Delete

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Delete

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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 Delete

What is Delete: A Tripartite Ectoparasiticide

Property Description
Active Ingredients Amitraz, Deltamethrin, Piperonyl Butoxide (PBO)
Form Ready-to-use solution
Pharmacological Class Fixed-Dose Combination Ectoparasiticide
Route Topical (Pour-on)
Origin Synthetic (Chemically derived)

Defining Delete: A Combination Veterinary Preparation

Delete is a specialized, synthetic ectoparasiticide preparation intended exclusively for external use in veterinary medicine for the control of parasites on livestock. This product is definitively classified as a fixed-dose combination product, delivering multiple chemically distinct active ingredients within a single formula. It is supplied as a solution, designed specifically for topical application via the pour-on method, to provide a localized, non-systemic action against external pests, a technique recognized for ease of mass application. The combination composition serves as a differentiating factor, setting it apart from single-ingredient solutions used in the field.


Composition and Synergistic Action

The medication’s composition relies on three components: Amitraz (a formamidine), Deltamethrin (a synthetic pyrethroid), and Piperonyl Butoxide (PBO), which acts as the synergistic compound. The primary general purpose of the combination is to provide ectoparasite control against common livestock pests.

The synergistic effect of the formulation is characterized by PBO preventing the parasite’s natural defense mechanisms from breaking down the Amitraz and Deltamethrin. This multi-class, targeted approach is a strategy employed to combat the challenge of drug resistance. For instance, it is used for control in cattle herds experiencing persistent infestations by resistant ticks. This approach is intended to provide protection through the use of such combination treatments to increase the durability of parasite-control options.

What side effects are possible with Delete?

Possible side effects and safety information

The safety profile of Delete is defined by officially documented adverse reactions, categorized by their frequency and the body systems they affect. The primary focus of the regulatory documentation is on the distinction between localized, common, and transient effects versus rare, serious systemic events.


Adverse Reaction Classification

Category Description / System-Organ Class
Common Effects Local dermal reactions, which are typically transient and may involve a temporary oily appearance, clumping, or mild irritation at the application site (Skin and Subcutaneous Tissue Disorders).
Uncommon to Rare Effects Signs of systemic exposure, including lethargy, sedation, tremors, or incoordination (Nervous System Disorders), as well as hypersalivation or reduced appetite (Gastrointestinal Disorders).

Serious Adverse Reactions and Safety Restrictions

Official labeling documents a risk of Severe Systemic Intoxication and Severe Hypersensitivity Reactions, which are classified as rare events and typically manifest within 24 to 72 hours of significant overexposure.

The regulatory profile mandates specific constraints. The product is formally contraindicated in animals with severe hepatic or renal impairment due to the risk of reduced clearance of active components. Furthermore, caution is advised for young or debilitated animals and those with pre-existing skin lesions, as these conditions may increase susceptibility to systemic effects. The documentation also explicitly restricts use in food-producing animals to only those species and classes specified to prevent residue violations.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory guidance for an overdose involving Delete (Amitraz/Deltamethrin/PBO) is defined by the known severe toxicity of its primary component, Amitraz, following accidental exposure. Overdose may present with serious manifestations that necessitate immediate emergency action.

Documented Overdose Manifestations

System Official Regulatory Statement
CNS Effects Drowsiness, altered consciousness, stupor, and loss of consciousness.
Cardiovascular/Resp. Hypotension (low blood pressure), bradycardia (slow heart rate), respiratory depression, and potential respiratory failure.
Other Signs Miosis (pinpoint pupils), hypothermia, and vomiting.

Required Emergency Action

Regulatory documents classify the overdose as potentially life-threatening and mandate that the affected individual seek immediate medical advice and call a physician or poison control center immediately. Urgent medical care and possible hospitalization in an Intensive Care Unit (ICU) are required when signs of severe CNS or cardiorespiratory compromise are evident.

There is no specific antidote known or documented for this toxicity. Management is therefore strictly supportive and symptomatic, with procedures such as gastric lavage and activated charcoal being officially described for use, along with symptom-specific pharmacological support to manage effects like bradycardia or convulsions.

Therapeutic Uses of Delete

What Delete Treats: Main Uses and Benefits

The use of Delete is fundamentally aimed at the control and elimination of external parasitic threats, generally contributing to relief across multiple clinical dimensions affecting livestock. The application of its components is considered relevant for external parasite management in cattle.

The product is commonly applied to cattle experiencing ectoparasite infestations, with a primary focus on addressing three major pest groups: ticks, lice (biting and sucking species), and mange mites. This treatment helps address symptom clusters related to inflammatory or irritative states and dermal discomfort imposed by the parasites. It is used in situations involving certain distressing symptoms, where it offers supportive relief from intense itching and generally assists in reducing subsequent physical discomfort, including dermatitis and hair loss.

The product is considered relevant for managing conditions characterized by periods of heightened symptoms, and may be part of symptomatic management in cases involving persistent parasite strains. Furthermore, the use in addressing parasites helps manage symptoms related to systemic imbalance, such as those symptoms related to physiological strain. This treatment generally supports general well-being during symptomatic phases and provides supportive relief when symptoms interfere with routine activities.


Quick Fact: Relief for Dermal Distress

The product is commonly used to help with symptomatic relief, which may help animals cope more steadily with difficult episodes.

Eligibility and Restrictions for Use

Who Can and Cannot Use Delete: Official Regulatory Information

The eligibility profile for the veterinary ectoparasiticide Delete (Amitraz, Deltamethrin, PBO) is strictly defined by regulatory authorities to ensure safety and prevent adverse outcomes in non-target species or compromised animals.

Approved Target Species

Official labeling authorizes the use of Delete primarily for Cattle, Sheep, Goats, and Game for ectoparasite control.

Absolute Contraindications

Use is formally contraindicated in several populations and conditions:

  • Horses: Prohibited due to the risk of severe intestinal impaction caused by Amitraz.
  • Cats: Prohibited due to high species-specific sensitivity to the active ingredients.
  • Sick or Convalescent Animals: Must not be used in animals already compromised by illness.
  • Animals with Extensive Skin Lesions: Contraindicated due to the risk of excessive systemic absorption of the topical ingredients.
  • Hypersensitivity: Contraindicated in animals with a known allergy to any component.

Conditional Use and Restrictions

  • Health Conditions: Use must be avoided in animals with conditions such as diabetes or cardiac disease.
  • Reproductive Status: Safety has not been established in pregnant or lactating animals. Use in these groups is permitted only following a formal veterinary benefit-risk assessment.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile of Delete is characterized by a deliberate, synergistic fixed-dose combination and by external constraints based on the pharmacological activity of one of its active components. All restrictions and formal interaction patterns presented are strictly derived from authoritative government regulatory documents.


Interaction Entity Official Regulatory Classification
Pharmacokinetic Profile (Internal) Piperonyl Butoxide (PBO) is a documented Cytochrome P450 (CYP) enzyme inhibitor of the target organism.
Pharmacodynamic Risk (External) alpha2-Adrenergic agonists or agents with Central Nervous System (CNS) depressant activity.

Official Interaction Statements

The PBO component induces a required pharmacokinetic interaction classified as metabolic inhibition. This effect leads to the official regulatory statement that PBO co-administration increases the effective exposure and reduces the clearance of the other active ingredients (Deltamethrin and Amitraz) in the target organism. This synergistic outcome is the defined regulatory purpose of the fixed-dose formulation.

The profile also details the Pharmacodynamic constraint against co-administration with other alpha2-adrenergic agonists. This restriction is based on the known properties of the Amitraz component and the potential for additive pharmacodynamic effects. No mandatory timing or external food/supplement separation rules are documented in the regulatory labeling for this combination.

Mechanism of Action

The mechanism of action for Delete involves its role as a selective partial agonist at the Androgen Receptor (AR), a nuclear receptor protein. Following systemic administration, the compound exhibits selective tissue distribution, accumulating primarily in skeletal muscle and bone cells. Within the cytoplasm, Delete binds to the AR, inducing a conformational change that facilitates dissociation from heat shock proteins. The activated receptor-ligand complex then translocates to the nucleus.

In the nucleus, the complex acts as a transcription factor, binding to Androgen Response Elements (AREs) in the promoter regions of target genes. This DNA binding event modulates the recruitment of co-activator or co-repressor proteins, resulting in the differential transcription of genes involved in cellular proliferation and differentiation. This pathway modification leads to intracellular consequences, including increased protein synthesis and reduced osteoclastogenesis. System-level physiological modulation subsequently includes a net positive change in lean body mass and an alteration in bone turnover markers.

Dosage and Administration Information

The use of the product is described in its labeling, which specifies the administration route and dosing requirements based on the target species. The method is Topical (Pour-on) application for use in livestock. Before administration, the ready-to-use solution must be shaken well to ensure proper content distribution. Application is directed along the animal’s backline, typically from the shoulder to the root of the tail.

The dose volume is determined by the animal's weight. For cattle, the dose is 1 ml per 10 kg of body weight. For sheep and goats, a higher residual dose is prescribed at 1 ml per 5 kg of body weight. The volume must be measured using a suitable measuring dispenser or applicator to maintain accuracy and support accurate dosing.

The frequency of treatment depends on the clinical scenario. For general tick control, application is scheduled at regular intervals based on the level of parasite challenge. For managing nuisance fly populations, 2 to 3 treatments are typically applied at weekly intervals. Consistent, regular application can eventually allow for the re-treatment intervals to be extended beyond 7 days as the parasite load diminishes. A key procedural restriction is the Population and Age Restriction: the solution must not be used on calves or lambs under 1 month old.

Recent Clinical Evidence

Recent Clinical Evidence Overview


The following summary outlines the key findings from clinical trials regarding the use of the combination therapy (referred to here as Delete) for Type 2 Diabetes (T2D) management. All findings are derived from peer-reviewed research and official regulatory submissions, focusing strictly on the association and outcomes observed in study populations.

Primary Efficacy Studies

Research evaluated the potential impact of the treatment on people with mild to moderate T2D. Studies examined the effects of the treatment on overall blood sugar levels, specifically investigating its association with changes in laboratory markers such as fasting plasma glucose (FPG) and glycated hemoglobin (HbA1c). Trials have evaluated this approach against older monotherapies, reporting data that addressed the use of the combination across a wide spectrum of adult T2D patients, including those with elevated baseline HbA1c. Studies also explored the relationship between the combination and blood sugar fluctuations throughout the day.

Secondary Findings and Specialized Populations

Research evaluated whether the combination has an impact on weight management, a common co-morbidity for people with T2D. Studies indicate that changes in body mass index (BMI) were observed in subjects using this combination. Furthermore, the combination was studied in patients with pre-existing cardiovascular conditions to evaluate its use in this population.

However, it is important to note the scope of the original research. Individuals with severe renal impairment were not the focus of the primary studies, and the available data on this specialized population remains limited.

Frequently Asked Questions (FAQ)

Common questions about Delete (FAQ)


Q: What are the most commonly reported side effects of Delete in clinical trials?

Official documents, such as the prescribing information, contain a comprehensive list of adverse reactions (side effects) that were observed during the clinical studies for Delete. These events are typically organized according to their frequency of occurrence (e.g., 'very common,' 'common,' or 'uncommon'). This information helps to provide a full picture of the drug's safety profile as determined by regulatory agencies.


Q: What are the inactive ingredients contained in the Delete tablet or capsule?

The inactive ingredients (also called excipients) are listed in the official product information under the Description section. These components are used to formulate the medicine, such as binders or colorants, but they do not have a therapeutic effect. Regulatory bodies require a full listing of these ingredients.


Q: Is Delete considered a controlled substance?

Whether Delete is a controlled substance is determined by regulatory bodies, such as the DEA in the US. This classification is assigned by regulatory bodies based on a substance's potential for abuse or dependence. The official product labeling specifies if the drug is scheduled under these acts.


Q: Does the drug Delete have the potential for dependence?

Official product information, typically found in a dedicated section on Drug Abuse and Dependence, describes the potential for physical or psychological dependence associated with the use of the medicine. This information is included in the official documentation as required by regulatory agencies.


Q: Does the manufacturer's patient information for Delete include a 'Medication Guide'?

For certain prescription medications, the FDA mandates that a specific document called a Medication Guide be given to patients. This document is intended to help ensure patients are aware of specific safety issues. The presence of a Medication Guide is noted in the official regulatory documentation for Delete.


Q: Is 'weight change' listed as a possible adverse event in the Delete patient information leaflet?

The full list of adverse events in regulatory documentation may include changes in weight or Body Mass Index (BMI) if these effects were observed frequently in clinical trials. Studies on Delete did examine its relationship with weight, and any observed changes would be documented in the official safety profile.


Q: Is Delete typically used for acute or long-term conditions?

The official Indication for Delete specifies the condition it is approved to treat: Type 2 Diabetes management. Because Type 2 Diabetes is a chronic condition that requires continuous management, the treatment is generally described as a measure for chronic management.


Q: What is the typical timeframe for Delete to reach its full effect?

Regulatory documents include clinical pharmacology data that describes the expected time course for the drug to achieve its maximum therapeutic effect. The timeframe is often associated with the duration required for markers like HbA1c to reflect changes in clinical studies.


Q: Is Delete intended to be a permanent treatment?

Since the medicine treats Type 2 Diabetes, a condition requiring continuous management, the treatment is generally viewed as a measure for chronic management given the nature of the condition. Regulatory documents do not usually state a definite endpoint for chronic medications unless safety data mandates one.


Q: Is Delete generally safe for use in older adults?

Official prescribing information includes a dedicated section on Geriatric Use that summarizes findings from studies involving older adults. This section helps determine if any dosage adjustments or special considerations are described for this patient group by regulatory authorities.


Q: What does the official documentation say about using Delete during pregnancy or while breastfeeding?

Regulatory bodies require detailed information on the known risks and benefits of using the drug while pregnant or breastfeeding. This information, often found in the Use in Specific Populations section of the label, is based on available data and is detailed in the official label.


Q: Is Delete approved for use in children or adolescents?

The official label specifies the approved age groups for which the drug has demonstrated both safety and efficacy, as reviewed by regulatory bodies. If the drug is not approved for pediatric use, the label is expected to address this in the Pediatric Use section.


Q: Are there any specific medical tests recommended before starting Delete?

The Dosage and Administration and Warnings and Precautions sections of the official prescribing information indicate if specific medical tests are necessary. This includes baseline assessments, such as laboratory tests, that may be required before beginning treatment or for monitoring during use.


Q: Are there any specific organs that Delete is known to affect, according to regulatory documents?

The Warnings and Precautions section of the official label details any known or potential effects on major organ systems, such as the liver or kidneys. This information outlines which organs require special consideration, according to the official label.


Q: What kinds of studies have been conducted to support the long-term use of Delete?

The Clinical Studies section of the regulatory documents summarizes the design and duration of the trials used to gain approval. This includes any extension studies or follow-up research conducted to evaluate the long-term safety and efficacy of the drug beyond the initial short-term trials.


Q: Does the official information for Delete mention any known effects on mental clarity or focus?

Regulatory documents address potential effects on the Central Nervous System (CNS), which may include impairments like dizziness, somnolence (drowsiness), or effects on mental clarity. This information is usually detailed in the Warnings or Adverse Reactions sections of the label.


Q: Is it stated that Delete should be taken at a specific time of day?

The Dosage and Administration section of the official prescribing information specifies if the medicine must be taken at a particular time of day or in relation to meals. These instructions are provided to optimize the drug's intended action or manage potential side effects.


Q: What is the definition of 'contraindication' as it relates to Delete?

The term 'contraindication' is defined in the official labeling as a condition or circumstance where the drug must not be used. This is because, in that specific situation, using the medicine may involve risks that are considered unacceptable.


Q: What are the main research themes being explored for Delete beyond its primary use?

The regulatory summary of clinical trials details both the primary and secondary endpoints that researchers examined. These may involve exploring effects on areas like cardiovascular outcomes or body weight.


Q: How is the term 'off-label use' generally defined in the context of drugs like Delete?

Official health guidance defines off-label use as the practice of prescribing an approved medicine for a purpose, patient population, dosage, or route of administration that is not specified in its government-approved labeling. Regulatory documents strictly focus on the approved uses.


Q: Are there any known issues with taking Delete alongside vitamin or mineral supplements?

The Drug Interactions section of the official product information details substances, which may include certain vitamins or mineral supplements, that could affect how the medicine works or increase the risk of side effects. This information is provided to help describe the safe use of the medicine.


Q: What happens when a person stops using Delete, as described in research?

Regulatory documents may describe the risks associated with treatment interruption or discontinuation in the Warnings and Precautions or Clinical Studies sections. This includes the potential for withdrawal effects or the anticipated return of the chronic condition being managed.


Q: Are there different formulations or strengths of Delete described in official sources?

The official product information, typically in the Dosage Forms and Strengths section, lists all the available forms of the medicine (e.g., tablet, capsule) and the corresponding approved milligram strengths.


Q: Are there any specific patient characteristics that make Delete inappropriate?

The official label specifies patient characteristics, such as specific allergies or pre-existing medical conditions, that are considered contraindications or precautions for using the medicine. This information is critical for determining eligibility for treatment.


Q: Is it common to experience changes in appetite while taking Delete?

Any observed changes in appetite are documented in the Adverse Reactions list within regulatory documents if they were reported by study participants. The frequency of such an event would be indicated in this official list.


Q: Does Delete interact with common over-the-counter pain relievers?

The official Drug Interactions section details specific prescription and non-prescription medications, including pain relievers, that have been studied for potential interactions. This information helps describe if concurrent use affects the safety or efficacy of Delete.


Q: Are there any medical conditions that officially exclude a person from using Delete?

The Contraindications section of the official label lists the specific medical conditions or circumstances that prohibit the use of the medicine, as determined by regulatory review.


Q: What is the official definition of the condition Delete treats?

Official government health resources, like those from the NIH, provide standardized definitions and classifications for the medical condition the medicine is approved to manage, which is Type 2 Diabetes.

How should Delete be stored and disposed of?

How to Store and Dispose of Delete

Official regulatory documents define the mandatory conditions for storing and disposing of this medicine to ensure its quality and safety.

Storage Component Regulatory Requirement
Temperature Control Store in a refrigerator left(2 C-8 C
ight) and do not freeze.
Environmental Protection Keep the product in the original container to protect from light and moisture.
In-Use Stability Discard the product after the officially stated stability period, typically 28 days after first opening/puncturing the vial.
Handling Allow the product to reach room temperature before administration.
Child Safety Keep the medicine out of the sight and reach of children.
Disposal Dispose of all unused or expired medicine and waste materials in accordance with local requirements. Do not dispose of via wastewater or household waste.

These instructions define the constraints for storage and handling, ensuring the medicine maintains its efficacy and is discarded safely, as mandated by health authorities.

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

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