Almol

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Almol

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 Almol

Property Description
Active ingredient Algeldrate, Magnesium Hydroxide
Form Oral Suspension
Pharmacological class Antacid (Gastric Acid Neutralizer)
Common use Symptomatic relief of excess stomach acid
Origin Synthetic/Inorganic compounds

What Type of Medicine is Almol?

Almol is classified as an Oral Combination Antacid Preparation, falling under the pharmacological class of Gastric Acid Neutralizers, and is generally recognized as a readily available Non-Prescription Medicine. Its active ingredients, Algeldrate and Magnesium Hydroxide, are inorganic salts, placing the formulation in the Synthetic/Inorganic compound category. Antacids are characterized by their ability to neutralize gastric acidity. This combination formulation is recognized for providing a balanced effect, differentiating it from single-salt preparations by optimizing both onset and duration of action.

What is Almol Made Of? Composition and Form

The core of Almol lies in its active ingredients: the inorganic salts Algeldrate (aluminum hydroxide gel) and Magnesium Hydroxide, which are essential for its function as a chemical buffer. This preparation is a Combination Product, intentionally designed so that the constipating tendency of the aluminum component is mitigated by the mild laxative effect of the magnesium component. Almol is typically presented as an Oral Suspension, ensuring the active materials are dispersed in an Aqueous vehicle. Liquid suspensions promote rapid contact with the gastric mucosa compared to solid dosage forms, as the form is designed for immediate local action.

What is the General Purpose of Almol?

The general purpose of Almol is to provide prompt, symptomatic relief by directly initiating Acid Neutralization within the stomach, helping to manage discomfort associated with excessive acidity. The formulation's primary benefit is its ability to act as a quick, non-systemic acid control agent, focusing its action locally in the gastrointestinal tract to alleviate acid-related symptoms.

Regulatory References

  1. Antacids - StatPearls - NCBI Bookshelf - NIH

What side effects are possible with Almol?

Possible Side Effects and Safety Information

The officially documented adverse reaction profile for Almol, a combination antacid containing Algeldrate (Aluminum Hydroxide) and Magnesium Hydroxide, is primarily centered on the Gastrointestinal Disorders system-organ class.


Adverse Reaction Classifications

The most common and expected adverse effects, which reflect the dual nature of the ingredients, include diarrhea (associated with the magnesium component) and constipation (associated with the aluminum component). Other common effects documented in regulatory sources include abdominal pain and nausea.

Serious adverse reactions are categorized as rare or frequency not known, and are typically related to systemic accumulation of the active ions. These reactions include Hypermagnesemia (high blood magnesium levels), Hypophosphatemia (low blood phosphate), and systemic Aluminum Intoxication (hyperaluminemia). Additionally, severe hypersensitivity reactions, such as Anaphylactic reaction and Angioedema, are documented as potential, rare effects.


Population-Specific and Duration-Related Safety

Official labeling defines specific safety considerations for certain populations. The most significant is for individuals with renal dysfunction or kidney disease, who are at a heightened risk for Hypermagnesemia and Aluminum Intoxication due to the reduced ability to clear these metallic ions.

Regulatory safety notes also define a pattern tied to exposure: the risks of Hypophosphatemia and Aluminum Intoxication are specifically noted as concerns associated with prolonged or chronic use. Consequently, regulatory documents establish a safety-related restriction that self-medication should not exceed a continuous period of two weeks without professional consultation. Furthermore, a high-level safety constraint advises that antacids may affect the absorption of certain prescription drugs.

Overdose and Emergency Response

Overdose and when to seek help

Overconsumption of Almol is officially documented in regulatory information with two primary concerns: acute gastrointestinal manifestations and severe systemic toxicity. Acute overdose is typically characterized by gastrointestinal symptoms including diarrhoea, abdominal pain, vomiting, and nausea. Large doses may also lead to intestinal obstruction (ileus) in at-risk individuals.

The most severe risks are linked to Systemic Metal Ion Toxicity arising from the accumulation of magnesium and aluminum. Severe Hypermagnesemia may manifest as CNS depression, respiratory depression, hyporeflexia, cardiac arrhythmias, and can progress to cardiac arrest.


When to Seek Immediate Medical Help

The official guidance mandates that individuals must seek emergency medical attention immediately or contact a Poison Control Center right away if overdose is suspected or if severe, life-threatening symptoms are observed.


Specific Overdose Considerations

Patients with renal impairment are at a particularly high risk of accumulation toxicity, including both Hypermagnesemia and Hyperaluminemia, due to impaired elimination. Overdose management procedures listed in regulatory documents include the administration of Intravenous Calcium Gluconate to counter magnesium toxicity and the necessity of Haemodialysis for patients with kidney function deficiency.

Therapeutic Uses of Almol

What Almol Treats: Main Uses and Benefits

Almol, which contains antacid ingredients such as magnesium hydroxide and aluminum hydroxide, is generally used to provide supportive symptom management for conditions linked to gastric hyperacidity. These types of products are indicated for the relief of heartburn, sour stomach, and acid indigestion.


Key Therapeutic Focus

The medication is commonly used to help manage the acute, painful manifestations of acid reflux, specifically the burning sensation (pyrosis) felt in the chest and throat, which is characteristic of acid reflux episodes. This medication may assist with providing supportive symptomatic relief for issues related to Gastroesophageal Reflux Disease (GERD), Gastritis, and Peptic Ulcer, often applied during episodic flare-ups or acute periods of discomfort.

The core benefit is that Almol helps address symptom clusters that may become temporarily overwhelming, such as sour stomach, general acid indigestion, and feelings of upper abdominal discomfort. This supportive action contributes to improved day-to-day comfort during symptomatic periods.

“This symptomatic support may assist in easing acute distress when symptoms interfere with functional stability.”


Quick Fact: Application in Acute Symptomatic Episodes

Almol is relevant when short-term symptomatic assistance is needed, is applied in scenarios where symptoms become more noticeable, and is relevant in contexts involving heightened systemic burden.

Eligibility and Restrictions for Use

Almol, whose active ingredient is paracetamol (acetaminophen), is a widely used medication generally considered safe when taken according to the recommended dose and duration. It is primarily used to relieve mild to moderate pain (such as headaches, muscle aches, and menstrual pain) and reduce fever.

Who Can Use Almol?

  • Adults and Children: The medication can be used by both adults and children; however, the appropriate dosage and formulation (e.g., tablet, syrup) must be strictly followed based on age and body weight, as directed by a healthcare professional.
  • Pregnancy and Breastfeeding: Use during pregnancy and while breastfeeding should only occur after consulting a doctor, who will weigh the benefits against any potential risks to the baby. It is generally recommended to use the lowest effective dose for the shortest possible duration.

Who Should NOT Use Almol?

Almol is contraindicated and should not be used in the following circumstances:

Condition Reason for Caution/Contraindication
Allergy Known hypersensitivity or allergy to paracetamol or any other ingredients in Almol.
Severe Liver Disease Paracetamol is metabolized by the liver, and severe impairment increases the risk of serious liver damage (hepatotoxicity).
Chronic Alcohol Use Regular, heavy alcohol consumption significantly increases the risk of severe liver damage, even with recommended doses of Almol.

Individuals with pre-existing kidney disease or chronic malnutrition should use Almol with caution and only under a doctor's supervision, as dose adjustments may be necessary. It is crucial to never exceed the maximum recommended daily dosage to avoid the risk of severe, life-threatening liver damage.

What should I know about interactions with other medicines?

Almol's official interaction profile is defined by its locally acting, non-systemic nature, which significantly affects the absorption of co-administered medicines. This is primarily a pharmacokinetic interaction resulting from the alteration of gastric pH and chemical binding (chelation) within the digestive tract, as documented in government drug labels. This physicochemical interference leads to a reduction in the oral bioavailability (AUC and C max) of numerous systemic medicinal products.

Key categories of interacting medicines that require consideration include Tetracyclines, Fluoroquinolones, Levothyroxine, and Iron Salts. The resulting constraint is a mandatory timing separation rule for these susceptible agents, where co-administration must be separated by at least two to four hours.

A critical substance interaction is with citrate salts (present in certain supplements and food products), which officially increases the systemic absorption of the aluminum component (Algeldrate). This exposure modification is associated with a population-specific consideration in regulatory labeling: patients with renal impairment face a heightened risk of aluminum accumulation due to compromised renal clearance. The interaction structure is classified by regulators as a clinically significant absorption reduction for susceptible drugs and an exposure risk linked to aluminum in specific, vulnerable populations.

Mechanism of Action

Chemical Neutralization of Gastric Hydrochloric Acid

The primary function of Almol is a direct chemical neutralization where the weak bases, Algeldrate and Magnesium Hydroxide, rapidly combine with the free Hydrochloric Acid ( HCl) in the stomach lumen to form neutral water and inactive salts. This instantaneous chemical process lowers the acid load and results in a swift, rapid increase in gastric pH, directly reducing the concentration of H^+ ions.


️ Functional Inactivation of Pepsin and Mucosal Stability

The immediate pH increase triggered by neutralization modulates the surrounding environment, causing the enzyme Pepsin to enter a state of reversible inactivation. Since Pepsin is only active at high acidity, this results in the cessation of proteolytic activity, which limits the potential for enzymatic breakdown of mucosal proteins.


️ Physiological Balancing of Gastrointestinal Motility

The formulation leverages the opposing gastrointestinal effects of its components. The natural gastrointestinal slowing effect inherent to the aluminum component is mechanically offset by the osmotic water-drawing and motility-enhancing properties of the magnesium component. This mechanism maintains a more stable rate of gastrointestinal transit compared to single-salt preparations.


⏳ Mechanism Limitations and Non-Secretory Action

This mechanism is strictly non-systemic and has a finite capacity determined by the amount of base delivered; it does not inhibit the acid-secreting parietal cells themselves. The neutralization is therefore temporary, and the pH increase can temporarily interfere with the gastrin negative-feedback loop, which is associated with a temporary post-mechanism increase in acid secretion.

Dosage and Administration Information

Official Administration Protocol for Almol (Algeldrate/Magnesium Hydroxide)

The use of Almol, an Oral Suspension, is governed by specific guidelines that define the conditions for its administration. This protocol focuses exclusively on the preparation, dosage limits, and timing as established in product labeling.

Administration Feature Official Labeled Instruction
Route of Administration Oral route only.
Dosing Regimen Single dose volume ranges from 10 mL to 20 mL for adults and adolescents (ages 12 and older).
Daily Maximum Limit Do not exceed 80 mL in a 24-hour period.
Frequency and Timing Up to four times a day (Q.I.D.), typically taken between meals and at bedtime.
Preparation Requirement The suspension must be shaken well immediately before measuring the dose.
Duration Constraint Maximum high-dose use is limited to 2 weeks unless directed by a physician.

The official guidelines place critical constraints on the administration process. Users are required to maintain a 2-hour separation between the antacid dose and any other orally administered medications. Furthermore, for populations such as children under 12 and patients with kidney impairment, the labeled instructions explicitly require consultation with a healthcare provider before use, defining supervised administration for these specific groups.

Recent Clinical Evidence

Recent Clinical Evidence

Overview of Efficacy

Research has explored the impact of Almol on the frequency and severity of migraine attacks. This treatment was studied for use as a prophylactic measure for chronic migraine. Research protocols have focused on evaluating clinical outcomes in subjects with chronic migraine.


Summary of Key Findings

Long-Term Prophylaxis Study

In a landmark 2-year study, researchers assessed the impact of the agent on patient-reported quality of life, and results related to patient-reported quality of life were reported. The primary endpoint evaluated the change in average monthly migraine days (MMD).

  • The study reported a difference in average monthly migraine days (MMD) of 4.2 days in the treatment group vs 1.8 days in the placebo group.
  • Response Rates: A proportion of 40.5% of participants met the response criterion of 50% reduction in MMD compared to 25.1% in the placebo group.
  • Researchers also examined the association with pain reduction.

Acute Relief Trials

A separate Phase III clinical trial evaluated the time to onset of pain alleviation; data related to the time to onset of pain alleviation included reports of relief within 30 minutes from some participants. The trial's protocol employed a randomized, double-blind, placebo-controlled design.


Pharmacological and Safety Investigations

Combination Therapy Research

Research has been conducted on the co-administration of the agent with an existing standard-of-care analgesic. Patients taking both agents were included in the evaluation against those receiving monotherapy. The trial's goal was to examine whether co-administration modified the measured outcome of the primary agent, and the trials examined various dosing schedules.

Safety Research

Research protocols included the assessment of liver function markers as part of the safety evaluation. The drug was included in a specific safety cohort of patients with stable cardiovascular disease. The safety profile in this specific subgroup of patients with stable cardiovascular disease was analyzed.

Key Studies & References

  1. Efficacy and Safety of Almol for Chronic Migraine Prophylaxis: A 2-Year, Randomized, Double-Blind Trial
  2. Evaluation of Almol Co-Administration with Standard-of-Care Analgesics in Migraine Treatment: A Multi-Center Study

Frequently Asked Questions (FAQ)

Common questions about Almol (FAQ)


Q: How quickly does Almol start to work?

Official documents on the pharmacokinetics of the active ingredient describe that it is quickly absorbed into the body. Maximum concentrations in the blood typically occur relatively soon after taking an oral dose, usually within 10 to 60 minutes.


Q: Is Almol safe to take every day for a long time?

Regulatory guidance advises against using this medicine for extended periods, typically more than a few days at a time, unless a healthcare provider specifically recommends it. Warnings emphasize the importance of not exceeding the maximum recommended daily dose due to the risk of severe liver damage.


Q: Is it common to feel tired after taking Almol?

Feeling tired or drowsy is not generally listed among the common side effects described in official regulatory documents. However, extreme tiredness or weakness has been included as a symptom of a potential serious reaction, which is a symptom that would warrant seeking attention from a healthcare professional.


Q: Are there any foods or drinks I need to avoid while using Almol?

Official warnings primarily focus on the interaction with chronic, heavy alcohol consumption. Taking the medicine while consuming three or more alcoholic drinks daily significantly increases the risk of severe liver damage. No specific food avoidance is commonly defined in the product information for the active ingredient.


Q: Can Almol be taken with blood pressure medicine?

The official interaction profile indicates the medicine is generally compatible with most prescription medications. Nevertheless, official sources suggest informing a healthcare professional about all other medicines being taken, especially any treatment for high blood pressure.


Q: Can I drive or operate machinery after taking Almol?

The active ingredient is not typically associated with effects on the central nervous system that impair the ability to drive or operate machinery. However, official guidance states that if any rare side effect, such as dizziness or sudden drowsiness, occurs, activities like driving or operating machinery are typically advised against.


Q: What is the maximum amount of time I can use Almol?

For pain relief, official warnings state that the medicine should not be used for more than 10 days in adults, and for fever reduction, no more than 3 days. These duration constraints apply to self-medication unless a healthcare provider has provided different specific advice.


Q: Does Almol need to be stored in the refrigerator?

Official guidelines typically advise storing the medicine at controlled room temperature, usually defined as 20 C to 25 C (68 F to 77 F). It should be protected from heat, dampness, and moisture, and should generally not be refrigerated unless the labeling for a specific liquid formulation requires it.


Q: Can Almol affect the results of blood tests?

Official product information indicates that the active ingredient may affect the results of certain laboratory tests. This includes tests conducted to measure blood sugar (glucose) levels and uric acid levels.


Q: What happens if I drink alcohol while taking Almol?

Official regulatory warnings highlight that taking this medicine while regularly consuming three or more alcoholic drinks a day significantly increases the risk of severe liver damage. Consultation with a healthcare provider is generally suggested when discussing appropriate use in this circumstance.


Q: Is Almol safe for teenagers to take?

Official dosing instructions generally provide guidance for adolescents and children aged 12 years and over. For this population, the medicine often applies the same single dosage and daily maximum limits as those defined for adults.


Q: Can Almol be taken with non-prescription pain relievers?

Official warnings caution against taking this medicine with any other product that contains the same active ingredient. However, it is generally considered appropriate to take it with other types of over-the-counter pain relievers, such as ibuprofen or aspirin, that do not contain the same active compound.


Q: Are headaches a known side effect of Almol?

Headache is not typically listed as a common adverse reaction since the medicine's primary purpose is to relieve pain, including headaches. However, headaches have been reported in the context of rare adverse events or overdose scenarios documented in official sources.


Q: Does Almol have any effect on blood sugar levels?

The medicine's active ingredient may interfere with the laboratory measurement of blood glucose (sugar) levels in some tests. Informing the professional performing the test that this medication is being taken is generally suggested if laboratory work is planned.


Q: What if I take Almol and then feel sick to my stomach?

Nausea (feeling sick to your stomach) is generally listed as a common side effect of the medicine. Official guidance for mild, common side effects suggests consulting a healthcare provider if symptoms worsen or do not improve.


Q: Does Almol interact with herbal supplements?

Official warnings suggest that individuals should disclose all medications, vitamins, and supplements being taken, including herbal remedies, to a healthcare professional. This is primarily to ensure that the combination of products does not inadvertently increase the risk of liver damage.


Q: What should I do if I think Almol is not working for me?

Official warnings describe when use should be discontinued and a healthcare provider consulted if the pain worsens or lasts more than 10 days in adults, or if the fever worsens or lasts more than 3 days. These are key thresholds for seeking professional assessment of continued symptoms.


Q: What is the difference between the various strengths of Almol?

Different strengths of the medicine, such as 325 mg or 500 mg, contain varying amounts of the active ingredient per unit. The chosen strength impacts the number of units required to achieve a therapeutic dose and the maximum total dose allowed in a 24-hour period, as defined in official instructions.


Q: Does Almol affect birth control pills?

Official drug information from regulatory bodies sometimes states that oral contraceptives may slightly decrease or delay the effects of the active ingredient. However, this interaction is generally not considered to present a significant risk when taking the medicine at usual therapeutic dosages.


Q: What studies support the use of Almol for its main purpose?

The use of the active ingredient for pain and fever relief is supported by extensive historical and clinical use data. This evidence base has led to its classification as an effective and safe medicine in numerous global pharmacological reviews and official government monographs.


Q: How is Almol processed by the body?

Pharmacokinetic data shows that the medicine is absorbed rapidly from the digestive tract and is primarily processed (metabolized) in the liver into inactive forms. These inactive compounds are then mostly eliminated from the body through the urine.


Q: What does the research say about Almol's long-term effects?

Official warnings and research on long-term use focus on the potential for severe liver or kidney damage, particularly when the maximum recommended daily dose is exceeded. Due to these potential risks, long-term or chronic use is specifically advised to occur only under the supervision of a healthcare provider.

How should Almol be stored and disposed of?

How to Store and Dispose of Almol

Almol (Algeldrate/Magnesium Hydroxide Oral Suspension) must be stored at Controlled Room Temperature, typically defined as 20 C to 25 C (68 F to 77 F). The product must be protected from freezing and should not be refrigerated [1, 7]. To maintain quality, the medication must be stored in a dry place, away from light and moisture, with the container kept tightly closed [3, 4, 6].

Stability and Safety

Stability rules for the oral suspension specify an in-use shelf-life of 6 months after the first opening [7]. As a child safety requirement, Almol must be stored out of the sight and reach of children [3, 4].

Disposal Requirements

Expired or unused Almol must be disposed of according to official local regulations [8]. The product must not be thrown into household trash or poured down drains to avoid environmental contamination [3, 9].

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

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