Scabisan Plus

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Scabisan Plus

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Medically reviewed

Marina Burgos

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 Scabisan Plus

Quick Facts

Property Description
Active Ingredient Permethrin
Pharmacological Class Ectoparasiticide / Antiparasitic Agent
Form Emulsion, Cream, or Lotion
Route of Administration Topical (Cutaneous)
Origin Synthetic Pyrethroid
General Purpose Eradication of mites and lice

What Type of Medicine is Scabisan Plus?

Scabisan Plus is a specialized pharmaceutical preparation classified as an ectoparasiticide and antiparasitic agent, designed for the elimination of external pests residing on the body. This classification confirms its role in managing common parasitic skin conditions.

The medicine's general purpose is the reliable eradication of arthropods such as mites and lice. Permethrin formulations, such as those used in this product, are a standard treatment option for scabies and pediculosis.


Composition and Origin: The Synthetic Pyrethroid Base

Scabisan Plus is a single-ingredient product whose fundamental property stems from its sole active ingredient, Permethrin. This compound is categorized as a synthetic pyrethroid, meaning it is chemically synthesized to mimic the structure of natural pyrethrins derived from the chrysanthemum flower, providing enhanced stability and efficacy.

The medicine is formulated exclusively for the topical route of administration and is typically presented as a cream, emulsion, or lotion. These physical forms allow the active ingredient to be applied directly to the skin, concentrating its action where the parasites reside.


Action Principle: Targeting Parasite Nerves

Permethrin functions by acting as a highly specific neurotoxin against the arthropod nervous system. The drug interferes with the flow of sodium ions across nerve cell membranes, which rapidly leads to the parasites' paralysis. This mechanism is essential for therapeutic success, as it not only kills adult mites and lice but also confers an important ovicidal effect, destroying their eggs to prevent the continuation of the infestation cycle.

What side effects are possible with Scabisan Plus?

Possible Side Effects and Safety Information

The official safety documentation for Scabisan Plus (Permethrin) outlines potential risks primarily involving localized cutaneous reactions and specific constraints for certain populations, strictly based on regulatory classifications.


Documented Adverse Reactions and Frequency

The most frequently experienced adverse reactions are categorized as common in regulatory labeling and are generally confined to the application site. These include mild and transient symptoms such as pruritus (itching), erythema (redness), burning, and stinging. Less commonly, some patients may report sensory changes like tingling or numbness (paresthesia), which are categorized under Nervous System Disorders.


Time-Related Patterns and Serious Safety Notes

It is officially documented that local reactions like burning and stinging are often more frequently observed at the start of treatment or immediately following application. Furthermore, the pruritus associated with the underlying infestation may persist for up to four weeks after successful parasite eradication. The primary serious safety consideration is the risk of a hypersensitivity reaction to Permethrin, other pyrethroids, or the formulation's excipients, which may require discontinuation of use.


Safety Restrictions and Special Populations

Scabisan Plus is contraindicated in individuals with a known hypersensitivity to the active ingredient or related compounds. Regulatory bodies have also established specific limitations for pediatric use: the safety and effectiveness have not been established in infants younger than two months of age. Regarding use during pregnancy and lactation, regulatory advice suggests that the medicine should only be used if clearly needed and the potential benefits are deemed to outweigh the potential risks.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information for topical Permethrin (Scabisan Plus) specifies different outcomes based on the route of exposure. Excessive topical application may result in localized, transient symptoms such as paresthesia (tingling), itching, or redness. The primary severe risk, however, is associated with accidental oral ingestion.

Following substantial accidental ingestion, the official overdose profile lists potential severe systemic effects, including nausea, vomiting, headache, dizziness, and life-threatening manifestations like convulsions and pulmonary oedema. The patient should seek immediate medical attention and contact a Poison Control Center or emergency services immediately following any oral ingestion, regardless of symptoms.

Management of systemic toxicity is defined as symptomatic and supportive because no specific antidote is known for Permethrin. Official regulatory documents indicate that treatment may involve supportive procedures such as managing vital signs, and potentially administering gastric lavage or activated charcoal if ingestion is recent. Hospital monitoring may be required for cases of accidental ingestion.

Therapeutic Uses of Scabisan Plus

What Scabisan Plus Treats: Main Uses and Benefits

Scabisan Plus is a specialized therapeutic agent commonly used to help manage two key ectoparasitic conditions: scabies (mite infestation) and pediculosis (lice infestation). As a topical scabicidal agent, it is used for these infestations across domains where short-term, supportive assistance is necessary to manage the parasitic source of patient distress.


Managing Active Infestation and Discomfort

This medication is primarily relevant in clinical settings marked by conditions associated with acute or disruptive episodes linked to active ectoparasitic infestations. It is commonly used to help with the management of indications such as scabies and pediculosis capitis (head lice). It is applied across therapeutic domains, contributing to the management of the active infestation. This action offers the foundational therapeutic benefit that assists with managing the contagious source and may assist with minimizing the risk of disease transmission to others.

Scabisan Plus helps address the pronounced symptoms that typically cluster around symptoms related to inflammatory or irritative states and resulting skin irritation. Used when these symptoms create noticeable functional strain, the medication offers symptomatic relief that helps patients cope more steadily with difficult episodes. This contributes to easing the overall symptom load and supports patients during episodes of heightened discomfort.

“The medication is often utilized in family or community settings when symptoms escalate, providing supportive relief that assists with maintaining functional stability.”


Property Description
Quick Fact: Focus on Discomfort Related to Irritative States

Eligibility and Restrictions for Use

The eligibility for using Scabisan Plus is strictly governed by regulatory guidelines, primarily focusing on age and allergy status.

Eligibility Scope

Population Status Regulatory Rule
Populations Allowed Adults and children two months of age and older [FDA/CDC].
Contraindicated Patients with known hypersensitivity to the active ingredient, permethrin, any synthetic pyrethroid, or any component of the cream [FDA].

Age-Related and Conditional Eligibility

Category Regulatory Statement
Infants (Non-Eligible) Safety and effectiveness are not established for infants less than two months of age [FDA].
Pediatric Restricted Use Treatment for children 2 to 23 months is often recommended only under close medical supervision [European SmPC].
Pregnancy Status Classified as Pregnancy Category B by the FDA; use is permitted only if clearly needed due to lack of adequate human studies.
Lactation Status Use is limited, with regulatory guidance advising consideration of withholding the drug or temporary cessation of nursing [FDA].
Application Restrictions Must not be applied to broken skin and contact with the eyes or mucous membranes must be strictly avoided [SmPC].

Connection to the Eligibility Profile

Regulatory documents define who can and cannot use the medicine by establishing absolute contraindications based on allergy status and setting a mandatory minimum age threshold. Use in certain groups, like infants under two years and pregnant or nursing individuals, is conditional or not established, restricting the intended patient population.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Documented Interaction Profile

The official regulatory profile for Permethrin topical, the active ingredient in Scabisan Plus, is defined by the absence of known systemic interactions. Due to the minimal absorption of the active substance through the skin, official labeling states that systemic pharmacokinetic interactions involving enzymes like CYP or transport proteins are not established or not known to occur. Consequently, no formal drug-drug interactions with oral or injectable medicines are documented.

Pharmacodynamic and Administration Restrictions

The primary documented interaction is a pharmacodynamic effect concerning other topical agents applied to the skin. Treatment of skin reactions, such as eczematous-like conditions, with topical corticosteroids creates a documented risk of exacerbating the parasitic infestation. This occurs because the corticosteroid may reduce the local immune response to the mites or lice.

To mitigate this risk, regulatory authorities stipulate specific timing requirements: topical corticosteroids must be withheld prior to treatment with Permethrin Cream. Additionally, the use of other topical medications and cosmetics should be discontinued prior to treatment, as stated in the product information. Interactions with food, alcohol, or herbal products have not been established in official regulatory documents.

Mechanism of Action

How Scabisan Plus Works

The mechanism of Permethrin, the active ingredient in Scabisan Plus, involves the neurotoxic disruption of the target ectoparasites' nervous system (mites and lice). Its action is highly selective, focusing on the physiological components that govern arthropod nerve function.


Targeted Action on Parasite Sodium Channels

The drug's primary action begins with the molecular modulation of voltage-sensitive sodium channels ( Na^+ channels) located on the parasite's nerve cell membranes. Permethrin binds to these channels and prevents their normal inactivation phase, causing a prolonged influx of sodium ions. This sustained inward current triggers uncoordinated and excessive nerve discharges, resulting in the initial hyper-excitation of the nervous system.


Causal Cascade: From Hyperexcitation to Paralysis

The excessive neural firing generated by the open sodium channels causes the functional exhaustion of the parasite's nervous system. This mechanistic cascade progresses from hyperactivity to total conduction block and the resulting irreversible flaccid paralysis. This neurotoxic mechanism extends to the eggs, resulting in the ovicidal effect.


Mechanistic Constraints

The drug's mechanism is inherently constrained by the parasite's biological resistance mechanisms, including Target Site Resistance (mutations in the sodium channel structure) and Metabolic Resistance (upregulated detoxification enzymes) which reduce its capacity to disrupt the nervous system in resistant populations.

Dosage and Administration Information

Scabisan Plus is administered exclusively via the topical route and utilizes two distinct formulations based on the condition being addressed: the 5% Permethrin cream for scabies and the 1% lotion for head lice. The official regimen for both indications is standardized as a single application course.

Administration Protocol

The administration method is strictly defined by the required contact time and body coverage:

  • Scabies (5% Cream): A sufficient quantity, typically up to 30 grams for an average adult, is applied to the entire body, generally from the neck to the soles of the feet. This cream must remain on the skin for a mandatory period of 8 to 14 hours before being removed by washing.
  • Head Lice (1% Lotion): The product is applied to the hair and scalp to achieve saturation and requires a defined contact time of 10 minutes before rinsing with water. Prior to use, the hair must be freshly shampooed, rinsed, and towel-dried.

Frequency and Special Instructions

The protocol establishes that a single application is generally considered curative. A second application is only officially permitted if live parasites or lesions persist, and this retreatment must be administered no less than seven days after the initial dose for either formulation. The medication is approved for patients two months of age and older. For infants and geriatric patients receiving the 5% cream, the application must be extended to include the scalp, temples, and forehead, which differs from standard adult coverage.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Scabisan Plus

This summary describes the types of clinical research conducted on Permethrin, the active ingredient in Scabisan Plus, and outlines what is currently known and what remains uncertain according to authoritative scientific sources.


Evidence for Use in Scabies (Mite Infestation)

Research examining scabies has primarily relied on Randomized Controlled Trials (RCTs) and Systematic Reviews. These studies monitored outcomes related to clinical cure, which is the study endpoint related to the documented change in visible skin irritation, and the microscopic cure rate, which monitors the physical presence or absence of mites and eggs. The evidence base is generally labeled as having a High overall evidence level. However, scientific sources report emerging resistance patterns in mites in certain geographic areas, and data for treating complex manifestations, such as crusted scabies, remain insufficient.


Evidence for Use in Pediculosis (Lice Infestation)

The research base for pediculosis (lice infestation) includes RCTs and Systematic Reviews that examined both head lice and pubic lice. Studies explored outcomes related to eradication, which is the study endpoint related to the documented status of live lice. The evidence is broadly labeled as having a Moderate overall evidence level. The evidence quality varies across studies, partly due to reports of widespread resistance markers documented in lice populations. Additionally, there are documented challenges in differentiating a true treatment failure from re-infestation in the community setting.


Known Limitations and Research Gaps

The research evaluated specific populations, such as children from 2 months of age and older, but data for certain groups remains insufficient. The follow-up durations were limited in many studies, meaning long-term outcomes are not fully established regarding durability of response or frequency of re-infestation after many months. Research provides context but not individual predictions, and study results reflect the specific conditions under which they were conducted.

Key Studies & References

  1. Permethrin Cream 5%: U.S. National Library of Medicine DailyMed Monograph

Frequently Asked Questions (FAQ)

Common questions about Scabisan Plus (FAQ)

Q: If I still have live lice after the first application, when can I use the treatment again?

If live parasites or lesions persist after the initial use, the product protocol allows for a second application. Regulatory documents state that this retreatment must be administered no less than seven days after the initial dose. This minimum timeframe is established by the product protocol before retreatment may be considered.


Q: Is it okay to put on lotion or makeup before applying the Scabisan cream?

Official labeling indicates that the use of other topical medications and cosmetics should be discontinued prior to treatment. This is stipulated to avoid potential pharmacodynamic effects with other topical substances that could be present on the skin.


Q: What should I do if the cream accidentally gets into my eye or mouth?

The product is for external use only, and contact with the eyes or mucous membranes must be strictly avoided. If the cream accidentally gets into the eyes, official information states that they should be flushed with water. If the product is accidentally swallowed (ingested), the label states to seek immediate medical help or contact a Poison Control Center.


Q: How long does the Permethrin stay in my body after I wash it off?

Official information indicates that the active ingredient, Permethrin, is characterized by minimal systemic absorption through the skin—typically less than 2% of the applied dose. The absorbed amount is metabolized into inactive substances and subsequently excreted from the body, primarily through the urine.


Q: How much of the 1% lotion should I use for head lice?

For treating head lice, official instructions indicate that the 1% lotion should be applied to the hair and scalp until it is completely saturated. The administration method is defined by achieving full saturation rather than by a specific dose weight or volume.

How should Scabisan Plus be stored and disposed of?

Storage and Disposal Requirements

This medication must be stored according to regulatory requirements to preserve product stability and ensure household safety.

Scope Item Official Regulatory Requirement
Storage Temperature Store at controlled room temperature (CRT), typically 15 C to 30 C. Do not store above 30 C and do not freeze the product.
Environmental Protection Keep the medicine away from excess heat and moisture. Storage should be in a cool, dry place protected from light.
Container and Safety Store in the original container, keep the container tightly closed, and place the medicine out of the sight and reach of children.
Disposal Instructions Unused or expired product should be taken to a drug take-back location. If unavailable, mix the medicine with an undesirable substance (e.g., cat litter) in a sealed bag before placing it in the household trash. Disposal must prevent the product from entering surface water or drains.

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

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