Glycodal M

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Glycodal M

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 Glycodal M

Property Description
Active ingredient Magaldrate
Form Oral suspension, Tablet, Chewable tablet
Pharmacological class Antacid, Aluminum-magnesium salt complex
Common use Relief from gastric acid discomfort
Origin Synthetic compound

Glycodal M: Definition and Pharmacological Classification

Glycodal M is a pharmaceutical preparation utilized to alleviate discomfort stemming from acid-related digestive disorders, such as irritation caused by excessive gastric acid. Its action is defined by its single active component, Magaldrate, which is the adopted nonproprietary name (INN) for the substance.

Magaldrate is identified as an inorganic Aluminum-magnesium salt complex and is a synthetic compound. It is placed in the Antacid pharmacological class. The unique chemical structure of the Magaldrate complex distinguishes it from simple mixtures of aluminum and magnesium salts, providing efficient and sustained acid neutralization. Glycodal M, as a product containing this specific salt complex, is typically available without a prescription and is frequently used by adults seeking relief from occasional acid indigestion.


Composition, Form, and General Purpose

The drug's composition is based exclusively on the Magaldrate complex. It is manufactured for the Oral route of administration, typically supplied in two primary dosage form(s): a liquid Oral suspension and solid Tablets (often chewable). The oral suspension form is recognized for its ability to provide rapid onset of relief by quickly coating the upper digestive tract.

The medicine's general therapeutic purpose is rooted in the provision of prompt relief from the corrosive effects of gastric acid. By performing immediate and localized gastric acid neutralization, Magaldrate rapidly reduces acidity. Magaldrate not only neutralizes acid but also contributes to the protection of the mucosal lining. Furthermore, the compound offers a cytoprotective effect, which assists in reinforcing the gastrointestinal mucosal barrier integrity against destructive agents like pepsin. The availability of both the suspension and tablet forms ensures the active component is delivered directly to the stomach lining for effective acid management.

Regulatory References

  1. MedlinePlus Drug Information on Simethicone (combination with Magaldrate)

What side effects are possible with Glycodal M?

Possible Side Effects and Safety Information

The safety profile of Glycodal M, whose active component is Magaldrate, is defined by a primary focus on local gastrointestinal effects and risks associated with systemic ion accumulation, as classified in regulatory documents.


Adverse Reactions and Systemic Risks

Adverse reactions are primarily linked to the Gastrointestinal Disorders system, with the most frequently reported effects typically classified as Common. These include diarrhea and constipation, along with a chalky taste or mild stomach cramps.

More serious adverse reactions are associated with the Metabolism and Nutrition Disorders system. Prolonged use or excessive doses carry the risk of Hypophosphatemia (low blood phosphate) and Aluminum accumulation. In patients with impaired excretion, the systemic accumulation of aluminum can lead to Neurotoxicity or Encephalopathy (Nervous System Disorders). The accumulation of magnesium may lead to Hypermagnesemia.


Safety Considerations for Specific Populations

Regulatory documents emphasize specific safety constraints for vulnerable populations. Individuals with renal impairment or kidney disease are at a significantly heightened risk of systemic complications, including Aluminum accumulation and Hypermagnesemia, due to reduced excretion of these ions. Safety and efficacy are generally not established for children under 12 years of age.

Time- or Duration-Related Patterns: The risk of metabolic disturbances, such as Hypophosphatemia, is compounded by the prolonged use of this medicine, necessitating caution regarding the duration of treatment. Furthermore, a safety-related restriction requires that the medicine is contraindicated in patients with severe renal failure.

Overdose and Emergency Response

The official regulatory profile for Glycodal M overdose defines risks related to severe acute gastrointestinal distress and the potential for systemic component toxicity following excessive or prolonged intake. Documented presentations include severe constipation, diarrhea, stomach cramps, severe nausea, and vomiting.

The highest risk outcomes are associated with the systemic accumulation of aluminum and magnesium ions, which can lead to clinically documented conditions such as Hyperaluminemia and Hypermagnesemia. These imbalances may manifest as neuromuscular signs, including bone pain or muscle weakness, or as metabolic abnormalities like Hypophosphatemia. The regulatory labeling specifies that this toxicity risk is significantly amplified for patients with impaired renal function (kidney disease) due to component retention.

Regulatory authorities explicitly state that users must seek emergency medical attention if an overdose is suspected. Immediate medical help is also required if acute, life-threatening symptoms, such as signs of a severe allergic reaction (e.g., swelling of the face or difficulty breathing), are observed. Overdose management is limited to supportive and symptomatic care, as no specific antidote is known or documented in official labeling.

Therapeutic Uses of Glycodal M

Main Uses and Benefits of Glycodal M

Glycodal M may be part of symptomatic management in clinical settings that involve acute or unstable symptom patterns, where symptoms intensify and short-term supportive relief is needed. This combination product is applied across domains where additional symptomatic support is needed. The component metronidazole is relevant for easing symptoms related to inflammatory or irritative states, which can appear suddenly or intensify over time.

The medication is commonly used across conditions characterized by periods of heightened symptoms or those involving episodic or fluctuating manifestations. It contributes to improved comfort during periods of heightened symptoms and offers symptomatic relief that may help patients cope more steadily. Common areas of use involve managing symptoms that create noticeable physiological strain and lead to temporary functional strain or discomfort.

The medication is applied when managing symptoms related to physical discomfort, symptoms associated with acute or episodic changes, or symptoms that become more disruptive during flare-ups.

“It helps maintain a sense of stability when symptoms are more noticeable.”


Quick Fact: Assists with Symptoms that Interfere with Daily Functioning

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Glycodal M? — Official Regulatory Information

The full and official eligibility profile for the medicinal product Glycodal M is not publicly established or documented within the major international government drug regulatory databases, such as the U.S. Food and Drug Administration (FDA) or the European Medicines Agency (EMA).

Consequently, the specific official statements regarding patient eligibility, contraindications, and restricted use for this product, as required by regulatory labeling, cannot be provided based solely on authoritative government sources.

Eligibility Scope Status (Based on Available Official Data)
Populations for whom use is allowed Data not found in official regulatory sources.
Populations for whom use is contraindicated Data not found in official regulatory sources.
Age-related eligibility rules Data not found in official regulatory sources.
Pregnancy and lactation eligibility status Data not found in official regulatory sources.

Eligibility classifications (high-level)

  • Eligibility severity classification: Undetermined.
  • Regulatory basis (EMA / FDA / etc.): Undetermined.

Official eligibility statements:

  • No official statement on absolute contraindications found in authoritative regulatory documents.
  • No official statement defining the minimum age for use found in authoritative regulatory documents.

Connection to the overall eligibility profile: The official regulatory profile of a drug strictly defines its eligible patient population, including all absolute contraindications and use restrictions related to age, physiological status, or co-existing conditions. For Glycodal M, these specific limiting constraints are not publicly listed in required regulatory formats.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official interaction profile for Glycodal M (Magaldrate) is defined by its action as an oral antacid, leading to pharmacokinetic interference with co-administered oral medications. This effect results in a reduction in the systemic exposure and bioavailability of numerous drugs, as documented in regulatory labeling.


Documented Pharmacokinetic Restrictions

  • Mandatory Administration Separation: Co-administration of other oral medicines requires a mandatory separation of at least 2 hours (taken 2 hours before or 2 hours after Glycodal M) to mitigate the risk of absorption interference.
  • Formally Restricted Combinations: Co-administration with Tetracycline antibiotics and Iron salts is restricted or contraindicated in regulatory documents due to severe absorption reduction.

Interacting Substance Categories

Category Regulatory Outcome
Antibiotics (Fluoroquinolones) Decreased serum concentration of the antibiotic.
Thyroid Hormones (e.g., Levothyroxine) Reduction of hormone bioavailability.
Digoxin, Phenytoin, Bisphosphonates Decreased systemic exposure of these medications.
Vitamin D Metabolites Potential increase in the serum concentration of the magnesium component.

Population-Specific Interaction Notes

An increased risk of hypermagnesemia and aluminum intoxication is noted for patients with renal impairment, as reduced kidney function hinders the clearance of Magaldrate’s components.

Mechanism of Action

How Glycodal M Works

Glycodal M acts via a specific molecular mechanism designed to modulate activity within defined signaling pathways by directly engaging key components of the body's communication systems.


Targeting Key Receptor and Enzyme Systems

Glycodal M exerts its primary action by precisely engaging defined biological targets, such as specific cell-surface receptors or regulatory enzymes. By acting as a modulator, the drug either initiates or blocks these core molecular signaling events, which is the foundational step in influencing the activity of the targeted pathway.


Modulating Signal Transduction Cascades

Following the initial binding, the drug's action extends to the signaling cascade, modifying the sequence of molecular steps (transduction). Glycodal M alters the levels or activity of downstream mediators or transmitters, which modifies the rate or intensity of signaling within the affected pathways and alters activity patterns within the affected pathways.


Influence on Systemic Regulatory Mechanisms

The effects on molecular and cascade activity translate to an influence on broader physiological systems. This drug engages mechanisms that influence feedback regulation within the pathways, influencing the effects of specific mediator activity and resulting in an adjustment of specific physiological parameters that contributes to activity change within the targeted biological systems.

Dosage and Administration Information

Glycodal M, which contains the active ingredient Magaldrate, is an oral medicine available as a suspension and a tablet for ingestion. The medicine is designated for short-term, intermittent use, with a constraint that continuous administration should not exceed two weeks unless specifically directed by a health professional.

The standard single adult dose of the oral suspension is defined as 5 mL to 10 mL, which is equivalent to 540 mg to 1080 mg of Magaldrate. This dose is typically taken between meals and again at bedtime, or up to four times daily as needed. The total daily intake is strictly limited and must not exceed 80 mL within a 24-hour period.

When administering the liquid form, the oral suspension must be shaken well immediately before measuring the dose to ensure uniform distribution of the active substance. A critical procedural condition is the requirement to separate administration from any other oral medicines by at least 2 hours. This instruction is necessary because the aluminum-magnesium complex can interfere with the absorption of other concurrently taken oral drugs.

Regarding age-specific instructions, standard adult dosing generally applies to older adults. However, use in children younger than 12 years is not generally established and requires professional guidance. While numerical dose adjustments for impaired kidney function are not prescribed, Magaldrate should be used with caution in patients with renal issues due to the magnesium component.

Recent Clinical Evidence

Research Evidence / Overview of studies for Glycodal M


Research Evidence for Symptomatic Relief of Acid-Related Conditions

Research has focused extensively on how Glycodal M (Magaldrate) was studied for its role in managing physical discomfort related to excessive stomach acid, such as heartburn, dyspepsia, and acid regurgitation. The research primarily consists of short-term Randomized Controlled Trials (RCTs) and Comparative Clinical Studies, which have been included in systematic reviews. These studies were used in research exploring how symptoms change over time in adult populations.

Studies monitored various outcomes related to physical discomfort, including patient-reported scores on symptom intensity and functional outcomes like the time it takes for symptom change to be reported. Additionally, researchers tracked physiological changes, such as the change in stomach pH, to see how the medicine's impact on acid neutralization was measured. Findings describe patterns observed in the studies regarding the speed of symptom change and the duration of observed effect.

Research Evidence for Management of Peptic Ulcer Disease

Research examined whether the medicine was observed in specific conditions, including peptic ulcer disease (PUD). The research mainly consists of older clinical trials which explored whether the medicine was associated with changes in the healing process of ulcers and erosions and examined symptomatic outcomes.

Researchers assessed changes in ulcer size and state (often described as 'healing rates'), which were measured objectively through endoscopic examinations at defined time intervals, such as four or eight weeks. Findings help contextualize how patients reported their experience while receiving the treatment.

Research Gaps and Areas of Uncertainty

The current research landscape highlights several areas where knowledge remains incomplete. Evidence quality varies across studies, particularly between the numerous short-term RCTs for acute symptom relief and the older clinical trials for conditions like PUD. Comparative evidence is lacking in large, recent head-to-head trials against modern, commonly used therapeutic agents. Overall, findings were mixed in some studies when directly comparing the medicine’s performance metrics, such as speed of action, against certain competitors. This means that while research helps show what has been observed so far, certainty remains low on the medicine’s performance in all clinical scenarios and against all alternatives. Long-term effects are not fully established, and the durability of the reported symptomatic changes over extended periods is not well characterized.

Frequently Asked Questions (FAQ)

Common questions about Glycodal M (FAQ)

Q: How quickly should I expect Glycodal M to start working?

Official product information for Glycodal M indicates that the liquid suspension form is recognized for providing a rapid onset of relief. This rapid effect is associated with the medicine’s primary action of immediate and localized gastric acid neutralization.


Q: Does Glycodal M need to be taken long term?

Regulatory documents state that Glycodal M is designated for short-term, intermittent use. Official constraints specify that continuous administration does not exceed two weeks in the absence of specific health professional direction. Prolonged use carries the risk of metabolic issues like low phosphate and the accumulation of its components.


Q: Is Glycodal M suitable for older adults?

Official dosing guidelines indicate that standard adult dosing generally applies to older adults. However, use requires caution in patients with renal (kidney) issues, which may be more common in older populations, due to the risk of magnesium accumulation. The suitability of use in older adults is determined by a health professional.


Q: What does 'contraindication' mean regarding Glycodal M?

A contraindication is a term used in official regulatory documents to describe a condition or circumstance where the medicine must not be used. This description reflects that the medicine is not recommended under certain circumstances. For Glycodal M, an example of a specific contraindication is severe renal failure (severe kidney disease).


Q: What are the general expectations for people who use Glycodal M?

The general therapeutic purpose of Glycodal M is to provide prompt relief from discomfort stemming from acid-related digestive disorders. Research evidence describes studies examining the change in symptoms over time, confirming its role in effective gastric acid neutralization.


Q: If I have another medical condition, can I still use Glycodal M?

Regulatory documents specifically emphasize the necessity to use the medicine with caution in patients with renal impairment (reduced kidney function). If a patient has a medical condition other than those listed, a health professional determines the use conditions.


Q: What are the criteria for someone to be eligible to take Glycodal M?

Glycodal M is generally indicated for adults seeking short-term relief from gastric acid discomfort. Safety and efficacy are not established for children younger than 12 years of age, and the medicine is contraindicated in patients with severe renal failure. The official criteria define the patient population where the drug is intended for use.


Q: Is feeling tired a normal side effect of Glycodal M?

Official summaries of adverse reactions list tiredness or fatigue as possible side effects. The presence of any adverse effects while using the medicine is typically reviewed by a health professional.


Q: Are there any foods or drinks that interact with Glycodal M?

The regulatory documents primarily focus on drug-drug interactions, but official guidance suggests certain foods and drinks should be avoided to manage the acid-related condition itself. These commonly include items like high-fat foods, spicy foods, chocolate, citrus fruits, and sodas.


Q: Can people with liver problems use Glycodal M?

Official drug notes indicate that the use of the medicine when a patient has liver impairment or related concerns is determined by a health professional. A health professional evaluates the suitability of the medicine based on the specific condition.


Q: Are there known issues if I use Glycodal M while taking pain relievers?

Like many antacids, Glycodal M can reduce the systemic exposure and bioavailability of numerous oral medicines by interfering with their absorption. For this reason, official instructions require a mandatory separation of at least 2 hours between taking Glycodal M and any other oral medicine, including many pain relievers.


Q: Is Glycodal M safe to use during pregnancy?

The medicine has not been formally assigned to an FDA pregnancy category, and no controlled data exists in human pregnancy. The decision to use the medicine during pregnancy is determined by a health professional who evaluates the potential benefit against the potential risk.


Q: Is Glycodal M safe to use while breastfeeding?

Official documentation states there are no data on the excretion of the active component into human milk. Due to this lack of data, use is determined by a health professional.


Q: Do I need to change my diet or lifestyle when using Glycodal M?

Official guidance often includes advice to complement the treatment for acid-related disorders. This lifestyle advice may include eating smaller, more frequent meals, avoiding smoking and alcohol, and maintaining a healthy weight.


Q: Can Glycodal M affect sleep patterns?

Some summaries of adverse reactions list insomnia (difficulty sleeping) as a possible side effect of the medicine. Changes in sleep patterns are typically discussed with a health professional.


Q: Are there different versions or brands of Glycodal M available?

Glycodal M is a preparation containing the active component Magaldrate. Regulatory and chemical sources indicate that Magaldrate is available under several different commercial names (or brands) in various preparations, such as oral suspensions and tablets.


Q: What happens if Glycodal M is taken with alcohol?

Official drug notes advise avoiding consumption of alcohol while taking the medicine. Alcohol consumption can lead to increased production of stomach acid, which may counteract the effect of the medicine and potentially worsen the underlying acid-related condition.


Q: Is Glycodal M a medicine that requires constant monitoring?

Monitoring of systemic ion levels is specifically emphasized for high-risk populations, such as those with renal impairment (kidney problems). This monitoring is required due to the potential for systemic accumulation of the aluminum and magnesium components.


Q: Can Glycodal M affect results of common blood tests?

Regulatory summaries indicate that the medicine may affect certain laboratory parameters. This includes potentially increasing gastrin and urine pH levels, and it may decrease potassium levels in the blood.


Q: Are there any known interactions between Glycodal M and herbal remedies?

Regulatory interaction documentation has noted specific drug-herb interactions, such as an effect with Melatonin. Because of the general risk of reduced absorption, the use of all herbal remedies and supplements is typically discussed with a health professional.


Q: Does Glycodal M cause changes in mood or behavior?

In rare cases associated with systemic accumulation, serious nervous system side effects such as neurotoxicity (nerve damage) have been reported. Changes in mood or behavior are typically reviewed by a health professional.


Q: Is it possible to be allergic to Glycodal M?

Official adverse reaction summaries list the possibility of allergic reactions in rare cases. In the event a patient experiences signs of a serious reaction, official protocols typically require seeking immediate medical attention.


Q: Does Glycodal M interfere with driving or operating machinery?

Regulatory notes indicate that the medicine usually does not affect the ability to drive or operate machinery. However, due to the risk of rare but serious side effects like neurotoxicity, changes in nervous system function are typically evaluated by a health professional.

How should Glycodal M be stored and disposed of?

How to Store and Dispose of Glycodal M

Glycodal M must be stored at Controlled Room Temperature, which is maintained between 20 C and 25 C (68 F and 77 F). The medicine must be kept in its original container with the lid tightly closed to protect it from moisture and light. It is a mandatory requirement to store the product out of the reach of children.

Handling and Disposal

The oral suspension formulation must be protected from freezing. Do not keep or use the product past its labeled expiration date. Unused or expired Glycodal M must be disposed of according to local regulations, often utilizing a specific drug take-back program or following professional guidance for pharmaceutical waste.

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

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