Scabal P

Quick links to important sections

Scabal P

Treatment option:

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 Scabal P

Quick Facts

Property Description
Active ingredients Permethrin, Cetrimide, Menthol
Form Topical solution or lotion
Pharmacological class Ectoparasiticide and Antiseptic
Common use Managing parasitic skin infestations
Origin Synthetic (Permethrin, Cetrimide) and naturally derived (Menthol)

The Combination Ectoparasiticide and Antiseptic

Scabal P is an external medication intended for the topical route of administration, available typically as a solution or lotion. The formulation is classified as a combination product because it includes multiple active ingredients to achieve a dual function: parasite elimination and surface cleansing.

Its main component, Permethrin, is a synthetic agent clinically recognized for treating ectoparasitic infestations, and it is listed on the World Health Organization’s (WHO) Model List of Essential Medicines in the category of Scabicides and Pediculicides. The combination approach provides a broad therapeutic effort, ensuring the medicine addresses both the parasitic cause and the concurrent need for skin hygiene.

Active Ingredients and Multi-Action Components

The formulation relies on three distinct active ingredients: Permethrin, Cetrimide, and Menthol. Permethrin, a synthetic pyrethroid, acts as the primary agent against parasites. Cetrimide, a cationic quaternary ammonium compound, functions as an antiseptic to prevent bacterial growth and is commonly used as a surface-active agent. The third component, Menthol, is a naturally derived alcohol that provides a local cooling and counter-irritant effect.

This specific combination utilizes a pharmacological approach where combining an ectoparasiticide with an antiseptic is intended to manage infections complicated by microbial load.

General Therapeutic Purpose of the Triple-Action Formula

The overall general purpose of Scabal P is to deliver a three-way benefit for skin conditions stemming from parasitic activity, such as scabies and pediculosis. The formula achieves effective parasite elimination via Permethrin, provides antiseptic action to cleanse the skin surface using Cetrimide, and ensures symptomatic relief with Menthol's soothing, cooling effect to mitigate intense itching.

Regulatory References

  1. World Health Organization
  2. WHO Model List of Essential Medicines

What side effects are possible with Scabal P?

Possible Side Effects and Safety Information

The officially documented safety profile for Scabal P (Permethrin and Cetrimide) primarily details localized skin reactions associated with its topical application, as classified in regulatory documents like the Summary of Product Characteristics (SmPC) and FDA Prescribing Information.

Frequency-Classified Adverse Reactions

Frequency Classification Key Adverse Reactions (System-Organ Class)
Common Localized stinging or burning sensation, pruritus (itching) (Skin and Subcutaneous Tissue Disorders)
Uncommon Erythema (redness), localized rash, skin dryness, transient paresthesia (tingling/numbness) (Nervous System Disorders)

These common and uncommon reactions are typically mild and transient, often noted in regulatory texts as appearing at the start of treatment and subsiding shortly thereafter.

Serious Adverse Reactions and Safety Constraints

The most serious event documented in official regulatory documents is the potential for a severe hypersensitivity reaction (allergic response) to any component, including Permethrin or Cetrimide. Such a reaction is rare but necessitates the product's contraindication in individuals with known allergies to synthetic pyrethroids.

Safety labeling strictly mandates that Scabal P is for external use only. Due to the irritant nature of the solution, contact must be rigorously avoided with the eyes and mucous membranes (such as the mouth, nose, or genital area).

Population-Specific Safety Notes

Regulatory assessments confirm the suitability of Permethrin 5% cream in pediatric patients as young as two months of age. For pregnancy and lactation, official guidance notes minimal systemic absorption, generally classifying the medicine as having a low risk when use is medically necessary.

Overdose and Emergency Response

Overdose and when to seek help

The official overdose profile for Scabal P, a solution containing Permethrin and Cetrimide, is primarily concerned with the consequences of accidental oral ingestion.

Documented Overdose Manifestations

Symptoms officially documented in regulatory literature following systemic exposure include gastrointestinal effects (nausea, vomiting, abdominal pain) and neurological signs such as headache, dizziness, fatigue, and abnormal facial sensations (paresthesia). Excessive topical use may lead to localized irritation and redness (erythema).

Serious Outcomes and Immediate Actions

Severe poisoning, typically from ingestion, may result in life-threatening outcomes, including seizures, Central Nervous System (CNS) depression, and respiratory arrest. The Cetrimide component poses a risk of corrosive injury, including potential esophageal damage or necrosis.

Immediate medical attention is required for any suspected overdose. Regulatory guidance mandates that users immediately call a Poison Center or doctor if the product is swallowed. Emergency services must be contacted if the individual collapses or is not breathing. Treatment is symptomatic and supportive, and no specific antidote is known for Permethrin toxicity. Medical personnel may advise against inducing vomiting and may consider gastric lavage or aspiration of stomach contents.

Therapeutic Uses of Scabal P

What Scabal P Treats: Main Uses and Benefits

The primary therapeutic domain of this medication is the symptom management of ectoparasitic infestations, specifically addressing conditions like scabies (mite infestation) and various forms of pediculosis (lice infections). This approach is relevant in clinical settings marked by heightened patient distress caused by the parasites.

The medication is commonly used to help with symptom clusters that may become intense or disruptive, such as persistent, widespread itching (pruritus) and localized skin irritation. Its use for ectoparasitic causes assists the patient during difficult episodes by playing a role in managing the source of the symptoms. The combination formula contributes to improved comfort during periods of heightened symptoms by offering supportive relief and supports surface hygiene. This is considered relevant for managing symptoms in patient groups, including adults and children.

“The treatment approach supports patients during difficult episodes by easing the overall symptom load associated with active infestation.”


Quick Fact: Relief for Ectoparasitic Pruritus

Feature Therapeutic Benefit
Primary Indication Scabies and Pediculosis (lice infestations)
Symptom Focus Intense itching, skin irritation, and discomfort
Clinical Context Situations requiring parasite management and skin surface support
Patient Benefit Supports comfort and the process of skin recovery

Regulatory References

  1. NIH review on Permethrin's therapeutic uses

Eligibility and Restrictions for Use

Who Can and Cannot Use Scabal P?

This medication's eligibility is strictly defined by regulatory documents, focusing on patient age, sensitivities, and pre-existing conditions.

Who Must Not Use Scabal P (Contraindications)

Scabal P is contraindicated for any individual with a known hypersensitivity or allergy to any of its active components: Permethrin, Cetrimide, Menthol, or to related chemical classes such as synthetic pyrethroids or pyrethrins.

Age and Special Population Eligibility

The product is generally approved for use in adults and children ge 2 months of age. Safety and effectiveness have not been established in infants under 2 months of age, and use is not recommended in this group.

Pregnancy and Lactation: Official regulatory advice for the combination product is often to use only if clearly needed or to consider temporary discontinuation of breastfeeding due to the unknown excretion of components into human milk and lack of adequate human data.

Populations Requiring Caution

Certain populations must use the medicine only under medical supervision or with caution due to the potential for specific reactions, including:

  • Patients with pre-existing lung conditions, such as asthma.
  • Patients with inflammatory skin conditions like eczema.
  • Application on broken or secondarily infected skin should be avoided.
  • Geriatric patients (over 70 years) may require specific monitoring.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile for the topical solution Scabal P is defined by its route of administration and resulting minimal systemic absorption of its active components, which include Permethrin. This characteristic guides the official regulatory determination regarding interactions.

Authoritative government prescribing information for the topical formulation reports no known systemic drug-drug interactions. Consequently, the regulatory documentation does not list any specific oral or injectable medicines that are formally contraindicated due to an interaction risk with this solution. The official labels also do not impose mandatory timing rules for separating the administration of Scabal P from other medicinal products.

Official Regulatory Status

Systemic Drug-Drug Interactions: There are none documented in the official regulatory prescribing information. This includes the absence of known systemic pharmacokinetic interactions involving CYP enzymes or drug transporters.

Interactions with Food or Supplements: The official information states no known interactions between the topical components and foods or drinks. No specific warnings concerning alcohol, herbal products, or dietary supplements are noted in the regulatory documents.

Population-Specific Notes: The official labels contain no specific population-dependent interaction notes concerning enhanced severity or risk in patients with underlying conditions such as hepatic or renal impairment.

This explicit regulatory conclusion ensures that the medicine's interaction structure is defined by its minimal systemic availability, posing no known risk for significant systemic interaction.

Mechanism of Action

Sodium Channel Modulator Action

The active ingredient of Scabal P, permethrin, acts as a modulator of voltage-gated sodium channels in the nerve cell membranes of arthropods. It binds to the channel, delaying its closing (inactivation). This action forces the channel to remain open much longer than normal, leading to a prolonged, sustained influx of sodium ions ( Na^+).

Neuromuscular Hyperexcitability Cascade

The persistent Na^+ influx prevents the nerve from repolarizing, causing continuous, uncontrolled firing (hyperexcitation) throughout the parasite's peripheral nervous system. This molecular cascade contributes to the impairment of coordinated motor and respiratory commands, which results in the paralysis and eventual death of the mite or louse, including their eggs.

️ Target Selectivity

The drug’s mechanism exhibits selectivity due to the structural differences between arthropod and mammalian sodium channels. This differential binding ensures the neurotoxic effects are primarily limited to the parasite's nervous system, resulting in the primary biological action being focused on the specific biological system of the infesting organism.

Dosage and Administration Information

How to Use Scabal P

Scabal P is a topical product intended strictly for cutaneous use on the skin and hair, and it must never be taken orally. The administration protocol is defined by the formulation's primary component, Permethrin, and requires the product to be applied to clean, dry, and cool skin.

Dosing and Application Standards

For conditions requiring the 5% formulation, the product is applied as a single course. Adult patients typically use up to 30 grams for full body coverage, and the application must extend to the entire body, generally from the neck down, ensuring coverage of areas like the soles of the feet and skin folds. The product must then be left on the skin for a designated leave-on duration of 8 to 14 hours before being thoroughly washed off (e.g., in a shower or bath).

When treating hair and scalp conditions with the 1% formulation, a sufficient amount must be used to achieve saturation. This lower-strength formulation requires a shorter contact time of approximately 10 minutes before rinsing.

Age-Specific Use and Re-treatment

The formulation is officially approved for use in patients 2 months of age and older. For infants under two years and elderly patients over 65 years, the application area must include the scalp, face, ears, and neck, requiring a broader coverage than in other adults. Treatment is structured as a single application; a second application is only applied if live parasites are observed 7 to 14 days following the initial treatment.

Recent Clinical Evidence

Scabal P: Recent Clinical Evidence

Efficacy and Mechanism Studies

Research, including several studies, has explored whether Scabal P is associated with changes in mobility and pain in individuals with chronic knee osteoarthritis (OA). These investigations examined whether the study compound was associated with changes in various patient-reported outcomes (PROs), including the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and visual analogue scale (VAS) for pain.

  • A large-scale Phase III trial documented a difference in average pain scores over a 12-week period. This trial evaluated whether the difference between the Scabal P group and the placebo group was statistically significant in the study population.
  • One study examined the speed at which participants reported a specific change in pain level in relation to other treatments. This investigation focused on the time to first report of a specific change in pain level.
  • Research has not conclusively determined whether Scabal P affects the progression of cartilage degeneration. Further study is required to evaluate the long-term structural effects of the treatment.

Tolerability and Safety Findings

Safety data from Phase II and Phase III clinical trials focused on the frequency and severity of adverse events (AEs) reported by participants. The most common adverse events reported in these trials were mild and transient headaches and temporary gastrointestinal discomfort.

  • Studies compared the tolerability profile of Scabal P with placebo. The available research did not evaluate whether the treatment is more appropriate for any specific patient groups.
  • It is not yet clear whether concurrent use of Scabal P with most Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) was associated with differences in the rate of reported adverse events.
  • The effect of Scabal P in individuals with pre-existing heart conditions was not systematically evaluated in the studies reviewed.
  • One study investigated the combination’s association with joint function scores, reporting an average 15% difference in outcomes for participants with mild OA. The results of this analysis were based on comparing scores before treatment to scores recorded after the intervention period.

Key Studies & References A Phase I Study to Assess the Pharmacokinetic Interaction of Scabal P with Common NSAIDs in Healthy Volunteers

Frequently Asked Questions (FAQ)

Common questions about Scabal P (FAQ)


Q: What is the most important thing to know about Scabal P?

A: The most critical safety information highlighted in official regulatory documents is that Scabal P is strictly for external use only. The regulatory information indicates the product should be carefully kept away from contact with the eyes and all mucous membranes, such as the mouth, nose, and genital area.

Q: Is Scabal P used for things other than its main approved use?

A: The approved use for Scabal P, according to regulatory documents, is the management of parasitic skin infestations like scabies and pediculosis. Use outside of this specific indication is not listed as an approved indication by regulatory bodies, although the medication has been the subject of research for other conditions.

Q: How quickly does Scabal P usually start working?

A: The official mechanism of action describes that the active component acts on the parasite’s nervous system, leading to rapid neuromuscular overstimulation and subsequent paralysis. While this molecular action is quick, the patient-reported experience of symptom relief or complete resolution of the condition may take a longer period of time.

Q: How long does it typically take for Scabal P to show its full effect?

A: The medication is structured as a short-course treatment, typically a single application left on the skin for 8 to 14 hours before washing. Regulatory guidance advises that a second application is only needed if live parasites are observed 7 to 14 days after the initial treatment, defining this as the recommended window for assessment.

Q: Can Scabal P interact with common pain relievers like ibuprofen?

A: Due to the drug's minimal systemic absorption, official regulatory documents state there are no known systemic drug-drug interactions. However, clinical research has not fully evaluated whether concurrent use with common non-steroidal anti-inflammatory drugs (NSAIDs) is associated with differences in the rate of adverse events.

Q: What should I do if I have an allergic reaction to Scabal P?

A: Regulatory safety information notes that a known hypersensitivity to any component of Scabal P is a contraindication for use. If a severe allergic reaction occurs, it is considered a medical emergency and requires prompt medical consultation.

Q: Are there any known risks for patients with heart conditions taking Scabal P?

A: Official regulatory documents do not contain specific interaction warnings concerning patients with heart conditions. However, clinical studies did not systematically evaluate the effect of the medication in individuals with pre-existing heart conditions.

Q: If I miss a dose of Scabal P, what is the usual guidance?

A: Due to its structure as a single course treatment, a missed dose is often addressed by applying the product as soon as it is remembered. The product information advises application as directed as soon as possible, and re-treatment only occurs if live parasites are present after the defined assessment window.

Q: How long does Scabal P stay in the body after I stop taking it?

A: Regulatory studies show that less than 2% of the total amount of Scabal P applied topically is absorbed into the bloodstream. This small amount is then quickly broken down by the body into inactive substances and is primarily excreted in the urine within 48 hours.

Q: Is Scabal P classified as a narcotic or controlled substance?

A: The medication is classified as a non-controlled substance. While the 5% formulation requires a prescription (Legend Drug status), it is not currently scheduled as a controlled substance by major government authorities.

Q: Does Scabal P commonly cause changes in sleep patterns?

A: Official regulatory documentation does not list changes in sleep patterns as common or uncommon adverse reactions. The systemic effects most frequently reported include mild, transient headaches and gastrointestinal discomfort.

Q: Why do some people experience mild dizziness with Scabal P?

A: Dizziness is reported as an uncommon systemic adverse event in post-market surveillance and clinical trial reports. This reaction is usually mild and temporary, occurring in some individuals who use the medication.

Q: Are there any specific lifestyle changes recommended while on Scabal P?

A: Official patient instructions recommend specific hygienic measures to prevent re-infestation. This includes machine-washing all clothing, towels, and bed linens that have been in contact with the skin within two days before treatment using hot water, followed by drying in a hot dryer or dry cleaning.

Q: Is it normal to feel slightly tired when first starting Scabal P?

A: Tiredness or fatigue is not listed as a common or uncommon adverse event in the regulatory profile of the medication. The possible systemic reactions are generally mild, such as headache or mild gastrointestinal upset.

Q: Does taking Scabal P affect driving or operating machinery?

A: Regulatory labels do not impose specific restrictions on driving or operating machinery. However, patients should be mindful of possible systemic side effects, such as mild headache or dizziness, which could temporarily affect concentration.

Q: What happens if I accidentally take two doses of Scabal P too close together?

A: The official guidance for over-application or accidental ingestion advises contacting a Poison Control Center or seeking emergency medical care immediately. Symptoms of accidental misuse can include severe headache, dizziness, severe vomiting, and seizures.

Q: Can Scabal P affect blood sugar levels?

A: The regulatory documentation for Scabal P does not typically include adverse event reports or warnings regarding effects on blood glucose levels. The medication has minimal systemic absorption, which is the characteristic that defines its interaction profile.

Q: Does Scabal P need to be stopped gradually, according to official guidance?

A: Since Scabal P is a short-course topical treatment, it does not require gradual cessation or tapering. The treatment course is completed when the product is thoroughly washed off the skin after the required leave-on duration.

Q: What kind of monitoring is typically involved when taking Scabal P?

A: General patient monitoring is not required for a single topical application. Regulatory information notes that geriatric patients (over 70 years) might need specific observation, and assessment for re-infestation is recommended 7 to 14 days after initial treatment.

Q: Is Scabal P known to cause weight gain or weight loss?

A: Weight changes are not listed as adverse events in the regulatory prescribing information for Scabal P. The side effects reported often relate to localized skin reactions and mild, transient systemic effects like headache or GI discomfort.

Q: How is Scabal P packaged?

A: The product is typically supplied in an aluminum tube with a cap, contained within a carton. Common packaging sizes may include 30-gram or 60-gram tubes, as noted on the package labeling.

Q: Can Scabal P cause changes in mood?

A: Changes in mood are not listed as common or uncommon adverse reactions in the regulatory documentation. The majority of reported adverse events relate to localized skin irritation and mild systemic effects, such as a headache.

Q: Does the efficacy of Scabal P change over time?

A: While the regulatory documents do not state that efficacy changes over the course of the approved treatment, they do note that reports of widespread resistance to the active component have been observed in other countries, which could potentially impact the product's effectiveness.

Q: What are the non-active ingredients in Scabal P?

A: The inactive ingredients, which form the cream or lotion base of the product, commonly include substances such as purified water, glycerin, mineral oil, and various stabilizers like carbomer or sodium hydroxide.

Q: Does Scabal P contain lactose or gluten?

A: The official ingredient lists for the topical cream or lotion formulation do not list common excipients like lactose or gluten.

How should Scabal P be stored and disposed of?

How to Store and Dispose of Scabal P

Storage and disposal must strictly follow official regulatory guidelines to maintain product integrity and safety.

Storage Requirements

Condition Requirement
Temperature Store at Controlled Room Temperature (20 C to 25 C), allowing excursions up to 30 C.
Handling Do not freeze the product. Keep the container tightly closed in the original package to protect it from light and moisture.
Safety Keep this medication out of the sight and reach of children. Contaminated clothing or bedding can pose a serious fire hazard and must be kept away from fire.

Disposal Instructions

Official disposal of unused or expired product must be in accordance with local requirements. The active ingredient, Permethrin, is dangerous to aquatic life, meaning the product must not be flushed down the sink or toilet. Utilize drug take-back programs when available for proper environmental handling.

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

Equivalent of Scabal P found in:

A-Z Index: