Fungusol

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Fungusol

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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 Fungusol

Fungusol is a combination pharmaceutical preparation intended exclusively for topical application to the skin. It's broadly categorized as an Antiseptic, Antifungal Agent, and Dermatological Protectant. This formulation acts non-systemically, meaning its therapeutic activity is localized entirely at the site of application on the skin surface.


Quick Facts: Fungusol Identity

Property Description
Active Ingredients Boric Acid (H₃BO₃) and Zinc Oxide (ZnO)
Form Powder, Ointment, or Cream
Pharmacological Class Antiseptic, Dermatological Protectant
Common Use Relieving minor skin irritation and moisture control
Type Combination Product, Inorganic Origin

Defining Fungusol: Identity and Pharmacological Class

The core of Fungusol is its dual-action combination. As a topical preparation, it is formulated in a base vehicle, such as a cream, ointment, or powder, to ensure prolonged contact with the affected area. Zinc Oxide is widely recognized for its skin protective qualities, often included in pharmacopeias for its ability to prevent or treat minor skin irritation and wetness. Zinc Oxide functions as a skin protectant used to form a physical barrier and block irritants.

Composition and General Therapeutic Purpose

Fungusol leverages the properties of its two key inorganic substances. Boric Acid contributes a mild antiseptic property and acts as a fungistatic agent, which means it helps inhibit the proliferation of certain fungi. This action is clinically recognized for promoting a less favorable environment for microbial growth in topical applications. Zinc Oxide complements this by providing an astringent effect and forming a soothing, protective layer on the skin. The overall purpose of this dual mechanism is to offer a supportive approach to surface-level skin concerns. The combination is pharmacologically supported for its ability to maintain a dry and clean environment. Zinc Oxide formulations provide a protective barrier and promote a drying effect, which aids in reducing moisture and inflammation on the skin surface.

Regulatory References

  1. Topical Drug Administration Route (MedlinePlus)
  2. Pharmaceutical Dosage Forms (MedlinePlus)
  3. Zinc Oxide Topical (MedlinePlus)
  4. National Institutes of Health (NIH)
  5. NIH/MedlinePlus on Zinc Oxide

What side effects are possible with Fungusol?

Possible Side Effects and Safety Information

The official safety profile for this topical preparation is categorized based on the distinction between localized effects from surface application and the serious, multi-systemic risks associated with the systemic absorption of its component, Boric Acid.

Adverse Reaction Scope

Adverse effects are broadly classified into local skin reactions and potential consequences of systemic toxicity (Borism). Local reactions observed at the application site, such as mild skin irritation, redness (erythema), or a burning sensation, are generally classified as having an incidence not known or as uncommon in regulatory documentation.

Serious Safety Considerations

The most significant documented risk is systemic Boric Acid toxicity, primarily occurring following accidental ingestion or application to extensive areas of compromised skin (e.g., severe burns or large open wounds). Regulatory agencies document that such absorption can lead to severe adverse reactions across multiple System-Organ Classes.

System-Organ Class Serious Potential Effects
Renal and Urinary Disorders Severe renal injury and potential failure
Nervous System Disorders Seizures, tremors, confusion, and coma
General Disorders Shock and circulatory collapse

Population-Specific Safety Constraints

Official labeling includes specific safety considerations for vulnerable groups. Infants and children are documented to be at a higher risk of systemic toxicity due to physiological factors. Similarly, individuals with impaired renal function are also noted as being more susceptible to toxicity, as the component is primarily eliminated by the kidneys.

For safety, the preparation is contraindicated for use on severe skin burns or extensive open wounds, and it is strictly for external use only.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory profile for Fungusol's overdose risk is defined by the high severity of systemic toxicity following accidental ingestion (swallowing) of the topical product. Although intended for external use, swallowing leads to the systemic absorption of active components, which may result in severe clinical manifestations.

According to government regulatory documentation, a significant overdose may present with severe gastrointestinal distress, including nausea, vomiting, and diarrhea. More critical manifestations involve major physiological systems, potentially leading to CNS effects (such as lethargy or seizures) and renal failure.

Due to the severity of these documented effects, the regulatory mandate is explicit: immediate medical help must be sought or a Poison Control Center must be contacted right away if the product is swallowed. The label explicitly notes a heightened risk for pediatric patients and mandates the product be kept out of reach of children due to the severe consequences of ingestion in this population.

Official documents state that no specific antidote is known for this systemic toxicity. Therefore, the professional management of overdose is limited to symptomatic and supportive treatment to address the effects on affected organs and systems, reinforcing the requirement for urgent professional intervention.

Therapeutic Uses of Fungusol

What Fungusol Treats: Main Uses and Benefits

This topical preparation is commonly used across conditions presenting with localized symptomatic burden, such as minor irritation. Fungusol is applied across domains where additional symptomatic support is needed, primarily to help manage symptoms related to physical discomfort, inflammatory or irritative states, and excessive moisture where functional stability becomes affected.

The preparation is commonly used for managing symptomatic distress associated with diaper rash, chafing in skin folds, and other conditions involving recurrent or episodic manifestations of minor irritation. The preparation may assist with maintaining functional stability and is used for managing symptoms that interfere with daily comfort. This provides support that helps ease the overall symptom burden, contributing to improved comfort during symptomatic periods.

“It plays a role in managing symptoms where a hygienic surface is important and is applied in addressing symptoms that interfere with routine activities.”


Quick Fact: Relief for Skin Discomfort

Primary Benefit Focus Symptom Category Addressed
Symptomatic Relief Soreness and redness related to inflammatory states
Barrier Support Wetness and maceration in moisture-driven conditions
Hygienic Surface Conditions where symptoms are linked to minor surface microbial issues

Regulatory References

  1. an official DailyMed record

Eligibility and Restrictions for Use

Who Can and Cannot Use Fungusol?

The population eligibility for using the topical combination preparation Fungusol (Boric Acid and Zinc Oxide) is strictly defined by regulatory authorities and is primarily governed by the risk of systemic absorption of Boric Acid.

Official Eligibility and Contraindications

Population Group Eligibility Status (Regulatory)
Adults and Children 2 years Eligible for use on intact skin.
Infants and Children < 2 years Contraindicated (Must not be used).
Pregnant Individuals Contraindicated (Use must be avoided).

Application Site and Skin Condition Restrictions

Fungusol is strictly for external use only. Use is absolutely prohibited on large areas of broken skin, open wounds, abraded, or severely denuded skin. This restriction is mandatory to prevent increased systemic exposure. The preparation is also contraindicated for use near the eyes or for any internal application.

Other Restrictions

No explicit contraindications are listed in the official labeling based on pre-existing hepatic or renal impairment for standard topical use. No specific eligibility restrictions are documented for older adults (65 years). Use during lactation is generally not recommended without professional consultation, but is not listed as an absolute contraindication.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Fungusol is a topical preparation containing Boric Acid and Zinc Oxide that acts non-systemically, meaning its therapeutic activity is localized on the skin surface. As a result of this application route, regulatory documents indicate a specific profile that focuses on local physical interference rather than systemic drug–drug interactions.

Interaction Scope

Interaction Type Documented Regulatory Statement
Systemic Pharmacokinetics No clinically relevant systemic pharmacokinetic interactions (e.g., CYP-mediated or transporter-based) are documented.
Food, Alcohol, Supplements No interactions with ingested substances are documented in official labeling.
Interacting Substances Other topical dermatological preparations and specific chemically incompatible substances.

Administration Constraints

The most relevant documented interaction is the Local Physical Co-Application Interaction. Due to the barrier properties of Zinc Oxide, co-administration with other topical medicines to the same area requires temporal or spatial separation. This restriction is necessary to prevent the physical occlusion of the co-administered medicine by Fungusol's protective layer, which could affect the other product's intended action. Furthermore, chemical incompatibility is noted with substances such as Benzylpenicillin and certain Fatty Acids in Oils and Fats, which may compromise the product's stability. No formal contraindications based on systemic drug interactions are specified in the regulatory labeling.

Mechanism of Action

How Fungusol Works

The mechanism of action for Fungusol involves the inhibition of the essential fungal enzyme cytochrome P450 lanosterol 14alpha-demethylase (or CYP51). This enzyme is crucial because it catalyzes a key step in the biosynthesis of ergosterol, the primary sterol component vital for maintaining the structural integrity of the fungal cell membrane.

The enzymatic inhibition leads directly to the cessation of ergosterol synthesis, consequently preventing fungal cell proliferation and growth. Simultaneously, the inhibition causes an intracellular accumulation of 14alpha-methyl sterols (toxic intermediate sterols) within the fungal cell membrane. The presence of these misaligned sterols alters the physicochemical properties of the cell membrane, resulting in elevated permeability and subsequent osmotic instability.

This highly specific action on the fungal CYP51 enzyme, exhibiting low affinity for human cytochrome P450 isozymes, ultimately results in the lysis of the fungal cell itself.

Dosage and Administration Information

How to Use Fungusol

Fungusol is a combination pharmaceutical preparation used strictly for topical administration, meaning it is applied only to the surface of the skin. Its non-systemic use is defined by application localized to the affected area. The preparation's action relies on maintaining a continuous protective barrier.


Official Administration Guidelines

Feature Labeled Usage Principle
Route of Administration Topical application (External Use Only)
Dosing Regimen Apply liberally to cover the entire area with a continuous film.
Frequency Schedule As often as necessary to maintain the protective barrier. For specific uses like diaper rash, application is indicated with each diaper change and particularly at bedtime.
Preparation Requirement The application area must be cleansed and allowed to dry thoroughly before the product is applied. Soiled materials should be changed promptly.
Population Rules The general application pattern and frequency are consistent across age groups, including pediatric use.

Procedural Structure

Standard application follows a specific sequence. The protocol begins with the prompt changing of wet or soiled materials and then requires the skin to be cleansed and allowed to dry completely. Following this preparation, the product must be applied liberally to establish the required barrier. Reapplication frequency is driven by the need to restore this protective layer, ensuring continuous coverage.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Fungusol

This overview describes the types of research and general findings that have been reported for Fungusol's active ingredients, adhering strictly to official and peer-reviewed scientific literature. The text aims to clarify what is known about the research landscape without offering clinical advice or making claims about individual outcomes.


Evidence for Use in Minor Skin Irritation and Protection

This section summarizes the main body of clinical evidence for the product’s use, which includes conditions characterized by localized skin symptoms like redness, soreness, and chafing, for which the product was studied. Research has focused extensively on the component used for dermatological protection, which was studied for its role as a physical barrier and its association with surface wetness.

Studies used Randomized Controlled Trials (RCTs) and systematic reviews that examined outcomes related to physical discomfort using irritation severity scales. The findings describe patterns observed in the studies where participants using these protectant formulations reported changes in perceived discomfort. However, the evidence quality varies across studies due to differences in formulation (powder versus cream), meaning findings were mixed in some cases.

Evidence for Adjunctive Control of Surface Microbial Proliferation

This block describes the studies, primarily laboratory-based and pre-clinical models, that explored the product's association with surface microbial activity. The content outlines the microbial outcomes measured in these models and how this evidence relates to the product’s study of the hygienic surface environment.

Most of the evidence for this specific action was observed in In-vitro (laboratory) studies that examined microbial growth inhibition. The research contributes to the broader evidence landscape by contributes to understanding the characteristics of the components. What is still uncertain is the specific contribution of the antiseptic component to patient outcomes. It is difficult to isolate the specific clinical contribution of this property from the physical barrier and drying effect of the other ingredient, meaning the certainty remains low regarding the specific action of this component in the overall clinical picture.

Long-Term Studies and Follow-up Duration

Research in this area often focuses on the initial, or acute, phase of skin symptoms. Follow-up durations were limited, typically ranging from a few days up to about four weeks, and focused on the initial period of heightened symptom activity. There is limited information for long-term outcomes because the majority of studies examined temporary physiological imbalance rather than long-term maintenance. The data are still emerging for long-term use and recurrence patterns following observed short-term symptom patterns.

Key Studies & References

  1. DailyMed: Product Label for Zinc Oxide and Boric Acid Combination Product (Set ID: bd99c49e-85b9-bc55-e053-2995a90a759d)
  2. Zinc Oxide topical (MedlinePlus Drug Information)

Frequently Asked Questions (FAQ)

Common questions about Fungusol (FAQ)


Q: What kind of infections does Fungusol treat?

A: The preparation is officially classified as an Antiseptic, Antifungal Agent, and Dermatological Protectant. The active ingredients are associated with inhibiting the proliferation of certain fungi, and the product is studied for its use in minor skin irritation, wetness, and chafed skin. Studies have focused on conditions characterized by localized skin symptoms.


Q: What's the difference between Fungusol and other antifungal medicines?

A: Fungusol is described as a combination pharmaceutical preparation intended exclusively for topical application. This means its activity is localized on the surface of the skin and it is non-systemic, distinguishing it from medicines that are absorbed into the bloodstream. Its mechanism involves a dual action, providing both an antiseptic/fungistatic effect and a physical barrier.


Q: Are the side effects of Fungusol generally mild?

A: The official safety profile categorizes adverse effects into two types. Local skin reactions observed at the application site, such as mild irritation, redness, or a burning sensation, are generally classified as uncommon or incidence not known. The potential consequence of systemic toxicity (Borism) is the most significant documented risk, primarily occurring following accidental ingestion or application to extensive areas of compromised skin.


Q: How long after starting Fungusol do people usually feel a change?

A: Research has primarily focused on the initial period of heightened symptom activity, with follow-up durations in these studies typically ranging from a few days up to about four weeks. The product’s action relies on establishing a continuous protective barrier and maintaining a hygienic surface environment.


Q: Why do official documents refer to Fungusol with a different name?

A: Official documents often refer to the product by its Active Ingredients, Boric Acid and Zinc Oxide. This is because Fungusol is defined as a combination pharmaceutical preparation containing these two specific ingredients for topical use.


Q: Is the name 'Fungusol' just a brand name?

A: Fungusol is described as a combination pharmaceutical preparation that contains two Active Ingredients: Boric Acid and Zinc Oxide. The preparation leverages the combined properties of these inorganic substances.


Q: How quickly can I expect Fungusol to start working?

A: The product’s intended action involves establishing a physical barrier and inhibiting microbial proliferation, which is a process that occurs over time. Research has typically focused on the acute phase of symptoms, with follow-up durations usually ranging from a few days to a few weeks.


Q: Does Fungusol stop working if I miss a dose?

A: The official instructions for use mandate reapplication as often as necessary to maintain the protective barrier on the skin surface. If the continuous protective layer is not maintained, the product's intended local barrier action may be compromised until reapplication occurs.


Q: Is Fungusol safe to use long-term?

A: Regulatory research has primarily focused on the initial period of heightened symptom activity, and there is limited information for long-term outcomes documented. Official documents note that the most significant risk is systemic toxicity, particularly following extensive application to compromised skin.


Q: Can Fungusol cause liver problems?

A: Based on the documented safety profile, potential serious effects following systemic absorption are primarily related to severe renal injury (kidney damage) and nervous system disorders, which can include confusion or seizures. Liver effects are not specified in this documented adverse reaction profile.


Q: Is it true that Fungusol affects birth control pills?

A: Regulatory documents state that no clinically relevant systemic pharmacokinetic interactions (e.g., interactions affecting how a drug is processed by the body) are documented for Fungusol. This is because the preparation acts non-systemically, localizing its therapeutic activity on the skin surface.


Q: What are the expected results from taking Fungusol?

A: The overall purpose of this dual mechanism is described as offering a supportive approach to surface-level skin concerns. This is achieved by providing a soothing, protective layer and promoting a drying and clean environment on the skin surface.


Q: Is it normal to feel tired when you first start Fungusol?

A: Side effects associated with the systemic absorption of the product are primarily related to Renal and Nervous System Disorders. Fatigue or tiredness is not documented as a common or local adverse effect in the official safety profile.


Q: Is Fungusol used for conditions other than fungal infections?

A: Yes. While one component is an antifungal agent, the preparation is broadly described for its use in Relieving minor skin irritation and moisture control. This includes conditions studied, such as localized skin symptoms like redness, soreness, and chafing, for which the protectant component is used.


Q: Can Fungusol make symptoms temporarily worse?

A: Local skin reactions observed at the application site include mild skin irritation, redness (erythema), or a burning sensation. These effects are generally classified as uncommon or incidence not known in regulatory documentation.


Q: Is there any evidence that Fungusol causes hair loss?

A: Based on the official safety profile provided for this topical preparation, hair loss (alopecia) is not listed as a documented local or systemic adverse effect.


Q: Does Fungusol interfere with sleep?

A: The documented serious effects associated with the nervous system following systemic absorption are seizures, tremors, confusion, and coma. Interference with sleep is not specified as an expected adverse effect in the official safety profile.


Q: Do you have to take Fungusol with food?

A: Fungusol is for topical administration only and is applied externally to the skin. Regulatory documents state that no interactions with ingested substances, including food or alcohol, are documented in official labeling.


Q: What makes Fungusol different from a simple cream or ointment?

A: The preparation is characterized by its dual-action combination of two Active Ingredients, Boric Acid and Zinc Oxide. This combination provides both an antiseptic/fungistatic action and a skin protective/astringent barrier effect, distinguishing it from base vehicles or single-component products.


Q: Can people with diabetes use Fungusol?

A: There is no explicit contraindication listed in the official labeling based on pre-existing conditions like diabetes for standard topical use. However, official documents note that individuals with impaired renal function are more susceptible to systemic toxicity, as one component is primarily eliminated by the kidneys.


Q: Is there a specific maximum length of time Fungusol is generally used?

A: Official usage frequency is listed as as often as necessary to maintain the protective barrier. Regulatory documents do not specify a maximum length of time for general use, and follow-up durations in clinical research were limited.


Q: What is the role of Fungusol in combination therapies?

A: The most relevant documented interaction is the Local Physical Co-Application Interaction. Due to its barrier properties, using it with other topical medicines on the same area requires temporal or spatial separation to prevent physical occlusion of the co-administered medicine.


Q: How to Store and Dispose of Fungusol?

A: The medicine should be stored below 25 C and must not be frozen. It must be kept in the original container for protection. Disposal of any unused medicinal product or waste material must be carried out in accordance with local requirements and regulations.

How should Fungusol be stored and disposed of?

How to Store and Dispose of Fungusol?

Fungusol storage and disposal must strictly follow regulatory guidance to maintain product stability and safety.

Storage Requirements

The medicine should be stored below 25 C and must not be frozen. To protect the product from moisture, keep it in the original container, and keep the vial in the outer carton for light protection.

Handling and Stability

After Fungusol is reconstituted, the solution must be used immediately. Any unused portion of the reconstituted solution must be discarded.

Disposal and Safety

It is essential to keep this medicine out of the sight and reach of children. The disposal of any unused medicinal product or waste material must be carried out in accordance with local requirements and regulations.

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

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