Bombard

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Bombard

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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 Bombard

Quick Facts

Property Description
Active Ingredient Deltamethrin
Form Solution, Suspension, Pour-on formulation
Pharmacological Class Pyrethroid Insecticide, Ectoparasiticide
Common Use Control of external parasites (e.g., ticks, mites, flies)
Origin Synthetic

What Type of Agent is Bombard? (Identity and Classification)

The preparation containing the active substance Deltamethrin is fundamentally classified as an Ectoparasiticide and a Synthetic Pyrethroid Insecticide. This specialized classification confirms that its primary role is chemically targeting and eliminating parasites that live externally on a host or within its direct environment. Deltamethrin belongs to the highly potent Type II pyrethroid subclass, a status that is recognized for providing superior photostability and prolonged residual activity compared to older Type I pyrethroids. Deltamethrin is widely used as a broad-spectrum insecticide and ectoparasiticide for managing insect populations.

Composition and Origin: The Deltamethrin Core

The core component is the chemical substance Deltamethrin (C22H19Br2NO3), which is a specific single, potent synthetic stereoisomer, providing a purity and consistency that distinguishes its chemical identity from other pyrethroid mixtures. The preparation is typically provided in high-level dosage form(s) such as a solution, a suspension, or a specialized pour-on formulation, all designed for topical or environmental administration. These formulations are strategically designed to ensure maximum distribution and adhesion to surfaces or the coat of an animal, supporting its function as a contact insecticide.

General Principle of Action (The Essential Function)

The primary function of this agent is rooted in its highly effective neurotoxic effect on targeted pests, classifying it as a sodium channel modulator. This action works by binding to the nerve cell membranes of the parasite, preventing the normal closure of the sodium ion channels. This sustained electrical discharge in the nervous system is a mechanism that induces rapid, severe neurotoxicity in arthropods. This continuous stimulation leads quickly to the paralysis and subsequent elimination of the external parasite, thus fulfilling the preparation’s general ectoparasiticidal purpose.

What side effects are possible with Bombard?

Possible Side Effects and Safety Information

Regulatory safety documents classify the adverse reactions associated with the active substance, Deltamethrin, predominantly in the Very Rare frequency category, meaning they are observed in less than 1 in 10,000 animals treated. These documented effects are classified by System-Organ Class and mainly concern the Skin and Subcutaneous Tissue Disorders and the Nervous System Disorders.

Officially listed local adverse reactions, which typically occur within 48 hours following treatment, include transient application site signs such as pruritus (itching) and squamosis (flaky, scaly skin). Neurological manifestations, such as tremors, agitation, and prostration, are also documented within the Very Rare frequency band, often reflecting the substance's neurotoxic nature to arthropods.

Critical safety documentation focuses on restrictions and special population considerations. Use is formally contraindicated in sick or convalescent animals, those with extensive skin lesions, or those with known hypersensitivity to the active substance. The product is explicitly contraindicated for use in non-target species, particularly dogs and cats, due to the risk of fatal toxic neurological signs. Safety has not been established during pregnancy and lactation, necessitating a formal assessment before use. Furthermore, regulatory labels document that the product’s toxicity is enhanced when co-administered with organophosphorous compounds, leading to a safety restriction against concurrent use.

Overdose and Emergency Response

Overdose and When to Seek Help

The following information is derived from official government regulatory sources and addresses the documented clinical profile and required actions in case of a Bombard overdose. It is strictly descriptive and contains no medical advice or therapeutic instructions.


Documented Overdose Manifestations

Official labeling describes overdose presentations, which may include severe clinical findings such as marked Central Nervous System (CNS) depression, leading to somnolence or coma. Severe cardiovascular instability, including significant hypotension and specific ECG abnormalities (e.g., QTc prolongation), are also documented. In some cases, severe outcomes like respiratory depression or seizures have been reported.


Emergency Actions and Management

Immediate medical attention is required upon any known or suspected overdose of Bombard. Regulatory documents explicitly state that individuals should contact a Poison Control Center immediately or be taken to an emergency medical facility without delay, even if symptoms are not yet apparent.

Treatment procedures are generally focused on symptomatic and supportive care. This includes ensuring an adequate airway, monitoring vital signs, and implementing measures to reduce further absorption, such as administering activated charcoal within one hour of ingestion, as directed by a healthcare professional. Continuous medical monitoring, particularly of the cardiovascular and CNS systems, is required until the patient is stable.

Therapeutic Uses of Bombard

What Bombard Treats: Main Uses and Benefits

The active substance is generally considered relevant for the management of external parasite infestations in production animals.

Therapeutic Applications and Benefits

This preparation is commonly used for managing existing infestations caused by a wide spectrum of external parasites, including ticks, lice, keds, and certain mites (e.g., mange). It may be part of symptomatic management for acute and serious conditions such as blowfly strike (maggot infestation), offering supportive relief and assisting with managing the parasite load associated with heavy physiological strain.

The agent is relevant for easing challenging symptoms associated with parasitic activity, such as intense pruritus (itching) and persistent skin irritation. The application of this agent contributes to improved comfort and coat health, which contributes to easing the overall symptom load and supports hosts during episodes of heightened discomfort.

This use is also applicable within the context of herd health risk mitigation where the preparation is applied to manage populations of disease-carrying vectors, such as biting flies and ticks. Managing these populations supports the important preventative benefit of assisting with reducing the exposure of hosts to pathogens.

“This agent is commonly used for supporting host comfort and assisting with managing the physiological strain caused by external parasites.”

Quick Fact: Relief for Dermatological Distress
Symptom Managed: Intense Pruritus (Itching) and Skin Irritation
Therapeutic Benefit: Contributes to improved comfort and helps maintain functional stability

Regulatory References

  1. Veterinary Medicines Directorate (VMD) product information

Eligibility and Restrictions for Use

Population Eligibility Rules

The eligibility for using the medicine containing Deltamethrin is defined by strict regulatory criteria based on the animal's authorized species, health status, and reproductive state. The product is officially authorized exclusively for use in Cattle and Sheep.


Contraindications and Exclusions

Use is formally contraindicated in several specific populations. This includes sick or convalescent animals and any animal with known hypersensitivity to Deltamethrin or its excipients. Administration is prohibited if the animal has major or extensive lesions of the skin. The medicine is also not authorised for ewes producing milk for human consumption. Furthermore, use in non-target species, such as dogs and cats, is strictly contraindicated due to toxicity.


Restricted and Conditional Use

For other specific groups, eligibility is restricted. While Lambs are included in the treatment scope, use during pregnancy and lactation requires a professional benefit/risk assessment because safety has not been established in all contexts. These rules define clear boundaries for permissible use as mandated by regulatory authorities.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section outlines the officially documented interaction patterns for the active substance Deltamethrin, as established in authoritative government regulatory documentation.

Interaction Classifications and Restrictions

Classification Regulatory Status
Co-administration with other Ectoparasiticides Formally Prohibited Combination
Interacting Compound Classes Organophosphorous compounds, other Pyrethroids
Interaction Outcome Enhanced toxicity and reduced metabolism rate

Co-administration with any other insecticide or acaricide is strictly prohibited in regulatory product documentation. This restriction is based on the official finding that certain organophosphorous compounds cause a reduced metabolism rate of the active substance. This metabolic interference is officially documented to enhance the toxicity of Deltamethrin, necessitating the formal prohibition on simultaneous use with other products intended to control external parasites. The interaction profile is structured around this primary constraint to avoid an unacceptable increase in drug exposure. No explicit mandatory timing separation rules are documented, as the restriction is absolute. Furthermore, regulatory labels do not document specific interactions with food, alcohol, or herbal products.

Mechanism of Action

Deltamethrin’s mechanism of action is rooted in its selective neurotoxicity within the arthropod nervous system. The molecule functions as a positive modulator of the Voltage-Gated Sodium Channels ( Na v) located in neuronal membranes. Its primary interaction is the inhibition of the channel's fast inactivation gate. This prevents the channel from undergoing normal rapid closure, causing a prolonged, sustained influx of positive sodium ions. The high lipophilicity of the molecule facilitates its rapid penetration of the parasite's cuticle, leading to systemic neurotoxicity. The sustained sodium influx causes widespread membrane hyperexcitability across the central and peripheral nervous systems, compromising the normal Axonal Signal Transmission Pathway. This uncontrollable, repetitive electrical firing progresses rapidly, culminating in spastic paralysis and functional system collapse. The mechanism's efficacy is biologically constrained by Target-Site Resistance ( kdr mutations), which reduce binding affinity, and Metabolic Resistance, where detoxification enzymes rapidly break down the molecule.

Dosage and Administration Information

How to Use Bombard: Official Administration Guidelines

The administration of the Deltamethrin-based preparation, often referred to as Bombard, is governed by protocols that define its topical application and dosing schedule. As an ectoparasiticide, its use is structured around a single-course treatment intended for intermittent use, repeated only when the presence of re-infestation is confirmed or after the protective period has elapsed.


Administration Scope

Instruction Detail
Route of administration Topical (Pour-on application).
Dosing schedule (Adults) Cattle: 10 mL per animal (100 mg Deltamethrin). Sheep: 5 mL per animal (50 mg Deltamethrin).
Frequency pattern Intermittent use, applied as a single course to provide control for several weeks.
Age-group administration Lambs under 10 kg bodyweight or one month of age are administered a reduced dose of 2.5 mL per animal.

Procedural Structure

The protocol mandates that the correct dose volume, determined by the animal's species and body weight, must first be measured. The entire dose is then applied as a single narrow strip along the mid-line of the back, extending from the shoulders to the base of the tail. The application site is critical for the medicine's proper action.

Contextual Use Rules

Specific procedural constraints are mandated for proper use. For instance, treatment for certain parasites in sheep is optimally conducted shortly after shearing. For the treatment of established blowfly strike, the product must be applied directly to the maggot-infected area after any necessary preparation, such as clipping stained wool. The medicine must not be mixed with any other insecticide or acaricide during application.

Recent Clinical Evidence

Research Evidence / Overview of Studies


Research Focus

Research investigated the effects of Bombard in subjects with specific joint tissue conditions. Clinical trials focused on patient-reported mobility and chronic joint pain. These studies were designed to assess changes in disease activity over defined treatment periods.


Combination Therapy Studies

Studies have explored the combination therapy in relation to symptom onset, contrasting its use with monotherapy. This research investigated the influence of Bombard on the frequency of flare-ups over a long period, typically encompassing 48 to 52 weeks of continuous treatment.


Specific Populations and Dosing

Studies have examined the use of Bombard in subjects with mild liver impairment to assess pharmacokinetics and tolerability within this specific group. The use of the drug in people with severe heart conditions has also been explored as part of broader safety evaluations.

Studies evaluated once-daily dosing schedules as part of establishing administration regimens. Preliminary data has been collected examining whether Bombard influences the need for rescue medication in subjects experiencing breakthrough symptoms.


Safety and Tolerability Data

Side effects were a focus of the reported data collection during clinical trials. Comparative studies on side effect profiles have been conducted to provide context on the tolerability of Bombard relative to other treatments investigated in the same therapeutic area.

Frequently Asked Questions (FAQ)

Common questions about Bombard (FAQ)


Q: How quickly does Bombard usually start to work?

A: Regulatory documents indicate that the active substance in Bombard has a rapid neurotoxic "knock-down" effect on target parasites. For ectoparasites such as ticks, official product information states that they are generally killed and fall off the host within 48 hours after exposure.


Q: Does Bombard stay in your system for a long time?

A: Official information from the product's regulatory data indicates that following dermal, or topical, application, the active substance is only slightly absorbed through the skin and is generally not absorbed systemically by the host. Any systemically absorbed amount is generally noted to be completely eliminated within a few days in laboratory animal studies, such as in rats.


Q: Is it normal to feel a bit tired when taking Bombard?

A: Tiredness or lethargy is not an officially listed adverse reaction in the authorized animal target species. However, safety documentation notes that signs of altered behavior, including lethargy (a state of tiredness), have been observed as very rare side effects in the authorized target species.


Q: Is Bombard known to cause weight changes?

A: Weight changes are not a listed adverse reaction in the official product information for the authorized species (Cattle and Sheep). Toxicological studies conducted in laboratory animals have observed a reduction in body weight gain following the administration of doses that exceed the therapeutic range.


Q: Is there a generic version of Bombard available?

A: The product containing Deltamethrin is often registered as a generic application under regulatory guidelines. Based on its regulatory classification as a generic application, multiple products containing the active substance may be available, subject to regional authorization.


Q: Is Bombard a medication that requires regular blood tests?

A: The official product information for the authorized animal species does not specify mandatory blood tests or clinical monitoring for regular use.


Q: What happens if I accidentally take more Bombard than prescribed?

A: Studies conducted on target animals have shown that an accidental overdose of up to five times the recommended dose does not typically induce serious adverse effects. Any mild, transient symptoms that may be observed have been noted to resolve, as documented in the product's regulatory safety reports.


Q: What is the purpose of the black box warning on Bombard's label (if applicable)?

A: The regulatory labels for this Deltamethrin product do not carry a Black Box Warning (a term used by the US FDA for human drugs). The most serious official warning is the formal contraindication against use in non-target species, such as cats and dogs, due to the risk of fatal neurological signs.


Q: What kind of specialist usually prescribes Bombard?

A: Due to the product's classification and legal status, its sale and use are restricted. Official regulatory documents indicate that the product is generally sold only to or through a Veterinarian.


Q: Are there any restrictions on activity while taking Bombard?

A: While there are no specific restrictions on the animal's physical activity, official product information indicates that the treatment should be applied when the hair is not wet and when rain is not anticipated within two hours of application. These application rules are set forth to maintain the product’s intended function.


Q: What are the most common things people feel when they first start taking Bombard?

A: Adverse reactions listed in the official safety documents for the authorized species are classified as Very Rare, meaning they occur in less than 1 in 10,000 animals treated. The documented local effects in the authorized target species within 48 hours following treatment are signs such as pruritus (itching) and squamosis (flaky, scaly skin).


Q: How long can a person stay on Bombard?

A: According to regulatory documents, this product is intended for intermittent use, applied as a single course to control parasites for several weeks. Research into the drug's properties has investigated continuous treatment periods of up to 48 to 52 weeks in certain study subjects.


Q: Has Bombard been studied in children?

A: The product is officially authorized for use only in Cattle and Sheep. Its regulatory status specifies it is contraindicated for use in non-target species. A reduced dose is formally authorized for use in Lambs under 10 kg bodyweight.


Q: Are there different strengths or doses of Bombard available?

A: The preparation is available in dosage forms such as a solution, suspension, or pour-on formulation. While the formulation's strength is fixed, different dose volumes are prescribed based on the species being treated, such as for cattle, sheep, and lambs.


Q: Can Bombard be taken by people with heart conditions?

A: The official regulatory label specifies the authorized species as Cattle and Sheep. Use in non-target species is not authorized. However, studies documented in the research overview have explored the use of the drug in subjects with severe heart conditions as part of broader safety evaluations.


Q: Can I take Bombard if I am pregnant or planning to be?

A: The product is contraindicated for use in non-target species. Official safety documentation indicates that because safety has not been established in all contexts during pregnancy and lactation (in target animals), a professional evaluation is required before use.


Q: Why do some people stop taking Bombard?

A: The product information lists several reasons for use cessation. These include the onset of Very Rare neurological manifestations such as tremors, agitation, or prostration. The product must also be discontinued if the animal becomes sick or convalescent, as this is a formal contraindication for its use.


Q: Are there any genetic factors that affect how Bombard works?

A: Studies on the drug’s mechanism of action indicate that its efficacy can be biologically constrained by Target-Site Resistance and Metabolic Resistance. These are genetic factors in the parasite that can either reduce the drug’s binding affinity or cause the rapid breakdown of the molecule.


Q: What if I'm allergic to other medications? Can I still take Bombard?

A: Use is formally contraindicated if the target animal has a known hypersensitivity to the active substance, Deltamethrin, or its excipients. The regulatory information does not provide guidance regarding allergies to other medication classes.


Q: What is the risk of an allergic reaction to Bombard?

A: Hypersensitivity to Deltamethrin is listed as a contraindication for use. Adverse skin reactions like pruritus (itching) are documented in the Very Rare frequency category, meaning they are observed in less than 1 in 10,000 animals treated.


Q: Are there different formulations of Bombard (e.g., immediate-release vs. extended-release)?

A: The preparation is officially available in dosage forms such as a solution, suspension, or pour-on formulation. These specialized formulations are designed for topical administration to ensure maximum distribution and adhesion to the coat, supporting its function as a contact insecticide with prolonged residual activity.

How should Bombard be stored and disposed of?

How to Store and Dispose of Bombard (Deltamethrin)

The storage and disposal of this product must adhere to specific regulatory requirements to maintain stability and ensure environmental safety.


Storage Requirements

The product must be stored below 25 C and protected from frost. It is mandatory to keep the container tightly closed when not in use. Due to the nature of the formulation, storage areas must be kept away from heat, sparks, open flames, and all other ignition sources. For safety, the product must always be stored out of the sight and reach of children and kept secured.

Disposal Instructions

Official regulatory documents require that the disposal of unused veterinary medicinal product or derived waste materials be performed according to local, regional, and national regulations. It is strictly prohibited to release the product into the environment, including water courses, sewers, or surface water, due to the high toxicity of deltamethrin to aquatic organisms.

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

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