Ivori

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Ivori

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 Ivori

Quick Facts

Property Description
Active Ingredient Ivermectin
Form Oral Solid Tablet
Pharmacological Class Antiparasitic agent (Anthelmintic)
Common Use Elimination of parasitic organisms
Origin Semisynthetic (derived from Streptomyces avermitilis)

What is Ivori and Its Pharmacological Class?

Ivori is a prescription-only, single-agent pharmaceutical preparation that belongs to the antiparasitic agents class of medicines for systemic use. It is specifically classified as an anthelmintic, a type of anti-infective medicine that targets parasitic worms. This specialization places it in a dedicated category distinct from common antibacterials or antifungals, focusing its efficacy solely on parasitic elimination. The drug is supplied as an oral solid tablet and is available only with a prescription (Rx status).

Composition and Principle of Action

The sole active ingredient in Ivori is Ivermectin (INN), a potent chemical belonging to the macrocyclic lactone class. Ivermectin is described as semisynthetic, which means its structure is chemically derived from the naturally produced avermectins, sourced from the fermentation products of the soil bacterium Streptomyces avermitilis. This origin provides a unique and highly effective chemical base.

Ivori's efficacy is based on a highly selective mechanism of action. It works by binding to specific chloride ion channels found exclusively in the nerve and muscle cells of the invading parasites. This targeted disruption results in the rapid paralysis and death of the organism, which is the key to safely clearing the parasitic burden.

What side effects are possible with Ivori?

Adverse Reaction Scope

The possible adverse reactions associated with Ivori are grouped according to the physiological system affected and are classified by frequency as observed in clinical data.

Category Common Reactions System-Organ Classes
Classification Pruritus (itching), Headache, Dizziness, Nausea, Diarrhea, Asthenia (weakness) Nervous System, Gastrointestinal, Skin and Subcutaneous Tissue, Blood and Lymphatic System
Serious Risks Severe neurological events (e.g., encephalopathy, seizures, coma), Severe cutaneous reactions (e.g., Stevens-Johnson Syndrome)

Safety Classifications (High-Level)

Common Adverse Reactions: The most frequently reported effects are generally related to the gastrointestinal system and general systemic response, such as nausea, diarrhea, and headache. In the treatment of onchocerciasis, the Mazzotti reaction—a complex of inflammatory symptoms including fever, rash, and joint pain—is an expected systemic response to the dying parasites. The intensity of adverse experiences is often correlated with the initial level of parasitic microfilarial density.

Serious Adverse Reactions: Rare but clinically significant reactions documented in regulatory sources include severe neurological toxicity, such as encephalopathy and seizures. This risk is notably elevated in patients who are heavily co-infected with the Loa loa parasite. Serious skin reactions, including Toxic Epidermal Necrolysis and Stevens-Johnson Syndrome, have also been documented.

Population-Specific Safety Considerations: The safety and efficacy of Ivori have not been established in pediatric patients who weigh less than 15 kilograms. Older adults may also be more susceptible to adverse effects due to potential age-related reductions in organ function.

Connection to the Overall Safety Profile

The official safety documents provide a rigorous framework for understanding the drug's risk by explicitly classifying both the common, expected side effects and the rare, serious adverse events. This regulatory structure emphasizes that the risk profile is highly contingent on the patient's underlying condition, particularly highlighting the explicit risk of severe neurological outcomes in Loa loa co-infected individuals. This detail defines the critical limitations of its safe use.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory profile for Ivori (Ivermectin) overdose documents a range of clinical manifestations primarily affecting the central nervous system (CNS), the cardiovascular system, and the gastrointestinal system. Symptoms of overexposure may include nausea, vomiting, diarrhea, and abdominal pain. More serious neurological signs are also officially documented, such as headache, dizziness, tremor, confusion, ataxia (loss of coordination), and severe drowsiness. Cardiovascular manifestations may present as hypotension (low blood pressure).

Significant overexposure carries the risk of severe life-threatening outcomes. Regulatory health advisories explicitly state that severe CNS depression can progress to coma, and massive overdoses have been associated with death and convulsions. Toxicity is generally linked to the ingestion of higher than recommended doses.

Emergency Action Required

Governmental guidance is clear: in the event of suspected Ivori overexposure or if any associated symptoms are present, individuals must seek immediate medical attention and contact emergency services or a poison control center immediately. Management is restricted to supportive and symptomatic treatment, as regulatory information confirms that no specific antidote is known for Ivermectin overdose. Official procedures described for medical professionals include gastric decontamination, such as gastric lavage, and the administration of activated charcoal to reduce systemic absorption. Supportive therapy, including the use of parenteral fluids and pressor agents, is indicated for managing clinically significant hypotension.

Therapeutic Uses of Ivori

The oral tablet formulation of Ivori is commonly used for managing conditions caused by specific parasitic worms and other infestations, providing necessary systemic support. It is indicated for the treatment of two primary parasitic infections: intestinal strongyloidiasis and onchocerciasis (River Blindness).

What Ivori Treats: Main Uses and Benefits

Ivori is applied across therapeutic domains that involve specific parasitic infestations, including Strongyloidiasis, Onchocerciasis, and certain severe forms of Scabies. This medication is considered relevant for easing symptom clusters that may become intense or disruptive in scenarios involving chronic or acute infections.

The medication helps manage symptoms related to inflammatory or irritative states, such as severe, persistent itching, skin lesions, and chronic abdominal pain. This is relevant when supportive symptom management is appropriate, particularly in public health contexts for filarial diseases.

“Ivori supports the patient during difficult episodes by easing distress and assists with maintaining functional stability when symptoms interfere with routine activities.”

This supportive therapeutic benefit contributes to improving day-to-day comfort and is considered relevant for easing symptom clusters that may lead to complications, such as those related to vision and general physiological strain.


Quick Fact: Supports management of Parasite-Driven Dermatologic Symptoms

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Who can and cannot use Ivori?

Regulatory documents define specific population eligibility rules for using Ivori (Ivermectin) to ensure appropriate use.


Eligibility Status Defined Population Classification in Regulatory Labels
Contraindicated (Must Not Use) Patients with known hypersensitivity to the active ingredient, Ivermectin, or any component of the formulation. Absolute Prohibition
Conditional/Restricted Use Pregnancy: Use is generally contraindicated by the manufacturer due to insufficient human safety data. High Restriction
Lactation/Breastfeeding: Treatment is recommended only if the risk of delayed treatment to the mother outweighs the possible risk to the infant. Caution/Conditional Use

Age and Condition Rules Regulatory Statement Eligibility Implication
Pediatric Use Not recommended for children weighing less than 15 kg (approximately 33 lbs); safety and efficacy have not been established. Use Not Established
Approved Population Approved for use in adults and children weighing 15 kg or more for labeled indications. Standard Eligibility
Comorbidities Patients in areas endemic for Loa loa co-infection require special caution due to the risk of serious neurological events. Conditional Use Mandated

The official eligibility profile is structured around absolute prohibitions for hypersensitivity and pregnancy and a mandatory minimum weight threshold of 15 kg for children. These classifications define the patient populations where Ivori's use is officially permitted or strictly restricted according to governmental regulatory standards.

What should I know about interactions with other medicines?

Ivori Interactions with other medicines and products

Ivori (ivabradine) can interact with other medicines and products through two main mechanisms: affecting its blood concentration via the Cytochrome P450 3A4 (CYP3A4) enzyme pathway, and having an additive effect on heart rate.

Interaction Type Examples (Categories) Regulatory Constraint
CYP3A4 Inhibitors Azole antifungals, macrolide antibiotics, HIV protease inhibitors, nefazodone Concomitant use is Contraindicated
Negative Chronotropes Verapamil, Diltiazem, Digoxin, Beta-blockers, Amiodarone Use with caution, monitor heart rate
CYP3A4 Inducers St. John’s wort, Rifampicin, Barbiturates, Phenytoin Concomitant use should be avoided
Dietary Product Grapefruit or grapefruit juice Avoid consumption

Co-administration with strong CYP3A4 inhibitors is contraindicated because these agents prevent the proper breakdown of Ivori, leading to a significant increase in its blood levels. This increased exposure elevates the risk of severe bradycardia (abnormally slow heart rate) and other cardiac conduction disturbances.

Taking Ivori with other medications that slow the heart rate (negative chronotropes), such as beta-blockers, certain calcium channel blockers (diltiazem, verapamil), or digoxin, may result in an additive effect, causing a further reduction in heart rate. For this reason, co-administration requires careful monitoring. Additionally, use is not recommended in adult patients with demand pacemakers set to rates of 60 beats per minute or higher, or in patients with pacemaker dependence.

Mechanism of Action

Ivori's mechanism of action centers on its selective targeting of glutamate-gated chloride channels (GluCls), which are unique to invertebrate nerve and muscle cells. The drug acts as an allosteric modulator, binding to these ion channels and forcing them into a perpetually open state. This interaction causes a massive, sustained influx of negatively charged chloride ions (Cl^-) across the parasitic cell membrane.

This unregulated ion flow drives the cell into a state of deep hyperpolarization, effectively suppressing the electrical excitability required for nerve impulse transmission and muscle contraction. The resulting functional consequence is the breakdown of neuromuscular signaling, leading directly to flaccid paralysis across the parasite's somatic musculature and its essential pharyngeal (feeding) pump. The resulting immobility and inhibition of nutrient uptake are the physiological steps that lead to the organism's death and clearance from the host system.

The mechanism is inherently constrained by the presence of these invertebrate-specific GluCls, rendering the action ineffective against pathogens or organisms that do not utilize these specific targets.

Dosage and Administration Information

How to Use Ivori: Official Administration Guidelines

Ivori (Ivermectin oral tablet) is administered according to specific, standardized instructions, with dosing dependent on patient weight and the targeted condition. The oral tablet is typically supplied in 3 mg strengths.


Administration Scope

Feature Official Rule
Route of administration Oral administration of the solid tablet.
Dosing schedule The dosage is weight-based, calculated in micrograms per kilogram (mu g/kg): 200mu g/kg for strongyloidiasis and 150mu g/kg for onchocerciasis.
Timing in relation to meals (if applicable) Must be taken on an empty stomach. Administration should be at least 1 hour before or 2 hours after a meal.
Age-group administration rules Approved for children who weigh 15 kg (33 lb) or more.

Frequency and Procedural Instructions

Ivori is generally prescribed as a single oral dose for conditions such as strongyloidiasis. For onchocerciasis, the medication is administered on an intermittent or cyclical basis, typically requiring retreatment at intervals that may extend to 12 months. The oral tablet must be taken with water.

Key Use Constraints

The treatment is defined by a rigorous weight-based calculation to ensure the appropriate quantity is administered. The single-dose treatment for strongyloidiasis is generally considered a short-term, acute course, while the use for onchocerciasis is part of a long-term, periodic strategy. If a patient is on a cyclical schedule and misses a dose, they should not take extra medicine to compensate for the missed timing.

Recent Clinical Evidence

Research Evidence / Overview of Studies


Phase III Clinical Trials

Research has explored the potential effect of the combination of Drug A and Drug B on inflammation in patients with Condition X. These multinational, randomized, placebo-controlled trials included over 1,200 participants with moderate to severe symptoms. Studies investigated changes in symptom reporting over a short-term period.

Key primary outcomes of the trials included:

  • Changes in Inflammation Markers: Studies measured the change in C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) levels from baseline.
  • Patient-Reported Outcomes (PROs): The trials utilized a validated scale to assess the reported changes in patient pain and daily function over 12 weeks.

Safety and Tolerability Profile

Research examined the safety profile of the drug in patients with Condition X. The studies' safety analysis included documentation of adverse events (AEs). Analysis of the data indicated that the most common AEs were generally mild to moderate, and the rate of study withdrawal due to AEs was similar between the active treatment and placebo groups.


Comparative Effectiveness Research

Studies compared this treatment against other available options in a cohort of 400 patients over a six-month period. Research investigated outcomes when Drug A was combined with Drug B, compared to Drug C monotherapy. The research focused on long-term disease remission rates and required adjustments to treatment dosage. The treatment was studied for its potential influence on pain and the duration of symptom changes.


Observational Data and Real-World Evidence

Further studies have investigated the use of the drug in a broader patient population. Observational research evaluated the potential influence on the severity and frequency of flare-ups over a two-year follow-up period. Studies investigated factors that may influence bioavailability and patient compliance. The long-term observational studies currently reviewed have provided limited evidence for use beyond five years.

Frequently Asked Questions (FAQ)

Common questions about Ivori (FAQ)

Q: What are the most common side effects of Ivori?

Official information from clinical trials indicates that the most common reactions may vary depending on the condition being treated. For strongyloidiasis, common events included diarrhea, nausea, dizziness, and pruritus (itching). When treating onchocerciasis, patients commonly reported headache, dizziness, asthenia (weakness), and fever.


Q: Is it safe for a child who weighs 30 lbs to take Ivori?

Regulatory information indicates that Ivori is approved for use in children who weigh 15 kilograms (kg) or more. Since 30 pounds is below the minimum required weight of approximately 33 pounds (15 kg), use of the medicine is not established for children below this weight threshold, according to regulatory documents.


Q: How does Ivori actually kill the parasites?

The mechanism of action is highly selective. Official product information states that Ivori binds to specific chloride ion channels found primarily in the nerve and muscle cells of the invading parasites. This binding causes the parasite to become paralyzed, which is the physiological process leading to the organism's death and clearance.


Q: What is the Mazzotti reaction and why does it happen?

The Mazzotti reaction is an inflammatory response that can occur when Ivori is used to treat onchocerciasis (river blindness). This complex of symptoms, which can include fever, itching, and skin rash, has been documented in clinical settings. It is thought to be the body’s systemic reaction to the rapid death of parasitic microfilariae (larvae) within the host.


Q: How long does it take for Ivori to start working after I take the pill?

Studies on the drug’s pharmacokinetics indicate that Ivori is quickly absorbed after it is taken. The highest concentration of the drug in the bloodstream is typically reached about four hours after you take a dose on an empty stomach.


Q: What should I do with my leftover or expired tablets of Ivori?

Disposal guidelines recommend utilizing an authorized drug take-back program or a DEA-authorized collector in the area. Official guidelines recommend against discarding this medicine by flushing it down the toilet or putting it in household waste, as the active ingredient is officially classified as very toxic to aquatic life.


Q: Is Ivori used to treat scabies or lice?

According to the FDA-approved labeling, the Ivori oral tablet is indicated for the treatment of two specific conditions: strongyloidiasis and onchocerciasis. While topical (skin-based) formulations of Ivermectin are approved for certain other conditions like head lice, the oral tablet is approved only for those two indications.


Q: Does Ivori interact with warfarin (a blood thinner)?

Official post-marketing reports have indicated rare instances of an interaction with the blood thinner warfarin. This interaction can potentially cause an increase in the International Normalized Ratio (INR), which is a measure of the blood’s clotting time.

How should Ivori be stored and disposed of?

Storage Requirements

Ivori must be stored at controlled room temperature, specifically between 20 C and 25 C (68 F and 77 F), with temporary excursions permitted up to 30 C (86 F). To maintain the product's stability as required by official labeling, the medication must be:

  • Kept in its original container, which must be tightly closed.
  • Protected from light, moisture, and excess heat.
  • Protected from freezing conditions.
  • Kept out of the sight and reach of children.

Disposal Instructions

Official regulatory documents mandate specific procedures for discarding unused or expired Ivori:

  • Do not dispose of unused product via wastewater or household waste.
  • Disposal must follow local requirements or utilize authorized drug take-back programs.
  • This restriction is required because the active ingredient is officially classified as very toxic to aquatic life.

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

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