Ichtholan 20%

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Ichtholan 20%

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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 Ichtholan 20%

Property Description
Active Ingredient Ichthammol (Ammonium Bituminosulfonate)
Form Topical Ointment (Salve)
Pharmacological Class Antiseptic, Anti-inflammatory Agent
Common Use (General) Symptomatic relief for irritated skin
Origin Derived from sulfonated bituminous shale

What Type of Topical Medicine is Ichtholan 20%?

Ichtholan 20% is a dermatological preparation formulated as a high-concentration topical ointment for direct application to the skin. Pharmacologically, it is primarily categorized as an antiseptic and an anti-inflammatory agent. Its defining characteristic is the 20% concentration of the single active ingredient, Ichthammol.

The medicine is structured as an oleaginous salve, traditionally recognized for its viscous nature. This specific ointment form creates an occlusive barrier, which maximizes the contact time between the active ingredient and the cutaneous surface. This extended contact facilitates the sustained local release of the compound, a feature distinguishing it from lighter topical preparations.

Composition: What is Ichthammol (Ammonium Bituminosulfonate)?

The core chemical entity in Ichtholan 20% is Ichthammol, formally identified as Ammonium Bituminosulfonate. This compound is classified as a sulfonated bituminous derivative, meaning it is obtained through the complex chemical processing, specifically the sulfonation, of naturally occurring bituminous shale.

The 20% concentration strictly specifies the strength of the Ichthammol component within the hydrophobic ointment base. Pharmacological analysis indicates that Ichthammol exhibits notable anti-inflammatory and moderate antipruritic (anti-itch) activity on the skin.

General Purpose and High-Level Effect

The general purpose of this medicine is to support the normalization of irritated skin through its three primary physiological actions: anti-inflammatory property, antipruritic effect, and a mild keratoplastic action. These functions work synergistically: the anti-inflammatory and antipruritic actions collectively alleviate symptomatic discomfort, while the keratoplastic effect promotes the healthy structure and regeneration of the skin’s surface layer. The preparation is used for superficial inflammatory skin conditions.

Regulatory References

  1. Ichthammol MeSH Entry
  2. Ichthammol DailyMed Entry
  3. EMA Human Regulatory Overview

What side effects are possible with Ichtholan 20%?

Possible side effects and safety information

The official safety profile for topical Ichtholan 20% (Ichthammol) is primarily defined by local effects on the Skin and Subcutaneous Tissue Disorders system, according to regulatory documents.

Adverse effects associated with the use of this preparation are typically localized to the application site. The most commonly noted reaction is local skin irritation, which may include descriptive effects such as redness, itching, a burning sensation, or temporary skin discoloration. Less frequently, a hypersensitivity reaction or allergic contact dermatitis may develop as a systemic response to the active ingredient or an excipient.


Safety Constraints and Considerations

Official labeling specifies mandatory constraints for use. Hypersensitivity to Ichthammol (Ammonium Bituminosulfonate) or any component of the ointment is a contraindication.

Safety Domain Regulatory Note
Application Restrictions Strictly for external use only; must not be applied to the eyes, mucous membranes, or deep puncture wounds.
Exposure Pattern The product has a documented phototoxic potential, which may cause skin sensitivity upon exposure to UVA radiation.
Population Data Safety data for use during pregnancy and breast-feeding are officially noted as limited.

Official safety guidance instructs that use should be stopped if irritation, redness, swelling, or pain persists or worsens after application. These safety elements strictly define the scope and limits of the product’s use.

Overdose and Emergency Response

The official regulatory information for Ichtholan 20% (Ichthammol) ointment defines the primary overdose risk scenario as accidental oral ingestion of the topical preparation, given the product's minimal systemic absorption from dermal application. Overdose descriptions focus entirely on the mandatory emergency actions required after swallowing the medicine.

Overdose Manifestations and Complications

Accidental ingestion may lead to non-specific gastrointestinal manifestations, including irritation of the digestive tract, nausea, and vomiting, as noted in regulatory summaries. Critically, the official labeling emphasizes that severe systemic outcomes are possible. Clinical signs such as trouble breathing or passing out (loss of consciousness) are explicitly listed as severe events that mandate an immediate, urgent response.

Mandated Emergency Actions and Management

The official labeling states that immediate medical attention must be sought if the product is swallowed. The primary regulatory instruction is to contact a Poison Control Center right away upon accidental ingestion. Furthermore, if severe symptoms, specifically trouble breathing or passing out, are observed, the regulatory guidance is to immediately call emergency services. Management is directed toward providing symptomatic and supportive treatment, a necessity established because no specific antidote is formally documented in regulatory summaries for Ichthammol overdose.

Therapeutic Uses of Ichtholan 20%

What Ichtholan 20% Treats: Main Uses and Benefits

Ichtholan 20% is commonly used as a topical application and may be relevant when seeking supportive management for symptoms related to localized irritative states. It is applied across conditions characterized by periods of heightened symptoms, including boils (furuncles), minor abscesses, inflamed ingrown toenails, and discomfort from splinters or insect bites.

This ointment helps address symptom clusters of redness, swelling, and physical discomfort associated with the presence of pus and inflammation. By supporting the process of lesion maturation and contributing to the easing of symptoms in the affected area, the application assists with easing the overall symptom load. The preparation is relevant in contexts marked by increased discomfort or tension, and may be applied for symptomatic assistance with acute skin irritation and itching (pruritus). This use supports general well-being during symptomatic phases.


Quick Fact: Relief for Localized Inflammatory Skin Symptoms

Ichtholan 20% is commonly used to help manage the symptoms associated with small, painful, pus-filled bumps and providing supportive relief for irritation around the nail bed. It may assist with softening the skin in areas affected by induration.

Regulatory References

  1. DailyMed (National Library of Medicine) overview

Eligibility and Restrictions for Use

Who Can and Cannot Use Ichtholan 20%?

The population eligibility for Ichtholan 20% Ointment is defined by official regulatory labeling, outlining specific patient groups who are permitted, restricted, or prohibited from using the medicine.

Eligibility Scope

  • Populations for whom use is allowed: Generally permitted for Adults (Aged 18 years or older) under standard labeled conditions.
  • Populations for whom use is not recommended: Children and adolescents under 18 years of age are excluded from use. Use is also not recommended for pregnant or breastfeeding individuals due to a lack of sufficient human safety data.
  • Populations for whom use is contraindicated: Individuals with a known hypersensitivity or allergy to the active substance, Ichthammol, or any of the product's excipients.

Eligibility-Related Restrictions

Application of Ichtholan 20% must be restricted from the eyes, mucous membranes, deep puncture wounds, and severe burns. Individuals with such injuries must consult a healthcare professional before use. The regulatory status for use during pregnancy and lactation is classified as conditional, requiring the assessment and decision of a healthcare provider.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Ichtholan 20% is a topical dermatological preparation containing Ichthammol (Ammonium Bituminosulfonate), and due to its local application, there is generally minimal risk of systemic drug-drug interactions. The official interaction profile, as defined by regulatory documentation, focuses on local chemical compatibility and co-administration rules.


Documented Interaction Patterns

Interaction Type Interacting Substance/Class Official Interaction Statement
Administration Restriction Topical Tetracyclines Co-administration on the same area of skin is contraindicated (prohibited).
Pharmacodynamic Interaction Highly Acidic Topical Preparations May result in a reduction of the local effects of Ichtholan 20%.

Regulatory Summary

The most significant interaction-related constraint is a mandatory separation requirement (prohibited co-administration) regarding topical tetracyclines on the same site of application, as stated in regulatory labeling. The only documented pharmacodynamic interaction relates to the use of other highly acidic topical preparations, which may chemically reduce the expected surface effect. Official regulatory sources do not document systemic pharmacokinetic interactions, such as those mediated by CYP enzymes or drug transporters, consistent with the minimal systemic absorption of the topical salve.

Mechanism of Action

How Ichtholan 20% Works

Enzyme-Mediated Modulation of Inflammation

Ichthammol primarily functions as a local enzyme inhibitor, interfering with the Arachidonic Acid Cascade. It suppresses the activity of key enzymes, including Cyclooxygenase (COX) and Lipoxygenase (LOX), which are responsible for generating pro-inflammatory mediators (eicosanoids) like prostaglandins and leukotrienes. This molecular action restricts the chemical signals that drive vasodilation and increased vascular permeability, leading to a restriction of local fluid exudation and expansion in the tissue.

Regulation of Sensory Nerve Signaling

The mechanism also involves the direct modulation of peripheral sensory nerve endings (C-fibers) in the skin. Additionally, the compound limits the local release of histamine from mast cells, a crucial molecule in pruriception signaling. By acting directly on both the nerve membrane and the chemical mediators, the mechanism reduces the excitability of cutaneous nerves, influencing the transmission of peripheral sensory signals.

Keratinocyte Differentiation and Structure

At this specific high concentration, the drug exerts a modulatory influence on the keratinocyte differentiation cycle. This action modulates the cellular turnover rate and influences the orderly maturation of the epidermal cells. This action influences the structural progression of the skin's surface layer.

Dosage and Administration Information

How to Use Ichtholan 20%: Administration Guidelines

Administration of Ichtholan 20% is limited to the topical route. This dermatological preparation is supplied as a 20% strength ointment or salve, which serves as the labeled dosage form.

General Principles of Application

Instructions define the use of the ointment as a localized regimen with specific procedural steps. Application requires applying a sufficient amount of the ointment to cover the entire affected area. Application methods may include applying the product directly to the skin or placing it onto a gauze bandage for transfer.

Frequency patterns range from once daily to once or twice a day and are generally determined by the course of the condition being managed.

Procedural Contexts

Prior to application, the skin area should be cleansed. Hands must also be washed thoroughly following the administration process. Techniques vary regarding friction: instructions may specify not to rub or massage the ointment in, or to lightly massage the product.

In scenarios requiring continuous use as a dressing, the applied area should be covered with a bandage. Ointment residues must be removed before applying a new dressing, with continuous dressings requiring a change at least every three days.

Recent Clinical Evidence

Evidence for Use in Localized Inflammatory Lesions (e.g., Boils and Abscesses)

The research exploring the use of the active ingredient, Ichthammol, for acute skin conditions, such as boils or abscesses, primarily involves evidence from its long history of use and older comparative clinical trials. These studies were studied for populations presenting with acute, localized irritations, monitoring outcomes related to outcomes linked to inflammatory or irritative states. Older reports describe patterns related to the maturation and drainage process of certain lesions. This evidence contributes to understanding the medicine’s long-standing use.

However, the evidence base for this primary use is limited by a lack of recent, large-scale, dedicated Randomized Controlled Trials (RCTs). Consequently, comparative evidence is lacking when placed alongside modern topical agents. This highlights a need for more contemporary research to fully characterize the findings under modern study conditions.


Evidence Landscape for General Inflammatory Dermatoses

Research has also explored the use of the active ingredient in conditions like eczematous dermatitis, which are conditions characterized by fluctuating or episodic manifestations. Studies focusing on this area were generally small-scale comparative trials that were evaluated in research exploring how symptoms change over time, tracking symptom intensity or variability. In these contexts, findings describe patterns observed in the studies related to the resolution of subjective symptoms such as itching. However, the overall research in this area is limited, and the findings were mixed, often reflecting differences in the precise concentration and base of the topical formulation used by researchers.


Long-Term Outcomes and Follow-up Duration

The available research provides context for treatment during the acute phase of a condition. Studies observing responses were observed in defined time intervals that were short-term, focusing on resolution. Consequently, there is limited information for long-term outcomes regarding Ichtholan 20% or the sustained durability of its effect once the application period ends. Long-term effects are not fully established, meaning the evidence contributes to the broader evidence landscape but does not capture extended patient experience.


Evidence Gaps and Areas of Research Uncertainty

A key research limitation frame is that the evidence supporting the primary uses is largely built upon a foundation of historical data and clinical experience. The evidence quality varies across studies. Furthermore, sample sizes were modest in many of the trials exploring its secondary uses, and subgroup findings are uncertain. Overall, the certainty remains low for many applications beyond its established role in localized acute irritation, and research is ongoing in these areas. The evidence highlights what is known—and what is still uncertain—about this traditional topical medicine.

Key Studies & References Ichthammol Ointment 20% Official Drug Label and Information (NLM DailyMed)

Frequently Asked Questions (FAQ)

Common questions about Ichtholan 20% (FAQ)


Q: Is Ichtholan 20% considered a 'drawing salve'?

A: While the term 'drawing salve' is a common name used by the public, official documents refer to this medicine as an ointment that aids in the maturation (or ripening) of boils and abscesses. This maturation process is described as promoting the natural drainage of the lesion.

Q: How does the active ingredient in Ichtholan 20% work on boils and abscesses?

A: The active ingredient, Ichthammol, works through a combination of effects. Official information states that the ointment has anti-inflammatory and anti-bacterial properties. It also promotes increased blood circulation in the treated area, which helps facilitate the maturation and resolution of boils and abscesses.

Q: Is it normal to feel a mild burning or tingling sensation after applying the ointment?

A: According to official safety information, a burning sensation is listed as a potential local adverse effect. If this sensation is mild and temporary, it may be monitored. However, if the burning sensation persists or worsens, or if other signs of irritation develop, the product information states that medical advice is required.

Q: Does using a bandage with Ichtholan 20% increase the risk of side effects?

A: Official information indicates that the ointment contains excipients, such as lanolin and butylated hydroxytoluene (BHT), which can cause local skin irritation or contact dermatitis in sensitive individuals. Using an occlusive bandage (one that fully covers the area) may potentially increase skin contact time with these excipients. Always follow the administration guidelines regarding the use of bandages.

Q: Can the ingredients in Ichtholan 20% reduce the effectiveness of latex condoms?

A: Yes, official product warnings state that if you are treating the genital or anal area, the fats and emulsifiers contained in the ointment's base may reduce the tear resistance of products made of latex (such as condoms). This could impair their safety as a contraceptive or barrier against disease.

Q: Can people with sensitive skin use Ichtholan 20%?

A: The ointment contains lanolin, which may cause local skin reactions like contact dermatitis. A known hypersensitivity or allergy to any component is a contraindication (a reason not to use the product). Official information states that a consultation with a healthcare professional may be necessary for individuals with known skin sensitivities.

Q: What is the recommended way to remove the ointment residue from the skin?

A: Official instructions specify that any ointment residues remaining on the skin must be washed off before a new dressing or application is applied. Residue removal is a procedural step recommended prior to reapplication.

Q: How long can I continue using Ichtholan 20% for a localized inflammation?

A: The product information typically focuses on the frequency of application, advising that the dressing should be changed daily. However, if symptoms persist after a few days of application, or if the expected improvement does not occur, official guidance states that medical advice should be sought to reassess the condition.

Q: Does Ichtholan 20% also help reduce pain associated with skin inflammation?

A: Official product information emphasizes the ointment's anti-inflammatory and anti-itch (antipruritic) properties. While a related, higher-strength product is described as having an analgesic (pain-relieving) effect, the 20% strength is primarily known for its anti-inflammatory and circulatory effects on the skin.

Q: Can Ichtholan 20% stain clothing, and how can those stains be removed?

A: Yes, regulatory documents advise users to cover the dressing well to avoid soiling clothing or linen. If the dark ointment does stain laundry, the official recommendation is to leave a liquid detergent on the stain for an extended period before washing, as this is the most effective removal method.

Q: Is Ichtholan 20% suitable for superficial inflammatory skin conditions?

A: According to official product uses, Ichtholan 20% is indicated for promoting the maturation of boils and for treating superficial inflammatory skin diseases.

Q: Can Ichtholan 20% be used for inflammation caused by splinters?

A: Yes, authoritative drug references indicate that the active ingredient in Ichtholan 20%, Ichthammol, is indicated for the treatment of localized inflammations such as those caused by splinters.

Q: Does Ichtholan 20% have antibacterial properties?

A: Yes, official regulatory documents state that the active ingredient possesses an anti-bacterial effect in addition to its anti-inflammatory and blood circulation-increasing properties.

Q: Why does Ichtholan 20% have a dark or black color?

A: The ointment is officially described as a brown-black color. This characteristic color is directly related to its active ingredient, Ichthammol, which is a derivative of sulfonated shale oils (bituminous schist).

Q: What does it mean if the treatment with Ichtholan 20% doesn't seem to be working?

A: Official product information advises that if symptoms persist (do not get better) or if the expected success from the application does not occur, medical advice should be sought for reassessment.

Q: Is it safe to use Ichtholan 20% near the eyes or mucous membranes?

A: No. Official warnings advise that contact with the eyes should be strictly avoided. Additionally, the ointment should not be applied to mucous membranes because it may cause irritation.

Q: Why is cleanliness important when using Ichtholan 20% on purulent skin conditions?

A: For purulent skin inflammations (those containing pus), official warnings advise that there is a risk of spreading the infection through smear infection. Therefore, special attention to cleanliness, cleansing, and disinfection of the surrounding healthy skin is recommended when applying the dressing.

Q: Does Ichtholan 20% contain lanolin, and is that an issue for sensitive individuals?

A: Yes, ICHTHOLAN 20% Ointment contains lanolin. Regulatory warnings note that lanolin may cause local skin irritation, such as contact dermatitis, in sensitive individuals. This is a point of caution noted in the product information.

Q: How does the 'blood circulation-increasing' effect of Ichtholan 20% help the healing process?

A: Official information describes that Ichtholan 20% has a circulatory effect (it increases blood circulation in the area). This action helps support the overall maturation process for boils and superficial inflammatory skin diseases.

Q: What does the term 'maturation of boils' mean in the context of this ointment?

A: The term 'maturation' is used in the official indication for use on boils. It refers to the process where the inflammation comes to a head, preparing the lesion for or beginning the natural process of drainage and resolution.

How should Ichtholan 20% be stored and disposed of?

How to Store and Dispose of Ichtholan 20%?


Storage Requirements

The product must be stored below 25 C in a cool, dry location. It is essential to keep Ichtholan 20% in its original, well-sealed container and out of the sight and reach of children. Do not use the ointment after the expiry date printed on the label.


Disposal Instructions

Do not dispose of this medication by flushing it down a toilet or pouring it into a drain unless specifically instructed by a healthcare professional. To properly discard unused or expired Ichtholan 20%, consult a pharmacist or a local waste disposal company for detailed instructions on safe community drug take-back programs or hazardous waste disposal methods. Environmental regulations also advise against allowing the product to enter sewer systems or natural waterways.

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

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