Dermasel

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Dermasel

Medically reviewed

Laura Arias

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 Dermasel

Dermasel: What Kind of Medicine Is It?

Property Description
Active Ingredient Selenium Sulfide
Form Topical Suspension (Shampoo/Lotion)
Pharmacological Class Antifungal and Cytostatic Agent
Route of Administration Topical Application
Origin Synthetic Inorganic Compound

Classification, Composition, and Origin

Dermasel refers to a medicinal product defined by its active agent, Selenium Sulfide (INN), a synthetic inorganic compound that exhibits a monosemiotic therapeutic profile. Pharmacological studies have recognized this substance for its distinctive dual properties, setting it apart from simpler antifungal agents. The substance is classified under the ATC system as an Antifungal for Topical Use (D01AE13). The medicine is typically formulated as an aqueous suspension, commercially presented as a specialized shampoo or lotion, and is designed exclusively for topical application. These suspensions are often available in varying strengths, with lower concentrations generally managed as an Over-the-Counter (OTC) medicine, while higher concentrations may be restricted to prescription (Rx) status.

High-Level Action and General Therapeutic Purpose

The general therapeutic purpose of this product is to help normalize the biological balance of the skin and scalp through a distinct dual mechanism. Selenium Sulfide functions by exerting potent antimycotic properties, which inhibit the growth of certain surface fungi associated with skin scaling, alongside a significant cytostatic effect that slows excessive epidermal cell production. The agent is designated as both an antiseborrheic and antifungal preparation intended for external use. This ensures the agent addresses conditions characterized by both microbial activity and accelerated cell turnover, defining its role in managing persistent scaling and flaking conditions.

Regulatory References

  1. FDA Drug Labeling (DailyMed)
  2. DailyMed

What side effects are possible with Dermasel?

Possible side effects and safety information

The safety profile for the topical suspension Dermasel, which contains Selenium Sulfide, is primarily documented through adverse reactions localized to the application site. Regulatory sources organize potential effects into distinct system-organ classes, with the most commonly noted reactions involving the hair and skin.


Officially Documented Adverse Reactions

Adverse reactions associated with the topical application of Selenium Sulfide are chiefly related to Skin and Subcutaneous Tissue Disorders and Hair Disorders. Documented effects include skin irritation, a burning sensation, or sensitization at the application site. Patients may also experience changes such as hair discoloration (particularly in light or chemically treated hair), an increase in normal hair loss, and alterations in hair/scalp texture, such as increased oiliness or dryness. Serious localized reactions, including blistering, have been documented, specifically when the product remains in contact with the skin for longer than the duration specified in regulatory guidelines.

Key Safety Constraints and Special Populations

Official labeling defines hypersensitivity to any component as a contraindication. A significant regulatory constraint involves the risk of systemic absorption: the product should not be applied to areas of acute inflammation or broken skin, as this may increase the absorption of the active ingredient. Additionally, accidental oral ingestion is associated with the risk of acute systemic toxicity.

For specific populations, the medicine is classified as Pregnancy Category C for body surface use, and safety has not been conclusively established for children under 12 years of age.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documentation for Dermasel (Selenium Sulfide) topical suspension defines the overdose profile primarily around the risk of accidental acute oral ingestion, as the product is intended solely for external application.

Scenario Official Regulatory Mandate
Documented Overdose Presentation No documented reports of serious systemic toxicity in humans resulting from acute ingestion. Potential human toxicity is suggested only from the ingestion of large amounts, based on non-human acute toxicity data.
Immediate Action Required Seek immediate medical attention or contact a Poison Control Center immediately for accidental ingestion.

Management and Regulatory Constraints

The necessity of seeking immediate medical help is a core mandate due to the potential for systemic toxicity following acute oral exposure. When this scenario is confirmed, emergency medical care is required immediately. The official prescribing information states that evacuation of the stomach contents should be considered as an initial supportive measure to limit systemic absorption. Any management provided must be symptomatic and supportive in nature. The regulatory documents do not specify the existence of a known or specific antidote for an overdose of this substance. Furthermore, the official overdose sections do not contain explicit population-specific considerations regarding severity or management for groups such as the pediatric or elderly populations.

Therapeutic Uses of Dermasel

What Dermasel Treats: Main Uses and Benefits

Dermasel (Selenium Sulfide) is used across several dermatological domains to provide symptomatic relief and address conditions marked by symptoms related to physical discomfort and inflammatory or irritative states. The active ingredient is broadly categorized within the therapeutic domains of antiseborrheics and antifungals. The therapeutic relevance of this medicine is reflected in established clinical drug labeling.


Management of Chronic Scaling and Fungal Symptoms

Dermasel is commonly used to help with symptoms related to dandruff, Seborrheic Dermatitis of the scalp, and the surface fungal infection Tinea Versicolor. It is relevant when supportive symptom management is appropriate to help ease both the visible scaling and the accompanying symptoms related to excessive scalp oiliness (seborrhea) and pruritus (itching). The medicine is applied during phases when symptoms become more noticeable, offering symptomatic relief that helps patients cope more steadily with symptom fluctuations.

Therapeutic Benefit

For patients, the medication contributes to improved comfort during periods of heightened symptoms by addressing symptom clusters that create noticeable interference with daily stability. It assists with maintaining functional stability of the skin’s appearance and provides support that helps ease the overall symptom burden of visible symptoms.

Quick Fact: Support for Symptoms related to Pathological Scaling Dermasel is commonly used across conditions presenting with acute episodes of flaking and is relevant for addressing symptoms that interfere with daily comfort.

Regulatory References

  1. NIH DailyMed drug label information

Eligibility and Restrictions for Use

Who Can and Cannot Use Dermasel? (Official Regulatory Information)

Official regulatory documents define a set of mandatory exclusions and restrictions to ensure safe use of Dermasel. These rules specify patient groups for whom the medicine is absolutely forbidden or requires conditional use.

Contraindicated Populations:

Classification Requirement
Absolute Exclusion Patients with a documented hypersensitivity to the active substance or any ingredient in Dermasel.
Condition-Based Individuals with specific, severe comorbidities, such as severe uncompensated hepatic (liver) impairment or renal (kidney) impairment, if explicitly listed as contraindications.

Special Population Restrictions:

Domain Regulatory Status
Age Restriction Use is typically not established or not recommended for pediatric populations (children/adolescents) under the specified age due to insufficient safety or efficacy data.
Reproductive Status Use during pregnancy or lactation (breastfeeding) is generally not recommended or contraindicated unless a physician has officially assessed the risk against potential benefit.
Conditional Use Patients with moderate hepatic or renal impairment may require restricted use, often involving mandatory dose reduction or increased safety monitoring as specified in the label.

Eligibility is granted only to the general adult population not subject to these listed constraints. The regulatory structure legally restricts access to those groups where the potential for unacceptable harm is documented.

What should I know about interactions with other medicines?

Interactions with other medicines and products — official regulatory information for Dermasel

The interaction profile for topical Selenium Sulfide is primarily defined by its limited systemic absorption through intact skin. Official regulatory labeling indicates no known significant systemic drug–drug interactions with co-administered oral or injectable medicines.

Category Official Regulatory Finding
Medicinal product categories with documented interactions None documented.
Specific interacting medicines (if explicitly listed) None explicitly listed.
Mechanistic basis of interactions None documented (e.g., no CYP enzyme or transporter effects).
Timing-based interaction rules None required for co-administered systemic medicines.
Interaction-related restrictions (Exposure) Must not be used on broken skin, mucous membranes, or areas with acute inflammation or exudation; use in these conditions increases the chance of systemic absorption.

Interaction classifications (high-level)

Classification Official Regulatory Finding
Interaction severity classification Minimal/negligible systemic interaction risk.
Interaction-context constraints Barrier-dependent exposure constraint.

Resulting interaction structure Official regulatory documents state there are no known interactions with food or drinks. The primary constraint is the restriction from applying the product to any area of compromised skin due to the potential for increased systemic exposure. This is a mandatory, condition-based rule found in official prescribing information.

Mechanism of Action

Dermasel modulates the inflammatory cascade through selective inhibition of the NF-kappa B pathway. This action attenuates the transcription and subsequent production of key pro-inflammatory cytokines, specifically TNF-alpha and IL-6, within affected joint tissues. The compound influences the synthesis and degradation equilibrium of articular cartilage components by regulating chondrocyte activity and suppressing the expression levels of destructive metalloproteinases (MMPs) within the synovial environment. Concurrently, Dermasel functions as a physiological modulator of bone turnover. It modifies the kinetics of osteoclastogenesis and osteoclast-mediated bone resorption through direct interaction with the receptor activator of NF-kappa B ligand (RANKL) signaling system. This dual action impacts tissue homeostasis by regulating catabolic and anabolic processes in both cartilage and subchondral bone.

Dosage and Administration Information

The use of Dermasel (Selenium Sulfide topical suspension) is strictly confined to topical administration and is associated with established dose and frequency protocols. The product is typically available in 1% and 2.5% strengths.

Administration Protocol

Condition Initial Frequency Required Contact Time
Scalp Conditions Twice weekly for 2 weeks 2 to 3 minutes
Tinea Versicolor Once daily for 7 days 10 minutes

Procedural Instructions

Prior to dispensing, the suspension bottle must be shaken well to ensure uniformity. The product is applied externally to the wet scalp or skin and worked into a lather. For scalp use, standard application involves 1 to 2 teaspoonfuls. Following the required contact time, the application area must be thoroughly rinsed with water, and a second application and rinse is typically required for scalp conditions. The use schedule subsequently transitions to a maintenance phase, where frequency is reduced to weekly or less often, used intermittently as required.

A separate rule specifies that all jewelry must be removed before application to prevent possible discoloration, and the safety and effectiveness for use in children under 12 years have not been established. This represents the standardized procedure for the use of the medicine.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Dermasel


Evidence for Scaling Conditions: Dandruff and Seborrheic Dermatitis

Research for scaling conditions like common dandruff (Pityriasis Capitis) and Seborrheic Dermatitis has included studies exploring how symptoms change over time. These primarily involved Randomized Controlled Trials (RCTs) and controlled studies of adult populations. Researchers focused on documenting changes in clinical scale scores (flaking) and patient-reported outcomes like itching (pruritus) over defined, short-term application periods of approximately four weeks. Comparative trials explored short-term symptom changes, reporting patterns when compared against an inactive base or other topical products. Long-term outcomes are not well characterized in the existing evidence, and research provides limited insight into optimal maintenance strategies.


Evidence for Topical Fungal Infections: Tinea Versicolor

Topical application of the active ingredient was studied for its use in Tinea Versicolor. Controlled studies monitored the rate of mycological clearance (laboratory confirmation of fungal absence) and overall clinical presentation. These studies monitored short-term symptom changes where the active ingredient was evaluated in comparison against a standard comparator. Follow-up periods, typically up to three months, were included to monitor the pattern of symptom reappearance (relapse). Studies report patterns related to achieving fungal clearance, but certainty remains low regarding sustained outcomes over extended periods.


Study Scope and Limitations

Topical use was evaluated in studies as an adjunctive (supporting) measure alongside standard systemic oral antifungal medication for Tinea Capitis, primarily in children. Research evidence describes its use in the context of adjunctive therapy and consistently documents that the medicine was not studied as a monotherapy for achieving mycological clearance. Data for many specific patient groups remain insufficient. Furthermore, comparative evidence is lacking for many direct comparisons against every existing treatment alternative, and many reports have follow-up durations that were limited.

Key Studies & References

  1. SELSUN Blue Anti-Dandruff Shampoo (Selenium Sulfide) - NIH DailyMed Drug Label Information
  2. Management of Seborrheic Dermatitis: A Comprehensive Review

Frequently Asked Questions (FAQ)

Common questions about Dermasel (FAQ)

Q: What is the main medical condition Dermasel is approved to treat?

Dermasel is described in regulatory documents as being used for managing several scaling conditions. These include common conditions such as dandruff (Pityriasis Capitis) and seborrheic dermatitis. The product is also approved for the treatment of the topical fungal infection known as Tinea Versicolor.

Q: How does Dermasel differ from over-the-counter (OTC) skin preparations?

Official regulatory texts define Dermasel by its unique dual mechanism of action. This includes an antifungal property that helps reduce fungal growth associated with certain skin issues. Concurrently, it is characterized by its cytostatic effect, which involves slowing down the overproduction of skin cells.

Q: What general guidance is provided if a person forgets to use a dose of Dermasel?

Guidance from official regulatory sources advises applying a missed dose as soon as it is remembered. However, if it is almost time for the next scheduled dose, the missed application should be skipped entirely. Regulatory guidance recommends against applying a double dose to compensate for the missed application.

Q: What are the official warnings regarding the use of Dermasel near sensitive areas like the eyes or mouth?

Official labeling provides warnings to avoid contact with sensitive areas such as the eyes, lips, and mucous membranes due to the potential for irritation. If accidental contact occurs, regulatory instructions indicate that the area should be rinsed thoroughly with water. These precautions are in place to ensure safe topical use.

Q: What general guidance is provided if someone experiences a persistent rash or severe skin irritation after application?

According to official product information, if a person experiences sensitivity reactions, or if a rash occurs, worsens, or develops elsewhere on the body, the product's official information specifies that use should be discontinued. This instruction is provided on the regulatory label for managing adverse skin reactions.

Q: Does official information indicate any risk of withdrawal symptoms when discontinuing Dermasel use?

Official regulatory documents do not discuss the presence of specific 'withdrawal symptoms' related to Dermasel. However, official information does note that the original condition, such as scaling or flaking, may relapse or return if the therapy is stopped or used inconsistently, requiring re-initiation of the maintenance phase.

Q: What were the general outcomes or conclusions of the main clinical trials that led to Dermasel's approval?

Studies relevant to Dermasel's regulatory review focused on specific measurable outcomes. These included documenting changes in clinical scale scores (flaking) and patient-reported outcomes like itching. For fungal conditions, studies monitored the achievement of mycological clearance, which is the laboratory confirmation that the fungal presence has been eliminated.

How should Dermasel be stored and disposed of?

Dermasel (Selenium Sulfide topical suspension) must be stored and handled according to the following official requirements to maintain its stability.

Storage and Handling

Storage Scope Regulatory Requirement
Temperature Store at Controlled Room Temperature, between 20 C and 25 C (68 F to 77 F).
Protection Protect from freezing and excessive heat; keep the container tightly closed.
Stability Note The product may darken upon storage, but this change does not impair its effectiveness or safety.
Child Safety KEEP THIS AND ALL MEDICATIONS OUT OF THE REACH OF CHILDREN.

Disposal Instructions

Unused or expired product should not be disposed of via wastewater or household trash due to environmental concerns. Disposal of the contents and container must be done in accordance with local, state, and federal regulations.

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

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