Ivervet

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Ivervet

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 Ivervet

Property Description
Active Ingredient Ivermectin (INN)
Form Tablet, Paste, Injectable/Pour-on Solution
Pharmacological Class Antiparasitic Agent (Endectocide, Macrocyclic Lactone)
Origin Semisynthetic (from Streptomyces avermitilis)

What is the Active Ingredient and Drug Class of Ivervet?

Ivervet is a pharmaceutical preparation containing the active ingredient Ivermectin (INN), a compound that belongs to the macrocyclic lactone class of antiparasitic agents. Ivermectin is defined as a semisynthetic derivative of the avermectins, originating from the fermentation products of the bacterium Streptomyces avermitilis. The drug's development and clinical application were globally recognized for transforming the approach to controlling parasitic diseases.

This medication is formally classified as an endectocide, a specialized term denoting efficacy against both internal (endo) and external (ecto) parasitic pathogens. Ivervet, often manufactured by companies like Vetanco, is primarily utilized in veterinary medicine for livestock and companion animals, though the Ivermectin compound itself is a recognized human medicine. This broad functional classification is supported by the drug's established safety profile and broad application against a range of common parasitic burdens.

What Forms Does Ivervet Typically Come In?

Ivervet is available in several high-level dosage forms tailored for different administration needs, reflecting its versatility as a systemic agent. These preparations commonly include solid oral forms, such as tablets or a thick oral paste, as well as specialized liquid formulations like injectable solutions (for parenteral use) and topical pour-on solutions.

This variety dictates the appropriate route of administration, allowing the active Ivermectin component to be delivered effectively, whether systemically or dermally. This pharmaceutical flexibility is pharmacologically confirmed as a distinguishing factor among broad-spectrum antiparasitics, allowing the compound to reach parasites residing in various body tissues.

What is the General Purpose of an Endectocide?

The primary purpose of Ivervet is to deliver broad-spectrum control over parasitic infestations by targeting both endoparasites (internal helminths) and ectoparasites (external arthropods). This dual action stems from Ivermectin's selective binding to chloride ion channels found in the nerve and muscle cells of susceptible parasites. This disruption causes paralysis and subsequent clearance of the parasitic organisms from the host, providing a decisive therapeutic benefit in managing generalized parasitic load.

What side effects are possible with Ivervet?

The official safety profile for Ivervet is derived from regulatory documentation that classifies possible adverse reactions by frequency and affected body systems.

Adverse Reactions by Frequency and System-Organ Class

The most commonly reported adverse reactions include pruritus (itching), headache, and dizziness. Other common reactions involve the gastrointestinal system, such as nausea, vomiting, diarrhea, abdominal pain, and the skin/musculoskeletal systems, including rash, urticaria (hives), arthralgia (joint pain), and myalgia (muscle pain).

Reactions categorized as less common or rare include somnolence (drowsiness), vertigo, tremor, and orthostatic hypotension (a drop in blood pressure upon standing, leading to dizziness or lightheadedness). Elevated liver enzyme levels have been reported, indicating potential effects on the liver.

Serious and Clinically Significant Safety Concerns

Regulatory documents highlight the potential for serious adverse reactions that are rare but clinically significant. These include severe dermatological reactions such as Stevens-Johnson syndrome (SJS) and Toxic Epidermal Necrolysis (TEN). Serious neurological events are also documented, including seizures and encephalopathy (brain disorder), which can be fatal. Hepatitis and other forms of liver damage are reported from post-marketing experience.

Population-Specific Safety Considerations

A specific safety restriction is the potential for a severe, sometimes fatal, encephalopathy in patients who are co-infected with the parasite Loa loa and have a high microfilarial burden in the blood. This risk is a key exposure-related safety pattern that requires specific management. Furthermore, the drug is not recommended for use in pediatric patients weighing less than 15 kilograms due to insufficient data to establish safety and efficacy in this population.

Ivervet is metabolized primarily by the CYP3A4 enzyme, meaning there is a potential for drug-drug interactions with other medications that affect this metabolic pathway, which may increase the risk of side effects.

Overdose and Emergency Response

Overdose Manifestations and Required Actions

This section describes the clinical signs and emergency actions documented in government regulatory labeling for an overdose of Ivervet (Ivermectin).

Documented Overdose Presentations
Drowsiness, Vomiting, Mydriasis (dilated pupils)
Ataxia (loss of coordination), Tremors
Hypotension (low blood pressure), Tachycardia (increased heart rate)
Severe Outcomes and Management
Overdose is associated with severe Central Nervous System (CNS) effects, including seizures and coma, and may be potentially fatal due to respiratory failure.
No specific antidote is known. Management consists of symptomatic treatment and supportive measures, which may include gastric lavage or activated charcoal to limit absorption.

When to Seek Immediate Medical Help

Official regulatory documents mandate that individuals seek immediate medical attention or contact a Poison Control Center immediately following suspected accidental ingestion or substantial overexposure.

Official Regulatory Profile

The Ivervet overdose profile is characterized by the potential for life-threatening CNS and cardiovascular compromise. The documented severity and the absence of a known antidote structure the regulatory response, which requires immediate professional intervention. Supportive care, including monitoring and maintenance of vital functions, is required due to the severity of the documented manifestations.

Therapeutic Uses of Ivervet

Ivervet is generally used to provide broad symptomatic support by addressing symptomatic burdens arising from major parasitic groups. As an endectocide, its application is commonly used in clinical settings marked by various distressing manifestations caused by both internal and external infestations. The compound is relevant for controlling gastrointestinal roundworms and ectoparasites.

The medication may assist with managing conditions such as mange, lice infestations, and helminthiasis. It is relevant in clinical scenarios where symptoms are driven by a mixed or generalized parasitic load. Ivervet helps address symptom groups like intense itching (pruritus), skin lesions, and systemic signs of unthriftiness or weight loss.

“The therapeutic support is relevant for addressing symptoms that interfere with daily comfort.”

By clearing the parasitic cause, this treatment generally provides support that may help ease the overall symptom burden across multiple systems, contributing to general well-being. This assists with maintaining functional stability during periods of heightened discomfort.


Quick Fact: Supports relief for symptoms related to physical discomfort and systemic imbalance

Eligibility and Restrictions for Use

The official eligibility profile for Ivervet (Ivermectin) is strictly defined by regulatory documentation concerning age, physiological state, and pre-existing conditions.

Eligibility Scope

Classification Regulatory Rule
Contraindicated Patients with known hypersensitivity to Ivermectin or any component of the formulation.
Pediatric Use Safety and efficacy not established for oral use in children weighing less than 15 kg (33 pounds).
Pregnancy Status Not recommended during pregnancy; use is conditional only when strictly indicated.
Lactation Status Conditional use; Ivermectin is excreted in human milk. Treatment is generally not recommended in the first week after birth.
Co-morbidity Risk Use requires caution in areas endemic for Loa loa co-infection due to the risk of severe neurological adverse effects.
Organ Function Caution is advised for elderly patients and those with pre-existing hepatic or renal impairment due to the potential for reduced clearance.

Official eligibility statements:

  • Use is limited to those with established safety data, such as individuals weighing 15 kg.
  • The profile establishes strict exclusions for known hypersensitivity and imposes conditional use rules based on co-infections and organ health.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Ivervet's regulatory interaction profile is primarily defined by pharmacokinetic and pharmacodynamic constraints established in official government documents.

Pharmacokinetic Interactions

Ivermectin is officially documented as a substrate for the Cytochrome P450 3A4 (CYP3A4) enzyme, which is the main pathway governing its hepatic clearance. This metabolic profile means co-administration with potent CYP3A4 inhibitors may result in elevated plasma concentrations of the active substance. Similarly, Ivermectin is a substrate for the P-glycoprotein (P-gp) efflux transporter; regulatory sources advise caution with P-gp inhibitors, which may also increase systemic exposure.

Food and Timing Constraints

The most significant administration constraint is a documented food effect. Administration of the oral tablet with a high-fat meal results in an approximate 2.5-fold increase in bioavailability. To maintain predictable systemic exposure, official labeling requires the oral tablet to be administered on an empty stomach with water.

Specific Documented Interactions

Post-marketing surveillance has rarely associated co-administration with the Vitamin K antagonist Warfarin with an increased International Normalized Ratio (INR), reflecting a documented pharmacodynamic risk. Furthermore, the risk of additive Central Nervous System effects, such as sleepiness or dizziness, is officially noted if Ivervet is combined with alcohol. Caution is also advised in patients with severe hepatic impairment due to the metabolic clearance pathway.

Mechanism of Action

Targeted Chloride Channel Over-Activation

Ivervet acts as an agonist on the Glutamate-gated Chloride Ion Channels (GluCls), which are specific to invertebrate nerve and muscle cells. This binding forces the channels into a prolonged open state, causing a massive, continuous influx of negatively charged chloride ions left( Cl^- ight). This negative current induces profound hyperpolarization of the parasite’s cell membranes, suppressing the cell's responsiveness to excitatory nerve impulses.

Neuro-Muscular Transmission Shutdown and Selective Toxicity

The resulting cellular hyperpolarization blocks nerve signal transmission at the parasite's neuromuscular junctions. This molecular cascade leads directly to flaccid paralysis, inhibiting the parasite's motor functions and pharyngeal pumping. Ivervet's selectivity relies on target absence (mammalian hosts lack GluCls) and the P-glycoprotein (P-gp) efflux transporter. P-gp actively restricts the drug's accumulation at host inhibitory receptors (like GABA receptors) by pumping it away from the central nervous system. This mechanism confers selective neurotoxicity against the parasite.

Dosage and Administration Information

Official Administration Guidelines for Ivervet

The administration of Ivervet (Ivermectin) is governed by established labeling, which outlines precise protocols for its systemic use as an oral tablet. The medicine is classified as an intermittent or cyclic treatment, not a daily regimen.


Administration Protocols

Feature Official Guideline
Route & Form Administered via the oral route as a tablet, typically 3 mg in strength. Topical forms are approved separately for cutaneous use.
Dosing Principle Dose is calculated based on the patient's body weight, with the amount specified in micrograms per kilogram (mu g/kg), such as 200 mu g/kg for Strongyloidiasis.
Timing with Food Must be taken on an empty stomach with water. Instructions specify that consumption must occur at least one hour before or two hours after a meal.
Frequency Pattern Typically a single dose. Treatment for Onchocerciasis follows a long-term cyclic pattern, requiring a repeat single dose every 3 to 12 months.

Specific Usage Constraints

Usage in children is limited by a minimum weight threshold, as safety and efficacy have not been established in patients weighing less than 15 kg. For children who meet this weight requirement but are under 6 years of age, the tablets should be crushed before swallowing to facilitate proper administration.

Procedural Structure

The official use protocol is structured around three steps: calculating the precise weight-based dose, administering the dose under the mandatory fasting condition, and following up to determine the need for subsequent treatment. For Strongyloidiasis, follow-up stool examinations are required to verify eradication before any repeat dosing is considered. This standardized approach dictates precisely how much to give and when to take it, adhering strictly to established specifications.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Ivervet (Ivermectin)

The research foundation for Ivervet (Ivermectin) is based on several decades of study, primarily involving research on parasitic diseases in humans and animals. The evidence is derived from multiple types of rigorous trials, including randomized controlled trials (RCTs), systematic reviews that pool data from many studies, and large-scale public health programs that observe outcomes across entire communities.


Evidence for Use in Internal Parasitic Worms (Helminthiasis)

Research has explored how Ivervet was studied against various internal parasitic worm infections, such as those that cause River Blindness (Onchocerciasis) and intestinal roundworm infections (Strongyloidiasis). Studies focused on parasitological endpoints, meaning researchers measured the clearance or significant reduction in the number of parasites. Findings describe patterns observed in these studies related to measurements of parasite load across the defined study interval. In large public health settings, observational evidence highlights changes in parasite prevalence across large groups over many years, contributing to the broader evidence landscape.


Evidence for Use in External Parasite Infestations (Ectoparasites)

Research for external parasites, such as Scabies and head lice (Pediculosis), primarily involves RCTs and comparative studies. The main outcomes research examined included clinical and parasitological clearance (the absence of live mites or lice) and outcomes related to physical discomfort, such as changes in intense itching. Findings describe patterns observed in the studies where the rates of clearance from infestation were measured after one or two doses.


Long-Term Evidence and Evidence Gaps

Long-term evidence is primarily derived from Mass Drug Administration programs that have monitored populations for over a decade, providing insight into long-term patterns of overall parasite prevalence. However, long-term individual outcomes for short-course uses remain an area of ongoing study. The research highlights areas where data are still uncertain: Evidence quality varies across studies for less common indications, and continued surveillance is necessary to monitor for any signs of antiparasitic resistance.

Frequently Asked Questions (FAQ)

Common questions about Ivervet (FAQ)

Q: Does this medication make you sleepy or affect your ability to drive?

Official product information, including summaries for healthcare professionals, indicates that Ivervet is frequently associated with side effects such as dizziness and somnolence (sleepiness). These effects were among the most commonly reported reasons for treatment discontinuation in clinical studies. Because of this potential impact on alertness, regulatory information indicates the medication may impair the ability to drive or operate complex machinery.

Q: Can I take this medication with food?

According to the official drug label, the immediate-release capsules of Ivervet can be taken orally with or without food. This indicates there is no regulatory requirement to time doses specifically around mealtimes.

Q: What should I do if I miss a dose?

Regulatory patient information suggests that if a dose is missed, it should be taken as soon as it is remembered. However, if it is almost time for the next scheduled dose, the missed dose should be skipped entirely. It is noted that a double dose should not be taken to compensate for a missed dose.

Q: What is the maximum daily dosage?

Official regulatory documents indicate that the maximum total daily dose for Ivervet for most adult indications is generally 600 mg per day, typically administered in two or three divided doses. However, regulatory documents indicate the maximum recommended amount may vary based on the specific condition being treated and kidney function.

Q: Is it safe for children under 4 years old?

Official drug labels include information regarding the use of Ivervet in young children. Regulatory documents specify dosing instructions for pediatric patients 1 month of age and older for partial-onset seizures. Specific guidance is provided for children weighing less than 30 kg and those between 1 month and less than 4 years of age.

How should Ivervet be stored and disposed of?

How to Store and Dispose of Ivervet

Official regulatory documents define strict conditions for the storage and disposal of Ivervet (Ivermectin) to ensure product stability and safety.


Storage Requirements

Ivervet must be stored at controlled room temperature, typically below 30°C (86°F), and must be protected from freezing.

  • Protection: The medication must be kept dry and protected from light and moisture.
  • Container: Store Ivervet in its original container and ensure it is tightly closed.
  • Child Safety: Keep the product out of the sight and reach of children at all times.

Disposal Instructions

Unused or expired Ivervet must be handled according to official guidelines.

  • Method: Disposal should be performed in accordance with local requirements.
  • Environmental Warning: Due to the risk to aquatic organisms, Ivervet must not be disposed of via wastewater or household trash.

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

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