Aludrox-MH

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Aludrox-MH

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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 Aludrox-MH

Quick Facts

Property Description
Active ingredient Aluminum Hydroxide, Magnesium Hydroxide
Form Oral Suspension (Liquid)
Pharmacological class Antacids, Acid-Neutralizing Agent
Common use General relief of discomfort caused by high gastric acidity
Origin Synthetic (Inorganic salts)

Aludrox-MH: A Combination Antacid and Oral Suspension

Aludrox-MH is an Over-The-Counter (OTC) pharmaceutical preparation classified as a Combination antacid, provided in the dosage form of an Oral Suspension. This liquid preparation is distinguished from tablet forms by its immediate readiness for ingestion. This product is a Fixed-dose combination containing two distinct active ingredients: Aluminum Hydroxide (Al(OH)3) and Magnesium Hydroxide (Mg(OH)2). The combination is a widely recognized class of medicine used to neutralize stomach acid. The components, which are synthetic inorganic salts, are suspended in an aqueous base for oral route of administration. As an Acid-Neutralizing Agent, this medication's identity is defined by its ability to engage in direct chemical reactions with stomach acid.

What is the General Purpose of Combining Aluminum and Magnesium Hydroxides?

The primary general purpose of Aludrox-MH is to provide rapid relief from the discomfort associated with high gastric acidity by performing direct acid neutralization. This is achieved by the active ingredients engaging in a local buffer action within the stomach, raising the pH level to quickly decrease the corrosiveness of the stomach's contents. The strategic inclusion of both Aluminum Hydroxide and Magnesium Hydroxide in the formulation is clinically recognized for achieving a more balanced therapeutic profile for the patient by managing the opposing gastrointestinal effects of the two salts. This combination counters the potential constipating effect associated with aluminum salts with the faster action and potential laxative effect of magnesium salts. The product is generally positioned for rapid, on-demand use, distinguishing it from medications that require daily dosing to suppress acid production.

What side effects are possible with Aludrox-MH?

Possible side effects and safety information

The officially documented safety profile for the combination antacid Aludrox-MH (Aluminum Hydroxide and Magnesium Hydroxide) is classified by regulatory agencies into local gastrointestinal effects and potential systemic metabolic changes.


Adverse Reaction Classifications

Adverse reactions are primarily noted in two System-Organ Classes: Gastrointestinal Disorders and Metabolism and Nutrition Disorders.

Classification Examples of Officially Listed Effects
Uncommon Changes in bowel habit, such as Diarrhea (linked to magnesium) and Constipation (linked to aluminum).
Frequency Not Known Hypersensitivity reactions, Hypermagnesemia, Hyperaluminemia, and Hypophosphatemia (phosphate depletion).

Serious Adverse Reactions and Systemic Risks

Serious adverse reactions, while not common, are typically associated with chronic, high-dose exposure or pre-existing conditions. Regulatory documents note the risk of severe Hypophosphatemia which can affect bone health, and Aluminum-Induced Neurotoxicity or Hypermagnesemia, both of which are primarily seen in individuals with severe renal impairment.

Population-Specific Safety Considerations

The use of this antacid combination is contraindicated in severe renal impairment because impaired kidney function significantly increases the plasma levels of both aluminum and magnesium, raising the risk of systemic toxicity. Safety statements also advise caution for older adults due to increased vulnerability to aluminum accumulation and potential gastrointestinal issues. Risks like phosphate depletion are heightened for patients on low-phosphate diets.

Overdose and Emergency Response

The official regulatory profile for Aludrox-MH defines overdose manifestations primarily as gastrointestinal effects, including diarrhoea, vomiting, and abdominal pain. Severe symptoms are generally classified as unlikely following acute overdosage in individuals with normal renal function.

However, the documentation highlights the risk of systemic hyper-accumulation of aluminum and magnesium. In patients with severe renal function deficiency, accumulation can lead to serious adverse outcomes such as Hypermagnesemia and Hyperaluminemia. Severe systemic effects, including Hypotension, ECG changes, and neurological depression, are noted in regulatory texts for cases of advanced magnesium accumulation.

A major localized complication documented is intestinal obstruction (ileus), which large doses may trigger or aggravate in at-risk populations, such as the elderly or infants.

Regulatory-mandated emergency actions require that a doctor be consulted immediately if an amount exceeding the recommended dose is taken. Urgent medical attention must be sought immediately if any severe symptoms occur, specifically the signs of an intestinal blockage. Treatment documented in regulatory sources includes supportive measures like rehydration, forced diuresis, and the administration of Intravenous Calcium Gluconate. For those with compromised renal function, haemodialysis or peritoneal dialysis is documented as a necessary intervention.

Therapeutic Uses of Aludrox-MH

What Aludrox-MH Treats: Main Uses and Benefits

Aludrox-MH is indicated for the symptomatic relief of common digestive discomforts. This medication is used to provide temporary relief of symptoms associated with hyperacidity and excess gas in scenarios like non-ulcer dyspepsia (indigestion), heartburn, and flatulence. The goal of treatment is to support temporary comfort and assist in the management of associated symptoms.

Antacids are widely utilized to help counteract excess stomach acid and manage associated discomfort. This type of medication is used to assist in the management of immediate gastrointestinal upset, supporting temporary relief.

Quick Fact: Relief for Acid Indigestion

Eligibility and Restrictions for Use

Population Eligibility Status

Official regulatory documents define specific eligibility criteria for Aludrox-MH based on age, organ function, and pre-existing clinical conditions. Use is permitted for adults and adolescents 12 years of age and older under standard labeled conditions.

Absolute Contraindications

The medicine is strictly contraindicated and must not be used by patients with kidney failure or advanced renal disease, hypophosphataemia (phosphate depletion), or known hypersensitivity to any ingredient. Absolute non-eligibility is also established for individuals suffering from severe debilitation, intestinal obstruction, fecal impaction, or appendicitis. Infants and very young children under 2 years old are strictly prohibited from use.

Conditional Use and Age Restrictions

Use is not recommended for children under 12 years of age without explicit medical guidance. Older adults are identified as a higher-risk group for complications, particularly with renal impairment. Patients with moderate renal impairment must avoid prolonged use and use the medicine with extreme caution due to the risk of aluminum and magnesium ion accumulation.

For pregnancy, use is conditional; regulatory documents state that the potential benefits to the mother must be determined to outweigh potential risks. The medicine is generally considered compatible with breastfeeding.

What should I know about interactions with other medicines?

Aludrox-MH Interactions with other medicines and products

Aludrox-MH (a combination of aluminum hydroxide and magnesium hydroxide) can interact with a wide variety of medications and certain food products, primarily by altering their absorption or elimination. The antacids work by neutralizing stomach acid, which can affect the dissolution of drugs that require an acidic environment for proper absorption.

Decreased Absorption of Medications

The most common interaction is a reduction in the absorption and, therefore, the effectiveness of other oral medicines. This effect is often due to the antacid binding to the medication in the gastrointestinal tract. To minimize this effect, a separation of doses is typically recommended, often by 2 to 4 hours. Classes of drugs commonly affected include:

Drug Class / Example
Antibiotics: Tetracyclines, Fluoroquinolones (e.g., Ciprofloxacin, Azithromycin)
Heart Medications: Digoxin, Quinidine
Thyroid Hormones: Levothyroxine
Bisphosphonates: Alendronate
Iron Supplements: Ferrous Sulfate

Increased Absorption or Effects

In some cases, the combination can increase the absorption or prolong the effects of certain drugs, such as pseudoephedrine and levodopa, which may increase the risk of side effects.

Other Notable Interactions

  • Citrates: Co-administration with citrate-containing products (found in some supplements, juices, and effervescent medications) is generally avoided, particularly in patients with kidney impairment. Citrates can significantly enhance the absorption of aluminum, leading to potential toxicity.
  • Renal Impairment: Patients with compromised kidney function should use Aludrox-MH with caution. The reduced clearance of aluminum and magnesium can lead to a buildup of these minerals, potentially resulting in hypermagnesemia or aluminum intoxication (which can affect bone or brain function).

Always consult a healthcare provider or pharmacist regarding all current medications, vitamins, and supplements to manage potential interactions safely.

Mechanism of Action

Direct Physicochemical Neutralization: Local Alkalization

The primary mechanism of Aludrox-MH is a rapid direct chemical reaction confined to the gastric lumen, targeting existing Hydrochloric Acid ( HCl) and its Hydrogen Ions ( H^+). This immediate interaction consumes the acid, quickly raising the local pH level through a local buffer action. This fast change in the chemical environment results in a reduction of acid-induced chemical signaling from the stomach's mucosal lining.


Combined Salts and Gastrointestinal Motility Balance

The combination mechanism results in a counterbalance between the two components' actions on gastrointestinal movement. The resulting aluminum salts formed post-neutralization have a tendency to slow down gastrointestinal smooth muscle motility, while the resulting magnesium salts create an intraluminal osmotic effect that draws water into the intestine, increasing motility. The combination modulates these opposing physiological consequences, producing a net effect on digestive transit time.


Mechanistic Scope: Non-Suppressive and Transient

This mechanism is defined as a passive chemical sink for existing acid, meaning it does not engage in cellular signal transduction pathways to inhibit or suppress the future secretion of acid by the parietal cells. Consequently, the pH-modulating effect is transient and fully reliant on the immediate presence of HCl for the reaction to occur, leading to a finite duration of action.

Dosage and Administration Information

How to Use Aludrox-MH

Aludrox-MH, an antacid preparation containing Aluminum Hydroxide and Magnesium Hydroxide, is administered exclusively by the oral route as an Oral Suspension.

Official Administration Guidelines

Feature Instruction
Route of Administration Oral (swallowing)
Dosing Schedule (Adults/12+ Years) Single doses range from 10 mL to 20 mL.
Maximum Daily Limit No more than 80 mL should be consumed in a 24 hour period.
Timing Administered up to four times daily, typically between meals and at bedtime.
Preparation The bottle must be shaken well before each use to ensure proper dispersion of the active ingredients.
Duration Constraint Continuous use should not exceed 14 days unless directed by a healthcare professional.

Procedural Context and Constraints

The usage protocol establishes Aludrox-MH as an as-needed preparation intended for short-term, acute use. The measured dose must be administered using a calibrated device to ensure adherence to the specified volume range. Use in children under 12 years of age requires direction from a physician. Furthermore, patients with kidney disease should consult a physician prior to using this medication, primarily due to the magnesium component.

This defined usage structure, including the Maximum Daily Limit and Duration Constraint, outlines the standardized approach for using the medicine. The medicine is not a scheduled daily treatment; therefore, there is no formal missed-dose protocol.

Recent Clinical Evidence

Research evidence / Overview of studies for Aludrox-MH

Evidence for Symptomatic Relief of Acute Heartburn and Indigestion

Research into combination antacids like Aludrox-MH has primarily centered on short-term studies, including Randomized Controlled Trials (RCTs) and systematic reviews, used in research exploring how symptoms change over time. These trials were applied in studies examining patient-reported experiences among adult populations relevant in trials assessing short-term or episodic symptom patterns. The main goal of this research was to understand the time intervals observed in research exploring short-term symptom changes and how patients perceived the change in their symptoms.

The studies monitored two key areas: the immediate change in acidity—called Acid-Neutralizing Capacity (ANC)—and outcomes related to physical discomfort. Research describes that the combination was studied for how quickly it can alter stomach pH, and findings describe patterns observed in the studies related to a temporary shift in physiological state. Clinical findings focused on episodes where symptoms become more noticeable over defined time intervals.

However, there is limited information for long-term outcomes related to systemic or functional imbalance. While short-term research provides insight into acute changes, data for conditions involving periods of heightened symptoms are still emerging. The follow-up durations were limited in most of these trials.


Evidence for Adjunctive Use in Reflux and Ulcer Conditions

This medicine was evaluated in research examining its use in conditions involving periods of heightened symptoms, such as Gastroesophageal Reflux Disease (GERD) and peptic ulcer conditions. The studies explored outcomes related to physical discomfort capturing phases of heightened symptom activity. Evidence surrounding its use for ulcer healing, particularly duodenal ulcers, is often derived from historical endoscopic controlled studies.

Comparative evidence is lacking over long periods. Since the usage requires a multi-dose schedule, evidence suggests that patient adherence may be challenging, limiting the ability of research to explore its use as a primary, continuous approach for these conditions.


Follow-up Duration and Long-Term Data

Studies contribute to the broader evidence landscape by describing patterns related to the agent's ability to alter intragastric pH. However, there is limited information for long-term outcomes or the consequences of using this type of medication continuously over many years. Long-term effects are not fully established, and certainty remains low regarding sustained, non-episodic management.

Frequently Asked Questions (FAQ)

Common questions about Aludrox-MH (FAQ)


Q: What is hypophosphatemia, and is it a potential risk with this medication?

Official warnings note that the aluminum component of the antacid binds to phosphate in the gut. Prolonged or high-dose use can potentially lead to a low level of phosphate in the blood, a condition called hypophosphatemia. Symptoms described in official documents can include loss of appetite, muscle weakness, or unusual tiredness.


Q: Are there different strengths or formulations of Aludrox-MH available?

Official product information indicates that this combination of ingredients is available in both liquid suspension and chewable tablet forms. These products are offered in multiple strengths of the active ingredients, which may vary across different formulations.


Q: Is Aludrox-MH recommended for relief of symptoms from eating or drinking too much?

Official product information states that this medicine is intended to relieve symptoms of stomach discomfort. This includes general upset stomach or discomfort that is caused by consuming too much food or drink.


Q: How do the three active ingredients in Aludrox-MH balance each other's effects?

This medicine contains aluminum hydroxide and magnesium hydroxide to create a balanced therapeutic effect. The aluminum salt component tends to cause constipation, while the magnesium salt component tends to cause diarrhea. The third ingredient, Simethicone, is included for its anti-gas properties.


Q: Is Aludrox-MH approved for relieving symptoms of GERD?

The medicine is officially indicated for the relief of symptoms such as heartburn and acid indigestion. It is sometimes mentioned in medical contexts as being prescribed for Gastroesophageal Reflux Disease (GERD) or other conditions involving excess stomach acid.


Q: What types of food or drink should be avoided while taking Aludrox-MH?

Official warnings advise patients to avoid the frequent consumption of alcohol while using this product. This is because alcohol may potentially worsen the underlying acid condition and interfere with the process of symptom relief.


Q: Does Aludrox-MH help relieve symptoms of gas and bloating?

Yes, this medicine is classified as an Antacid and an Antigas agent. Official documentation indicates it is intended to relieve symptoms of gas, bloating, and feelings of pressure or discomfort in the stomach.


Q: What is the role of Simethicone in the Aludrox-MH formulation?

Simethicone is the anti-gas component of this formulation, often classified as an antiflatulent agent. It works by physically helping to break up gas bubbles in the gut, which can assist in relieving pressure and bloating.


Q: Can Aludrox-MH cause nausea or stomach discomfort in some people?

Official safety information for this class of medicine lists several gastrointestinal side effects. Reported effects may include the possibility of nausea, stomach cramps, and vomiting.


Q: What kind of interactions are possible with Aludrox-MH and blood pressure medications?

Official product labels advise users to consult with a healthcare professional before use if they are taking a prescription medication. This general precaution is issued because antacids can potentially interact with various prescription drugs, including those commonly used for high blood pressure.


Q: Does Aludrox-MH contain sodium, and should that be a concern for certain diets?

Yes, official product information confirms that this medicine contains a small amount of sodium per dose. Individuals who are following a sodium-restricted diet are advised to consult with a doctor or pharmacist prior to using the product.


Q: Is Aludrox-MH considered an antacid, an anti-gas medicine, or both?

Official classification documents indicate that this medicine is a combination product. It is classified as both an Antacid, due to the presence of aluminum and magnesium hydroxides, and an Antigas agent, due to the Simethicone component.


Q: What is the meaning of 'gastric hyperacidity' in relation to the drug's use?

The term gastric hyperacidity is used in official documentation to describe the medical condition related to the drug's use. It refers to having too much acid in the stomach, which causes the symptoms that this medicine is intended to relieve.


Q: Can Aludrox-MH cause a chalky or metallic taste in the mouth?

Official sources list a variety of possible side effects related to taste. The possibility of experiencing a chalky taste is among the reported effects.


Q: What does 'antiflatulent' mean, and which ingredient is responsible for this effect?

The term antiflatulent describes the therapeutic effect of the Simethicone component. This ingredient is designed to help relieve excess gas and associated feelings of bloating.


Q: Does Aludrox-MH contain any sugar or sweeteners like sorbitol or saccharin?

Official inactive ingredients lists for various formulations confirm the presence of certain sweeteners. This may include saccharin sodium, sorbitol solution, and sugar, depending on the specific product format.


Q: Is Aludrox-MH suitable for people who have diabetes?

Given that some formulations contain sugar and sorbitol, regulatory bodies advise caution for certain patients. Individuals with diabetes or those following a sugar-restricted diet should consult a doctor or pharmacist before using the product.


Q: Is the medication Aludrox-MH known by any other common brand names internationally?

Official regulatory documentation often tracks various market identities for the same drug combination. This combination of ingredients is marketed under several different brand names, including Antacid M and Gen-Alox.


Q: Can Aludrox-MH be used for indigestion that is not acid-related?

Yes, official indications for use include relief of symptoms described as 'gas,' which is a form of indigestion that is not strictly acid-related. The inclusion of Simethicone supports this use.


Q: Are there any known inactive ingredients in the suspension form that could cause a reaction?

Official product labeling lists all inactive ingredients used in the suspension form. Patients with known allergies to substances like parabens (butylparaben, propylparaben) or benzyl alcohol should consult a healthcare professional.


Q: What should be done if an accidental large overdose of Aludrox-MH is taken?

Official safety information outlines the steps to take in the event that an excessive amount of the medicine is accidentally consumed. The product labeling states that in case of an overdose, a user should seek medical help or contact a Poison Control Center immediately.


Q: What are the different strengths of Aluminum Hydroxide and Magnesium Hydroxide found in Aludrox-MH products?

Official product labels define the ingredient strengths for various dosage units. Common liquid suspension units typically contain a combination of 400 mg/400 mg up to 800 mg/800 mg of Aluminum Hydroxide and Magnesium Hydroxide per 10 mL.

How should Aludrox-MH be stored and disposed of?

How to Store and Dispose of Aludrox-MH

Official regulatory guidelines define specific conditions for storing this combination oral suspension to maintain its stability and effectiveness.

Required Storage and Handling

The product must be stored at Controlled Room Temperature, typically maintaining a range of 20^circ to 25 C (68^circ to 77 F). It is a mandatory requirement to protect from freezing and excessive heat, and the container must be kept tightly closed. As a liquid suspension, the product label instructs users to shake well before using. Consistent with safety regulations, the medicine must always be stored out of reach of children.

Official Disposal Instructions

Unused or expired Aludrox-MH should not be flushed down the toilet or poured into the drain. Consumers are directed to discard the medicine through an authorized drug take-back program or by following specific instructions for safe disposal in household trash, which prevents environmental release.

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

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