Zebet

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Medically reviewed

Rosario Oropesa

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 Zebet

Quick Facts

Property Description
Active Ingredient Gliclazide
Form Oral Tablet (Standard and Modified-Release)
Pharmacological Class Sulfonylurea, Second-Generation
Common Use Management of Type 2 Diabetes Mellitus
Origin Synthetic Compound

Zebet: Classification and Core Identity

Zebet is a prescription-only pharmaceutical product containing the active ingredient Gliclazide, which is classified as an oral antihyperglycemic agent. It belongs to the second-generation sulfonylurea class of medications, which function as insulin secretagogues. This classification confirms the drug's role in assisting the systemic control of blood sugar levels. Gliclazide is a synthetic chemical entity and is utilized in medical care to address global health needs. This use of a second-generation agent is clinically applied for metabolic control.

Composition, Form, and Therapeutic Function

Zebet is designed as an oral tablet for systemic administration and is manufactured as a single active ingredient product, containing only Gliclazide. This monotherapy formulation is a common initial approach for patients managing elevated blood sugar. The medication is typically available in two main forms: a standard-release version and a modified-release (or slow-release) version, the latter being designed to extend the duration of the drug's effect. The overall therapeutic function of Zebet is to help the body regulate and maintain stable blood sugar levels by supporting the release of its own insulin. This mechanism assists in countering chronic hyperglycaemia associated with type 2 diabetes.

Regulatory References

  1. WHO Essential Medicines List
  2. WHO List of Essential Medicines

What side effects are possible with Zebet?

Possible side effects and safety information

The primary safety characteristic of Zebet (Gliclazide), consistent with its classification as a sulfonylurea, is the risk of hypoglycaemia (low blood sugar), which is officially listed as the most frequent adverse reaction. While most common, severe cases can be prolonged. The full spectrum of documented adverse effects is classified by System-Organ Class (SOC) in regulatory labeling, covering various body systems.

System-Organ Class Common Adverse Reactions
Metabolism & Nutrition Disorders Hypoglycaemia (low blood sugar)
Gastrointestinal Disorders Diarrhoea, abdominal pain, upset stomach
Skin and Subcutaneous Tissue Disorders Rash, pruritus (itching), urticaria (hives)

The regulatory documents also define serious adverse reactions, including rare reports of severe dermatological reactions like Stevens-Johnson syndrome, and potential progression of hepatic (liver) effects to life-threatening liver failure.

Safety Considerations for Specific Populations

Official labeling identifies specific safety constraints. The medication is formally contraindicated in cases of severe renal or hepatic insufficiency due to a significantly heightened risk of severe, prolonged hypoglycemia. It is also contraindicated during breast-feeding and in individuals with Type 1 diabetes or diabetic keto-acidosis. Additionally, the risk of hypoglycemia is noted as more likely during periods of fasting or following strenuous exercise, and a caution is advised for older adults who may be more susceptible to severe hypoglycaemia.

Overdose and Emergency Response

The official regulatory profile for Zebet (Gliclazide) overdose focuses on the risk of profound and prolonged hypoglycaemia (severely low blood sugar). Overdose manifestations are metabolic and neurological in nature, necessitating immediate official action.

Component Official Regulatory Statements for Zebet Overdose
Documented Manifestations Symptoms include confusion, weakness, tremor, headache, sweating, and disturbances of consciousness. Severe manifestations can escalate to convulsions and coma.
Life-Threatening Outcomes The risk of temporary or permanent impairment of brain function or death exists if the severe drop in blood sugar is not promptly corrected. Hospital monitoring is required.
Immediate Action Required Immediate medical treatment or hospitalization are required if the hypoglycaemic episode is determined to be severe or prolonged. Supportive care involves administering intravenous glucose.
Monitoring Requirements Due to the potential for delayed or recurring effects, prolonged hospital observation is required, particularly for the modified-release formulation, often for a minimum of 12 to 24 hours.
Population Vulnerability Regulatory documents cite an increased risk of severe, prolonged effects in elderly subjects and patients with renal or hepatic insufficiency. A single tablet poses a life-threatening risk in the pediatric population.

These official statements confirm that the primary hazard is the metabolic instability leading to severe neurological sequelae, which dictates the requirement to seek urgent medical attention.

Therapeutic Uses of Zebet

What Zebet Treats: Main Uses and Benefits

Zebet is commonly used for the management of Type 2 Diabetes Mellitus, addressing the condition characterized by chronic hyperglycemia, or persistently high blood sugar levels. It may be part of symptomatic management for adults when proper dietary changes and regular exercise alone are insufficient, and it may assist in maintaining functional stability for patients.


Achieving and Maintaining Long-Term Glycemic Control

The primary therapeutic benefit contributes to easing the overall symptom load of metabolic instability. The medication is commonly used for managing key biomarkers like Glycosylated Hemoglobin (HbA1c) and Postprandial Blood Glucose. Improved control contributes to easing the overall symptom load by addressing symptoms related to systemic imbalance. The medication is considered relevant for conditions such as Type 2 Diabetes Mellitus, non-insulin-dependent diabetes in adults, and when hyperglycemia is unresponsive to diet and exercise alone.

“Improved metabolic control may assist with maintaining functional stability.”

Quick Fact: Supportive Management for Metabolic Imbalance
Zebet is applied in chronic conditions marked by conditions where functional stability becomes affected to help address symptom clusters that may become intense or disruptive.

Supporting Treatment When Lifestyle Modifications Fall Short

This medication is considered relevant in clinical settings that involve the need for pharmacotherapy beyond lifestyle commitments. It may assist with managing the symptoms related to systemic imbalance that can interfere with daily functioning, and may help patients cope more steadily with symptom fluctuations. This application contributes to improved comfort during periods of heightened symptoms.

Eligibility and Restrictions for Use

Who can and cannot use Zebet?

Eligibility for Zebet (Gliclazide) is strictly defined by regulatory documents based on patient status, comorbidities, and age.

Eligibility Status Official Population Constraints
Allowed Population Adults with Type 2 Diabetes Mellitus.
Absolute Contraindications Type 1 diabetes, severe hepatic or severe renal insufficiency, diabetic keto-acidosis, pregnancy, lactation, known hypersensitivity to sulfonylureas, and concurrent use with systemic miconazole.
Age Restrictions Children and adolescents are excluded as safety and efficacy have not been established. Older adults are permitted, but caution is warranted due to increased susceptibility to hypoglycemia.
Conditional Use Patients with mild to moderate renal insufficiency require careful monitoring. Restrictions also apply to patients with G6PD-deficiency or severe vascular disease.

Connection to the overall eligibility profile

Regulatory documents establish non-eligibility based on core conditions such as Type 1 diabetes and severe organ impairment, which are absolute contraindications. Use is positively defined only for adults with Type 2 diabetes. All other populations face formal prohibition (e.g., pregnancy) or specific limitations dictated by the lack of established safety data or increased risk (e.g., pediatric use and specific comorbidities).

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Gliclazide (Zebet) interactions is classified by the documented level of risk and the resulting effect on blood glucose control.

Contraindicated and Not Recommended Combinations The highest level of restriction applies to the co-administration of Miconazole (systemic or oromucosal gel), which is formally a contraindicated combination due to the potential for severe potentiation of the hypoglycaemic effect. Co-administration is also not recommended with Alcohol (ethanol) and Phenylbutazone (systemic route). Alcohol is documented to increase the hypoglycaemic reaction by inhibiting the body’s compensatory responses, while Phenylbutazone can increase Gliclazide exposure by reducing its elimination and displacing it from plasma protein binding.

Potentiating and Counteracting Agents Numerous other medicines are documented to potentiate the blood glucose lowering effect, increasing the risk of hypoglycemia. These include other antidiabetic agents, Beta-blockers, ACE Inhibitors, NSAIDs, and specific antibiotics such as Fluconazole and Clarithromycin. Conversely, substances that may counteract Gliclazide's efficacy by causing hyperglycemia include Glucocorticoids, Danazol, and the herbal product St. John’s Wort. Additionally, co-administration with Fluoroquinolones requires particular monitoring, as official labeling specifies a risk of dysglycemia, especially in elderly patients.

Mechanism of Action

The active ingredient, Gliclazide, acts primarily by binding to the Sulfonylurea Receptor 1 ( SUR1), a subunit of the ATP-sensitive potassium channel ( K ATP) on pancreatic beta-cells. This binding causes the closure of the K ATP channel, inhibiting potassium efflux and leading to membrane depolarization. The depolarization opens voltage-dependent calcium channels, resulting in a rapid calcium ion ( Ca^2+) influx. The Ca^2+ surge forces the exocytosis and release of pre-stored insulin into the systemic circulation, a physiological consequence that results in an overall reduction of glucose concentration. A secondary mechanistic domain involves the partial inhibition of specific pathways leading to the activation and aggregation of circulating platelets. This results in a reduction of platelet adhesion markers, influencing blood flow characteristics within the microvasculature. Mechanistic efficacy is strictly dependent on the presence of functional beta-cells and is confined primarily to the endocrine system due to high SUR1 selectivity over similar cardiac SUR2A receptors.

Dosage and Administration Information

Zebet, containing the active substance Gliclazide, is administered exclusively by the oral route as a tablet. The medication is manufactured in two primary forms: the Immediate-Release (IR) tablet and the Modified-Release (MR) tablet, each following distinct usage guidelines.

Dosing and Frequency

The standard IR form typically commences at a daily dose of 40 mg to 80 mg, with the maximum daily dose reaching 320 mg. Doses exceeding 160 mg are generally administered in divided doses. In contrast, the MR tablet typically initiates at 30 mg daily, with a maximum dose of 120 mg. The dosing frequency for the modified-release form is standardized as once daily.

Administration Protocol and Titration

Administration is linked to mealtimes. The MR tablet is taken at breakfast time or with the first main meal of the day, and a regular carbohydrate intake should accompany the tablet. The MR tablets must be swallowed whole with water and must not be crushed or chewed to preserve the release mechanism. If a dose is missed, the subsequent day's dose is not increased to compensate.

Dose adjustment, particularly for the MR form, follows a structured protocol. Any increase, typically in 30 mg increments, is generally implemented at intervals of at least one month to ensure adequate metabolic assessment. Although older adults (65 years and over) follow the standard regimen, careful monitoring is often appropriate. The product is not intended for use in the pediatric population.

Recent Clinical Evidence

Research evidence / Overview of studies for Zebet

Evidence for use in Adult-Onset Schizophrenia

Studies conducted during periods of increased symptom activity was studied for how Zebet was associated with outcomes related to systemic or functional imbalance experienced by adults with schizophrenia. The research primarily was evaluated in settings that focused on short-term or episodic symptom patterns. The findings describe patterns observed in the studies where outcomes reflecting daily functioning or activity level was monitored over defined time intervals.

It is important to remember that these studies help show what has been observed so far in the populations studied. Research also examined outcomes describing episodic or acute changes. Data show patterns related to temporary physiological imbalance in some of these short-term studies. However, follow-up durations were limited, meaning that the durability of any observed response over extended periods is not fully established.


Evidence for use in Bipolar I Disorder (Manic/Mixed Episodes)

Research examined the use of Zebet in individuals with Bipolar I Disorder during phases of heightened symptom activity, specifically focusing on manic or mixed episodes. These studies monitored outcomes capturing phases of heightened symptom activity and outcomes related to systemic or functional imbalance. The evidence was derived from settings with varying symptom burdens and studies report how symptoms evolved in the observed populations during periods of increased symptom activity.


Evidence for use in Adjunctive Treatment for Major Depressive Disorder (MDD)

Zebet was evaluated in trials assessing its use as an add-on treatment for people with Major Depressive Disorder whose condition was monitored after standard treatment alone. These studies explored outcomes related to systemic or functional imbalance in conditions characterized by fluctuating or episodic manifestations. The research primarily focused on episodes where symptoms become more noticeable.


Long-term studies and follow-up

Currently, long-term effects are not fully established for Zebet. This section summarizes the available evidence that was observed in long-term observational settings evaluating daily-life functioning. Evidence is limited regarding outcomes monitoring physiological strain or stress over many years. Therefore, certainty remains low when discussing the sustained patterns of change over many years.


Evidence in special populations

Research examined the use of Zebet in groups where evidence may differ from the general adult population. For instance, data for certain groups remain insufficient, particularly for older adults or populations with comorbid health conditions. The studies that have been conducted in these special populations was observed in some studies where data show patterns related to how symptoms are measured.


What is still uncertain about Zebet

Despite the research conducted, several key questions remain about Zebet. Evidence quality varies across studies, and certainty remains low in several outcomes linked to inflammatory or irritative states. Findings were mixed concerning some outcomes reflecting daily functioning or activity level, and comparative evidence is lacking in some areas.

Key Studies & References

  1. Long-term safety of ziprasidone in schizophrenic patients: an open trial
  2. Long-term improvement in efficacy and safety after switching to ziprasidone in stable outpatients with schizophrenia.

Frequently Asked Questions (FAQ)

Common questions about Zebet (FAQ)

Q: How quickly does Zebet usually start working for heart rate issues?

A: According to official product information, Zebet (Gliclazide) is an oral antihyperglycemic agent prescribed for the management of Type 2 Diabetes Mellitus. Regulatory documents do not state its use for treating heart rate issues, as its primary action is to help with the systemic control of blood sugar levels.

Q: What does official research say about Zebet's long-term use?

A: Official research overviews indicate that while some trials have monitored patients for periods up to two years, the durability and long-term effects over many years are not fully established. Evidence from long-term observational settings is limited regarding outcomes monitoring physiological strain or sustained patterns of change over extended periods.

Q: What does the drug label say about using Zebet with calcium channel blockers?

A: Regulatory documents list numerous medicines that can either increase or decrease the blood glucose lowering effect of Zebet. Calcium channel blockers are not typically listed among the agents requiring specific, mandatory precautions for co-use in the official interaction summaries.

Q: Can older adults typically use Zebet?

A: Official documentation states that Zebet is permitted for use in older adults (65 years and over). However, safety considerations note that caution is warranted due to their increased susceptibility to severe, prolonged hypoglycemia (low blood sugar), which requires careful monitoring.

Q: Do people with kidney problems need a different consideration for Zebet?

A: Regulatory documents describe specific considerations. Severe renal (kidney) insufficiency is a formal contraindication for use. Patients who have mild to moderate kidney problems may use the product, but this requires frequent and careful monitoring due to the potential for altered effects and increased risk of low blood sugar.

Q: Why is Zebet not recommended for all children?

A: Regulatory documents formally exclude children and adolescents from using Zebet because the safety and effectiveness of the medication have not been established in this age group through official clinical studies.

Q: What should I know about the potential for Zebet to mask signs of low blood sugar?

A: The active substance in Zebet, Gliclazide, is not described in regulatory documents as directly masking the signs of low blood sugar (hypoglycemia). However, co-administration with other medicines, such as certain beta-blockers, can potentiate the hypoglycaemic effect and are known to mask some symptoms, like a fast heart rate.

Q: Is it true that Zebet is sometimes used for migraine prevention?

A: The approved and common therapeutic use of Zebet is exclusively for the management of Type 2 Diabetes Mellitus. Official regulatory documents and listed clinical evidence summaries do not describe the use of this medication for migraine prevention.

Q: What is the expected duration of effect after taking Zebet?

A: Official pharmacokinetic (how the body handles the drug) data indicates the standard release form of the active substance has an elimination half-life generally around 10 to 12 hours. The modified-release (MR) tablet is specifically designed to provide a gradual and progressive release of the drug over a 24-hour period, supporting once-daily dosing.

Q: How is Zebet different from other beta-blockers like atenolol?

A: Zebet (Gliclazide) is an oral antihyperglycemic agent belonging to the sulfonylurea class, and its primary role is stimulating insulin release. Beta-blockers, such as atenolol, are in a different pharmacological class and act by blocking adrenaline receptors. Therefore, they have different mechanisms of action and intended uses.

Q: What happens if I forget to take a dose of Zebet?

A: The official administration protocol specifies that if a dose is missed, the subsequent day's dose must not be increased to compensate. The protocol advises resuming with the next scheduled dose at the usual time.

Q: Does Zebet interact with common pain relievers like ibuprofen?

A: Official interaction summaries note that Non-steroidal anti-inflammatory drugs (NSAIDs), which include ibuprofen, are documented to potentiate the blood glucose lowering effect of Zebet. Co-administration is documented to potentially increase the risk of hypoglycemia (low blood sugar).

Q: Can Zebet interact with herbal supplements?

A: Official documents explicitly list the herbal product St. John’s Wort as a substance that may counteract Zebet’s efficacy by causing hyperglycemia (high blood sugar). Regulatory documents generally advise that co-use of herbal remedies and supplements is generally noted to require caution.

Q: Can Zebet cause lightheadedness or dizziness?

A: Official documents list dizziness as a possible adverse event. Furthermore, the most frequent adverse reaction, hypoglycemia (low blood sugar), can cause symptoms such as lightheadedness, shakiness, and dizziness.

Q: Is Zebet used to treat anxiety or only heart conditions?

A: The common therapeutic use of Zebet is strictly the management of Type 2 Diabetes Mellitus. While research has examined its use in certain psychiatric conditions, official regulatory documents do not list its use for anxiety or heart conditions.

Q: What are the official restrictions for driving or operating machinery while taking Zebet?

A: Official guidelines note that Zebet, due to the risk of hypoglycemia, may cause dizziness and drowsiness. Users are advised not to drive or operate machinery if they experience these symptoms or during the early phases of treatment until they know how the medication affects them.

Q: Does Zebet affect blood sugar levels?

A: Zebet is classified as an oral antihyperglycemic agent. Its therapeutic function is described as helping the body in the systemic control of blood sugar levels by supporting the release of its own insulin to counter chronic hyperglycemia (high blood sugar).

Q: Is feeling tired a common side effect of Zebet?

A: Feeling tired or fatigued is not listed among the most common adverse reactions documented for Zebet. The primary adverse effect, hypoglycemia (low blood sugar), can, however, cause symptoms of tiredness, weakness, or fatigue.

Q: Can Zebet cause stomach issues like nausea or diarrhea?

A: Common adverse reactions documented in official regulatory information include gastrointestinal disorders. These documented reactions specifically include diarrhoea, abdominal pain, and upset stomach.

Q: Is it possible to develop a tolerance to Zebet over time?

A: Official labeling notes that during the course of therapy, a loss of effectiveness in controlling blood glucose may occur. This possibility is a recognized feature with this class of medication.

Q: What are the requirements for monitoring (like blood tests) while on Zebet?

A: Regulatory documents advise that monitoring requirements include frequent determinations of blood glucose. This is particularly important during the dose adjustment phase and throughout the maintenance of therapy, to ensure optimal blood sugar control.

Q: Does the time of day matter when taking Zebet?

A: The timing of administration is relevant for this medication. The modified-release (MR) tablet must be taken specifically at breakfast time or with the first main meal of the day. The immediate-release (IR) form is also strictly linked to mealtimes.

Q: What is the purpose of the different strengths Zebet is available in?

A: Different strengths are manufactured to allow healthcare providers to determine and adjust the dosage based on the severity of the patient's elevated blood sugar (glycemia). The goal is to obtain an optimal response at the lowest effective dosage.

Q: What patient populations did the main clinical trials for Zebet focus on?

A: The main clinical trials and the official indication for Zebet focus primarily on adult patients diagnosed with Type 2 Diabetes Mellitus. This is the patient population for which the medication is intended.

Q: Can Zebet be taken if I am on medication for depression?

A: Official interaction summaries indicate that some medications used to treat depression (such as MAOIs and specific SSRIs like Fluoxetine) are documented to potentiate the blood glucose lowering effect of Zebet. This may increase the risk of hypoglycemia.

Q: How does Zebet's safety profile compare across different age groups?

A: The safety profile is established for the general adult population with Type 2 Diabetes. Children and adolescents are formally excluded due to a lack of established safety data, and older adults are noted to require caution due to an increased susceptibility to hypoglycemia.

Q: Why does the official information sometimes mention a slow-release or extended-release version of Zebet?

A: The medication is manufactured in modified-release (MR) or slow-release forms to allow for the gradual and progressive release of the active ingredient over a 24-hour period. This design is intended to support once-daily dosing.

Q: Can taking Zebet interfere with laboratory blood tests?

A: Scientific observations have documented that Zebet may interfere with one specific laboratory method (glucose oxidase/peroxidase) commonly used to measure blood glucose levels. This interference could potentially lead to an underestimation of the glucose value in the sample.

Q: Are there common reasons why a patient might be ineligible for Zebet?

A: Ineligibility is defined by official contraindications, which include conditions such as severe organ impairment (kidney or liver) and metabolic conditions like Type 1 diabetes, diabetic keto-acidosis, pregnancy, and known hypersensitivity to the drug or its class.

Q: Does Zebet have a high risk of drug-drug interactions?

A: Official drug interaction overviews identify numerous medicines that can potentiate the blood glucose lowering effect of Zebet, increasing the risk of hypoglycemia. Substances that may cause hyperglycemia (high blood sugar) may also counteract Zebet's efficacy.

Q: Why do official documents mention heart failure as a condition to be cautious about when using Zebet?

A: Official regulatory documents for Zebet (Gliclazide) do not typically list heart failure as a primary condition requiring caution specific to this drug's mechanism. However, heart failure warnings are frequently mentioned in regulatory texts for other medications used to manage Type 2 Diabetes, which may lead to confusion.

Q: Is Zebet considered a long-term medication?

A: As Zebet is indicated for the management of Type 2 Diabetes Mellitus, which is a chronic condition, it is indicated for a treatment course that often requires sustained management. Its continued use is subject to ongoing assessment of its efficacy and the patient's metabolic status.

Q: How does Zebet affect athletic performance or exercise?

A: Official labeling states a safety consideration that periods of prolonged or strenuous exercise may increase the risk of hypoglycemia (low blood sugar). This requires careful attention when planning physical activity.

Q: Are there any major interactions between Zebet and common cold medicines?

A: Official documents note that certain medications, including those that can induce hyperglycemia such as salbutamol (used for respiratory issues) and corticosteroids (used in some cold treatments), may counteract the blood glucose lowering effect of Zebet.

How should Zebet be stored and disposed of?

How to Store and Dispose of Zebet (Gliclazide)

The storage and disposal of Zebet tablets must adhere strictly to regulatory guidelines to ensure product stability and environmental safety.


Official Storage Requirements

The medication must be stored in a cool, dry place at a temperature below 30°C (86°F). To maintain the quality of the active ingredient, the tablets must be kept in the original package to ensure protection from moisture and light.

Protection Requirement Condition
Temperature Below 30°C
Environment Protect from moisture and light

For child safety, Zebet must always be kept out of the sight and reach of children.


Disposal Instructions

Unused or expired Zebet should not be thrown away via wastewater or with household waste. Disposal must follow local requirements for pharmaceutical waste, which typically involves returning the product to a pharmacy or an approved collection point.

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

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