Bioral

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Bioral

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Method of action: Anti-Inflammatory

Treatment option: Stomatitis

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 Bioral

Property Description
Active ingredient Carbenoxolone Sodium
Pharmacological class Anti-Ulcer Agent (Gastroprotective Agent)
Form Oral Tablets/Capsules, Topical Gels/Creams
General purpose Support healing of mucosal ulcerations and erosions
Origin Semi-synthetic derivative of licorice root constituent

What Type of Medicine is Carbenoxolone?

Bioral is the trade name for a medicine containing the active ingredient Carbenoxolone Sodium. It is formally classified as an Anti-Ulcer Agent and Gastroprotective Agent, placing it under the Anatomical Therapeutic Chemical (ATC) code A02BX01. The general purpose of this substance is to support the body’s natural processes for healing various ulcerations and erosions that occur on mucosal surfaces, particularly within the digestive tract. The medicine is established in clinical use for its protective and restorative effects on the digestive system's inner layer.

Bioral's Composition and Differentiation

Carbenoxolone is a semi-synthetic derivative of glycyrrhetinic acid, which is the major triterpenoid component extracted from the licorice root (Glycyrrhiza glabra). This distinct origin differentiates it from purely synthetic compounds, as it modifies a natural anti-inflammatory structure. As a single-ingredient product, Carbenoxolone Sodium is supplied in versatile dosage forms, including oral tablets and capsules intended for addressing conditions like gastric ulcers, and topical gels or creams for localized surface conditions, such as oral ulceration. This range of presentations enables both oral administration and topical application, constituting a key differentiating factor in its pharmacological profile.

How Does Carbenoxolone Generally Function?

The general function of Carbenoxolone is to enhance local tissue defenses, thereby promoting repair and providing an anti-ulcerogenic benefit. Its action involves promoting the stabilization and increased production of the protective mucus barrier that shields the gastric and esophageal lining. Furthermore, the compound is known to influence the enzyme 11beta -hydroxysteroid dehydrogenase type 1 (11beta -HSD1), which effectively boosts localized anti-inflammatory response signals directly at the site of mucosal damage, creating an environment favorable for the tissue’s natural regeneration. The compound's anti-ulcerogenic properties are supported by its mechanism of strengthening the mucosal barrier.

What side effects are possible with Bioral?

Possible Side Effects and Safety Information

The official safety documentation for Carbenoxolone Sodium (Bioral) outlines a profile where adverse reactions are primarily linked to the medicine’s systemic influence on fluid and electrolyte balance. The regulatory framework classifies these effects by frequency and the body systems involved, emphasizing a pattern of cardiovascular and metabolic risks.

Officially Documented Adverse Reactions

The most frequent adverse reactions are typically classified as Common in regulatory product information. These common effects are consequences of sodium and water retention and potassium loss:

  • Vascular and General Disorders: Fluid retention, Edema (swelling), and Hypertension (raised blood pressure).
  • Metabolism and Nutrition Disorders: Hypokalemia (low serum potassium levels).
  • Musculoskeletal System: Muscle weakness, potentially resulting from severe Hypokalemia.

Serious Reactions and Safety Constraints

Regulatory documents highlight that the severity and incidence of these adverse reactions are dose-dependent and associated with prolonged exposure during long-term therapy. Documented serious adverse reactions include Severe Hypokalemia and the risk of precipitating or exacerbating Cardiac Failure, particularly in susceptible individuals.

Safety constraints are explicitly defined for vulnerable populations. The medicine is often contraindicated in patients with severe pre-existing conditions such as severe cardiac failure, severe renal failure, or uncontrolled hypertension, due to the heightened risk of adverse outcomes.

Overdose and Emergency Response

Overdose and when to seek help

Suspected overdosage with Bioral requires seeking immediate medical attention. The official regulatory profile clearly indicates that overexposure can lead to serious, dose-dependent toxicities affecting multiple major body systems.

Documented Clinical Manifestations and Outcomes:

Overdosage is associated with non-specific clinical signs such as vomiting, headache, drowsiness, and fast heart beat (tachycardia). Severe outcomes documented in regulatory and clinical review include the potential for acute renal failure and structural kidney damage. The risk of hepatotoxicity, signaled by yellowing of the skin or eyes (jaundice), is also present. Other serious manifestations may include systemic hypertension, seizure, and coma. Furthermore, pediatric patients may be more susceptible to the most severe complications following overexposure.

Emergency Action and Supportive Management:

It is mandated that individuals experiencing or suspecting an overdose contact emergency services immediately. Official information confirms that there is no specific pharmacological antidote available. Therefore, clinical management is restricted to symptomatic and supportive treatment. This standard of care may include procedures like gastric lavage or activated charcoal administration to limit further absorption. Close hospital monitoring, involving the assessment of renal function and cyclosporine blood concentrations, is required to manage the progression of toxicity.

Therapeutic Uses of Bioral

Bioral (containing cyclosporine) is applied across domains where additional symptomatic support is needed, particularly in clinical settings that involve acute or unstable symptom patterns, such as those related to conditions where functional stability becomes affected. Its use is considered relevant in contexts involving heightened systemic burden, and it may assist with maintaining functional stability during symptomatic phases associated with organ support.

Beyond its use in transplant-related clinical settings, this medication is commonly used across conditions presenting with acute episodes. Bioral is relevant for easing symptoms associated with Severe Psoriasis, Severe, Active Rheumatoid Arthritis, Endogenous Uveitis, Nephrotic Syndrome, and Severe Atopic Dermatitis. Its application supports patients during episodes of heightened discomfort and helps address symptom clusters that may become intense or disruptive. Its application contributes to easing the overall symptom load during symptomatic periods, as it may assist with maintaining functional stability.


Quick Fact: Supports management of symptoms related to inflammatory or irritative states

Eligibility and Restrictions for Use

Eligibility for Bioral (Cyclosporine): Official Regulatory Status

Regulatory documents establish clear eligibility criteria based on patient status, age, and pre-existing conditions. Bioral, containing cyclosporine, is officially approved for use in Adults and Children for conditions like Solid Organ Transplantation prophylaxis and Nephrotic Syndrome. Adults are additionally approved for treating severe Rheumatoid Arthritis and Psoriasis when standard therapies fail.

Classification Regulatory Rule Status
Absolute Contraindications Hypersensitivity to ingredients, concurrent use of St John's Wort. Prohibited
Comorbidity Exclusion Non-transplant patients with Uncontrolled Hypertension, Malignancy (except non-melanoma skin cancer), or Uncontrolled Infection are ineligible. Prohibited
Organ Function Status Patients with Impaired Renal or Hepatic Function are required to undergo frequent monitoring and may require dose adjustment. Restricted
Lactation Status The medicine is not recommended for use by breastfeeding mothers due to its excretion into human milk. Not Recommended
Age Groups Children are approved for transplantation and nephrotic syndrome. Older Adults (65+) must have renal function monitored with particular care. Established

Eligibility is defined by regulatory agencies across these domains, with the severity classified as Contraindicated for absolute prohibitions or Restricted where use requires mandatory medical oversight.

What should I know about interactions with other medicines?

The official regulatory profile for Bioral (Carbenoxolone Sodium) interactions is defined by its documented pharmacodynamic effects on electrolyte and fluid balance.

Documented Interaction Patterns

Antagonistic and Restricted Combinations

Interacting Substance Official Restriction / Effect Classification Basis
Spironolactone Avoid concurrent use; antagonizes the anti-ulcer efficacy of Bioral, resulting in decreased therapeutic effectiveness of both agents. Pharmacodynamic Antagonism

Additive Pharmacodynamic Effects

Co-administration with certain substances is documented to increase the risk of specific regulatory concerns, primarily related to Bioral's ability to promote sodium retention and potassium loss:

  • Potassium-depleting Diuretics: Combinations with agents such as Thiazide or Loop diuretics result in an additive effect, substantially increasing the risk of hypokalaemia (low blood potassium).
  • Licorice Root: Consumption of high amounts of Licorice root (Glycyrrhiza glabra) is documented to pose an additive risk. This herbal substance contains compounds with similar mineralocorticoid-like activity, intensifying the effects of potassium loss and fluid retention.
  • Digitalis Glycosides: The combination with these medicines carries an increased risk of toxicity dueating to Bioral-induced hypokalaemia.

Population-Specific Notes

The clinical significance of these interactions is officially noted as heightened in elderly patients and individuals with pre-existing cardiac, hepatic, or renal impairment.

Mechanism of Action

Bioral, containing Cyclosporine, functions as a Calcineurin inhibitor, primarily targeting T-lymphocytes within the lymphatic tissue and circulation. Intracellularly, Cyclosporine forms a high-affinity complex with the cytoplasmic receptor protein, cyclophilin (peptidyl-prolyl cis-trans isomerase A).

This Cyclosporine-cyclophilin complex acts as a specific inhibitor of the serine/threonine protein phosphatase, calcineurin.

Inhibition of calcineurin prevents the dephosphorylation of the transcription factor, Nuclear Factor of Activated T-cells (NFAT). Consequently, NFAT remains sequestered in its phosphorylated state within the cytoplasm, blocking its translocation into the nucleus. This prevents the nuclear transcription of genes encoding various lymphokines, most notably Interleukin-2 (IL-2), as well as Interleukin-4 and Gamma-Interferon.

The resulting reduction in IL-2 synthesis prevents the progression of the T-cell activation cascade, leading to the suppression of T-lymphocyte proliferation and the diminished activation of effector T-cells. The system-level physiological consequence is a profound immunomodulation characterized by a decrease in cellular immune responsiveness.

Dosage and Administration Information

How to Use Bioral

The usage of Bioral, which contains Carbenoxolone Sodium, is defined by a dual-route approach based on the condition being addressed. The medicine is used for both oral administration, typically targeting internal mucosal surfaces like gastric ulcers, and topical/cutaneous administration for localized lesions such as oral ulceration.


Administration Guidelines

Feature Details
Route of Administration Oral for systemic effect; Topical for localized effect.
Standard Dosing Schedule Oral Use: Regimens typically begin with an initial dose of 100 mg per administration, often followed by a transition to a 50 mg maintenance dose.
Timing in relation to Meals Oral Use: Best administered before meals. Topical Use: Applied four times daily, timed after meals and at bedtime to maximize contact time.
Course Duration Oral Use: Typically a short-term course of 4 to 6 weeks for ulcer treatment. Topical Use: Should not exceed two weeks without re-evaluation.

Contextual Use Constraints

The frequency pattern is a divided daily use regimen, typically three times daily for the oral form and four times daily for the topical form. This structured use pattern defines the medicine as a short-term intervention with a clear administrative endpoint.

For specific populations, older adults may require a lower oral dosage. The topical gel is used for administration in children over 3 years of age. Furthermore, use of the oral form in ambulatory settings requires regular clinical observation of parameters like serum electrolytes and blood pressure, ensuring careful monitoring is integrated into the administration protocol.

Recent Clinical Evidence

Research evidence / Overview of studies for Bioral

Evidence for use in Stomach (Gastric) Ulcer Healing

The research base for Carbenoxolone Sodium was studied for stomach ulcers in clinical investigations that included randomized controlled trials (RCTs). This research primarily focused on adult patients with ulcers confirmed by either endoscopy or X-ray imaging. These studies were designed to measure whether the substance was associated with changes in the healing process compared to patients receiving an inactive substance (placebo).

Research examined outcomes related to physical discomfort, monitoring patient-reported symptoms such as pain frequency and severity. Investigators also used objective measures to track the complete ulcer closure over defined time intervals. Studies report how symptoms evolved in the observed populations, where patterns related to ulcer healing were monitored.

What remains uncertain is the current context of this evidence. Most of the available data derives from earlier research, and long-term effects are not fully established. Specifically, there is limited information for long-term outcomes regarding whether the substance was studied for ulcer recurrence after the initial healing phase has been completed.

Evidence for use in Duodenal Ulceration

Research also explored the substance in the context of duodenal ulceration (ulcers located in the small intestine). These controlled clinical trials research examined how the substance was associated with outcomes reflecting daily functioning or activity level as patients reported them, alongside objective measurements of healing. Findings were mixed, and the reported patterns showed variability across studies.

Research on Topical Use for Oral Ulcers

For localized conditions like canker sores (aphthous ulceration), research utilized a topical gel or cream formulation. These controlled clinical investigations were short-term and included adult volunteers. Research described patterns related to changes in patient-reported pain compared to the placebo group. The evidence for the topical formulation is highly restricted to short-term follow-up, and sample sizes were modest, meaning the results apply only to the populations studied.

What is Still Uncertain or Under-Researched

The research provides insight into short-term changes, but several areas remain uncertain. Evidence quality varies across studies, partly due to the historical nature of much of the core evidence. Long-term effects are not fully established, and long-term outcomes related to preventing relapse are not well characterized. Comparative evidence is lacking regarding how the substance's observed patterns relate to contemporary standard treatments.

Key Studies & References Carbenoxolone: mechanism of action, clinical efficacy, and safety.

Frequently Asked Questions (FAQ)

Common questions about Bioral (FAQ)

Q: What is Bioral generally prescribed for?

Official documentation indicates that this medication has two primary purposes depending on the active ingredient. Bioral containing Carbenoxolone Sodium is approved for treating peptic ulcers. The form containing Cyclosporine is prescribed to prevent organ transplant rejection and to treat severe autoimmune conditions.

Q: Is Bioral a type of antibiotic?

No. Official classification describes Cyclosporine, one of the potential active ingredients, as an immunosuppressant drug. This classification means the medicine works by moderating the body's immune response, not by killing bacteria like an antibiotic.

Q: Is Bioral a controlled substance?

According to the official regulatory classification in the United States, Cyclosporine is not categorized as a controlled medication. It is a prescription-only drug due to the seriousness of the conditions it treats and the required monitoring.

Q: Are there any specific vitamins or supplements that interact with Bioral?

Regulatory sources list specific interactions with certain herbal substances. For Cyclosporine, concurrent use of St John's Wort is prohibited. For Carbenoxolone's effects may be intensified by high consumption of Licorice root.

Q: Can Bioral be taken while pregnant or breastfeeding?

Regulatory information advises caution during pregnancy. Specifically, Carbenoxolone Sodium topical gel is generally not recommended during the first trimester. The full prescribing information provides details regarding risk assessment.

Q: What happens if I miss a dose of Bioral?

Official product information on use describes instructions for a missed dose, which often involves skipping the missed dose if it is close to the next scheduled administration. The labeling cautions against doubling the dose.

Q: Is it normal to feel tired after starting Bioral?

Fatigue (tiredness) is documented as a reported side effect of this medicine. It is listed as a common effect for Cyclosporine and as a less common effect for Carbenoxolone Sodium in official product information.

Q: How long does Bioral stay in your system? (Half-life/PK)

The time the drug takes to be eliminated from the body is described in regulatory pharmacokinetics (PK) data. For Cyclosporine, the drug is eliminated from the blood with a terminal half-life of approximately 8.4 hours, though this can vary between 5 and 18 hours.

Q: Are there any food or drink restrictions while taking Bioral? (General restrictions)

Yes, specific restrictions are noted in the labeling. Official labeling indicates that Oral Cyclosporine is not intended to be taken with grapefruit juice. Consistency in taking it with or without food is also important. For Carbenoxolone, avoidance of alcohol and spicy or irritating foods is sometimes recommended in the context of ulcer healing.

Q: Does Bioral make you feel dizzy or lightheaded?

Dizziness is a documented neurological side effect of this medicine. Official regulatory information lists dizziness as a common side effect of Cyclosporine and a less common effect of Carbenoxolone Sodium.

Q: Is there a generic version of Bioral available?

The active ingredient Cyclosporine is widely available in lower-cost generic versions. These generic formulations are available as both modified and non-modified types, depending on the specific prescription.

Q: What is the mechanism of action of Bioral in simple terms?

The mechanism of action depends on the active ingredient. Cyclosporine works by suppressing the immune system to prevent organ rejection. Carbenoxolone Sodium acts locally to strengthen the protective mucosal barrier in the stomach and promote ulcer healing.

Q: Are headaches a common side effect of Bioral?

Yes, headaches are documented in the adverse reaction profile. Official regulatory information indicates that headache is a common side effect of Cyclosporine and a less common neurological side effect of Carbenoxolone Sodium.

Q: Can Bioral cause changes in mood or anxiety?

Official labeling for Cyclosporine notes restlessness as a potential adverse reaction. Furthermore, systemic steroids are often co-administered with Cyclosporine, and their regulatory text warns of the potential for psychiatric adverse reactions, including changes in mood.

Q: Does Bioral have any known long-term effects on the liver?

Yes, regulatory documentation warns of risks related to liver function. Cyclosporine carries a Boxed Warning for the risk of hepatotoxicity (liver damage). Carbenoxolone Sodium may cause mild elevations in liver enzymes, requiring ongoing monitoring.

Q: Is Bioral used to prevent certain conditions?

Yes, the use depends on the active ingredient. Cyclosporine is explicitly indicated for the prophylaxis (prevention) of solid organ transplant rejection. In contrast, Carbenoxolone Sodium is used primarily for the healing of existing active ulcers.

Q: What types of alcohol interactions are listed for Bioral?

In the context of ulcer treatment, the use of Carbenoxolone Sodium sometimes includes a recommendation to avoid alcohol, as it can be an irritant. For Cyclosporine oral solution, official instructions often warn against mixing it with milk or other restricted liquids.

Q: Can Bioral cause skin rashes or allergic reactions?

Yes, this is addressed in safety documents. Cyclosporine is strictly contraindicated (prohibited) in patients with known hypersensitivity to the drug. Skin rash is also noted as a rare side effect of Carbenoxolone Sodium.

Q: What is the official regulatory classification of Bioral (e.g., Schedule 4)?

Official sources classify Cyclosporine as a Prescription only (Rx) medicine. It does not fall under the schedule classifications for controlled drugs used in the US.

Q: Is Bioral primarily for a temporary condition or a chronic one?

Both. The use of Carbenoxolone Sodium is typically a short-term course for ulcer healing. However, Cyclosporine is prescribed for chronic conditions like transplant maintenance and long-term autoimmune diseases.

Q: Can I stop taking Bioral suddenly, or does it require tapering?

For chronic conditions treated with Cyclosporine, the prescribing information notes that treatment may require dose reduction if there is an unacceptable decrease in kidney function. Labeling indicates that any discontinuation or change in dose is intended to be managed under medical supervision.

Q: Why is Bioral available only by prescription?

Bioral is restricted to prescription use because it is classified as a high-risk medication, particularly in its Cyclosporine form (immunosuppressant). Its safe and effective use requires professional medical supervision and blood monitoring.

Q: Can Bioral be crushed, chewed, or opened?

Regulatory instructions state that Cyclosporine oral capsules are intended to be swallowed whole and are not to be chewed. The oral solution is intended to be mixed with juice or other liquids as directed.

Q: What is the official purpose of the black box warning on Bioral's labeling?

The Boxed Warning, the most serious alert for a drug, is included for Cyclosporine to highlight the risks of systemic hypertension (high blood pressure), nephrotoxicity (kidney damage), and increased susceptibility to infection and malignancy.

How should Bioral be stored and disposed of?

Storage and Disposal Requirements for Bioral (Cyclosporine)

Bioral must be stored at controlled room temperature, typically between 15 C and 25 C (59 F and 77 F). The medicine must not be refrigerated and must be kept in its original, tightly closed container to protect it from light.

Classification Requirement
Temperature Store between 15 C and 25 C
Refrigeration Do not refrigerate oral solution
Stability Discard oral solution 60 days after opening
Child Safety Keep out of the sight and reach of children

All unused or expired Bioral must be disposed of in accordance with local/national pharmaceutical waste regulations. The product should not be released into the environment or poured into drains.

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

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