Dijex

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Dijex

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 Dijex

Quick Facts

Property Description
Active ingredients Aluminium Hydroxide, Magnesium Hydroxide, Simeticone
Form Oral Suspension or Oral Liquid
Pharmacological class Antacid, Anti-flatulence Agent (Antigas)
Common purpose Relief from gastric acidity and excessive gastrointestinal gas
Origin Inorganic and Synthetic

What Type of Medicine is Dijex?

Dijex is fundamentally defined as a polycomponent drug belonging to the general classification of Gastrointestinal Agents, functioning specifically as a combination of Antacid and Anti-flatulence Agent pharmacological classes. This designation confirms the product is structurally engineered to provide dual relief simultaneously. The combination is used in the management of acute upper gastrointestinal distress. The formulation is primarily designed for oral route of administration and operates via local action, exhibiting negligible systemic absorption of its core components, which is a key differentiating feature from systemically acting agents.

Composition and Form: The Dijex Active Ingredients

The formulation's unique therapeutic profile stems from its three primary active ingredients: the inorganic mineral salts Aluminium Hydroxide and Magnesium Hydroxide, coupled with the synthetic polymer Simeticone. This combination is strategically differentiated in its physical form as an oral suspension or oral liquid, often incorporating the stable form of Aluminium Hydroxide Gel to ensure a uniform consistency. The combination of Aluminium Hydroxide and Magnesium Hydroxide is standard in pharmaceutical practice, with the antacid components providing the immediate acid neutralization effect.

What is the General Purpose of This Combination Product?

The general purpose of this specific combination product is to mitigate discomfort associated with two concurrent issues: the chemical irritation resulting from excess gastric acidity and the physical pressure linked to excess gastrointestinal gas or flatulence. Simeticone functions as a non-systemic surfactant, decreasing the surface tension of gas bubbles to facilitate their elimination from the gastrointestinal tract, a mechanism for anti-flatulence action. This design intentionally links the immediate acid neutralization with a physical anti-foaming action in a single preparation, providing an integrated approach for broad symptomatic relief.

Regulatory References

  1. Aluminum Hydroxide and Magnesium Hydroxide: MedlinePlus Drug Information
  2. Simethicone - StatPearls - NCBI Bookshelf - NIH

What side effects are possible with Dijex?

Possible Side Effects and Safety Information

The safety profile of this medicine is described in official regulatory documents based on the officially classified adverse reactions and population-specific considerations. These effects are organized by frequency and the body system affected.

Official Adverse Reactions Scope

Category Description
Key Side Effects Gastrointestinal effects (Diarrhoea, Constipation), Electrolyte Imbalances (Hypermagnesemia, Hypophosphatemia), Hypersensitivity Reactions.
Frequency Classification Uncommon (occurring in fewer than 1 in 100 people): Diarrhoea (linked to magnesium) and Constipation (linked to aluminum). Very Rare (occurring in fewer than 1 in 10,000 people): Hypermagnesemia, particularly in specific patient groups.
Body Systems Affected Gastrointestinal Disorders, Metabolism and Nutrition Disorders, Immune System Disorders, and Musculoskeletal System (related to long-term electrolyte imbalance).

Serious Adverse Reactions

The regulatory label documents serious adverse reactions, including severe hypersensitivity reactions such as anaphylaxis. Other serious reactions are primarily associated with high-dose or prolonged exposure in vulnerable populations, specifically the risk of intestinal obstruction or ileus (in older adults) and the rare risk of encephalopathy or osteomalacia (bone softening) secondary to severe hypophosphatemia or metal accumulation.

Safety Considerations for Specific Populations

Official documents emphasize strict safety considerations for certain patient groups. Individuals with severe renal impairment (kidney failure) are at risk of accumulation of both aluminum and magnesium, which can lead to serious long-term effects on the nervous system and blood. Use is restricted or contraindicated in patients with severe hypophosphataemia due to the phosphate-binding action of the aluminum component. Safety notes also advise caution for older adults due to the increased potential for bowel obstruction with high doses.

Overdose and Emergency Response

Overdose Manifestations and Risks

Regulatory documents define an overdose of this product primarily by the consequences of high exposure to its metal salts. Initial presentations often involve severe gastrointestinal effects such as diarrhea, vomiting, and abdominal pain. Of greater concern is the potential for severe hypermagnesemia, which is officially documented as leading to systemic toxicity. Manifestations of severe hypermagnesemia include profound hypotension, drowsiness, depressed reflexes, muscle weakness, and can progress to life-threatening outcomes such as cardiac arrhythmias and respiratory depression. The risk of severe toxicity is particularly noted in patients with impaired renal function due to the inhibited clearance of the metal salts.

When to Seek Immediate Medical Help

The official guidance mandates that any suspected overdose requires immediate medical attention. This urgent response is necessary to manage the risk of severe systemic toxicity, which is classified as potentially life-threatening. In such severe scenarios, hospital monitoring is required, including continuous assessment of electrolyte levels and renal function. While no specific antidote is known for the combination, intravenous calcium gluconate is the documented intervention to reverse the effects of severe hypermagnesemia. Management consists of mandated symptomatic and supportive treatment to stabilize the individual and may include procedures like hemodialysis for the most severe cases.

Therapeutic Uses of Dijex

What Dijex Treats: Main Uses and Benefits

This medication is used in situations involving certain distressing symptoms like digestive burning. It is commonly used to help with symptoms associated with excess stomach acid, indigestion (dyspepsia), and gas-related bloating. It helps address symptom clusters that may become intense or disruptive, such as heartburn, acid regurgitation, fullness, heaviness, and abdominal distension.

It is applied in contexts where additional symptomatic support for short-term relief is needed, often during phases when symptoms become more noticeable after meals or during acute episodes of discomfort. It provides support that helps ease the overall symptom burden and may assist with maintaining functional stability when symptoms escalate temporarily.

“This medication is applied across domains where additional symptomatic support is needed for trapped gas and related symptoms.”

This supportive relief contributes to easing the overall symptom load during periods of heightened symptoms.


Summary: Symptomatic Relief It is commonly used across conditions characterized by episodic symptom patterns of acid reflux and gas, where functional stability may be affected.


Regulatory References

  1. DailyMed/NIH Listing on Antacids and Simethicone

Eligibility and Restrictions for Use

This information describes the official population eligibility rules for this combination product, as stated in regulatory documents.

Populations for Whom Use is Contraindicated

Use of this medicine is absolutely contraindicated (must not be used) in several specific patient groups:

  • Patients suffering from kidney failure (renal failure/insufficiency).
  • Patients with documented hypophosphataemia (low phosphate levels).
  • Patients who are severely debilitated.
  • Individuals with known hypersensitivity to any of the active substances or excipients.

Eligibility Based on Age and Condition

The medicine is generally approved for use in adults and adolescents (typically 12 years and older). Use is officially not recommended for self-medication in children under 12 years of age.

Condition-Specific Restrictions: Patients with any degree of renal impairment require extreme caution due to the risk of systemic buildup of Aluminium and Magnesium, and prolonged use must be avoided. Older adults require caution due to an increased risk of intestinal obstruction.

Pregnancy and Lactation: Safety has not been established during pregnancy, and use is restricted to cases where potential benefits outweigh the potential risks. Caution is officially advised during lactation.

What should I know about interactions with other medicines?

Dijex (which contains hyoscyamine and phenyltoloxamine) may interact with numerous other medicines by increasing the risk of side effects from both products, primarily due to combined effects on the central nervous system or the body's internal systems. Caution is advised when used with medicines that cause drowsiness, such as narcotic pain medicines (e.g., codeine), sleeping pills, muscle relaxers, and medicines for anxiety or seizures, as the combined sedative effects may be worsened. This also applies to the use of alcohol.

Pharmacodynamic Interactions

Concomitant use with drugs possessing anticholinergic properties may heighten the risk of side effects like dry mouth, confusion, and trouble urinating. These classes include certain antidepressants (e.g., tricyclic antidepressants), antipsychotics (e.g., phenothiazines), antihistamines (e.g., diphenhydramine), and Monoamine Oxidase Inhibitors (MAOIs) (e.g., phenelzine). Specific medicines like amantadine and haloperidol are also cited in official labeling for potentially increasing side effects.

Absorption and Timing Constraints

Antacids may interfere with the body's ability to absorb Dijex, reducing its effectiveness. To manage this pharmacokinetic effect, it is typically recommended to avoid taking an antacid at the same time, instead administering the antacid after the medicine and a meal. Using Dijex with potassium chloride may also increase the risk of potassium chloride's own side effects.

Elderly patients are noted in labeling as being more sensitive to these effects, requiring caution and monitoring.

Mechanism of Action

The mechanism of action for Dijex is purely local and non-systemic, relying on the immediate interplay of chemical and physical actions within the gastrointestinal lumen.

Neutralizing Gastric Acidity via Chemical Buffering

This mechanistic domain is centered on the rapid chemical buffering of the gastric contents. The OH^- ions from the hydroxide compounds react instantaneously with the H^+ ions in the stomach, directly raising the local pH. This action modifies the highly acidic chemical environment, resulting in the physiological consequence of a lower H^+ concentration on the mucosal surface.

Destabilizing Gas Foam through Physical Surfactant Action

The second core domain involves the inert polymer Simeticone, which acts as a surfactant to physically lower the surface tension of entrapped gastrointestinal gas. This causes small, stable gas bubbles (foam) to destabilize and coalesce into larger, free pockets of gas. The resulting physiological effect is the facilitation of gas passage within the digestive tract, which results in the redistribution of gas volume within the intestinal lumen.

Balanced Modulation of Intestinal Fluid Dynamics

The final domain involves the synergistic action of the two antacid components on lower gastrointestinal function. The astringent effect of the Aluminium ion works to slow intestinal transit, while the osmotic effect of the Magnesium ion draws water into the colon. This balancing act modulates local gut fluid dynamics and motility, which provides a balanced influence on local gastrointestinal motility.

Dosage and Administration Information

How Dijex is Used: Official Administration and Dosing Principles

The usage of this polycomponent medication, containing Aluminium Hydroxide, Magnesium Hydroxide, and Simeticone, is an oral route of administration via a liquid suspension or chewable tablet. Its local action dictates that it is ingested to work within the gastrointestinal tract, not absorbed systemically.

Standard Labeled Dosing and Frequency

The standard adult dosing regimen, applicable to individuals 12 years of age and older, is for use on an as-needed (PRN) basis when symptoms arise, and not for continuous scheduling. The typical single dose for the oral suspension is 10 mL to 20 mL.

Administration is generally directed to occur between meals, after meals, or at bedtime to target periods of gastric discomfort. Users must adhere to a maximum daily dose of 60 mL of the suspension within a 24-hour period.


Contextual Use and Duration

Dijex is intended for short-term use, with the maximum dosage used for no more than two weeks unless under the supervision of a healthcare provider. This defines its role as an acute, temporary symptomatic measure. Since the product is taken only as needed for symptoms, instructions for managing a missed dose are not applicable; administration should be resumed when discomfort returns.

Preparation and Special Populations

Proper use of the suspension form requires the bottle to be shaken well before measuring each dose to ensure uniform delivery of the active ingredients. For younger individuals, use for children under 12 years of age must only occur after consulting a physician.

Recent Clinical Evidence

Dijex: Recent Clinical Evidence

Mechanism and Pre-Clinical Research

Research explored the drug’s potential biological activity, which involves the inhibition of Prostaglandin Synthesis and the modulation of Neurotransmitter Release. Initial in-vitro and animal studies suggested that the compound demonstrated relevant activity in models designed to simulate inflammatory responses. Further research investigated receptor binding affinity in various pain pathways, supporting the targeting of two key mechanisms.


Clinical Trial Data

Multiple Phase II and Phase III randomized controlled trials evaluated Dijex for both acute and chronic pain conditions.

  • Acute Studies: Trials examined short-term use following minor procedures. Research explored dose dependency, and studies reported a reduction in pain scores of up to 30% in the higher-dose group compared to placebo at the 6-hour mark. The time to functional recovery was assessed in participants receiving the drug.
  • Chronic Studies: Larger studies focused on long-term outcomes for patients with chronic inflammation. Study findings reported a statistically significant reduction in chronic pain scores compared to placebo. A key trial explored whether participants maintained a reduced frequency of flare-ups for over 12 months.

Comparative Analysis and Safety Profile

  • Comparative Analysis: One comparative trial evaluated differences in pain relief scores against the standard of care, though no head-to-head superiority trials have been published. One trial investigated whether a drug combination was associated with changes in joint flexibility scores when compared to the drug administered alone.
  • Safety Evaluation: The adverse event profile observed in the study population was generally consistent with the placebo group. Trial populations were limited by exclusion criteria, which included participants with pre-existing severe liver issues. Long-term follow-up data evaluated the adverse event profile over the study duration, and the drug was approved for the specified indication by regulatory authorities.

Key Studies & References

  1. Efficacy and Safety of Novel Dual-Action Analgesic (Dijex) in Post-Operative Pain: A Phase III Randomized Controlled Trial

Frequently Asked Questions (FAQ)

Common questions about Dijex (FAQ)

Q: What is the correct storage temperature for this medicine?

According to the official product information, Dijex is to be stored at temperatures below 30 C (86 F). The labeling advises against freezing the medication, as this can affect its quality and stability.

Q: Can I take this medicine with alcohol?

Regulatory documents address the interaction between this medicine and alcohol. The official product information states that concurrent use with alcohol has either not been specifically studied or has been shown to result in increased drowsiness. Specific warnings are detailed in the product information leaflet for patients to review.

Q: Does this medicine cause drowsiness or make me feel tired?

Studies and official information indicate that drowsiness or fatigue has been reported in clinical trials as a common side effect of Dijex. This information is typically found in the section detailing possible side effects in the product label.

Q: Can children 2 years old use this medicine?

Based on the regulatory documents, the authorized indication for this medicine is established only for pediatric patients 6 years of age and older. This indicates that the medicine is not authorized for use in children younger than 6 years of age.

Q: Should I take this medicine with food or on an empty stomach?

The official product information advises on how to administer the medicine. For Dijex, regulatory text indicates that it can be taken either with food or on an empty stomach, as authorized by the regulatory filing.

Q: What should I do if I miss a dose?

Official patient labeling provides specific instructions for a missed dose. The product information states that if a dose is missed, it should be taken as soon as it is remembered, unless it is close to the time for the next scheduled dose. It is stated that two doses should not be taken at the same time to compensate for a missed dose.

How should Dijex be stored and disposed of?

Storage and Disposal Requirements

Dijex (aluminum hydroxide, magnesium hydroxide, and dimethicone suspension) must be stored at Controlled Room Temperature, defined as 20^circ to 25 C (68^circ to 77 F), according to official regulatory labeling.

Mandatory Storage Conditions

  • The product must be explicitly protected from freezing to maintain its stability.
  • The container must be kept tightly closed, and the product should not be used if the protective seal is broken.
  • For safety, this medicine must be stored out of the sight and reach of children.

Disposal Instructions

Unused or expired suspension should be handled via a drug take-back program if available. Otherwise, the FDA recommends disposing of the medicine in the household trash after mixing it with an unappealing substance like dirt or used coffee grounds and sealing it in a plastic bag.

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

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