Gaviscon Nourrisson

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Gaviscon Nourrisson

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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 Gaviscon Nourrisson

Property Description
Active ingredient Sodium Alginate, Sodium Bicarbonate
Form Oral Suspension or Powder for Oral Solution
Pharmacological class Raft-forming agent / Antacid
Common use Management of reflux and regurgitation
Origin Derived from natural polysaccharide (algae)

What Type of Medicine is Gaviscon Nourrisson?

Gaviscon Nourrisson is a pharmaceutical preparation classified as an alginate-based raft-forming agent and a local antacid, specifically positioned for the infant and young child population to manage symptoms associated with gastro-oesophageal reflux disease (GERD). Its primary classification falls within the pharmacological group addressing peptic ulcer and reflux disease (ATC code A02BX13). This medicine functions through a physical, non-systemic mode of action, operating exclusively within the digestive tract without needing to be absorbed into the bloodstream. The mechanical barrier effect provided by alginates is utilized in the management of GERD.

Composition and Form: Sodium Alginate and Bicarbonate

The medicine is a combination product centered on two essential components: Sodium Alginate and a carbonate source, typically Sodium Bicarbonate. Sodium Alginate is a key ingredient derived from a natural polysaccharide found in brown algae. The preparation is distinguished by its suitability for pediatric use and is available for oral administration as either a Powder for Oral Solution in sachets or as an Oral Suspension (drinkable solution). The functional co-presence of Sodium Bicarbonate is vital for creating the necessary buoyancy for the raft-forming effect.

General Purpose: The Physical Barrier Principle

The general purpose of the preparation is to establish a robust, mechanical defense that physically restricts the upward movement of stomach contents. This is achieved as the ingredients rapidly form a cohesive, low-density viscous gel—the "raft"—on the surface of the gastric contents. This combination creates a stable floating barrier that remains in place during reflux episodes. By forming this barrier, the product minimizes the opportunity for irritating acidic fluids to contact the sensitive lining of the esophagus, thereby providing localized relief from the symptoms of acid reflux.

Regulatory References

  1. European Medicines Agency (EMA)

What side effects are possible with Gaviscon Nourrisson?

The safety profile for Gaviscon Nourrisson (Infant) centers on its physical mechanism of action and its sodium content, with most users experiencing no side effects.

Documented Adverse Reactions

Side effects are generally infrequent, but two system-organ classes are involved in reported adverse events:

  • Gastrointestinal Disorders (Frequency: Very Rare/Not Known): Constipation and diarrhea have been reported. More serious, but less common, effects include flatulence, abdominal distension, and intestinal obstruction due to the potential for the formation of an intragastric mass, sometimes referred to as a bezoar (or gavisconoma), comprising the alginate and milk protein. Overdosage may contribute to this risk.
  • Immune System Disorders (Frequency: Not Known): Hypersensitivity reactions, including rash, pruritus (itching), and in very rare cases, serious systemic reactions like anaphylaxis, are possible with alginate preparations.

Population-Specific Contraindications and Safety Restrictions

Safety data emphasizes caution in specific vulnerable populations and use cases. The medicine is officially contraindicated in infants with:

  • Known or suspected impairment of renal function, due to the sodium content which may increase the risk of hypernatremia (abnormally high blood sodium levels).
  • Intestinal obstruction or established diarrhea.
  • Hypersensitivity to the active ingredients (sodium alginate, magnesium alginate).

Special Warnings and Limitations:

  • The product contains sodium, which must be considered for infants on a controlled sodium or low-salt diet. The maximum daily dose represents a significant portion of an adult's recommended daily intake.
  • It must not be used simultaneously with other feed thickening agents or infant milk preparations containing a thickening agent, as this could lead to excessive thickening of stomach contents and an increased risk of obstruction.
  • A medical review is recommended if symptoms persist or worsen after seven days of treatment, or if there are significant or sustained changes in bowel habits.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information describes the overdose profile for this alginate-antacid preparation primarily in terms of its physical effects and compositional risks, not systemic toxicity.

Documented Overdose Manifestations

Domain Official Regulatory Statement
Physical Effects Overdose may lead to gastric distension or the formation of an intragastric mass (bezoar), which can potentially result in intestinal obstruction
Electrolyte Risk The formulation's sodium content poses a risk of hypernatraemia in cases of overdose, particularly in infants with known or suspected impaired renal function

Emergency Actions and Management

Immediate medical attention must be sought upon suspicion of overdose or if symptoms of discomfort or distension occur. Regulatory documents state that management is symptomatic and supportive, consistent with the fact that no specific antidote is known for alginate overdose.

In cases involving the formation of an intragastric mass, adequate fluid intake may be advised to promote spontaneous resolution. Monitoring of fluid and electrolyte balance is required, especially when hypernatraemia is a concern, as noted in the official prescribing information for vulnerable pediatric patients.


Official Overdose Conclusion

Regulatory agencies define the clinical course of an overdose primarily by the potential for serious mechanical complications and the need for strict electrolyte monitoring.

Therapeutic Uses of Gaviscon Nourrisson

Gaviscon Nourrisson is used for managing the symptoms of gastroesophageal reflux (GER) in infants and young children. It is indicated for easing distress and supporting the management of symptoms linked to the movement of stomach contents back into the esophagus.


Easing Regurgitation and Spitting Up

Gaviscon Nourrisson is applied across domains where additional symptomatic support is needed. It is commonly used to help with gastric regurgitation, gastro-oesophageal reflux (GOR), and reflux associated with hiatus hernia. It is generally applied when groups of symptoms, such as regurgitation episodes, create noticeable interference with the child's comfort. The preparation is intended to support functional stability and improved comfort during periods of heightened symptoms.


Supportive Management of Reflux-Related Distress

It is relevant in contexts marked by increased discomfort due to acid reflux or heartburn symptoms. It offers short-term symptomatic assistance in scenarios where symptoms become temporarily overwhelming. It contributes to easing the overall symptom load, especially across conditions characterized by episodic or fluctuating manifestations.


Quick Fact: Applied for Regurgitation and Distress

Regulatory References

  1. Health Products Regulatory Authority (HPRA) SmPC

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Gaviscon Nourrisson

The eligibility profile for Gaviscon Nourrisson (Gaviscon Infant) is strictly defined by regulatory authorities for the pediatric population.

Category Official Regulatory Statement
Populations for whom use is allowed Infants and young children (generally up to 2 years of age).
Populations for whom use is contraindicated Patients with known or suspected impairment of renal function (kidney issues).
Patients with intestinal obstruction, established diarrhoea, or hypersensitivity to any component.

Age-Related and Condition-Specific Eligibility Rules

Category Official Regulatory Statement
Age-related eligibility rules Not suitable for children over 2 years of age, adults, or the elderly.
Not to be used in infants under one year of age, or in premature infants, except under medical supervision.
Condition-specific eligibility rules Contraindicated if excessive water loss is likely (e.g., due to fever or vomiting).
Not to be used concurrently with other thickening agents or in gastroenteritis where rehydration is the appropriate treatment.
Pregnancy and lactation eligibility status Not relevant (product is for the infant population).

Connection to the overall eligibility profile: The regulatory documents strictly define the eligibility by restricting its use to a narrow pediatric age range. The profile establishes absolute prohibitions, or contraindications, based on specific gastrointestinal issues and, critically, on renal function impairment due to the sodium content. Use is limited or requires medical oversight for premature infants and those under one year of age, ensuring the medicine is used only under labeled conditions.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This medicine's official interaction profile is characterized by its physical, non-systemic mode of action, primarily affecting the absorption of other oral medications in the gastrointestinal tract. Regulatory sources define two main interaction categories: absorption interference requiring timing separation and a structural contraindication with certain formulas.


Timing Requirements for Oral Medicines

The most significant documented interaction requires a time-interval of 2 hours between the administration of Gaviscon Nourrisson and most other orally administered medicinal products. This mandatory separation is required because the alginate-antacid preparation can reduce the absorption and bioavailability of co-administered medicines through physical binding or local pH alteration.

Medicines officially listed as being subject to this reduced absorption include Iron salts, Thyroid hormones (such as Levothyroxine), certain antibiotics (including Tetracyclines and Fluoroquinolones), Digoxin, and Bisphosphonates.


Interaction-Related Restrictions

Co-administration is formally contraindicated with infant milk preparations or products that already contain a thickening agent. Regulatory documentation specifies that combining these agents carries a risk of over-thickening of the stomach contents.

Cautions regarding the product's Sodium content apply to infants with known renal impairment or renal insufficiency, where the sodium load increases the potential for hypernatraemia.

Mechanism of Action

Formation of the Physical Alginate Raft

The mechanism begins as Sodium Alginate encounters the Hydrochloric Acid ( HCl) in the gastric environment, triggering a rapid, pH-dependent cross-linking (polymerization) reaction. This chemical action converts the oral solution into a highly viscous and cohesive gel matrix. This physical transformation creates the main structural component of the barrier, targeting the H^+ ions of the gastric fluid itself.

Synergy for Buoyancy and Positioning

Effective mechanism relies on the coordinated action of the ingredients: Sodium Bicarbonate reacts instantly with HCl to generate Carbon Dioxide ( CO2) gas. This gas becomes trapped within the newly formed alginate gel, imparting the buoyancy necessary for the barrier to float reliably. This buoyant positioning localizes the inert raft at the gastro-oesophageal junction, placing it at the interface between the gastric contents and the oesophagus.

Mechanical Protection of the Mucosa

The presence of the physical raft provides a non-systemic barrier by acting as an inert mechanical obstruction. When a reverse flow of gastric contents occurs, the buoyant barrier is preferentially displaced into the oesophagus, physically impeding the flow of HCl and Pepsin. This action mechanically alters the contact time between the gastric contents and the Oesophageal Mucosa, resulting in a localized alteration of acid exposure duration.

Dosage and Administration Information

How to Use Gaviscon Nourrisson

Administration of Gaviscon Nourrisson is determined by the specific form (powder or suspension), the child's age, and weight, and follows the specifications outlined in the product labeling. The medicine is intended for oral use only.


Dosing and Frequency

Administration typically occurs after each meal or feed to ensure proper effect. The total daily dose should not exceed six administrations in a 24-hour period for the powder form.

Administration Form Dosing Rule
Powder Sachets Administered based on weight: One sachet per feed for infants under 4.5 kg, and Two sachets per feed for infants 4.5 kg and over.
Oral Suspension Dosed by age: from 1 mL (0–1 month) up to 5 mL (over 18 months) after each meal.

Preparation and Administration Specifics

The powder formulation requires precise mixing before use. For bottle-fed infants, the sachet contents are mixed into 115 mL of formula. For breastfed or weaned infants, the powder is mixed with a total of 15 mL of cooled boiled water.

For the liquid suspension, the bottle must be shaken well prior to administration and must not be mixed with milk or food.


Procedural Constraints and Duration

Use is subject to specific age constraints; the powder is not suitable for children over 2 years, and the suspension is not for use in children over 6 years. It is also not to be used in infants with known or suspected renal impairment due to its sodium content. A time interval of 2 hours must be considered between the intake of Gaviscon and the administration of certain other oral medicines. Treatment continues until symptoms resolve, with a medical review required if symptoms persist for more than 7 days.

Recent Clinical Evidence

Gaviscon Nourrisson: Recent Clinical Evidence


Evidence for use in Regurgitation and Reflux in Infants

Research for alginate formulations, such as Gaviscon Nourrisson, was studied in research exploring symptoms related to regurgitation and gastroesophageal reflux (GER) in infants and young children. Short-term Randomized Controlled Trials (RCTs) were often employed, where some infants were monitored while others received the formulation. Studies monitored outcomes related to physical discomfort, which were reported by caregivers over defined time intervals.

These studies examined how episodes of spitting up and vomiting evolved in the observed populations during the study period. Some trials reported patterns where changes in symptoms like regurgitation were observed in the infants receiving the formulation. However, the findings were mixed across various systematic reviews, with some reporting marginal or inconsistent changes in measured symptoms.


Assessment of Objective Outcomes and Study Limitations

In addition to caregiver observations, research has explored objective measures to track the physical actions of reflux. These studies monitored physiological activity by using specialized equipment like pH-metry and Multichannel Intraluminal Impedance (MII). These tools research describes the number of reflux episodes that were monitored. This objective data provides context for tracking physiological metrics.

A key limitation is that many existing trials have small sample sizes and follow-up durations were limited to just a few days or weeks. The research base included various heterogeneous formulations, and objective measurements were typically recorded over only 24 to 48 hours, meaning they provide only a very limited snapshot.


Research Gaps and Clinical Guidance Uncertainty

Research explored its use in general infant and young child populations, including some analysis of preterm infants. However, data for certain groups remain insufficient due to the overall modest sample sizes, and long-term outcomes are not fully established. Evidence quality varies across studies, and the certainty remains low due to these gaps. The limited evidence has led to mixed and inconsistent clinical guidance from major international pediatric societies, even while some national regulators have authorized its use.

Key Studies & References

  1. Gastro-oesophageal reflux disease in children and young people: diagnosis and management (NICE Guideline NG1)
  2. Joint ESPGHAN-NASPGHAN Guidelines for the Diagnosis and Management of Gastroesophageal Reflux Disease in Infants and Children (Referenced for inconsistent guidance)

Frequently Asked Questions (FAQ)

Common questions about Gaviscon Nourrisson (FAQ)

Q: Is Gaviscon Nourrisson the same as infant formula thickeners?

Regulatory documents caution that the product must not be used together with other feed thickening agents or infant milk preparations that already contain a thickening agent. This combination is cautioned against in regulatory documents to mitigate the risk of excessive thickening of the stomach contents.

Q: How long can a baby stay on Gaviscon Nourrisson?

Treatment should continue until the infant’s symptoms resolve. Official guidance states that if symptoms persist or worsen after mathbf7 days of treatment, a medical review is recommended according to regulatory guidance.

Q: Does Gaviscon Nourrisson contain aluminum?

The active ingredients listed in regulatory documents are sodium alginate and magnesium alginate. Aluminum compounds are not listed as active ingredients or excipients in the product composition.

Q: Does Gaviscon Nourrisson interact with iron supplements?

Yes, official guidance states that a mathbf2-hour time interval should be considered between giving Gaviscon Nourrisson and the administration of most other oral medicines, including iron salts (a type of iron supplement). This separation is required as the alginate preparation may reduce the absorption and bioavailability of co-administered oral medicines.

Q: What is the official European regulatory classification for Gaviscon Nourrisson?

In some regulatory jurisdictions, the product is officially designated as a Pharmacy Only medicine. This means it is a non-prescription product, but its supply is restricted to a pharmacy setting.

Q: Are there any long-term safety concerns described for Gaviscon Nourrisson?

The product’s safety profile is based on its physical action within the stomach. Known documented adverse effects are generally rare, but include constipation, diarrhea, and very rarely, intestinal obstruction. Due to the mathbfsodium content, the product is officially contraindicated for use in infants with known or suspected renal impairment (kidney issues).

Q: What is the maximum duration of treatment mentioned in official product information?

Official guidance indicates that treatment should continue until symptoms resolve. A medical review is recommended in official product information if symptoms persist or worsen after mathbf7 days.

Q: Can Gaviscon Nourrisson be used in combination with antacids?

Gaviscon Nourrisson is classified as a raft-forming agent and a local antacid itself. While combining it with other antacids is not explicitly forbidden in regulatory documents, the use of all other oral medicines requires a mathbf2-hour separation due to potential absorption interference.

Q: Does Gaviscon Nourrisson have a bitter taste that babies might dislike?

Official regulatory documents for the liquid form of Gaviscon Nourrisson describe the product as having a banana flavor to improve palatability for infants.

Q: Can Gaviscon Nourrisson be used for simple spit-up that isn't true reflux?

Yes, the product is officially indicated for use in managing both gastric regurgitation (simple spit-up) and gastro-oesophageal reflux in infants and young children.

Q: How quickly can I expect to see an effect after giving Gaviscon Nourrisson?

Due to its rapid physical action, which involves forming a gel barrier on the stomach contents, the medicine is described in some guidance as starting to act or provide relief within about mathbf30 minutes after administration.

Q: Is it normal if my baby seems a little more constipated while using Gaviscon Nourrisson?

Regulatory documents list constipation as a reported adverse reaction associated with the use of this product. If the constipation is significant or sustained, regulatory documents recommend that a medical review be sought.

Q: What age range is Gaviscon Nourrisson specifically intended for?

The medicine is intended for infants and young children. However, official information states that it is not to be used in infants under one year of age or in premature infants mathbfexcept under medical supervision, due to the need for careful dosing and monitoring in this age group.

Q: Can Gaviscon Nourrisson be mixed into water or juice instead of formula or milk?

The powder formulation is designed to be mixed with either formula or cooled boiled water for breastfed or weaned infants. The liquid suspension must be administered as is and should not be mixed with milk or food.

Q: Is there a maximum number of times a baby can receive Gaviscon Nourrisson in a 24-hour period?

For the powder form, the total daily dose should not exceed mathbf6 administrations in a mathbf24-hour period. For the liquid suspension, dosing is generally recommended after each meal or feed.

Q: What if my baby accidentally takes a slightly larger amount than intended?

Regulatory documents indicate that in the event of an overdosage, the patient may experience abdominal discomfort and abdominal distension (bloating). Treatment in this case is symptomatic.

Q: Are there specific food types that might interact with Gaviscon Nourrisson?

Official documents contain a strict warning that the medicine must not be used with infant milk preparations or products that already contain a thickening agent to avoid the risk of over-thickening stomach contents.

Q: Can Gaviscon Nourrisson cause diarrhea?

Regulatory documents list diarrhea as an adverse reaction that has been reported with the use of the product.

Q: Are there different flavors of Gaviscon Nourrisson?

Official regulatory documents for the liquid suspension form of Gaviscon Nourrisson describe the product as having a banana flavor.

Q: Does Gaviscon Nourrisson contain gluten or common allergens?

The powder formulation generally does not contain sugar or gluten. The liquid suspension contains excipients ( methyl parahydroxybenzoate and propyl parahydroxybenzoate) which, in some people, may cause allergic reactions.

Q: Is Gaviscon Nourrisson generally safe to use alongside probiotic drops?

Probiotic drops are considered an orally administered medicine or supplement. Therefore, regulatory guidance states that a mathbf2-hour time interval should be considered between giving Gaviscon and the probiotic drops to mitigate the potential for reduced absorption and bioavailability of the co-administered probiotic.

Q: Does Gaviscon Nourrisson affect the absorption of nutrients from milk or formula?

Regulatory documents focus on the potential to reduce the absorption and bioavailability of co-administered medicines (such as iron salts). Regulatory documents do not specifically list effects on the general absorption of nutrients from milk or formula, though the product’s mode of action is physical and operates within the gastrointestinal tract.

Q: Can Gaviscon Nourrisson be administered to a premature baby?

The patient information leaflet states that the product is not to be used in premature infants mathbfexcept under medical supervision due to the need for careful monitoring in this vulnerable population.

Q: What should I do if my baby shows signs of a possible allergic reaction?

Hypersensitivity reactions, including rash, itching, and in very rare cases, serious systemic reactions like anaphylaxis, are documented as possible. If symptoms are observed, official guidance advises that medical attention should be sought.

Q: How is the medicine stored before it is opened?

The medicine must be kept out of the sight and out of the reach of children and should not be stored above mathbf25 C (or mathbf30 C depending on the specific formulation). This applies to the unopened product.

Q: Are there any research studies about Gaviscon Nourrisson that I can read about?

Official information references research that has focused on short-term randomized controlled trials to examine changes in regurgitation and reflux symptoms. Studies have also utilized specialized monitoring tools such as pH-metry and Multichannel Intraluminal Impedance to track physiological activity.

Q: Can Gaviscon Nourrisson cause increased gas or bloating?

Yes, regulatory documents list flatulence and abdominal distension as adverse reactions that have been reported with the use of the product. Abdominal distension is often referred to as bloating.

Q: Is it considered safe to use Gaviscon Nourrisson with certain types of anti-reflux formula?

Official documentation strictly states the product must not be used simultaneously with any infant milk preparation that already contains a thickening agent to avoid the risk of excessive thickening.

Q: How do doctors monitor a baby's progress while on Gaviscon Nourrisson?

Regulatory documents recommend a medical review if symptoms persist or worsen after mathbf7 days. Monitoring methods used in clinical research include specialized tools such as pH-metry and Multichannel Intraluminal Impedance to track the frequency and nature of reflux episodes.

Q: Does Gaviscon Nourrisson contain sodium?

Yes, regulatory documents state the product mathbfcontains mathbfsodium. For example, the powder form contains approximately mathbf23.9 mg mathbfsodium per sachet, which must be considered for infants with known or suspected renal impairment or those on a controlled low-salt diet.

Q: Is there a concern about the long-term impact on a baby's kidney function?

The product is officially contraindicated in infants with known or suspected impairment of renal function (kidney issues). This is a critical safety measure due to the sodium content, which increases the potential for abnormally high blood sodium levels (hypernatraemia) in these infants.

Q: If the baby misses a dose, is there guidance on what to do?

Guidance for parents suggests that if a dose is missed, it can be given up to an hour after the meal, provided this administration is then separated by at least mathbf2 hours before the next scheduled dose.

Q: Can Gaviscon Nourrisson interact with cough or cold remedies for babies?

Regulatory documents require a mathbf2-hour time interval between giving Gaviscon and the administration of most other orally administered medicines, which would include many common cough and cold remedies, to prevent reduced absorption of the co-administered medicine.

Q: Does Gaviscon Nourrisson contain sugar or artificial sweeteners?

The powder formulation of the medicine mathbfdoes mathbfnot mathbfcontain mathbfsugar. However, the liquid suspension contains Saccharin sodium as an excipient (a type of artificial sweetener).

Q: Is Gaviscon Nourrisson licensed for use in newborns?

Official information states that the product is not to be used in infants under one year of age mathbfexcept under medical supervision. This restriction includes the newborn period.

How should Gaviscon Nourrisson be stored and disposed of?

How to Store and Dispose of GAVISCON NOURRISSONS

Storage and disposal requirements for GAVISCON NOURRISSONS are strictly defined by regulatory labeling to ensure product stability and safety.

Official Storage Conditions

Requirement Specific Instruction
Maximum Temperature Do not store above 25°C
In-Use Stability Must not be kept for more than 30 days after the bottle is opened
Child Safety Keep out of the sight and out of the reach of children

Disposal

Any unused medicinal product or waste materials must be disposed of in accordance with local regulations. This instruction governs the environmental handling of the product, requiring users to follow established pharmaceutical waste procedures rather than discarding the product into general household trash or wastewater.

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

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