Tannalbin

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Tannalbin

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Tannalbin

What is Tannalbin?

Tannalbin is an intestinal astringent used primarily to manage the symptoms of acute, non-specific diarrhea. It is a chemical complex known as tannin albuminate (or albumin tannate), which consists of tannic acid bound to protein (albumin).

Composition and Mechanism

The primary active component of Tannalbin is tannic acid. In its free form, tannic acid is often absorbed in the upper gastrointestinal tract, which can lead to irritation of the stomach lining. By binding tannic acid to albumin, the compound remains stable and inactive as it passes through the stomach.

Once the substance reaches the alkaline environment of the small and large intestines, the complex gradually breaks down, slowly releasing free tannic acid. This controlled release allows the medication to exert its effects locally within the intestines rather than systemically.

Therapeutic Action

Tannalbin works through its astringent properties. When tannic acid is released in the intestines, it interacts with the mucosal proteins of the intestinal wall. This process results in the following actions:

  • Protective Layering: It helps form a thin, protective protein layer over the inflamed intestinal mucosa.
  • Fluid Regulation: By reducing the permeability of the intestinal wall, it helps limit the secretion of water and electrolytes into the bowel lumen.
  • Consistency Improvement: The astringent effect helps to firm the stool and reduce the frequency of bowel movements.

Because it focuses on symptom relief by protecting the intestinal lining and reducing fluid loss, Tannalbin is classified as a supportive treatment for digestive upsets where the primary goal is to normalize bowel function.

What side effects are possible with Tannalbin?

Possible side effects and safety information

The official safety information for Albumin Tannate (Tannalbin) is classified according to the body system affected and the reported frequency of adverse events, based on regulatory documentation from government authorities. This classification separates non-serious, commonly reported reactions from rare, clinically significant events.


Adverse Reaction Classification

Adverse reactions are grouped into System-Organ Classes (SOCs), including Gastrointestinal Disorders, Hepatobiliary Disorders, and Immune System Disorders.

Classification Documented Adverse Reactions
Most Commonly Reported Constipation, Loss of appetite (Anorexia), Liver disorder
Rarely Seen (Initial Symptoms) Shock, Anaphylaxis (Hypersensitivity reactions)

The most commonly reported adverse reactions, such as Constipation and Liver disorder, are associated in official documents with instances of long-term or high-dose administration.


Safety Restrictions and Considerations

The regulatory profile identifies specific safety constraints. Caution is required for patients with a known history of allergy to the medicine, other drugs, or certain foods. Specific pre-existing conditions noted in the labeling that require caution include milk allergy, hemorrhagic colitis, and bacterial diarrhea.

Furthermore, official documentation includes specific safety considerations for use during pregnancy and breastfeeding.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documentation for Tannalbin (Albumin Tannate) provides specific statements regarding the effects of over-ingestion. The regulatory profile defines the overdose risk as low, stating that severe health problems are not known to date as a consequence of taking too much of the drug, and documented instances of poisoning are not known.

Documented Overdose Presentations

The intake of quantities exceeding the recommended dose has been officially associated with a cluster of acute, non-severe manifestations primarily affecting the gastrointestinal system and central nervous system. These include stomach discomfort, vomiting, and dizziness. Regulatory labeling also explicitly notes a specific non-manifestation: the preparation does not lead to constipation (Verstopfungen) even in cases of overdosage.

Emergency Response and Conditional Risks

Consistent with the lack of known severe outcomes, the official regulatory information indicates that special medical measures are not necessary for the management of an overdose. The labeling does not document the existence of a specific antidote. A serious conditional risk is noted: the potential for liver damage (Leberschäden). This complication is documented to occur only if pre-existing injuries to the intestinal mucosa (Verletzungen der Darmschleimhaut) are present, which facilitates the systemic absorption of the active substance. Urgent medical attention should be sought if any severe or unexpected symptoms occur following over-ingestion.

Therapeutic Uses of Tannalbin

What Tannalbin Treats: Main Uses and Benefits

Tannalbin is commonly applied for symptomatic, supportive management across specific acute gastrointestinal domains. It is relevant in clinical settings marked by heightened patient distress caused by common, self-limiting episodes. The compound is generally associated with the therapeutic category of astringents and antidiarrheals, relevant in contexts involving heightened systemic burden.

Relief from Acute Non-Specific Diarrhea

Tannalbin is commonly used across conditions characterized by periods of heightened symptoms, such as acute, non-specific diarrheal diseases and travel-related gastrointestinal upsets. It offers symptomatic relief that helps patients cope more steadily with difficult acute episodes and contributes to easing discomfort during these temporary disturbances. It is applicable within clinical settings that involve acute or disruptive symptom patterns, including cases of non-severe gastroenteritis and mild summer complaints.

“This agent is used to help manage symptoms related to heightened physiological activity and physical discomfort during acute episodes.”

Management of Frequent Loose Stools

The medication helps address symptom clusters that may become intense or disruptive, centered on compromised stool consistency and intestinal hyperactivity, specifically frequent loose or watery stools. By assisting with the management of stool form and reducing frequency, it contributes to easing the overall symptom load, contributing to a reduction in temporary functional strain on the patient and may assist with maintaining a sense of stability during symptomatic periods.

Quick Fact: Relief for Frequent Loose Stools

Tannalbin is commonly used when symptoms, such as the production of watery stools and increased bowel movements, interfere with daily comfort and require short-term symptomatic assistance.

Regulatory References

  1. NIH’s Japan Pharmacopoeia Database

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Tannalbin — official regulatory information

Tannalbin is intended for use in children from 6 years of age, adolescents, and adults.

Contraindicated Populations (Must Not Use)

Use of Tannalbin is contraindicated (prohibited) for the following groups:

  • Individuals with known hypersensitivity or allergy to the active substance (tannin buminate) or any of the other ingredients.
  • Individuals with known hypersensitivity to dairy products.
  • Patients with injuries to the intestinal mucosa.
  • Patients with intestinal diseases involving bloody stools.

Restricted or Not Recommended Populations

  • Children under 6 years of age are not recommended to use the medicine due to a lack of available data for this age group.
  • Pregnancy and Lactation: The medicine must not be taken during pregnancy or while breast-feeding.
  • Duration of Use: The product is restricted to short-term use, not exceeding 3-4 days without consulting a physician. The official eligibility profile is defined by specific disease states (intestinal injury, bloody stools) and physiological status (pregnancy, lactation) that pose an unacceptable risk, alongside age limitations based on regulatory data requirements.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information for Albumin Tannate (Tannalbin) confirms that its primary interaction profile is governed by a physical-chemical pharmacokinetic interaction within the gastrointestinal lumen, not systemic metabolic pathways.

Administration-Timing and Exposure

Co-administration with other oral medicinal products carries a regulatory risk of reduced systemic exposure. This outcome is caused by the non-specific binding and precipitation of the other medicine by the active Tannic Acid component. To mitigate this effect, a mandatory time separation is required by official labels. Tannalbin must be administered at least three hours apart from all other oral medications.


Drug–Food and Substance Restrictions

Specific interactions are documented where the chemical binding affects efficacy or safety:

  • Protein-Rich Foods: The regulatory label restricts use with milk and milk products, which must be avoided during co-administration. The proteins in these substances can bind to the active component, potentially compromising Tannalbin's intended local astringent effect.
  • Specific Substances: Tannalbin is officially restricted from co-administration with Activated Charcoal as the two binding agents may interfere with each other. Chemical incompatibility with substances such as Iron Salts is also noted in product information.

Note: No systemic metabolic (CYP), transporter-mediated, or pharmacodynamic interactions are documented in authoritative regulatory labeling.

Mechanism of Action

The mechanism of Albumin Tannate is a localized, physical-chemical process that relies on targeted activation and the formation of a physical barrier. The compound functions as an inactive prodrug complex and acts purely peripherally within the gastrointestinal lumen.

The action begins as the inactive prodrug complex passes through the stomach unchanged. Upon reaching the alkaline environment of the small and large intestines, it encounters digestive enzymes that hydrolyze the complex, thereby liberating the active component, Tannic Acid. This activation facilitates the localized action of the astringent in the gastrointestinal region of mucosal interaction.

The released Tannic Acid immediately engages in a non-specific chemical reaction with proteins on the epithelial surface, causing them to precipitate and aggregate. This precipitation process creates a dense, tough, mucoadhesive film or physical barrier over the interacting tissue region . This physical barrier limits the interaction between the underlying surface and luminal substances, including irritants, toxins, and osmotic gradients.

The formation of this physical barrier modifies the tissue surface, which influences the signaling dynamics related to local epithelial stimulation. This action consequently results in a reduction in the hypersecretion of water and electrolytes into the lumen. The limitation of fluid efflux contributes to the regulation of intestinal fluid volume.

Dosage and Administration Information

Official Instructions for Use

Tannalbin is administered orally as a tablet. The official instructions for use establish a defined procedural structure for dosage initiation, reduction, and course duration.

Age Group Dosing for Mild Forms Dosing for Severe Forms Maximum Daily Dose
Adults 1–2 tablets, 4–6 times daily, with meals 2 tablets, 1–2 hourly intervals 12 tablets
Adolescents (ge 12 yrs) 1–2 tablets, 4–6 times daily, with meals 2 tablets, 1–2 hourly intervals 12 tablets
Children 6–12 yrs 1 tablet, 4–6 times daily, with meals Not specified 6 tablets

Administration Method and Timing

  • Route: The tablets are taken by ingestion (oral).
  • Preparation: The medicine should be taken with liquid (e.g., a glass of water).
  • Timing: Dosing is often specified to be taken with meals for mild forms.

Procedural and Duration Rules

  • Dose Reduction: For severe forms, the dosage must be reduced once the effect is felt.
  • Course Duration: Do not use the medicine for longer than 3–4 days without medical advice if there is no improvement in symptoms. The total treatment duration should not exceed one week.
  • Age Restrictions: Use is not recommended for children under 6 years due to a lack of data. Children under 5 years may only use the medicine after consultation with a doctor or under medical supervision.
  • Supportive Care: It is essential to ensure adequate replacement of fluids and salts (electrolytes), especially in children and the elderly, as this cannot be replaced by the tablets alone.

Recent Clinical Evidence

Research evidence / Overview of studies for Tannalbin

Overview of Studies for Acute Non-Specific Diarrhea

The evidence base for Albumin Tannate (Tannalbin) was studied for its role in conditions characterized by acute or disruptive episodes of diarrhea. Research has explored how symptoms evolved during periods of heightened activity in study participants. The available evidence includes clinical studies that examined changes in core symptoms, such as stool frequency and stool consistency. Additionally, trials monitored the overall duration of the diarrheal episode to see how symptoms evolved in the observed populations.

The existing research describes that studies focus on typical populations of adults and children experiencing acute diarrhea. However, the data for the mono-preparation (Albumin Tannate alone) evidence is limited, and much of the structured research relies on data derived from either a fixed-combination product containing Albumin Tannate or from studies exploring a similar chemical analogue called Gelatin Tannate.


Types of Clinical Trials and Real-World Data

Structured evidence, such as Randomized Controlled Trials (RCTs), were applied in research exploring how symptoms changed over time for a fixed-combination product that contains Albumin Tannate alongside another active ingredient. Separate RCTs and Systematic Reviews have also been published that explored the evidence base for the related compound, Gelatin Tannate.

Beyond formal controlled trials, Non-Interventional Studies (NIS), which reflect real-world usage in observational settings, were evaluated in certain populations. These studies, which do not involve randomization, are a source of information on how the fixed-combination product was observed in daily-life functioning. This mix of evidence contributes to the broader research landscape, but the certainty remains low for the single-ingredient preparation.


Evidence in Special Populations

Research was evaluated in different populations, including children, to understand how the medicine was observed in various age groups. The evidence describing research in children is derived from studies involving either the fixed-combination product or the Gelatin Tannate analogue. These studies included children across various age ranges, but direct data from research for the Albumin Tannate mono-preparation in pediatric populations are still emerging.

For other groups, such as older adults or those with comorbidities, the existing research is limited to the general adult study populations. Data specifically addressing these particular subgroups are still emerging, and subgroup findings are uncertain.


Research Gaps and Areas of Uncertainty

Despite the available evidence, certainty remains low for several reasons. A primary limitation is that research for the Albumin Tannate mono-preparation does not include extensive recent stand-alone controlled trials. The controlled data was observed in a fixed-combination product containing an additional active ingredient. For the single substance, comparative evidence is limited. Furthermore, when evidence from the related analogue, Gelatin Tannate, is examined, findings were mixed across some studies for certain primary outcomes. This evidence quality varies across studies; the certainty remains low. These research limitations frames mean that while research provides context, it does not determine whether an individual will respond similarly, and the results apply only to the populations studied under those specific conditions.

Key Studies & References

  1. Supplement II to the Japanese Pharmacopoeia on Albumin Tannate (Tannin Albuminate) Monograph
  2. Systematic review and meta-analysis of Gelatin Tannate for acute gastroenteritis in children and adults

Frequently Asked Questions (FAQ)

Common questions about Tannalbin (FAQ)


Q: Is Tannalbin the same as tannin?

A: According to official product information, the active ingredient is Albumin Tannate. This is a complex substance created from the naturally occurring component Tannic Acid (which is a form of tannin) and a protein called Albumin. Therefore, while related, the medicine is not the exact same chemical as Tannic Acid itself.


Q: How quickly does Tannalbin start working?

A: Regulatory documents state that the substance is an inactive prodrug that must first pass through the stomach and be activated by enzymes in the alkaline environment of the intestines. Its effect is localized to the intestinal lining. Therefore, the onset of action generally occurs within the time frame of your intestinal transit.


Q: How long does the effect of Tannalbin last?

A: The effect of the medicine is localized to the lining of the intestine where it forms a physical barrier. This barrier persists until it is naturally expelled or broken down. The duration of this local effect is therefore generally connected to your individual intestinal transit time.


Q: Is Tannalbin considered a natural or herbal product?

A: Official regulatory sources classify Tannalbin as a chemically defined pharmaceutical preparation, or mono-preparation. It is a complex substance derived from the combination of a naturally occurring polyphenol (Tannic Acid) and a protein. The product is not classified as a pure natural or herbal product.


Q: Are there any known long-term side effects from taking Tannalbin?

A: The official labeling specifies that this medicine is intended only for short-term use. Commonly reported adverse reactions, such as Constipation and Liver disorder, have been associated in official documents with instances of long-term or high-dose administration. Official instructions specify short-term use only.


Q: Does Tannalbin interact with common pain relievers like ibuprofen?

A: According to official product information, Tannalbin carries a regulatory risk of reduced systemic exposure for all co-administered oral medications, including common pain relievers. This is due to its physical binding action in the gut. Regulatory guidance recommends a time separation of at least three hours between the two.


Q: Is Tannalbin available over the counter in most countries?

A: Tannalbin is officially classified by the World Health Organization (WHO) and its general availability depends on national regulatory classification. Regulatory documents indicate that in certain markets, such as Germany, it is available over-the-counter (OTC). Availability may vary significantly across different countries.


Q: Can I take Tannalbin if I am taking prescription medication for blood pressure?

A: Official documents warn of a risk of reduced systemic exposure for all oral medications when taken near Tannalbin. This effect is due to physical-chemical binding in the digestive tract. Regulatory guidance recommends a time separation of at least three hours between the two.


Q: Is it normal to feel a change in bowel movements when starting Tannalbin?

A: The medicine is designed to aid in the regulation and normalization of stool consistency, which will result in changes to bowel movements. Official regulatory documents also list Constipation as one of the most commonly reported adverse reactions. This change is related to the drug's physical action in the intestine.


Q: Does Tannalbin have an effect on nutrient absorption?

A: The physical mechanism of Tannalbin involves the non-specific binding and precipitation of proteins on the intestinal surface. Regulatory information notes a restriction for co-administration with other oral medicines due to a risk of reduced systemic exposure. This risk informs the regulatory recommendation for time separation from other ingested substances.


Q: Can people who are lactose intolerant use Tannalbin?

A: Official labeling contraindicates use for those with known hypersensitivity or allergy to dairy products or milk protein. While lactose intolerance is a distinct condition, patients with known sensitivities may need to consult the official excipient list for the product. Inactive ingredients (excipients) in the tablet formulation may contain lactose.


Q: What is the difference between Tannalbin and activated charcoal?

A: Official regulatory documents indicate that both Tannalbin and activated charcoal function as binding agents within the gastrointestinal tract. However, they are officially restricted from co-administration. This is because official labeling notes that the two agents may interfere with each other's intended physical action if taken simultaneously.


Q: Does Tannalbin interact with common vitamins or supplements?

A: The official labeling advises caution because there is a regulatory risk of reduced systemic exposure for all co-administered oral medicines, which includes oral vitamins and supplements. Regulatory guidance recommends a time separation of at least three hours between the two.


Q: Can elderly patients use Tannalbin?

A: Official instructions for use highlight that adequate replacement of fluids and salts (electrolytes) is essential as supportive care, especially in the elderly. While the medicine may be used by the general adult population, official research data specifically focused on the elderly subgroup are noted as being limited.


Q: How does Tannalbin differ from other anti-diarrhea medicines?

A: Tannalbin is classified as an astringent antidiarrheal agent. Its mechanism involves a physical-chemical action where it forms a dense, protective barrier over the irritated intestinal lining. This action differs from that of many other antidiarrheal drugs that primarily work by affecting the speed or motility of the gut.


Q: What should I do if I miss a scheduled dose of Tannalbin?

A: Specific instructions regarding what to do if you miss a scheduled dose are typically provided within the official Patient Information Leaflet or equivalent regulatory document. Specific directions are included with the medication.


Q: Is there a risk of developing tolerance to Tannalbin over time?

A: Due to the drug’s physical-chemical, non-systemic mechanism of action and its restriction to short-term use, official regulatory documents typically do not list developing tolerance as a specific risk or warning associated with the medicine.


Q: Has Tannalbin been studied for other conditions besides its main use?

A: Official regulatory documentation limits the approved indication to the supportive management of acute diarrheal diseases. Information on studies for other, non-approved conditions is generally not included as part of the official drug label required by regulatory agencies.


Q: Does taking Tannalbin affect the results of blood tests?

A: Official documentation indicates that the drug's mechanism is primarily localized to the gastrointestinal lumen and is non-systemic. There is no specific warning or statement in the official regulatory labeling that notes an effect on the results of routine blood tests.


Q: Does Tannalbin cause drowsiness or affect ability to drive?

A: According to the official product information, the medicine usually specifies that it does not affect the ability to drive or operate machinery. This information is based on the drug's non-systemic, localized action.


Q: Can Tannalbin be crushed or dissolved for use?

A: The drug is formulated as a specific prodrug complex designed to pass through the acidic stomach environment intact. Official instructions specify that tablets are taken by ingestion (oral) with liquid. Maintaining the tablet's structural integrity is important for the intended controlled release of the active component in the intestines.


Q: Is Tannalbin safe for short-term use?

A: The official labeling restricts the use of the medicine to short-term treatment only. Use should generally not exceed 3–4 days without consultation if symptoms do not improve. The total course duration should not exceed one week.


Q: Can I use Tannalbin if I have a chronic digestive disorder?

A: The medicine is intended for supportive management of acute, non-severe diarrheal diseases. Official labeling contraindicates its use for certain severe intestinal conditions, such as injuries to the intestinal mucosa or intestinal diseases involving bloody stools. The eligibility profile is defined by these specific contraindications.


Q: Is the research evidence for Tannalbin recent or historical?

A: Official regulatory reviews indicate that recent standalone controlled trial data for the Albumin Tannate mono-preparation are limited. The evidence often relies on studies of fixed-combination products containing additional active ingredients, or on data from a similar chemical analogue.


Q: Can people with kidney or liver issues use Tannalbin?

A: Official documentation notes that Liver disorder is a commonly reported adverse reaction associated with long-term or high-dose use. However, there is no specific contraindication or warning regarding kidney impairment mentioned in the official regulatory texts.


Q: What are the ingredients in Tannalbin besides the active one?

A: The excipients (inactive ingredients) used to formulate the tablet are listed in the official regulatory documentation, such as the Patient Information Leaflet. This list allows patients to check for the presence of ingredients they may be allergic or intolerant to.


Q: Is Tannalbin vegetarian or vegan friendly?

A: Official regulatory documents list all ingredients. The composition includes the active substance, Albumin Tannate, which is derived from the protein Albumin. Patients interested in vegetarian or vegan suitability may need to consult the official list of excipients and the source of the protein used in the formulation.

How should Tannalbin be stored and disposed of?

How to Store and Dispose of Tannalbin?

Storage and disposal must strictly follow the official instructions provided on the regulatory label to maintain product stability and ensure environmental protection.


Storage Conditions

  • Temperature: The product must not be stored above 30, C (thirty degrees Celsius).
  • Light Protection: The active substance requires a light-resistant environment for storage.
  • Child Safety: It is mandatory to keep the medicine out of the sight and out of the reach of children.
  • Stability: The medicine must not be used after the expiration date printed on the packaging.

Disposal Requirements

Official regulations prohibit the disposal of this medicine in wastewater or household waste.

To ensure proper environmental protection, patients are instructed to ask their pharmacist how to dispose of the medicine when it is no longer required.

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

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