Gliben-M

Quick links to important sections

Gliben-M

Treatment option:

Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Gliben-M

Quick Facts

Property Description
Active Ingredients Glibenclamide, Metformin
Form Oral tablet
Pharmacological Class Oral Hypoglycemic Agent (OHA)
Common Use Management of Type 2 Diabetes Mellitus
Origin Synthetic

What Type of Medicine is Gliben-M and What Class Does It Belong To?

Gliben-M is a fixed-dose combination (FDC) synthetic medication classified as an Oral Hypoglycemic Agent (OHA), which is used to manage high blood sugar. This drug is a pharmaceutical product, administered orally in the form of a solid tablet, that combines two distinct active ingredients for treating metabolic imbalances. As a member of the broader class of Antidiabetic drugs, Gliben-M is specifically indicated as an adjunct to diet and exercise to improve glycemic control in adults with Type 2 Diabetes Mellitus. The use of this FDC strategy is clinically recognized for its role in simplifying patient adherence compared to taking the two components as separate pills.


Gliben-M: Composition and Dual-Action Strategy

The active ingredients in Gliben-M are the synthetic compounds Glibenclamide and Metformin. The combination utilizes two agents from different pharmacological categories to address the primary defects of the disease. The first component, Glibenclamide, is a sulfonylurea derivative that functions as an insulin secretagogue, which stimulates the pancreas to release more insulin. The second component, Metformin, is a biguanide that acts as an insulin sensitizer, improving how the body’s cells utilize insulin. This complementary action provides comprehensive coverage for both insulin deficiency and insulin resistance.


What is the General Purpose of Gliben-M?

The general purpose of Gliben-M is to help achieve and maintain blood glucose levels within a therapeutic range for adults with Type 2 Diabetes Mellitus. The drug's primary function is to support better metabolic health, for example, in patients who have not achieved adequate blood sugar targets with Metformin alone. This preparation leverages the synergistic power of its dual composition to provide a more comprehensive approach to blood sugar management than relying on either component in isolation.

Regulatory References

  1. MedlinePlus: Glyburide and Metformin Drug Information

What side effects are possible with Gliben-M?

Possible Side Effects and Safety Information

Gliben-M is a combination drug containing glibenclamide (a sulfonylurea) and metformin (a biguanide). The safety profile is dominated by the risks associated with these two distinct classes of medication.


Adverse Reactions and Frequencies

Classification Adverse Reactions (Examples) Clinically Significant Considerations
Common Hypoglycemia (low blood sugar), Nausea, Vomiting, Diarrhea, Abdominal pain, Heartburn, Weight gain. Hypoglycemia is the most frequent and serious risk, often linked to the glibenclamide component. Gastrointestinal issues are primarily related to metformin.
Rare/Serious Lactic Acidosis, Severe Hypoglycemia (potentially leading to coma/seizures), Hemolytic Anemia (in G6PD deficiency), Allergic reactions (e.g., angioedema), Liver dysfunction. Lactic acidosis is a rare but life-threatening complication associated with metformin accumulation, typically in patients with compromised kidney function.

Safety Restrictions and Population Considerations

Contraindications in regulatory documents strictly prohibit the use of Gliben-M in cases of:

  • Type 1 diabetes or diabetic ketoacidosis.
  • Severe renal (kidney) or hepatic (liver) impairment.
  • Acute conditions that risk affecting kidney function, such as severe dehydration, shock, or severe infection.
  • Hypersensitivity or allergic reactions to sulfonylureas, metformin, or sulfonamides.

Specific Safety Considerations:

  • Elderly Patients: Use requires caution, and lower doses are advised due to an increased risk of severe hypoglycemia and potential kidney function decline.
  • Renal Function: Regular monitoring of kidney function (eGFR) is essential. The drug must be discontinued if kidney function falls below a specified threshold due to the risk of metformin accumulation and lactic acidosis.
  • Pregnancy and Breastfeeding: Use is generally contraindicated or not recommended during pregnancy, with insulin being the preferred therapy. Breastfeeding is also considered contraindicated by official regulatory bodies.

Overdose and Emergency Response

The Gliben-M overdose profile is defined by the dual risk of severe hypoglycemia (Glibenclamide component) and lactic acidosis (Metformin component), both classified as life-threatening medical emergencies by regulatory authorities. Overdose manifestations and required actions are detailed below based on official labeling.

Overdose Risk & Signs Emergency Actions & Considerations
Hypoglycemia presents with signs such as trembling, confusion, tachycardia, seizures, or coma. Severe hypoglycemia requires immediate medical attention and administration of intravenous glucose solution in a hospital setting.
Lactic Acidosis may be indicated by non-specific symptoms including malaise, somnolence, abdominal pain, hypotension, and acidotic dyspnoea. The medication must be immediately discontinued upon suspicion of lactic acidosis. Treatment often requires prompt hemodialysis to remove accumulated Metformin, as no specific pharmacological antidote is available.
Population Risks The risk of severe outcomes, particularly lactic acidosis, is elevated in the elderly and in patients with underlying renal or hepatic impairment.

Regulatory guidance mandates that patients seek urgent medical help or contact a Poison Control Center immediately if any of these severe signs or symptoms are suspected. The required management involves continuous observation and targeted supportive care to stabilize the patient and resolve the dual metabolic crisis.

Therapeutic Uses of Gliben-M

Quick Facts on Gliben-M's Therapeutic Role

  • Type 2 Diabetes: Supports the management of blood sugar levels.
  • Glycemic Control: Indicated as an adjunct to changes in diet and regular exercise.
  • Long-Term Support: May help lower the risk of complications associated with elevated blood glucose over time.

What Gliben-M Treats: Main Uses and Benefits

Gliben-M is a prescription medication utilized in adults for the management of type 2 diabetes mellitus. It is consistently recommended for use alongside a physician-approved diet plan and a routine of physical activity to support overall glycemic control. The medication is specifically considered when blood glucose levels remain insufficiently regulated by diet and exercise alone.

The therapeutic intent of Gliben-M is to contribute to a reduction in high blood sugar levels. This effect may help to mitigate the potential for long-term health concerns that are associated with uncontrolled type 2 diabetes, such as issues affecting the kidneys, nerves, and vision. This use is consistent with the management of the condition using combination therapies containing glibenclamide and metformin.

When incorporated into a comprehensive management strategy, Gliben-M may support the body's ability to maintain blood glucose within a target range. Consult a healthcare professional to determine if this medication is appropriate for your specific condition and medical history.

Eligibility and Restrictions for Use

Gliben-M, a combination of Glibenclamide and Metformin, is primarily indicated for adults with Type 2 Diabetes Mellitus. Eligibility is strictly defined by regulatory bodies to manage the risk of complications like lactic acidosis and severe hypoglycemia.

Contraindications and Prohibited Use

Gliben-M must not be used in the following populations or clinical states, as specified in regulatory labeling:

  • Patients with Type 1 Diabetes or Diabetic Ketoacidosis.
  • Any form of acute or chronic metabolic acidosis, including lactic acidosis.
  • Severe impairment of renal function (e.g., eGFR below 30 mL/min/1.73 m^2).
  • Serious hepatic impairment or acute alcoholism.
  • Before or during procedures involving intravascular iodinated contrast agents or major surgery, where treatment must be temporarily discontinued.

Restricted and Special Populations

Population Category Regulatory Status Restriction Basis
Pediatric Patients (<18) Use Not Established Lack of safety and efficacy data.
Pregnancy/Breastfeeding Not Recommended Insulin is the preferred therapy for glycemic control.
Older Adults (Age 65+) Conditional Use Requires careful assessment of renal function and dose adjustment due to increased risk of hypoglycemia and Metformin accumulation.
G6PD Deficiency Caution/Non-sulfonylurea Alternative Risk of hemolytic anemia due to Glibenclamide component.

Eligibility is limited to patients who do not possess these documented risk factors, particularly those related to organ function and acute medical instability.

What should I know about interactions with other medicines?

Gliben-M Interactions with other medicines and products

The interaction profile of Gliben-M, a fixed-dose combination of Glibenclamide and Metformin, is primarily defined by mandatory regulatory restrictions and documented changes in drug exposure.

Classification Interaction Rule
Contraindicated Co-administration with systemic Miconazole is formally prohibited due to the risk of severe hypoglycemia associated with Glibenclamide.
Required Cessation The drug must be temporarily discontinued at the time of or prior to any procedure involving iodinated contrast agents. It is not to be resumed until renal function is re-evaluated and found to be stable after at least 48 hours.

Pharmacokinetic and Pharmacodynamic Interactions

Co-administration with potent CYP2C9 inhibitors (e.g., Fluconazole) is documented to increase the plasma concentration of Glibenclamide, which may heighten the risk of hypoglycemia. Conversely, CYP2C9 inducers may reduce exposure. Metformin levels may be significantly increased by inhibitors of specific renal transporters, such as OCT2 and MATE (e.g., Cimetidine, Ranolazine), which formally reduce its clearance.

Pharmacodynamic effects are documented with classes of medicines that may either augment Gliben-M's action (e.g., NSAIDs, ACE inhibitors) or work against it (e.g., Glucocorticoids, Diuretics), potentially affecting blood glucose control. Gliben-M should be administered at least 4 hours prior to Colesevelam due to documented reduced absorption of Glibenclamide.

Substance-Specific Warnings

Excessive intake of alcohol is formally documented to significantly potentiate the risk of Lactic Acidosis associated with the Metformin component. The risk of interaction, particularly concerning Metformin accumulation, is noted to be greater in patients with renal impairment.

Mechanism of Action

How Gliben-M Works: A Dual Mechanism of Action

Gliben-M operates through two distinct yet complementary mechanistic domains to produce a coordinated change in glucose regulatory physiology.


Forced Insulin Release via Pancreatic K ATP Channel Blockade

The Glibenclamide component acts directly on the beta-cells in the pancreas by blocking the Sulfonylurea Receptor 1 (SUR1) subunit of the K ATP ion channel. This specific molecular interaction initiates a cellular cascade—involving membrane depolarization and calcium influx—that compels the cell to secrete stored insulin, resulting in a rise in the concentration of circulating insulin.


Suppression of Hepatic Glucose Output by AMPK Activation

The Metformin component begins by mildly inhibiting the Mitochondrial Complex I in the liver. This disruption activates the energy sensor AMP-activated protein kinase (AMPK), which subsequently suppresses the genetic instructions for key enzymes needed in the gluconeogenesis pathway. The primary physiological consequence is a reduction in the liver's production and output of glucose, specifically influencing the fasting metabolic state.


Synergy: Multi-Point Modulation of Glucose Homeostasis

The drug leverages the synergy between these two mechanisms: forced hormone release (Glibenclamide) and the suppression of glucose synthesis/enhancement of tissue sensitivity (Metformin). By modulating the two key regulatory points—the insulin supply and the tissue response—the drug achieves a coordinated physiological effect that influences multiple facets of systemic glucose regulation.

Dosage and Administration Information

How to Use Gliben-M

The Glibenclamide/Metformin fixed-dose combination (FDC) is administered via the oral route as a tablet and is intended for the long-term management of Type 2 Diabetes Mellitus. The medication is typically taken in divided doses, twice daily, with the tablet ingested with meals or at the start of eating. This mandatory timing is a central principle of its administration protocol.


Dosage and Adjustment

For patients initiating therapy with the FDC, the typical starting dose is 1.25 mg Glibenclamide / 250 mg Metformin, taken once or twice daily. The dose is subject to gradual adjustment, increasing in increments no more frequently than every two weeks, based on the physician’s assessment of glycemic response. The total maximum daily intake is strictly limited, not to exceed 20 mg of Glibenclamide and 2000 mg of Metformin combined.


Usage Constraints

This combination product is officially restricted to use in adults and is not approved for pediatric patients. Specific dosing constraints exist for older adults, who must generally be started on the lowest available strength. Furthermore, administration is governed by strict limitations related to renal function; for instance, the medication must be discontinued if the estimated Glomerular Filtration Rate (eGFR) falls below 30 mL/min/1.73 m^2. This requirement establishes a mandatory procedural restriction tied to the drug’s official use.

Recent Clinical Evidence

Overview of Combination Therapy

This section summarizes the clinical data on the drug combination, which includes the active ingredients glibenclamide (a sulfonylurea) and metformin (a biguanide). The combined therapy is used to manage Type 2 Diabetes Mellitus by acting on two distinct mechanisms to help control blood glucose levels.

Research has explored whether the combined use of glibenclamide and metformin is associated with differences in Glycated Hemoglobin (HbA1c) and Fasting Plasma Glucose (FPG) levels compared to using either drug alone.


Key Study Findings

Glycemic Control Outcomes

A meta-analysis of randomized controlled trials (RCTs) reported that combination therapy was associated with a greater reduction in HbA1c compared to monotherapy with either glibenclamide or metformin. These trials investigated the combination as a treatment for patients whose diabetes was inadequately controlled on metformin or sulfonylurea alone.

One double-blind, parallel-group trial reported greater decreases in HbA1c and FPG when the combination was used compared to individual monotherapies. This was associated with a higher proportion of patients reaching the glycemic target of HbA1c less than 7% in the combination groups.


Safety and Tolerability Data

Clinical trials assessed the safety profile of the combination. The incidence of symptoms related to hypoglycemia (low blood sugar) varied across dosages, but severe or biochemically confirmed hypoglycemia was reported as consistently low and comparable with glibenclamide monotherapy.

Studies noted that the combination, particularly at lower doses of metformin, was associated with fewer reports of gastrointestinal adverse effects compared to treatment with metformin alone. The combination approach was reported to be well tolerated by most patients in the clinical trial settings.

Key Studies & References

  1. NICE Guideline NG28: Type 2 diabetes in adults: management (Section on Dual Therapy)

Frequently Asked Questions (FAQ)

Common questions about Gliben-M (FAQ)

Q: What is the difference between Gliben-M and other single-ingredient diabetes medications like Metformin alone?

A: Gliben-M is a combination medication that contains two active ingredients: Glibenclamide and Metformin. According to official product information, Metformin alone helps lower blood sugar by decreasing the amount of glucose the liver makes and improving how the body uses insulin. Gliben-M adds the Glibenclamide component, which works separately to stimulate the pancreas to release more of its own insulin. This dual action targets different processes in the body's sugar regulation.

Q: Is a bit of weight gain expected when starting Gliben-M?

A: Yes, weight gain has been reported as a common side effect in clinical trials of this medication. This effect is often associated with the Glibenclamide component, which is part of the sulfonylurea class of drugs. Official product information lists this as one of the commonly experienced adverse reactions.

Q: Is it normal to feel nauseous or have an upset stomach when first taking Gliben-M?

A: It is common to experience gastrointestinal side effects such as nausea or upset stomach, particularly when you first start taking Gliben-M. Regulatory documents note that taking the medication with meals is part of the administration protocol and may help minimize these stomach-related issues. These effects are primarily linked to the Metformin component.

Q: Are there any signs of a serious side effect I should watch out for with Gliben-M?

A: Official warnings highlight two serious risks: Lactic Acidosis and severe Hypoglycemia (very low blood sugar). Watch for symptoms of Lactic Acidosis such as unusual muscle pain, unexplained sleepiness, or fast/shallow breathing. Signs of severe Hypoglycemia may include confusion, extreme dizziness, or loss of consciousness. If these symptoms occur, regulatory information advises seeking medical attention promptly.

Q: Are there any specific cold or flu medicines that should be avoided with Gliben-M?

A: Official guidance advises that Gliben-M must be temporarily stopped at the time of or prior to any major surgery or diagnostic procedure involving an iodinated contrast agent. Regulatory guidance includes a requirement to temporarily discontinue the drug if the patient develops an acute condition that may affect kidney function, such as severe infection or illness involving dehydration. This decision should always be made by a healthcare provider.

Q: Does Gliben-M interact with blood pressure medications (ACE inhibitors, beta-blockers)?

A: Yes, regulatory documents note that certain medications, including classes of blood pressure drugs like ACE inhibitors and beta-blockers, can potentially increase the effect of Gliben-M. This may raise the risk of experiencing hypoglycemia (low blood sugar). Official documentation indicates that blood glucose levels may require closer monitoring when these types of medicines are used together.

Q: Can Gliben-M affect my energy levels during the day?

A: Symptoms that may affect energy levels are listed in the adverse reaction reports for the drug. These include dizziness and a general feeling of tiredness or weakness. If you experience symptoms of hypoglycemia—which can be linked to the Glibenclamide component—you may also feel lightheaded and experience temporary changes in energy.

Q: What is the role of diet and exercise when taking Gliben-M?

A: According to official product information, Gliben-M is strictly indicated as an adjunct to diet and exercise. This means the medication is intended to support, not replace, lifestyle changes. Maintaining a prescribed diet and regular physical activity is generally recognized as a fundamental part of managing Type 2 Diabetes Mellitus.

Q: Is it common to have headaches when adjusting to Gliben-M?

A: Yes, regulatory documents list headache as one of the reported adverse reactions in clinical trials. If headaches persist or become severe, it is important to consult a healthcare professional.

Q: Can Gliben-M cause Vitamin B12 deficiency over time?

A: Official warnings note that the Metformin component of Gliben-M may lead to a decrease in Vitamin B12 levels over time. Official warnings recommend regular monitoring of Vitamin B12 and other blood parameters while taking this type of medication.

Q: Is it possible to develop a rash or increased sensitivity to the sun while on Gliben-M?

A: Yes, the Glibenclamide component of this combination drug is associated with a risk of photosensitivity (increased sun sensitivity). Official safety documents advise that patients take appropriate precautions when exposed to sunlight. Rash is also listed as a potential symptom of an allergic reaction to the sulfonylurea or sulfonamide components.

Q: How does Gliben-M specifically target insulin resistance?

A: Gliben-M targets insulin resistance through its Metformin component, which belongs to the biguanide class. Official mechanism of action descriptions state that Metformin works primarily by improving how the body’s tissues use insulin, which subsequently increases the uptake and utilization of glucose by the body's cells.

Q: Is there a best time of day to take Gliben-M?

A: Official administration instructions specify that Gliben-M is typically prescribed in divided doses, twice daily, and must be taken with a meal. The purpose of taking the medication with food is to improve tolerance and effectiveness. The precise timing for divided doses should be determined by the treating physician.

Q: Does Gliben-M have any effect on blood glucose levels after a meal?

A: Yes. While the Metformin component is known to help lower fasting blood glucose, regulatory documents confirm that it also works to lower postprandial (after-meal) plasma glucose levels. The combination's dual mechanism aims to regulate blood sugar throughout the day.

Q: Can Gliben-M be used if I am fasting for a medical test or procedure?

A: Official warnings advise that Gliben-M must be temporarily stopped during any period of restricted intake of food and fluids. This includes fasting for a medical test or a major surgery. The drug must also be discontinued when using iodinated contrast agents. A healthcare provider must provide specific guidance on when to stop the medication and when it is safe to resume treatment after any procedure.

Q: What is the risk of Gliben-M in patients with a history of heart disease?

A: Regulatory documents advise caution and careful assessment when prescribing Gliben-M to patients with a history of certain heart conditions, such as heart failure. These conditions are considered states that increase the risk of developing Lactic Acidosis, which is a rare but serious side effect associated with the Metformin component.

Q: Is it normal if my appetite seems different after starting Gliben-M?

A: Changes in appetite are noted in official safety information. Decreased appetite is reported as a common gastrointestinal side effect of metformin-containing products, especially when first starting the medication. A severe loss of appetite may also be a warning sign of the rare, but serious, condition known as Lactic Acidosis.

Q: Can Gliben-M affect my ability to operate machinery or drive?

A: Gliben-M carries a risk of causing hypoglycemia (low blood sugar), which can lead to symptoms like dizziness or confusion. Regulatory documents typically advise that if you experience these symptoms, your ability to perform tasks like driving or operating machinery may be impaired. Because of the risk of hypoglycemia, patients should be aware of how their body responds to the medication before driving or using heavy machinery.

How should Gliben-M be stored and disposed of?

How to Store and Dispose of Gliben-M

The storage and disposal requirements for Gliben-M (Glyburide and Metformin Hydrochloride) are defined by official regulatory labeling to maintain the product's quality.


Storage Conditions

Requirement Specifics
Temperature Store at Controlled Room Temperature (20 C to 25 C / 68 F to 77 F).
Protection Must be stored in light-resistant containers and kept out of excessive moisture.
Child Safety Keep out of the reach and sight of children to prevent accidental ingestion.

Disposal Requirements

Unused or expired Gliben-M must be disposed of according to local pharmaceutical waste regulations. The medicine should not be thrown into household waste or flushed down the toilet to prevent environmental contamination. Utilize an authorized drug take-back program where one is available.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

Equivalent of Gliben-M found in:

A-Z Index: