugs.com; [cited 2025 Aug 18]. Available from. 
3. Practo. Glibenclamide: Uses, Dosage, Side Effects, Price, Composition [Internet]. Bengaluru (IN): Practo Technologies Pvt Ltd; [cited 2025 Aug 18]. Available from. 
4. National Center for Biotechnology Information. PubChem Compound Summary for CID 3488, Glibenclamide [Internet]. Bethesda (MD): National Library of Medicine (US); [cited 2025 Aug 18]. Available from. 
5. National Center for Biotechnology Information. PubChem Compound Summary for CID 4091, Diphenhydramine. [Internet]. Bethesda (MD): National Library of Medicine (US); [cited 2025 Aug 18]. Available from. 
6. Davis J. Metformin: Uses and Side Effects. [Internet]. New York: WebMD; 2025 Jul 16 [cited 2025 Aug 18]. Available from. 
7. Mayo Clinic Staff. Metformin (oral route): Description and Uses. [Internet]. Rochester (MN): Mayo Foundation for Medical Education and Research; [cited 2025 Aug 18]. Available from.