Спрегаль

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Спрегаль

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Method of action: Anti-Scratch

Treatment option: Scabies

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 Спрегаль

Quick Facts

Property Description
Active Ingredients Esbiol (S-bioallethrin), Piperonyl Butoxide
Form Cutaneous spray (aerosol)
Pharmacological Class Ectoparasiticide
General Purpose Elimination of external parasitic infestations
Origin Synthetic

What Type of Medicine Is Спрегаль?

Спрегаль is defined as a specialized, synthetic, combination ectoparasiticide medicine intended for the topical elimination of external parasitic infestations of the skin and hair. The primary agent, Esbiol (S-bioallethrin), is classified within the pyrethroid class of compounds. Pyrethroids are known agents used against insects and pests, which underscores the drug’s primary purpose as a targeted solution for parasitic skin issues. Its function is strictly anti-parasitic, setting it apart from general dermatological treatments.

Composition: Esbiol, Piperonyl Butoxide, and Synergistic Action

The drug's action relies on the essential combination of two active ingredients: Esbiol and Piperonyl Butoxide, delivered externally as a cutaneous spray (aerosol). The formulation is fundamentally a combination product. Piperonyl Butoxide is classified as a metabolic synergist, meaning it enhances the effect of the primary agent by blocking the parasites' natural detoxification processes. This co-formulation strategy is designed to ensure the sustained activity of Esbiol, differentiating it from single-agent pyrethroid applications.

The Core Benefit of the Combination Therapy

The dual-component design ensures a high-level therapeutic benefit by maximizing the acute killing effect against the target organisms. The potent pyrethroid action combined with the enzyme-inhibiting effect of the synergist facilitates the rapid termination of the life cycle of the infesting parasites. This synergistic approach ensures comprehensive and highly effective clearance of the parasitic burden, which directly leads to the resolution of the persistent irritation and discomfort associated with the parasitic problem. The result is a robust, reliable method for achieving full parasitic elimination.

What side effects are possible with Спрегаль?

Possible Side Effects and Safety Information

Official regulatory documents classify the safety profile of the topical combination containing Esbiol (S-bioallethrin) and Piperonyl Butoxide primarily around localized reactions and the potential for hypersensitivity. Adverse reactions are grouped by the affected physiological system.

System-Organ Classes and Expected Reactions

The most commonly encountered effects fall under Skin and Subcutaneous Tissue Disorders. These include localized redness, itching, and skin irritation at the application site. A transient sensation of burning or tingling, known as paresthesia, is also noted; this effect is generally transitory and short-lived. Due to the aerosol form, adverse events are documented under Respiratory, Thoracic, and Mediastinal Disorders, which may involve symptoms such as wheezing or difficulty breathing.

Serious Adverse Reactions and Constraints

The most serious event documented in regulatory information is the potential for a severe systemic allergic reaction (hypersensitivity). Signs may include swelling of the face, lips, tongue, or throat. Furthermore, use is constrained in specific circumstances: the product is classified as harmful if swallowed or inhaled, and contact with eyes or mucous membranes (nose, mouth, vagina) must be avoided to prevent irritation.

Population-Specific Safety Notes

Specific regulatory constraints exist for certain populations. Use of the product in children younger than 2 years old generally requires medical oversight. Individuals with a known ragweed allergy are noted to have a potentially increased risk of sensitivity. Safety information also advises caution for individuals with severe pre-existing skin inflammation or infection at the intended application site.

Overdose and Emergency Response

Officially Documented Overdose Manifestations

An overdose of the S-bioallethrin and Piperonyl Butoxide combination in Спрегаль is officially associated with systemic toxicity, primarily affecting the central nervous and respiratory systems. Documented manifestations may include neurological effects such as convulsions, tremors, altered mental status, headache, and dizziness. Respiratory distress is signaled by difficulty breathing, wheezing, and shortness of breath. Other signs include gastrointestinal disturbances like nausea, vomiting, and excessive salivation, as well as localized symptoms like skin irritation or paresthesias (tingling or numbing sensations).

Severe Outcomes and Required Emergency Action

Overdose is documented with the potential for life-threatening outcomes, including coma and respiratory arrest. The official regulatory guidance mandates seeking immediate medical attention for suspected overdose. You must call a Poison Control Center immediately. Emergency services must be contacted immediately if the individual has collapsed or is not breathing.

A critical procedural caution outlined in regulatory sources is to NOT induce vomiting unless specifically directed by a healthcare professional. This is due to the severe risk of aspiration pneumonia from the product’s vehicle. Management is symptomatic and supportive, and may involve hospital monitoring of vital signs, Electrocardiogram (ECG), and advanced imaging for severe neurological symptoms. Increased exposure risk and symptoms have been noted in young children and individuals with asthma.

Therapeutic Uses of Спрегаль

Addressing Conditions Involving Skin and Hair Infestations

Спрегаль is a topical product generally applied across domains where additional symptomatic support is needed for certain types of symptoms related to physical discomfort. The primary therapeutic domain is used in situations involving certain distressing symptoms linked to organ-specific functional stress.


Supporting Comfort During Acute Symptomatic Periods

The product is relevant for managing conditions characterized by periods of heightened symptoms related to inflammatory or irritative states. The components assist in addressing symptoms related to inflammatory or irritative states that interfere with daily functioning. The product's application is relevant in clinical settings marked by increased discomfort where short-term symptomatic assistance is needed.

This product's use generally helps ease the overall burden of symptoms associated with these episodes and provides supportive relief when symptoms become more noticeable, such as intense itching and rash.

“The product's role is applied in scenarios where additional management of discomfort is required.”

Quick Fact: Support for Symptoms Related to Physical Discomfort (Contributes to easing the overall symptom load during symptomatic periods.)

Regulatory References

  1. HSE.ie Scabies Management Guidelines

Eligibility and Restrictions for Use

Who Can and Cannot Use Спрегаль?

The population eligibility for using the topical ectoparasiticide Спрегаль, which contains S-bioallethrin and Piperonyl Butoxide, is defined by specific official regulatory criteria. These rules establish both absolute prohibitions and conditions under which the product may be used.

Contraindicated Populations

Use is absolutely contraindicated (must not be used) in the following individuals:

  • Patients with a documented allergy or hypersensitivity to the active ingredients (pyrethrins/pyrethrum extract, S-bioallethrin, or piperonyl butoxide).
  • Individuals with a known allergy to plants in the Asteraceae family, such as chrysanthemums or ragweed, due to the risk of cross-reaction.

Age and Physiological Restrictions

Population Group Regulatory Status
Children mathbf< 2 Years Old Restricted Use: Safety is not established; use requires explicit medical consultation and supervision.
Adults and Children mathbfge 2 Years Old Approved for use under standard labeled conditions.
Pregnancy and Lactation Conditional Use: Use requires medical consultation to assess potential risks versus benefits.

Local Condition Restriction

Application is prohibited on skin surfaces that have severe inflammation or open lesions, as the product may exacerbate the underlying dermatological condition.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Regulatory documentation for the topical cutaneous spray mathbfСпрегаль (containing Esbiol and Piperonyl Butoxide) defines the interaction profile primarily by necessary restrictions rather than by specific systemic drug-drug interactions. The formulation's minimal systemic absorption following external application means that systemic interaction warnings are not typically listed in official regulatory labels.


Documented Interaction Restrictions

Classification Formal Restriction or Status
Contraindicated Combinations Use is contraindicated in patients with a known hypersensitivity or allergy to the active components (Esbiol or Piperonyl Butoxide) or substances structurally related to pyrethrins, such as chrysanthemums or ragweed.
Systemic Metabolic Interactions None explicitly documented for interactions affecting liver enzymes (e.g., CYP) or drug transporters of co-administered systemic medicines.
Exposure-Altering Interactions None explicitly documented for substances that alter the plasma levels (AUC or C max) of co-administered systemic drugs.
Food and Substance Status None explicitly documented for interactions with alcohol, food, or herbal products.

Official regulatory sources confirm that no mandatory timing separation rules are required for the administration of other systemic medicines. The official interaction profile is characterized by the absence of specific systemic warnings, focusing instead on the strict patient-condition constraint related to hypersensitivity to the product's components.

Mechanism of Action

Спрегаль works through a highly specific, dual-action mechanism that simultaneously attacks the parasite's nervous system and inhibits its natural detoxification processes, contributing to the elimination of the ectoparasite population.

Disrupting the Parasite’s Nervous Impulse Transmission

The core effect is initiated by Esdepallethrine (S-bioallethrin), a pyrethroid that functions as a neurotoxic agent. This component targets the voltage-gated sodium channels on the mite's nerve membranes. By binding to these channels, Esdepallethrine prevents them from closing, resulting in a prolonged influx of sodium ions and sustained depolarization of the nerve cell. This molecular cascade leads to unchecked hyper-excitation, culminating in the functional paralysis of the organism's motor systems.

Overcoming Parasite Defenses via Metabolic Synergy

The second ingredient, Piperonyl Butoxide (PBO), functions as a synergistic inhibitor by engaging the parasite’s metabolic defense pathways. PBO actively blocks the function of Cytochrome P450 monooxygenase enzymes—the mite's primary mechanism for detoxifying pyrethroids. By suppressing this metabolic clearance, PBO ensures that the neurotoxic Esdepallethrine maintains a higher, sustained concentration in the mite's nervous system, promoting a higher probability of organism mortality.

Dosage and Administration Information

The administration of the S-bioallethrin/Piperonyl Butoxide cutaneous spray is governed by a defined protocol focusing on a single, time-bound application. The medicine is strictly for external use via the cutaneous route as a pressurized lotion. This structured regimen defines the precise method of use.

Administration Scope

The regimen specifies a single, comprehensive application. This dose is applied to the entire body surface—excluding the face—and must remain in contact with the skin for 12 hours. The application is often performed in the evening to accommodate this contact time. For infants and young children under two years of age, medical consultation is necessary before initiating treatment, reflecting the need for specialized guidance in this population.

Special Procedural Conditions

Proper administration requires adherence to specific environmental and post-treatment conditions. The application must occur in a well-ventilated area and away from flames or heat sources, with no smoking permitted. The user must take steps to protect the face, eyes, nose, and mouth from the spray to prevent accidental exposure. Furthermore, the protocol mandates that all close contacts should be treated simultaneously. After the mandatory 12-hour duration, the body must be thoroughly washed with soap and rinsed abundantly.

Treatment Course Duration

The treatment is considered a single-course intervention. If related issues persist beyond an 8-day period, medical advice must be sought before any decision is made to repeat the application. These parameters control the overall duration of the treatment pathway.

Recent Clinical Evidence

Research evidence / Overview of studies for Спрегаль


Evidence for Use in Human Scabies (Mite Infestation)

Research has explored the use of the pyrethroid and synergist combination found in this medicine in the context of treating human scabies, an infestation studied in the context of clinical trials. Studies were used in research examining symptom intensity or variability and have primarily taken the form of Randomized Controlled Trials (RCTs) and controlled comparative trials. These studies focused on measuring outcomes related to clinical assessment measures, measurements related to itching intensity (pruritus), and other outcomes linked to inflammatory or irritative states. Study populations included general adults and children diagnosed with scabies, along with cohorts from specific groups, such as institutionalized patients.

The findings describe patterns observed in the studies related to patterns in clinical assessments following the application of the medicine. Research highlights changes measured during the study period, comparing the combination to other treatments in trials. Some trials described patterns in the evolution of lesions and in the severity of itching in the short term. Some scientific reviews have described the total volume of evidence specific to the Esbiol/PBO formulation as limited.


Evidence for Use in Pediculosis (Lice Infestation)

The pyrethroid-PBO class combination was also studied for use in Pediculosis (lice infestations). The research examined this context through both Randomized Controlled Trials (RCTs) and by gathering evidence derived from settings with varying symptom burdens, a context documented by its inclusion in established clinical guidelines. Research explored short-term symptom changes and monitored outcomes such as measures of louse absence, assessments of nit presence, and the assessment of the need for a re-treatment application following the initial use.

Findings indicate that studies monitored how symptoms evolved in the observed populations regarding acute parasite assessment findings. Research describes that for this class of treatment, studies reported that some subjects required a repeat application, typically assessed at the 7-day mark. However, despite the substantial body of research, the data show patterns related to therapeutic failure and patterns of resistance in certain lice populations. Studies contribute to the broader evidence landscape, particularly regarding resistance, which helps contextualize how patients reported their experience.


What Is Still Uncertain About Спрегаль

The research base has several identified limitations that help contextualize what is known. Evidence quality varies across studies, and comparative evidence is lacking for some of the newer therapeutic alternatives. Subgroup findings are uncertain, as data for specific populations (beyond children and adults) remain insufficient. The follow-up durations were limited, meaning that long-term effects regarding the durability of clinical assessment findings are not fully established by the existing research.

Frequently Asked Questions (FAQ)

Common questions about Спрегаль (FAQ)


Q: Can you use Спрегаль more than once if the problem seems to come back?

Official documentation describes the recommended use of the medicine as a single-course intervention. If you notice that related issues persist after a period of 8 days, official sources advise seeking medical advice before a repeat application is considered.


Q: Are there any specific cleaning steps needed for clothes or bedding after using Спрегаль?

While the product label focuses on treating the individual, authoritative patient guides for this class of medicine often advise addressing potential re-infestation by cleaning clothing, bedding, towels, and washcloths using washing cycles that involve high heat.


Q: What should be done if Спрегаль accidentally gets into the eyes or mouth?

Official safety information classifies the product as potentially harmful if swallowed or inhaled. Because contact with the eyes or mucous membranes must be strictly avoided, official safety instructions generally advise that if accidental exposure occurs, the affected area should be rinsed thoroughly with water.


Q: Can Спрегаль be used by a pregnant or breastfeeding person?

Regulatory documents classify the use of this medication during pregnancy and lactation as conditional. This means that its use requires explicit medical consultation and supervision to assess the potential benefits against any possible risks to the baby.


Q: What common household products might interact negatively with Спрегаль?

Authoritative patient directions for this category of topical medicine often advise against using certain products immediately before application, such as conditioners or shampoos that contain conditioner. This is often noted because these products may affect the medication's ability to maintain contact with the target area on the skin.


Q: Are there specific instructions for applying Спрегаль to the face or head?

Official administration instructions specify that the medicine should be applied to the entire body surface, with the specific exclusion of the face. Users are required to take steps to protect the face, eyes, nose, and mouth from the spray during application, as described in the use instructions.


Q: Is it necessary for everyone in a household to use Спрегаль at the same time?

Yes, the official protocol mandates that all individuals identified as close contacts of the affected person should be treated simultaneously. This is a procedural requirement intended to help ensure the complete elimination of the parasites and to prevent the cycle of re-infestation.


Q: Is it true that symptoms can sometimes worsen temporarily after using Спрегаль?

Patient-focused information for this class of topical medication indicates that the pre-existing irritation and itching caused by the original infestation may temporarily increase shortly after use. This temporary increase in irritation is a pattern observed in studies of this class of medicine.


Q: Are the active ingredients absorbed into the bloodstream significantly?

Regulatory documentation, particularly concerning the interaction profile of the drug, notes that there is minimal systemic absorption following its external application to the skin. This characteristic helps to inform the product's safety profile.


Q: Is it possible to have an allergic reaction to the inactive ingredients in Спрегаль?

Yes, hypersensitivity is formally listed as a contraindication for both the active ingredients and any of the product’s excipients (inactive ingredients). Official labeling requires a general warning for allergy to any substance in the full product composition.


Q: Is Спрегаль used for treating something other than scabies?

The official documentation confirms that, in addition to human scabies (mite infestation), the medication has also been studied and is indicated by regulatory documents for the use in certain cases of pediculosis (lice infestations).


Q: Does Спрегаль have any known interactions with common over-the-counter pain relievers?

The regulatory documentation for the topical spray does not list any explicit systemic drug-drug interaction warnings for co-administered systemic medicines. This includes common oral over-the-counter pain relievers.


Q: Are there any reported interactions between Спрегаль and alcohol?

Official regulatory sources explicitly confirm that no documented interactions are listed for alcohol. The topical nature of the application and minimal systemic absorption help characterize the product’s interaction profile.


Q: What kind of research studies have been conducted on Спрегаль?

Regulatory submissions include clinical evidence derived from studies primarily categorized as Randomized Controlled Trials (RCTs) and controlled comparative trials. These studies examined clinical assessments, patterns in lesion evolution, and changes in symptom intensity.


Q: Does the efficacy of Спрегаль change if it's applied to a large area of the body?

The official administration regimen mandates a single, comprehensive application to the entire body surface (excluding the face). The administration regimen specifies total coverage as the required application method for the drug’s intended use.


Q: Can Спрегаль be used alongside other topical treatments?

While the official label does not list specific topical drug-drug interactions, the official documentation focuses on the single, time-bound application of this product alone. A medical consultation is typically noted as necessary when considering the simultaneous use of other topical agents.


Q: Does the packaging for Спрегаль contain any warnings about flammability?

As the product is a pressurized aerosol formulation, the labeling requires mandatory warnings related to flammability. The labeling requires warnings to keep the product away from heat and sources of ignition, and notes that the product should not be sprayed on an open flame or punctured.


Q: Is there a difference between Спрегаль and permethrin treatments?

The official product label identifies the active ingredient in Спрегаль as S-bioallethrin (a pyrethroid) combined with Piperonyl Butoxide. This composition distinguishes the product from treatments where permethrin is used as the sole active pyrethroid ingredient.


Q: Can using too much Спрегаль cause more side effects?

Authoritative patient directions for this class of medicine advise against using more than the directed amount. The documentation for this class of medicine notes that using more than the directed amount may increase the chance of absorption through the skin, which is generally associated with an increased risk of side effects.


Q: Does exposure to sunlight change how Спрегаль works?

Official storage and stability documentation requires the product to be protected from direct sunlight. The product is required to be protected from direct sunlight as part of the handling and storage instructions to maintain the product’s quality and stability.


Q: Are there any official reports of resistance to Спрегаль?

The research evidence base for this class of treatment and its target organisms documents observed patterns related to therapeutic failure and reported patterns of resistance in certain parasite populations. This is an ongoing area of monitoring in research.


Q: What information is available regarding long-term effects of using Спрегаль?

The existing research base has identified limitations regarding follow-up duration after use. This means that long-term effects concerning the durability of clinical assessment findings are not fully established by the current evidence.


Q: Does the effectiveness of Спрегаль depend on the time of day it is applied?

The official protocol often notes evening application, as this timing facilitates keeping the medicine on the skin for the mandatory 12-hour contact time, which is the required condition for its intended effect.

How should Спрегаль be stored and disposed of?

Storage & Disposal Map: How to Store and Dispose of Спрегаль — Official Regulatory Information

Storage & disposal scope Requirements from Official Labeling
Labeled storage temperature requirements Store at room temperature, generally below 25 C to 30 C depending on the region. Avoid freezing and exposure to extreme heat.
Light/moisture protection requirements Keep in a dry place and protect from direct sunlight to maintain stability.
Handling requirements Keep away from heat and sources of ignition; do not store or use near open flames. Do not puncture or incinerate the container, as it is a pressurized and potentially flammable aerosol.
Packaging-related storage rules Store in the original container and keep the container tightly closed and properly labeled.
Child-protection storage requirements The product must be kept out of the sight and reach of children and stored in a locked location to prevent unauthorized access.
Disposal instructions Dispose of contents and container in accordance with local, regional, and national regulations. Unused product should not be poured into water systems.

Official storage documentation requires the product to be kept in a temperature-controlled, secure environment, separate from food and feed. The disposal profile is dictated by environmental protection rules, prohibiting discharge into drains, surface water, or groundwater due to the ectoparasiticide's toxicity to aquatic life.

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

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