Diglumet

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Diglumet

Medically reviewed

Laura Arias

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 Diglumet

Diglumet is a prescription-only, fixed-dose combination medication provided as an oral tablet, used for the management of high blood sugar in adult patients with Type 2 Diabetes Mellitus (T2DM). It is a synthetic drug classified under the umbrella of Oral Antihyperglycemic Agents, signifying its role in lowering blood glucose levels.


Quick Facts

Property Description
Active Ingredients Glibenclamide, Metformin Hydrochloride
Form Tablet (Oral Dosage Form)
Pharmacological Class Sulfonylurea (Glibenclamide) and Biguanide (Metformin)
General Purpose Improving Glycemic Control in T2DM
Origin Synthetic Organic Compound

Diglumet: Definition, Type, and Class

Diglumet is an Oral Antihyperglycemic Agent that belongs to two separate pharmacological classes: the Sulfonylurea class and the Biguanide class. The medication is a synthetic organic compound administered as an oral dosage form. Its dual-class composition is widely utilized when Type 2 Diabetes Mellitus is not adequately controlled by monotherapy. The effectiveness of this combination approach is clinically recognized for managing the complexity of T2DM pathophysiology.


Composition and Active Ingredients

The active ingredients in Diglumet are Glibenclamide and Metformin Hydrochloride, delivered together in a single fixed-dose formulation. Glibenclamide (also known as Glyburide) is designated a Second-generation Sulfonylurea, which functions by stimulating the pancreatic beta cells to release insulin. Metformin Hydrochloride is the single available medication in the Biguanide class, acting primarily by reducing the liver's hepatic glucose production. This combination is distinctive as it provides both an insulin secretagogue effect and an insulin sensitizer/production inhibitor effect in one pill, streamlining therapy.


General Purpose in Type 2 Diabetes Mellitus (T2DM)

The primary purpose of Diglumet is to help patients achieve and maintain targeted blood sugar levels, which is crucial for overall glycemic control in Type 2 Diabetes Mellitus. This therapy is typically considered for adults who require additional support to manage their hyperglycemia. The drug provides a synergistic effect by impacting blood sugar through two separate, yet complementary mechanisms: enhancing the body’s available insulin supply and simultaneously decreasing the amount of sugar produced by the liver. This concurrent, broad action supports comprehensive hyperglycemia management.

Regulatory References

  1. Glyburide: MedlinePlus Drug Information

What side effects are possible with Diglumet?

Possible Side Effects and Safety Information

The safety profile of Diglumet, which combines a sulfonylurea (Glibenclamide) and a biguanide (Metformin), is defined by its regulatory classification of adverse reactions, which fall into categories based on frequency and affected body systems. These classifications detail the officially documented effects of the medicine.


Frequency and System-Organ Classes

The most frequently reported adverse reactions are classified as Common (ge 1/100 to <1/10), predominantly affecting the Gastrointestinal System. These often include Diarrhea, Nausea, Vomiting, and Abdominal Discomfort. Other common effects include Headache and Dizziness.


Serious Adverse Reactions

Two serious metabolic conditions are officially documented: Severe Hypoglycemia (low blood sugar), linked to the Glibenclamide component, and Lactic Acidosis, associated with the Metformin component. Lactic Acidosis is classified as Very Rare but is a serious complication, and its risk increases with the severity of Renal Impairment.


Safety Constraints and Special Populations

Regulatory documents explicitly state that the medication is contraindicated in severe renal impairment (kidney dysfunction) and in patients with evidence of hepatic impairment (liver disease), as these conditions heighten the risk of Lactic Acidosis. For older adults, more frequent monitoring of renal function is advised. Furthermore, the medication must be temporarily discontinued before or at the time of procedures involving iodinated contrast agents or major surgery until renal function is confirmed as stable. Prolonged exposure to Metformin may require periodic monitoring for the potential development of Vitamin B₁₂ deficiency.

Overdose and Emergency Response

The official regulatory profile for Diglumet overdose is defined by the dual risks of its active ingredients, requiring immediate medical attention for a known or suspected excess dose. The Glibenclamide component introduces the potential for Profound Hypoglycemia, a documented severe outcome which may progress to clinical manifestations such as seizures or coma.

The Metformin component is associated with the risk of Lactic Acidosis, a life-threatening metabolic complication. Manifestations of Lactic Acidosis are documented as often being subtle and non-specific, including increasing somnolence, generalized malaise, severe abdominal distress, and respiratory difficulties. Elevated Blood Lactate and decreased Serum pH are specified laboratory abnormalities.

Regulatory documents mandate that medical help must be sought immediately when signs of either condition are present. The official management procedures described include targeted intervention with Glucose/Dextrose for hypoglycemia and the documented procedure of prompt hemodialysis for Metformin removal and correction of severe acidosis.

Regulatory warnings explicitly emphasize that patients with Renal Impairment are at a significantly increased risk for severe Lactic Acidosis following overdose, underscoring the necessity of urgent hospitalization.

Therapeutic Uses of Diglumet

Diglumet is indicated to help manage symptoms associated with certain inflammatory and musculoskeletal conditions. The primary role of this therapeutic option is to provide support for discomfort and aid in maintaining functional capacity during episodes where relief is needed.

It may be utilized in clinical situations involving the temporary relief of symptoms from acute inflammatory processes, as well as in the long-term management of recurring signs of chronic joint stiffness and related physical discomfort. Diglumet's use is often considered a part of a wider approach to care, contributing to the patient's ability to sustain daily movement.

Quick Fact: Therapeutic Support

Diglumet helps in the management of pain and inflammation in affected areas, allowing patients to pursue activities with greater ease.

Eligibility and Restrictions for Use

The use of Diglumet is strictly governed by regulatory documentation, which defines specific populations who are eligible, restricted, or contraindicated for treatment.

Contraindications (Must Not Use)

Diglumet is contraindicated and must not be used by patients who have a known hypersensitivity to its components, or those with severe renal impairment (eGFR less than 30 mL/min/1.73 m^2). Absolute prohibition also applies to patients experiencing acute or chronic metabolic acidosis (including diabetic ketoacidosis), hepatic impairment, or any acute illness that may cause tissue hypoxia, such as acute cardiac or respiratory failure.

Restricted and Special Populations

  • Organ Function: Patients with moderate renal impairment (eGFR 30 to 60 mL/min/1.73 m^2) require conditional use, including specific dose adjustments and heightened monitoring of kidney function.
  • Age: Use is not established and not recommended for children under 10 years of age. While permitted in older adults (65+), use is conditional upon the confirmation of normal renal function.
  • Pregnancy & Lactation: Use during pregnancy is generally not recommended due to insufficient human data. The active substance is excreted in breast milk, requiring a decision to discontinue nursing or the medication.

What should I know about interactions with other medicines?

Diglumet is a combination product containing Dapagliflozin and Metformin. Its interaction profile is primarily defined by the risks associated with the Metformin component.

Medications and Products to Watch For

Classification Interacting Agents (Examples) Interaction Note Regulatory Status
Increased Risk of Lactic Acidosis Iodinated contrast agents (dyes), Carbonic Anhydrase Inhibitors (e.g., topiramate, acetazolamide), excessive alcohol intake. These agents can increase the risk of Metformin-associated lactic acidosis, a serious metabolic complication. Contraindicated or Use with Caution
Reduced Metformin Clearance Drugs that block renal organic cation transporters (e.g., Cimetidine, Ranolazine, Dolutegravir, Vandetanib). These can increase the concentration of Metformin in the blood, raising the risk of lactic acidosis. Use with Caution
Volume and Electrolyte Effects Diuretics (e.g., loop or thiazide types). May increase the risk of volume depletion or low blood pressure (hypotension). Use with Caution
Reduced Dapagliflozin Efficacy Strong Inducers of UGT Enzymes (e.g., Rifampin). These may cause the Dapagliflozin component to be less effective. Monitoring Advised

Procedural Constraints

Radiological procedures that require the use of intravenous iodinated contrast agents mandate the temporary discontinuation of Diglumet prior to or at the time of the procedure. The medication should not be restarted until kidney function is confirmed to be stable. Patients with severe renal impairment must avoid this medicine.

Mechanism of Action

Diglumet is a combination product containing metformin and glibenclamide. The mechanism of action involves the simultaneous modulation of two distinct molecular pathways.

Metformin is an inhibitor of the mitochondrial respiratory chain complex I in hepatocytes. This action reduces cellular ATP levels and increases the AMP:ATP ratio. The subsequent allosteric activation of AMP-activated protein kinase (AMPK) suppresses the transcription of gluconeogenic enzymes like PEPCK and glucose-6-phosphatase through the inactivation of the transcription factor CRTC2. This intracellular cascade results in a systemic reduction of hepatic glucose output. Additionally, metformin inhibits the sodium-glucose cotransporter 1 (SGLT1) in the gastrointestinal tract, decreasing intestinal glucose absorption.

Glibenclamide is a non-selective inhibitor of the ATP-sensitive potassium (K ATP ) channel on the membrane of pancreatic beta-cells. Binding to the sulfonylurea receptor 1 (SUR1) subunit of the K ATP channel induces channel closure, leading to plasma membrane depolarization. Depolarization subsequently triggers the opening of voltage-dependent Ca^2+ channels, resulting in an influx of extracellular Ca^2+ that stimulates the exocytosis of insulin-containing vesicles. This ultimately increases systemic circulating insulin concentration.

Dosage and Administration Information

Administration and Official Use of Diglumet

Diglumet is administered orally as a fixed-dose combination tablet. The use of this medication is governed by a strict, label-based protocol detailing dose initiation, frequency, and specific consumption conditions.


Official Dosing Protocol

Regimen Component Regulatory Principle
Route of Administration Oral only.
Frequency and Timing Typically prescribed for twice-daily use and must be consumed with meals to optimize tolerability.
Initial Dosing Therapy begins with a low starting dose which is then gradually increased, or titrated, over several weeks based on clinical response.
Maximum Dose The prescribed daily dosage should not exceed established maximum limits.

Special Administration Constraints

The drug is intended for chronic, long-term management. Official prescribing instructions mandate careful dose consideration for specific patient populations. Dosing for older adults must be conservative and begin at the lowest available dose. Furthermore, administration is directly constrained by the patient's kidney function (eGFR), with specific dosage modifications or restrictions established for these parameters. If a dose is missed, official guidance is to not take a double dose to compensate, but to resume the standard schedule at the next designated time. Certain modified-release tablets must be swallowed whole and not crushed or chewed.

Recent Clinical Evidence

Research evidence / Overview of studies for Diglumet

Evidence for Use in Type 2 Diabetes Mellitus (T2DM)

This section will summarize the core body of evidence for Diglumet, primarily focusing on findings from Randomized Controlled Trials (RCTs) and systematic reviews that were relevant to the medicine's clinical evaluation in adult T2DM patients.

Comparing the Combination to Single Therapies

Clinical research has evaluated Diglumet (Glibenclamide/Metformin FDC) in adult patients who had not reached their blood sugar targets with single-agent therapy. Studies reported measurements showing shifts in Glycated Hemoglobin (HbA1c) and Fasting Plasma Glucose (FPG) values in these populations, detailing the measurements taken on the combination and the individual monotherapies. These findings describe patterns observed in the studies over defined time intervals, with research also exploring whether the combination was associated with a higher percentage of participants achieving certain pre-defined blood sugar targets.


Study Outcomes and Measures of Glycemic Control

Studies monitored outcomes related to systemic imbalance using markers of blood sugar control. Researchers used HbA1c concentration, a biomarker that is measured to assess long-term average blood sugar levels, as the primary measure. Other outcomes that research examined included Fasting Plasma Glucose (FPG) and post-prandial (after-meal) glucose control. Findings described the changes measured during the study period, illustrating how blood sugar evolved in the observed populations.


What is Still Uncertain About the Research for Diglumet

The existing research on the Diglumet combination has limited information for long-term outcomes specifically related to complex macrovascular outcomes, such as the occurrence of heart attacks or strokes. While the patterns of blood sugar change were observed in some studies, dedicated long-term trials of the combination examining these complex endpoints are not currently available. This research gap means that certainty remains low for predicting long-term outcomes beyond the patterns observed in blood sugar biomarkers.

Frequently Asked Questions (FAQ)

Common questions about Diglumet (FAQ)

Q: Is it true that Diglumet causes [commonly rumored side effect]?

A: Official documents describe adverse reactions based on clinical trial data, categorized by how frequently they were reported. The official list includes commonly reported effects such as gastrointestinal upset and a potential for low blood sugar (Hypoglycemia). If a specific effect is not included in the official documentation, it has not been confirmed through regulated studies.

Q: Does taking Diglumet mean I have to change my diet significantly?

A: Official product information indicates that the tablets are typically administered with meals to help optimize how well the drug is tolerated. Beyond this instruction on consumption timing, the drug label does not typically prescribe a significant change to a person's overall diet.

Q: Why is Diglumet sometimes combined with other medications?

A: Diglumet is approved as a treatment option when blood sugar control is not adequately achieved by using Metformin or Glibenclamide alone (monotherapy). This combination approach is a standard therapeutic strategy when managing Type 2 Diabetes Mellitus that requires additional support.

Q: Are there any common over-the-counter medicines that are known to interact with Diglumet?

A: Regulatory documents list categories of interacting agents, such as certain drugs that contain Carbonic Anhydrase Inhibitors (which may be found in some OTC products) and excessive alcohol. These agents can increase the risk of a serious metabolic complication called Lactic Acidosis. All medication use, including common over-the-counter products, is typically reviewed by a healthcare professional.

Q: How long is Diglumet typically prescribed for?

A: According to official product information, this medication is intended for the chronic, long-term management of the underlying condition it is prescribed for.

Q: Are there any long-term research studies published on the effects of Diglumet?

A: Clinical research includes findings from Randomized Controlled Trials (RCTs) that focus on blood sugar control. Official evidence notes there is limited long-term information specifically related to complex macrovascular events, such as the occurrence of heart attacks or strokes.

Q: What is the difference between the standard and extended-release forms of Diglumet?

A: Diglumet may be available in different tablet forms, including a standard tablet and a modified-release tablet. Official instructions note that the modified-release tablets have a specific constraint regarding administration, such as needing to be swallowed whole without being crushed or chewed.

Q: Are there any food types specifically mentioned as interacting with Diglumet?

A: The regulatory documents do not typically list specific foods that must be chemically avoided when using this medication. The main food-related instruction is to consume the tablets with meals to optimize tolerability, which refers to reducing potential stomach discomfort.

Q: Can I take vitamins or supplements while using Diglumet?

A: Official warnings note that prolonged use of the Metformin component may require periodic monitoring for a potential Vitamin B₁₂ deficiency. Any concurrent use of vitamins, supplements, and herbal products is typically discussed with a healthcare professional.

Q: Does using Diglumet require a special prescription or monitoring program?

A: Diglumet is a prescription-only medication. Official documents mandate specific ongoing monitoring requirements, including the frequent assessment of kidney function, especially in older adults, and periodic testing for Vitamin B₁₂ deficiency.

Q: What is the evidence theme regarding Diglumet's effect on [specific organ/system]?

A: Clinical research themes are primarily focused on measuring glycemic control, which involves using biomarkers like HbA1c (long-term average blood sugar) and Fasting Plasma Glucose (FPG). Effects on other organ systems are summarized within the comprehensive safety profile of the drug.

Q: Is Diglumet generally considered a first-line treatment or a secondary option?

A: Regulatory indications state that Diglumet is used when Type 2 Diabetes Mellitus is not adequately controlled by monotherapy, meaning it is typically considered after single-drug treatment has been trialled.

Q: Can I take other prescription medications with Diglumet, even if they are not listed in the interactions section?

A: Official documents emphasize that the drug interaction lists are not exhaustive and only provide examples. Reviewing all concurrent prescription medications with a healthcare professional is necessary to address potential interactions.

Q: What is the description of the drug's safety classification?

A: Official documents classify adverse reactions by their frequency, such as Common or Very Rare, and detail the warnings and constraints for special populations, including pregnant people, older adults, and those with kidney impairment.

Q: What kind of monitoring is typically done by doctors for people using Diglumet?

A: Monitoring requirements mandated in the official guidelines include the frequent assessment of kidney function (eGFR) and periodic testing for potential Vitamin B₁₂ deficiency.

Q: Is Diglumet described as having a specific interaction with anesthesia before surgery?

A: Regulatory guidance indicates that the medication is typically stopped before major surgery until kidney function is confirmed to be stable. This constraint is in place due to the risk of Lactic Acidosis related to the surgical procedure.

Q: Is Diglumet described as having potential effects on cardiovascular health?

A: Studies examined patients in the context of their diabetes management. Official evidence notes the limited information for long-term outcomes specifically related to complex macrovascular events, such as the occurrence of heart attacks or strokes.

Q: Can Diglumet be used for conditions other than what is listed in the main uses section?

A: Regulatory documents specify that Diglumet is indicated for the management of high blood sugar in adult patients with Type 2 Diabetes Mellitus (T2DM).

Q: What happens if I stop taking Diglumet suddenly?

A: The medication is intended for chronic, long-term management of Type 2 Diabetes. Stopping the medication abruptly without professional guidance is associated with the loss of blood sugar control.

Q: Does Diglumet affect the ability to drive or operate machinery?

A: The drug has the potential to cause Hypoglycemia (low blood sugar), which may impair the ability to drive or operate machinery. Patients are typically advised to be aware of the signs of low blood sugar.

Q: I heard Diglumet can cause weight changes—is this described in official documents?

A: Weight changes are not universally listed as a common adverse reaction in the regulatory documents. The official safety data summarizes effects that were observed in clinical trials, and any specific concerns are typically discussed with a professional.

Q: Is Diglumet habit-forming or described as having potential for dependence?

A: Diglumet is not classified as a controlled substance by government authorities. Official documents do not describe this medication as having the potential for habit formation or dependence.

Q: What happens if a child accidentally takes Diglumet?

A: Official instructions require storing the medication securely out of the reach of children. The consequences of accidental ingestion are addressed in the overdose section of the label, which describes the risk of Hypoglycemia and Lactic Acidosis.

Q: Is the severity of side effects related to the dose of Diglumet?

A: Yes, the risk of certain serious side effects is related to the drug concentration. The dose of the Glibenclamide component affects the risk of Hypoglycemia (low blood sugar), and the concentration of the Metformin component influences the overall risk of Lactic Acidosis.

Q: Does Diglumet have an effect on blood pressure?

A: Regulatory documents note that using Diglumet concurrently with certain medications, such as diuretics (water pills), may increase the risk of volume depletion or low blood pressure (hypotension).

Q: How long does Diglumet stay in the body after the last dose?

A: Official documents describe the half-life of the active ingredients, which is the time it takes for half of the drug to be eliminated from the body. For the Metformin component, this is approximately 6.2 hours.

Q: What should I do if a side effect seems to be getting worse?

A: Official documents advise that patients should seek immediate professional medical attention if symptoms of serious side effects, such as Lactic Acidosis or Severe Hypoglycemia, occur or appear to be worsening.

Q: What is the common reason for stopping Diglumet use?

A: Official documents indicate that the drug must be stopped if a patient develops certain conditions, such as severe renal impairment, as this is a contraindication. Also, common gastrointestinal side effects (e.g., diarrhea, nausea) may sometimes lead to discontinuation.

Q: Does Diglumet affect fertility in men or women?

A: Official regulatory documents provide specific information regarding the drug's use during pregnancy and lactation. Information regarding the effects on fertility in humans is also addressed within the safety profile section.

Q: What are the general expectations for the duration of effects from a single dose?

A: The drug is typically prescribed for twice-daily use. This frequency aligns with the pharmacological duration of action and the measured half-life of its active components to ensure continuous management of blood sugar levels.

Q: Is it possible for Diglumet to stop working over time, according to research?

A: Clinical studies follow the effectiveness of the drug over defined periods. Official documents note that maintaining long-term blood sugar targets may require ongoing monitoring and adjustments to therapy over time.

Q: Can Diglumet cause changes in mood or sleep?

A: Officially documented adverse reactions primarily include headache and dizziness, which are effects on the nervous system. Any effects related to mood or sleep are described by their official frequency classification in the regulatory safety data.

Q: Are there any warnings about combining Diglumet with natural remedies or herbal products?

A: Regulatory documents advise that all concurrent use of herbal products, natural remedies, and supplements is typically reviewed by a healthcare professional. This is to ensure that there are no unforeseen interactions.

How should Diglumet be stored and disposed of?

Official Storage and Handling Requirements

Diglumet tablets must be stored at room temperature, away from both excess heat and environments that could cause freezing. To maintain product integrity, the medication must be protected from light and moisture. The official instructions require keeping the tablets in the original container and ensuring the container is tightly closed when not in use. Crucially, the product must always be stored securely out of the reach of children to prevent accidental ingestion.

Handling Constraint Requirement
Temperature Store at room temperature; do not freeze
Protection Keep away from light, heat, and moisture
Container Store in original container, tightly closed

Disposal Instructions

Unused or expired Diglumet should not be kept. The preferred method for disposal is through an official drug take-back program. If a take-back option is unavailable, regulatory guidance advises mixing the tablets with an undesirable substance (such as used coffee grounds) and sealing the mixture in a bag before discarding in the household trash.

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

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