Scabicin

Quick links to important sections

Scabicin

Selected form

Medically reviewed

Rosario Oropesa

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 Scabicin

Quick Facts

Property Description
Active ingredient Crotamiton
Form Topical cream or lotion
Pharmacological class Scabicide and Antipruritic agent
Common use Addresses parasitic infestation and related itching
Origin Synthetic organic compound

What Type of Medication is Scabicin?

Scabicin is a medical preparation whose active substance is the synthetic organic compound known as Crotamiton. It is fundamentally categorized as a dual-action agent: a scabicide and an antipruritic agent. Crotamiton is a monosemic drug, containing only this single active ingredient. The substance is recognized for its specific actions and is included in essential medicine lists.

As an ectoparasiticide agent, Crotamiton's primary action is targeted against skin-surface parasites. This topical focus is clinically recognized for providing localized treatment for parasitic infestations and associated discomfort.


Scabicin's Composition and Physical Form

Crotamiton is most commonly formulated as a topical cream or topical lotion suitable for cutaneous administration, meaning it is applied directly to the surface of the skin. This formulation is prepared with the active ingredient integrated into a suitable vehicle, typically an emulsified or hydrophilic cream or lotion base.

This physical form is essential because it allows the acaricide agent, Crotamiton, to be delivered and concentrated locally on the skin's surface. Crotamiton is used to address pruritus due to its effect on nerve fibers. This highlights the drug's ability to provide relief from intense itching, often seen in cases requiring effective symptomatic management.


What is the General Therapeutic Purpose of Crotamiton?

The general therapeutic purpose of Crotamiton is to provide comprehensive symptomatic and causative relief by simultaneously addressing the parasitic source and the associated skin irritation. The acaricide properties of the Crotamiton component work to eradicate certain parasitic organisms, such as the Sarcoptes scabiei mite.

Complementing this, the inherent antipruritic effect provides symptomatic relief by helping to calm irritated nerve endings and dampen the sensation of pruritus. This dual capability is a distinctive feature, ensuring the drug addresses both the source of the problem and the associated discomfort for the patient.

What side effects are possible with Scabicin?

Possible Side Effects and Safety Information

Scabicin, containing Crotamiton, has an officially documented safety profile characterized predominantly by localized adverse reactions, consistent with its formulation as a topical scabicide and antipruritic agent. Regulatory documents classify the medicine's side effects almost entirely within the Skin and Subcutaneous Tissue Disorders System Organ Class.


Frequency and Common Reactions

Adverse reactions are classified by frequency based on clinical documentation. Common reactions listed in regulatory summaries include localized irritation, rash, and a transient worsening of pruritus (itching), particularly at the beginning of treatment.

Less frequently, or Rarely, individuals may experience more pronounced skin effects, such as erythema (redness), localized swelling, or a more significant reaction leading to contact dermatitis.


Serious Reactions and Regulatory Constraints

Official labeling recognizes that certain severe reactions may occur. The development of allergic sensitization or severe local reactions are documented as potentially serious adverse events that may necessitate discontinuing the use of the product.

Safety constraints are explicitly defined concerning application. The medication must not be applied to sensitive areas, including the eyes or mouth. Furthermore, to mitigate the risk of severe localized irritation or increased systemic absorption, Crotamiton is restricted from use on acutely inflamed, raw, or weeping skin.

Safety profiles for pediatric and older adult populations have generally been observed to be similar to those in adults. Use in pregnancy and lactation requires careful consideration of the risks versus needs, as stated in prescribing information.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documents regarding Crotamiton (Scabicin) overdose primarily focus on the consequences of accidental oral ingestion. While no specific information is documented on the effects of repeated topical overtreatment, urgent attention is required if the medication is swallowed.

Accidental oral ingestion may result in symptoms of acute intoxication. These documented manifestations include a burning sensation in the mouth, abdominal pain, nausea, and vomiting. Further reported clinical signs include irritation of the buccal, esophageal, and gastric mucosa.

Required Emergency Action

Regulators mandate that in the event of any accidental oral ingestion, a Poison Control Center must be called immediately. This is necessary because of the potential for severe, rare complications. Officially documented severe outcomes include rare cases of loss of consciousness and seizure. Furthermore, a risk of methaemoglobinaemia is documented following accidental ingestion or excessive cutaneous absorption, which is a serious hematological complication.

Management of acute intoxication involves general measures to eliminate the drug and reduce its absorption, along with appropriate symptomatic treatment. For the specific complication of severe methaemoglobinaemia, Methylene Blue may be considered. Symptoms usually resolve following the discontinuation of the drug.

Therapeutic Uses of Scabicin

What Scabicin Treats: Main Uses and Benefits

Scabicin, which contains the active ingredient crotamiton, is applied across domains where additional symptomatic support is needed to address specific skin conditions, including the management of scabies and the treatment of pruritic skin (itching).

The medication is utilized for easing discomfort across these two therapeutic areas. This is applied in addressing symptom clusters that may become intense or disruptive, which commonly present in conditions involving parasitic infestation or symptoms related to inflammatory or irritative states.

The application of this medication provides supportive relief when symptoms interfere with routine activities. It contributes to improved comfort during periods of heightened symptoms and helps maintain a sense of stability when symptoms are more noticeable. This is relevant when supportive symptom management is appropriate, as it is commonly used across conditions presenting with acute episodes. Its use plays a role in managing discomfort during periods of heightened symptoms.


Quick Fact: This medication is used for managing symptoms related to physical discomfort and symptoms that become more disruptive during flare-ups of skin conditions.


Regulatory References

  1. NIH DailyMed drug label for Crotamiton

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Scabicin

Category Description
Populations for whom use is allowed Adult patients (18 years and older) under standard labeled conditions.
Populations for whom use is contraindicated Patients with a known hypersensitivity (allergy) to crotamiton or any components, or those who manifest a primary irritation response to topical products.
Eligibility-related restrictions Application is prohibited on acutely inflamed skin or raw and weeping surfaces until acute inflammation has subsided.
Age-related eligibility rules Pediatric patients (under 18 years): Safety and effectiveness have not been established (US FDA labeling). Children under three years (EU/UK SmPC): Use requires medical supervision.
Pregnancy and lactation eligibility status Pregnancy: US FDA Category C. Should be given only if clearly needed. Lactation: Not recommended unless directed by a physician; the product must not be applied to the nipple area.

The regulatory profile defines who can and cannot use this medicine by establishing absolute contraindications for individuals with known allergies or acute exudative dermatoses. Use is restricted in pediatric populations, where safety data is not established (US), and is conditional on medical supervision for infants. Furthermore, the profile mandates conditional use during pregnancy and lactation, requiring professional guidance and strict adherence to application prohibitions to the nipple area.

What should I know about interactions with other medicines?

Scabicin Interactions with other medicines and products

Official Regulatory Interaction Status

The official regulatory profile for Scabicin, which contains the active ingredient Crotamiton, is defined by the absence of documented pharmacological interactions. Regulatory agencies, including the US Food and Drug Administration (FDA), explicitly state that no specific drug interactions are currently known for the topical lotion formulation. This means that no medicinal product categories are officially listed as interacting with Scabicin.

Consequently, there are no documented pharmacokinetic or pharmacodynamic interactions in the official labeling, such as those involving CYP enzymes or drug transport proteins. The regulatory documents do not name any substances known to alter the systemic exposure of Crotamiton (AUC or Cmax).


Restrictions and Other Substances

The official prescribing information does not contain specific restrictions or warnings concerning the co-administration of other medicines based on a known interaction risk. The label also does not specify mandatory timing-separation rules between Scabicin and any other product. Furthermore, there is no official documentation regarding known interactions with food, alcohol, herbal products, or dietary supplements that would require a label warning or restriction.

As a result of this regulatory finding, the product is not assigned an interaction severity classification in the official documents. The interaction profile is solely characterized by the formal regulatory statement confirming the lack of documented pharmacological risk for the topical formulation.

Mechanism of Action

How Scabicin Works (Crotamiton)

Scabicin (Crotamiton) operates through two distinct pharmacodynamic domains that are both required for the full physiological effect profile.

Modulation of Peripheral Pruriceptive Channels

This domain covers the drug's direct molecular action on nerve endings to modulate peripheral pruriceptive signaling. Scabicin functions as an inhibitor, primarily targeting key ion channels—such as the Transient Receptor Potential Vanilloid 4 ( TRPV4) ion channel—on peripheral sensory neurons. By blocking the critical calcium ion ( Ca^2+) influx necessary for nerve firing, the mechanism results in the stabilization of the nerve ending, dampening the physiological generation and transmission of the pruriceptive signal.

Targeting Mite Neuromuscular Function

This second essential domain involves the drug's action against the Sarcoptes scabiei parasite. The mechanism exerts a localized neurotoxic and musculotropic disruptive effect that interferes with the mite's vital neuro-muscular signaling. This systemic failure within the parasite leads to its functional paralysis and eventual cessation of life functions.

Mechanism Constraints

Crotamiton is a monosemic drug—both actions derive from the same molecule. While the antipruritic targets are defined, the precise molecular target for the scabicidal action remains scientifically unconfirmed. The mechanism's functional effectiveness may also be constrained by the potential for acquired resistance in certain parasite populations.

Dosage and Administration Information

How to Use Scabicin: Administration Guidelines

Scabicin, which contains Crotamiton 10%, is strictly intended for topical, cutaneous application and is only for external use. The product is most commonly formulated as a cream or lotion and the instructions for administration vary based on the intended use.


Dosing and Frequency

The usage pattern for Scabicin is dependent on the therapeutic area and regional prescribing information. Dosing recommendations may vary by region.

Indication Frequency and Regimen Course Duration
Scabies Applied twice, 24 hours apart. OR Once daily for 3 to 5 days. 2 to 5 days
Pruritus Applied to the affected area two to three times daily, or as needed. Varies

Administration Procedure and Constraints

Prior to application, the skin must be clean and well-dried. The lotion formulation requires shaking well before dispensing. For the treatment of scabies, the preparation is thoroughly massaged into the entire body from the chin down, including folds and under the fingernails. The first application is not washed off before the second dose is applied.

Usage instructions include constraints for certain populations. For pediatric patients under three years old, the application is restricted to a maximum of once daily under medical supervision. The preparation must avoid contact with eyes and mucous membranes.

Following the full course for scabies, a cleansing bath is typically taken 48 hours after the last application.

Recent Clinical Evidence

Research Evidence: Overview of Studies for Scabicin

This section outlines the structure of the research base for Scabicin (Crotamiton), drawing from official and peer-reviewed sources that describe its clinical evaluation.


Evidence for Use in Scabies and Pruritus Studies

Research exploring Crotamiton's use in scabies infestation has relied primarily on Randomized Controlled Trials (RCTs). These studies monitored core outcomes such as Treatment Failure, defined by the persistence of mites or new lesions. Studies also examined how treatment outcomes varied among different topical agents. Systematic reviews frequently note that findings across these trials are often heterogeneous due to methodological variations.

The antipruritic action of Crotamiton was studied for use in addressing itching (pruritus) related to certain skin conditions. The evidence includes older Controlled Clinical Trials and recent Pre-clinical Studies that explored changes in pruritus intensity. Some controlled human studies reported observations related to changes in itching, but the measured changes were described as inconsistent when evaluated for isolated pruritus.


Follow-up Durations and Research Gaps

Clinical trials related to scabies observed responses over defined time intervals that were predominantly short-term to intermediate, with study outcomes tracked only up to four weeks. Consequently, long-term effects are not fully established for either use of the medicine.

For specific patient groups, data for certain populations remain insufficient. While research exploring scabies outcomes included both Adults and Children, the clinical research base generally provides limited information about specific measured outcomes in older adults. Furthermore, for the indication of pruritic skin, comparative evidence is lacking in the form of large-scale, modern RCTs, and the overall evidence quality varies across studies.

Key Studies & References

  1. Crotamiton Cream/Lotion Topical Label: DailyMed (NIH Regulatory Document)
  2. WHO Model List of Essential Medicines (Global Health Organization Status)

Frequently Asked Questions (FAQ)

Common questions about Scabicin (FAQ)

Q: What is the main difference between Scabicin and generic versions of the drug?

A: Generic versions of Crotamiton must contain the identical active ingredient, strength, dosage form (cream or lotion), and route of administration as the brand-name product, according to regulatory guidelines. The primary differences typically exist only in the inactive ingredients, such as stabilizers or preservatives, which are used to formulate the product base.

Q: Is Scabicin the same as over-the-counter treatments for similar conditions?

A: No. The official product information classifies Scabicin (Crotamiton) as a prescription-only medication. This regulatory status means it must be obtained with authorization from a licensed healthcare provider, unlike products that are regulated for non-prescription, over-the-counter sales.

Q: Why is Scabicin only available by prescription?

A: Official documentation indicates that topical Crotamiton is restricted to prescription use because of the need for professional supervision during treatment. This supervision is necessary to manage risks associated with improper application, such as use on skin that is acutely inflamed, raw, or weeping, or the potential for increased systemic absorption.

Q: Is Scabicin considered a first-line treatment for the condition it addresses?

A: Regulatory guidance and official clinical documents for treating scabies often reference Crotamiton as an alternative treatment option. Systematic reviews frequently note that treatment outcomes across trials for Crotamiton are often heterogeneous when compared to other topical agents.

Q: What happens if I forget to apply Scabicin as scheduled?

A: Official patient information often describes the standard procedure for a missed application. Generally, the guidelines address when an application may be resumed or skipped, noting that double application is not part of the standard regimen. Patients are guided to refer to the instructions provided with the medicine.

Q: What should be done if too much Scabicin is applied?

A: Guidance on over-application addresses managing signs of severe local irritation or skin sensitization, often involving discontinuation under medical guidance. In the event of suspected accidental oral ingestion, official advice recommends immediately contacting a poison control center or emergency medical services.

Q: Is Scabicin known to cause any changes in sleep patterns?

A: The official product labeling lists adverse reactions primarily within the skin and subcutaneous tissue disorders class, such as localized irritation and rash. The regulatory documents do not list changes to sleep patterns (central nervous system effects) among the commonly reported side effects.

Q: Are there any reports of Scabicin affecting appetite or weight?

A: The formal safety profile and adverse reaction list for Scabicin primarily classify issues as localized skin reactions at the site of application. Regulatory documents do not list changes to appetite or weight among the commonly reported side effects.

Q: Can Scabicin be used for other skin issues besides its main approved use?

A: Official regulatory documents indicate that the medicine's approved use is limited only to the specific conditions for which it was formally studied: scabies and pruritic (itchy) skin. Its use for any other skin issues is not listed in the approved regulatory indications.

Q: Does Scabicin have a risk of causing permanent skin discoloration?

A: The adverse skin reactions documented in the official labeling are all described as transient, meaning they are temporary. There are no reports in the official product information of Scabicin causing permanent skin discoloration.

Q: Why do some people report a feeling of itchiness after they finish using Scabicin?

A: Official product information notes that residual itching is a common occurrence that may continue for a period after a course of treatment for scabies is successfully completed. This lingering symptom is often described as a temporary, post-treatment effect and requires professional guidance to determine if it is indicative of treatment failure.

Q: What is the typical shelf life of a tube of Scabicin?

A: The official shelf life is determined by the manufacturer and is strictly listed as the expiration date on the carton and container of the product. Official guidance indicates that the product should be stored at controlled room temperature and notes that unused or outdated product should be safely discarded after the expiration date.

Q: Are there different strengths or concentrations of Scabicin available?

A: In the US market, topical Crotamiton is currently regulated and supplied only as a 10% cream or lotion formulation. Other concentrations of the drug are not listed in the official dosage forms.

Q: Can Scabicin be used on pets or other animals?

A: The regulation and approval for Scabicin are defined for human use only. Official regulatory documents and prescribing information do not include any guidance or recommendation regarding the use of this product on pets or other animals.

Q: What are the ingredients listed as 'inactive' in Scabicin?

A: The official product labeling is required to list all ingredients, including the inactive components. These are substances necessary to create the cream or lotion base, such as water, various alcohols (like Cetearyl Alcohol), glycerin, and emulsifying agents (like Glyceryl Stearate).

Q: Are there any warnings about driving or operating machinery while using Scabicin?

A: Warnings related to driving are typically given if a drug causes effects that impair cognitive function. Because the documented adverse reactions for Scabicin are primarily localized to the skin, official labeling generally does not include a specific warning about operating machinery or driving.

Q: Is the condition Scabicin treats contagious while using the drug?

A: The official Patient Information Leaflet notes that the underlying parasitic condition is contagious. It advises that close contacts, such as family members and partners, should be checked by a healthcare provider and potentially treated. This indicates that close contacts of the patient should seek professional guidance regarding the risk of transmission.

Q: What is the black box warning (if any) associated with Scabicin?

A: Crotamiton is not currently labeled with a Boxed Warning (often called a 'Black Box Warning') by the US Food and Drug Administration (FDA). This type of warning is reserved for regulatory communication about serious side effects that may be associated with the drug.

How should Scabicin be stored and disposed of?

Storage and Disposal Requirements for Scabicin

Scabicin (Crotamiton) must be stored strictly according to regulatory specifications to maintain stability. The medicine must be kept at a Controlled Room Temperature of 20 C to 25 C (68 F to 77 F) in a closed container. It is essential to protect the product from freezing, excessive heat, moisture, and direct light.

Child Safety and Waste Handling

All Scabicin products must be stored out of the sight and reach of children. Regarding disposal, unused or outdated product should not be kept. Contaminated items, such as clothing and bed linen, should be washed in the hot cycle or dry-cleaned. Any small application tools used must be immediately wrapped and safely discarded.

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

Available in countries:

Equivalent of Scabicin found in:

A-Z Index: