Aludrox

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Aludrox

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Medically reviewed

Marina Burgos

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

What is Aludrox? Overview and Quick Facts

Property Description
Active Ingredient(s) Aluminum Hydroxide, often combined with Magnesium Hydroxide and Simethicone
Form Liquid Suspension (Syrup) or Chewable Tablets
Pharmacological Class Antacid / Antiflatulent
Common Use Quick relief of acid indigestion, heartburn, and gas
Regulatory Status Over-the-Counter (OTC)

What is Aludrox and What is it Used For?

Aludrox is a clinically recognized, over-the-counter (OTC) medication used for the rapid, symptomatic relief of discomfort related to excess stomach acid, primarily heartburn and acid indigestion. It is typically available as a liquid suspension or in chewable tablet form, designed for oral administration. Its primary purpose is to quickly neutralize the high acidity in the stomach and esophagus, providing temporary relief often necessary after consuming specific foods or beverages.

Aluminum Hydroxide-based antacids are utilized for alleviating the burning sensation of reflux. This indicates that the medication is a reliable option for individuals experiencing occasional digestive distress. Unlike prescription medications that aim to block acid production, Aludrox provides prompt, localized relief by treating the acid that is already present.


What Type of Medicine is Aludrox (Composition and Class)?

Aludrox belongs to the pharmacological class of antacids, with its key compound being Aluminum Hydroxide. While historically featuring Aluminum Hydroxide alone, many common Aludrox formulations are often fortified with Magnesium Hydroxide and may include Simethicone for the relief of gas and bloating.

This makes Aludrox a distinctive multi-symptom antacid. The core ingredient is an inorganic, synthetic compound derived from mineral sources. Its mechanism is simple but effective: it acts as a base to chemically neutralize stomach acid, thereby quickly raising the gastric pH. The inclusion of magnesium hydroxide helps mitigate the constipating effect often associated with antacids containing aluminum alone, enhancing its patient tolerance.

Regulatory References

  1. MedlinePlus Aluminum Hydroxide Information
  2. NIH StatPearls Antacids Efficacy
  3. DailyMed Aluminum/Magnesium/Simethicone

What side effects are possible with Aludrox?

Possible Side Effects and Safety Information

The safety profile of Aludrox, which typically contains aluminum hydroxide and magnesium hydroxide, is mainly defined by its effects on the gastrointestinal tract and mineral balance.

System-Organ Class
Gastrointestinal Disorders
Metabolism and Nutrition Disorders
Nervous System Disorders

Commonly reported adverse reactions are gastrointestinal in nature. The aluminum component often causes constipation, while the magnesium component may cause diarrhea. Other general adverse effects may include loss of appetite and unusual tiredness or muscle weakness.

Serious or clinically significant adverse reactions may include severe stomach pain or constipation, bloody or tarry stools, coughing up blood or vomiting material that resembles coffee grounds, and pain during urination. Signs of serious systemic effects, such as extreme drowsiness, confusion, or severe mood changes, warrant immediate medical attention. Allergic reactions (e.g., hives, swelling of the face/throat) are also noted as serious.

Population-Specific and Prolonged Use Considerations:

  • Kidney Impairment: Patients with impaired renal function, including those on dialysis, are at increased risk of aluminum toxicity with prolonged use due to impaired clearance. This toxicity can lead to serious conditions like osteomalacia or encephalopathy.
  • Hypophosphatemia: The product is generally contraindicated in patients with low blood phosphate levels, as aluminum binds phosphate and can worsen the condition, potentially leading to bone softening.
  • Drug Interactions: Antacids can affect the absorption of many other orally administered medicines. It is advised not to take other oral medications within two hours before or two hours after administering Aludrox.
  • Duration of Use: To prevent systemic accumulation risks (like aluminum toxicity and hypophosphatemia) and mask serious underlying conditions, the product label advises against taking it for longer than one to two weeks without professional medical advice.

Overdose and Emergency Response

Overdose and when to seek help

An overdose of aluminum and magnesium hydroxide antacids may present with acute gastrointestinal manifestations. Officially documented symptoms include diarrhoea, abdominal pain, and vomiting following the ingestion of large quantities. However, the primary concern in overdose is the potential for systemic toxicity resulting from the accumulation of the metal ions.

Regulatory Classification of Severe Outcomes

Official prescribing information classifies severe outcomes related to the resulting physiological imbalances. Documented toxicities include Hypermagnesemia (elevated magnesium levels), which poses a risk of central nervous system depression, respiratory impairment, and adverse cardiac effects. Prolonged or excessive exposure can also lead to Hyperaluminemia (aluminum intoxication) and Hypophosphatemia. These complications are significantly heightened in individuals with renal deficiency, as impaired kidney function prevents the body from effectively clearing the accumulated ions. In such high-risk scenarios, regulatory protocols state that procedural interventions, such as haemodialysis or peritoneal dialysis, may be necessary. Supportive treatment described in the label includes rehydration and the use of intravenous calcium gluconate to manage severe magnesium effects.

Mandate for Urgent Medical Attention

Due to the potential for systemic and life-threatening toxicity, the official mandate from regulatory authorities is to seek immediate medical attention or contact a Poison Control Center right away for any confirmed or suspected overdose. This requirement ensures prompt hospital monitoring and supportive care.

Therapeutic Uses of Aludrox

What Aludrox treats: main uses and benefits

Aludrox is an antacid medication used primarily to manage symptoms associated with excess gastric acid. By neutralizing the acidity in the stomach, it provides relief from various upper gastrointestinal discomforts.

Core Indications

The primary application of Aludrox is for the symptomatic relief of conditions where gastric acid causes irritation or pain. These include:

  • Dyspepsia (Indigestion): It helps alleviate general discomfort, bloating, or pain felt in the upper abdomen often occurring after eating.
  • Heartburn: It addresses the burning sensation in the chest or throat caused by acid reflux.
  • Gastritis: It provides relief from inflammation of the stomach lining by reducing the acidic environment that can aggravate the condition.
  • Peptic Ulcer Disease: It may be used as an adjunct therapy to manage pain and discomfort associated with gastric or duodenal ulcers.
  • Hiatus Hernia: It helps control the acid-related symptoms that often accompany this structural condition.

Mechanism and Benefits

Aludrox contains a combination of aluminum hydroxide and magnesium hydroxide. These components work together to provide specific clinical benefits:

Acid Neutralization

The active ingredients react chemically with the hydrochloric acid in the stomach. This raises the pH level of the gastric contents, which reduces the immediate chemical irritation of the stomach and esophageal linings.

Protective Support

By maintaining a less acidic environment, the medication allows the mucosal lining of the gastrointestinal tract a better opportunity to recover from acid-induced irritation. It also helps inhibit the activity of pepsin, a digestive enzyme that can contribute to tissue damage when gastric acidity is high.

Balanced Digestion

The combination of aluminum and magnesium salts is designed to minimize potential changes to bowel habits. Aluminum salts alone can be constipating, while magnesium salts may have a laxative effect; using them in combination aims to provide acid relief with a more neutral impact on digestive regularity.

Regulatory References

  1. MedlinePlus Drug Information overview from the NIH, Aluminum Hydroxide and Magnesium Hydroxide

Eligibility and Restrictions for Use

Eligibility Profile: Official Regulatory Statements

This section outlines the populations for whom the medicine is contraindicated or requires restricted use, based strictly on government regulatory documents.


Absolute Contraindications (Must Not Use)

Condition Basis for Exclusion
Hypophosphataemia Aluminum binding to phosphate can worsen low blood phosphate levels.
Hypersensitivity Known allergy to aluminum salts or any other component.
Renal Impairment (Severe) High risk of aluminum accumulation and toxicity, or hypermagnesemia (if product contains magnesium).
Gastrointestinal Bleeding Undiagnosed or rectal bleeding.

Populations Requiring Restricted Use

Population/Condition Restriction
Renal Impairment (Moderate) Long-term or high-dose use is not recommended; require monitoring.
Pediatric Population Safety and effectiveness are often not established; use is generally restricted.
Pregnancy/Lactation Use with caution and only if medically necessary, due to limited established safety data.
Elderly Patients Use with caution due to increased risk of magnesium-related adverse effects (if applicable).

Official Regulatory Context: Use is generally allowed for adults without contraindications. Any use, particularly long-term or in at-risk groups, is subject to the conditions and limitations stipulated in the official prescribing information.

What should I know about interactions with other medicines?

Official Interaction Profile

The official regulatory profile for Aludrox (Aluminum Hydroxide/Magnesium Hydroxide) is defined by pharmacokinetic interactions that alter the availability of co-administered medicines, a finding documented across governmental drug labels. The core interaction mechanism is the reduction of systemic exposure for certain oral drugs, resulting from either the cation binding (chelation) of the antacid's metal ions or the resultant increase in gastric pH that impairs drug solubility.

This mechanism necessitates explicit timing separation rules for numerous drug classes. Administration of the antacid must be separated by at least two hours from most oral medications, including certain antibiotics (Tetracyclines, Fluoroquinolones), thyroid hormones (Levothyroxine), cardiac glycosides (Digoxin), and statins (Rosuvastatin), to prevent impaired absorption.

A distinct interaction involves Citrate and Citric Acid (found in certain foods and medications). This combination is officially documented to increase the body's absorption of aluminum, leading to elevated serum aluminum concentrations.

The interaction profile includes specific population-dependent warnings. Due to reduced renal clearance of the antacid’s metal components, patients with kidney impairment face a heightened risk of aluminum accumulation (Hyperaluminemia) and magnesium accumulation (Hypermagnesemia), both of which are serious interaction outcomes documented in regulatory sources.

Mechanism of Action

Chemical Neutralization of Gastric Acidity

The primary mechanism involves the direct chemical neutralization of free Hydrochloric Acid ( HCl) within the gastric lumen by the drug's basic components (Aluminum and Magnesium Hydroxides). This rapid, non-receptor-mediated reaction elevates the local pH, resulting in the functional inactivation of the enzyme Pepsin. This action results in a diminished irritant potential of the gastric fluid on mucosal tissue.

Physical Antifoaming Action on Trapped Gas

A distinct, physical mechanism is provided by Simethicone, which acts as a surfactant to reduce the surface tension of small, trapped gas bubbles in the gastrointestinal tract. This action facilitates the coalescence of these bubbles into larger pockets of gas, facilitating their passage through the digestive system. This physical alteration of gas dynamics influences the intraluminal pressure profile.

Balanced Modulation of Intestinal Transit

The two main antacid components exhibit mechanistically opposing influences on bowel movement. The Aluminum ions tend to slow colonic transit via an astringent effect, which is counteracted by the osmotic effect of the Magnesium ions, which tends to accelerate it. This self-balancing mechanism results in a net influence that favors the maintenance of relatively stable intestinal motility during neutralization.

Dosage and Administration Information

The administration of Aludrox, an oral antacid suspension containing aluminum hydroxide and magnesium hydroxide, is based on a standardized, short-term usage protocol. The route of use is oral, and the medication is taken in the form of a liquid suspension or chewable tablet.

Dosing for adults and children 12 years and older is specified as a single dose of 10 mL to 20 mL of the liquid suspension. This dose is administered up to four times a day, with the timing being between meals and at bedtime. To ensure accurate administration, the suspension must be shaken well prior to measurement.

There is a limit on total consumption: the maximum total intake is 80 mL in a 24-hour period. Furthermore, a duration constraint exists: the maximum daily dosage must not be used continuously for a period exceeding two weeks. Regarding specific populations, the administration for children under 12 years of age requires physician consultation for determining proper use.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Aludrox

This section provides a summary of the research structure and available evidence for antacid combinations like Aludrox. The information research describes what types of studies have been conducted and what research is still needed, maintaining a focus on the research context rather than clinical advice or personal outcomes. Research contributes to the broader evidence landscape but does not determine individual predictions.

Evidence for Symptomatic Relief of Heartburn and Acid Indigestion

Research into the use of this antacid combination was studied for research contexts involving fluctuating or unstable symptoms of heartburn and acid indigestion, primarily conducted through clinical trials, including Randomized Controlled Trials (RCTs). These studies were used in research exploring how symptoms change over time in adults who experience mild or episodic manifestations of acid-related discomfort. Researchers examined outcomes related to physical discomfort, such focusing on how quickly participants reported a change in their symptoms and the total duration over which the effect was observed in the studies.

What the Studies Show About Short-Term Use

The findings describe patterns observed in the studies where the antacid combination was associated with participant-reported changes in perceived discomfort, particularly in research exploring single-dose or short-duration usage. Studies reported measurements of a rapid rise in pH (the measure of acidity) within the stomach, which aligns with the process of acid neutralization that research describes. This research contributes to understanding symptom patterns during acute episodes.

Evidence for Symptom Management in Gastric Hyperacidity

Studies was evaluated in adults to focus on the core chemical process of how this medicine affects stomach acid. This research applied in studies examining the neutralization capacity of the combination. The main goal was observed in controlled studies to monitor the outcomes related to physical discomfort by measuring changes in pH levels after administration. These studies consistently data show patterns related to rapid and measurable increases in gastric pH levels immediately following administration.

What Remains Uncertain

Long-term effects are not fully established, meaning the data mainly reflects temporary, symptomatic use. Evidence is limited regarding whether taking this antacid over many months or years has been studied for. Data for certain groups remain insufficient, particularly for specific populations such as children or women who are pregnant or nursing. Research primarily describes patterns related to short-term, acute changes and does not determine whether an individual will respond similarly to the group patterns observed.

Key Studies & References

  1. Aluminum Hydroxide and Magnesium Hydroxide: MedlinePlus Drug Information
  2. Antacids - StatPearls - NCBI Bookshelf (Review of Antacid Use, Efficacy, and Historical Context for GERD/Ulcers)

Frequently Asked Questions (FAQ)

Common questions about Aludrox (FAQ)

Q: Can I take this antacid with ibuprofen or acetaminophen?

Regulatory studies that examined ibuprofen found that the absorption of ibuprofen was not significantly altered when taken with an antacid containing aluminum hydroxide and magnesium hydroxide. This indicates that a change in absorption is not an expected outcome for this specific pain reliever. However, official regulatory information describes a timing separation rule where Aludrox administration is advised to be spaced at least two hours from most other oral medications to prevent impaired absorption.

Q: Is there a risk of high blood sugar (hyperglycemia) from this product?

Official product information indicates that aluminum hydroxide may impact how the body absorbs certain antidiabetic agents, which are medicines used to manage blood sugar. The official drug label for one such agent defines a timing separation rule, which indicates that the antidiabetic medicine should be taken at least two hours apart from the antacid. The concern described in official documents relates to the antacid’s effect on the absorption of other medications, rather than the antacid directly altering blood sugar levels.

How should Aludrox be stored and disposed of?

Official Storage and Disposal Requirements

The storage and disposal of Aludrox (aluminum hydroxide and magnesium hydroxide) must strictly adhere to the conditions specified on the regulatory labeling to maintain product stability and safety.

Requirement Area Official Label Instructions
Temperature and Environment Store at Controlled Room Temperature (20^circ to 25 C or 68^circ to 77 F). Do not store in a bathroom.
Protection and Handling Do not freeze the liquid formulation. Keep the container tightly closed and protect it from excessive moisture and heat.
Child Safety Keep out of the reach of children and pets.
Disposal Do not flush unused or expired medicine down a toilet or pour down a drain. Use a drug take-back program when available. If not, follow household disposal procedures by mixing the product with an undesirable substance and placing it in a sealed container before trashing.

These instructions ensure the product remains stable by controlling its storage environment, protecting the suspension from freezing, and preventing accidental ingestion by children.

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

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