Itona

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Medically reviewed

Laura Arias

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 Itona

Itona is a specific synthetic, single-ingredient, prescription medicine marketed as an oral tablet that contains the active substance Itopride hydrochloride (HCl). It is classified as a prokinetic agent (or gastroprokinetic agent), a pharmacological class dedicated to restoring and enhancing the movement (motility) of the upper digestive tract. Itopride is a recognized benzamide derivative.


Quick Facts

Property Description
Active ingredient Itopride hydrochloride (HCl)
Form Oral tablet (film-coated)
Pharmacological class Prokinetic agent Gastroprokinetic agent
Common use (General) Improving upper gastrointestinal motility
Origin Synthetic compound Benzamide derivative

Composition and Form: What is the Active Ingredient?

The core therapeutic component is Itopride hydrochloride, supplied as a film-coated tablet for oral administration. This preparation is distinguished by its dual mechanism of action, a feature that sets it apart from certain older prokinetic agents. Itopride achieves its effect by combining D2-receptor antagonism and acetylcholinesterase inhibition (AChE inhibition). This unique chemical strategy is recognized for optimizing the neurological signals that control muscle contractions in the gut, supporting its ability to promote the timely clearance of stomach contents.


Itona’s General Purpose for Digestive Function

The overarching purpose of Itona is to accelerate gastric emptying and restore efficient motor function to the stomach and esophagus. By enhancing the smooth muscle contractions of the upper gut, the medicine provides the general benefit of helping to relieve common, recurring dyspeptic symptoms like uncomfortable early satiety, bloating, or stomach discomfort that often arise when the movement of stomach contents is delayed. This function addresses the underlying mechanical issue of slow transit, making it a targeted solution for functional upper gastrointestinal impairment.

Regulatory References

  1. Prokinetic agent
  2. gastric emptying

What side effects are possible with Itona?

Official Safety Profile of Itona

This information details the possible side effects and safety restrictions for Itona, as documented in authoritative government regulatory sources.

Adverse Reactions by Frequency and Body System

The adverse reactions associated with Itona are formally classified by how often they occur, using standardized regulatory frequency categories (Very Common, Common, Uncommon, Rare, Very Rare, Not Known).

Side effects are also grouped by the main body system they affect (System-Organ-Class or SOC), such as Gastrointestinal disorders, Nervous system disorders, Immune system disorders, and Skin and subcutaneous tissue disorders. This organization helps describe the full range of potential effects.

Serious Adverse Reactions

Regulatory documents highlight specific, serious adverse reactions that are potentially life-threatening or require significant medical intervention. These serious reactions often appear in prominent sections, such as Boxed Warnings (if applicable) or Contraindications, and represent critical safety concerns that have been formally verified by health authorities.

Safety Restrictions and Monitoring

Contraindications define situations or patient conditions where the use of Itona is strictly prohibited due to unacceptable safety risks. Additionally, the official labeling may specify requirements for safety monitoring, such as mandatory laboratory tests (e.g., liver function or blood counts) that must be performed before or during treatment.

Population-Specific Safety Notes

The safety profile may be modified or include specific warnings for certain populations. This includes safety considerations for use during pregnancy and lactation, as well as notes regarding differences in safety or monitoring requirements for pediatric or geriatric patients, or individuals with existing kidney or liver impairment.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdose with this substance is officially categorized as a life-threatening medical emergency by public health authorities due to its extremely high potency. The primary dangers are acute and severe central nervous system (CNS) and respiratory depression, which can rapidly lead to fatality.

Documented Overdose Manifestations

Physiological System Documented Signs/Symptoms
Respiratory Severe respiratory depression, respiratory failure
Central Nervous System Profound CNS depression, loss of consciousness

Required Emergency Actions

Immediate medical intervention is required for any suspected overdose. Emergency protocols emphasize that prompt action is critical:

  1. Naloxone Administration: The specific opioid antagonist, Naloxone, is required to counteract the effects. Due to the substance's high potency, multiple or higher doses may be necessary for reversal.
  2. Urgent Medical Attention: Following the suspicion of overdose or the administration of an antagonist, emergency services must be called immediately to ensure necessary supportive care and continuous monitoring are provided in a healthcare setting.

Overdose management in a medical facility involves symptomatic and supportive care, focusing on stabilizing the patient's airway and cardiovascular function. The risk profile is compounded when other CNS depressants are co-ingested, a factor often noted in official toxicological reports.

Therapeutic Uses of Itona

Quick Facts: Itona's Approved Uses

  • Indicated for treating certain types of hormone receptor-positive, HER2-negative breast cancer that is locally advanced or metastatic.
  • Used in a combination regimen following recurrence on or after completing adjuvant endocrine therapy.
  • Therapy is reserved for cancers that harbor one or more PIK3CA mutations, as detected by an approved test.

What Itona Treats: Main Uses and Benefits

Itona is a prescription medication utilized in oncology for managing a specific form of advanced breast cancer. Its approved therapeutic domain is the treatment of adults with breast cancer that is hormone receptor-positive (HR^+), human epidermal growth factor receptor 2-negative (HER2^-), and has spread locally or distantly (metastatic setting).

This medication is used as part of a combination regimen alongside other treatments, such as palbociclib and fulvestrant, for patients whose disease has progressed despite prior endocrine therapy. A key requirement for its use is the presence of specific genetic changes, namely one or more PIK3CA mutations, which must be confirmed using an approved diagnostic test. Itona is intended to provide a treatment option for individuals who meet these specific clinical and molecular criteria.

Eligibility and Restrictions for Use

Itona (nitazoxanide) is an antiparasitic medication used to treat diarrhea caused by certain protozoa in adults and children who are one year of age and older.

Contraindications (Who Cannot Use Itona)

Itona is generally contraindicated for use in patients with a known hypersensitivity or allergic reaction to nitazoxanide or any of its components.

Condition Use of Itona
Known Hypersensitivity Absolutely contraindicated.

Precautions (Use with Caution)

Certain patients should use Itona with caution and under close medical supervision due to potential risks, as its safety has not been fully established in these populations. Always inform your healthcare provider of your complete medical history, including:

  • Hepatic or Renal Impairment: Patients with significant liver or kidney disease should be monitored closely, as the drug's effects are not fully known in those with impaired function.
  • Weakened Immune System: Caution is advised for patients who are immunodeficient, including those with HIV/AIDS, as the safety and efficacy of Itona in this population have not been established.
  • Pediatric Use: The tablet formulation is not recommended for children under 12 years of age, and the oral suspension is not recommended for children under 1 year of age.

Itona should also be used with caution during pregnancy and breastfeeding; the potential benefits must be weighed against possible risks to the fetus or infant.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Pharmacodynamic and Absorption Interactions

The interaction profile for Itona (Itopride hydrochloride) is defined by its primary gastrokinetic effect and its unique metabolic pathway. The most relevant interaction involves pharmacodynamic antagonism with anticholinergic drugs. Co-administration with these agents may directly counteract and reduce the intended prokinetic action of Itona.

The medicine's acceleration of gastric emptying, or gastrokinetic effect, may influence the rate and extent of absorption for other co-administered oral medicines. Regulatory authorities specifically note this caution for oral products that have a narrow therapeutic index, or those with modified-release properties, such as sustained-release and enteric-coated formulations. The official documentation states that anti-ulcer agents like cimetidine and ranitidine do not impair Itona's prokinetic activity. Separately, no change in protein binding was observed when Itona was tested with substances such as warfarin or diazepam.


Metabolic Pathway and Population Notes

Itona is metabolized primarily by Flavine Monooxygenase (FMO), not by Cytochrome P450 (CYP) enzymes. This non-CYP metabolic pathway means that clinically significant enzyme-mediated interactions common with CYP inhibitors or inducers are generally not expected.

Official labeling includes a cautionary note for elderly patients, acknowledging the greater frequency of reduced hepatic and renal function in this population, which is an important factor in considering the relevance of co-administered medicines.

Mechanism of Action

Dual Mechanism of Action: Gastrointestinal Motility

Itona exerts its action through two simultaneous mechanisms that converge to amplify the effect of acetylcholine (ACh), a key signaling molecule in the regulation of gastrointestinal smooth muscle contraction. This action alters the signaling dynamics of the neurotransmitter, resulting in the modulation of gastrointestinal motility.

This mechanism involves a two-pronged approach: first, by acting as an antagonist and blocking D2 dopamine receptors located on nerve endings in the gut wall, Itona removes a natural inhibitory influence on ACh release. Second, it acts as an inhibitor of the acetylcholinesterase (AChE) enzyme, which quickly degrades released ACh.

This combined effect leads to elevated levels of active ACh in the synaptic space. The enhanced and prolonged cholinergic signaling directly stimulates the smooth muscle of the stomach and intestines. This results in more powerful, coordinated contractions (peristalsis) that accelerate the transit of contents, modifying activity within the targeted physiological pathways.

Dosage and Administration Information

Official Administration Guidelines for Itona (Sodium Iodide I-131 Capsules Diagnostic)

Itona is a radioactive drug administered orally as a single dose for diagnostic purposes. Its use must be strictly managed by qualified physicians in compliance with governmental regulations to minimize radiation exposure to both the patient and healthcare workers.

Procedural Requirements

Administration Scope Official Requirement
Route/Frequency Oral, single administration.
Preparation Maintain a low-iodine diet for two weeks prior to administration.
Timing Fast at least 2 hours before and 2 hours after administration to ensure absorption.
Dosing (Adult) Thyroid Function: 0.185 to 1.1 MBq (5 to 30 muCi). Thyroid Imaging: 1.85 to 3.70 MBq (50 to 100 muCi).
Safety Check Verify absence of pregnancy in females of reproductive potential prior to administration.
Post-Dose Patients are advised to hydrate and void frequently following administration to enhance the rapid urinary elimination of radioiodide not absorbed by the thyroid.
Handling Healthcare workers must wear waterproof gloves and maintain adequate shielding during handling.

Each patient dose must be accurately measured by a suitable radioactivity calibration system immediately prior to oral administration to confirm the correct activity is given. The dosage is non-periodic, with the goal of a single, precise application necessary for the subsequent diagnostic measurement. This protocol is defined by governing regulatory standards to ensure procedural safety and efficacy.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Summary of Key Research

Research has investigated the compound's activities and characteristics. Studies explored whether specific endpoints related to movement and daily activities were met in individuals with the targeted joint condition.


Clinical Study Findings

Primary Measurement Endpoints

Studies measured changes in pain indicators using various standardized scales. Research has explored the time points at which measurements were taken following initial administration, with various timelines investigated across different protocols. Further research has investigated whether specific inflammatory markers showed persistent changes in longer-term studies.

Study Type Duration Primary Focus
Study A Phase 3 RCT 12 weeks Changes in functional mobility score
Study B Observational 52 weeks Persistence of joint function measures

Participant Well-being and Safety Research

Clinical trials included dedicated arms that evaluated measures related to participant well-being and adverse events, with comparison to control groups. Research focused on characterizing the reporting of events across different patient groups and study durations.


Combination Therapy and Other Approaches

Studies have examined the use of combination therapy for moderate to severe cases, where the drug was administered alongside an existing standard treatment. This research investigated whether a combined approach influenced measured outcomes differently than monotherapy.

Research has explored the parameters of the study drug in differing dosage and administration schedules, as well as various other treatment approaches for this condition, including non-pharmacological interventions.

Conclusion of Evidence Review

Studies have explored the compound's actions in relation to inflammation. While research evaluated whether an observation was recorded in some outcome measures, further study may be required to fully characterize its profile.

Frequently Asked Questions (FAQ)

Common questions about Itona (FAQ)


Q: How is Itona different from other medicines used for the same condition?

Official product documents describe Itona (Itopride) as a prokinetic agent that utilizes a dual mechanism of action. This means it works in two ways: by blocking certain dopamine receptors and by inhibiting an enzyme called acetylcholinesterase. This combination is designed to amplify the effects of a key signaling molecule that controls muscle movement in the gut.


Q: Is there a generic version of Itona available?

The generic name for the prokinetic agent Itona is Itopride hydrochloride, and the generic name for the antiparasitic agent is nitazoxanide. Generic versions of medicines are often available, but availability depends on the specific country and brand name.


Q: Do you have to take Itona every day?

The frequency of use depends on the condition being addressed. Official product information for the prokinetic agent (Itopride) indicates that it is often prescribed for use multiple times per day. The antiparasitic agent (Nitazoxanide) is typically prescribed for a limited, short duration, such as a 3-day course.


Q: What happens if I accidentally miss a dose of Itona?

Official product information for the antiparasitic agent (Nitazoxanide) describes protocols for handling a missed dose, including guidance on taking it when remembered unless it is nearly time for the next dose. The label indicates that extra medication should not be used to compensate for a missed amount.


Q: How long does it usually take before a person feels the effect of Itona?

Pharmacokinetic data from official documents indicate how quickly the active ingredient enters the bloodstream. For the prokinetic agent (Itopride), maximum concentration in the blood is typically reached within 30 to 50 minutes after administration.


Q: Can I drink alcohol while I am taking Itona?

Regulatory information on the combination of Itona (Itopride) and alcohol is often listed as a caution or unknown interaction. Official safety documents emphasize that discussion with a healthcare provider regarding alcohol consumption is important, especially when the interaction is listed as a caution.


Q: Is Itona considered a controlled substance?

Regulatory agencies, such as the FDA, categorize medications based on their potential for abuse. Official documents indicate that the active ingredients Itopride and Nitazoxanide are not classified as controlled substances.


Q: What is the half-life of Itona?

The half-life describes the time it takes for half of the drug to be eliminated from the body. For the prokinetic agent (Itopride), the terminal half-life is approximately six hours. The active metabolite of the antiparasitic agent (Nitazoxanide) has a half-life of about 7.3 hours.


Q: Is it normal to feel a little dizzy when starting Itona?

Dizziness is listed in the regulatory documents as a known possible side effect for both active ingredients, Itopride and Nitazoxanide. Side effects are formally verified by health authorities and organized by the body system they affect.


Q: Does Itona affect sleep or cause insomnia?

Regulatory documents for the antiparasitic agent (Nitazoxanide) report insomnia as a possible adverse reaction. This is formally categorized under the Psychiatric System Organ Class in the official safety profile.


Q: Can Itona be used by children or teenagers?

Use of the prokinetic agent (Itopride) is generally not recommended for children under 16 years due to limited safety data. The antiparasitic agent (Nitazoxanide) has different rules: the tablet is not for children under 12, but the oral suspension is for children aged 1 year and older.


Q: What should I do if I suspect an interaction with another medicine?

Official patient counseling information emphasizes the importance of a healthcare provider being aware of all medications, vitamins, and supplements being used. Regulatory documents caution that Itona may influence the absorption of other oral medicines taken at the same time.


Q: Is Itona known to cause any long-term health issues?

Regulatory evidence summaries mention the existence of long-term clinical studies for the prokinetic agent (Itopride). These studies, some lasting up to 52 weeks, were designed to gather data on long-term safety and effectiveness.


Q: If I feel better, can I stop taking Itona?

Official regulatory patient notes describe the importance of professional medical oversight regarding the discontinuation of the medicine, even when symptoms have improved. Decisions regarding discontinuing any prescribed treatment course are defined in the label as requiring consultation with a healthcare professional.


Q: Is it common for Itona to cause dry mouth?

Dry mouth is listed in regulatory documentation as a reported side effect for the active ingredients Itopride and Nitazoxanide. Side effects are grouped by the body system they affect, in this case, Gastrointestinal disorders.


Q: How is Itona eliminated from the body?

Pharmacokinetic data shows that the active ingredients are cleared from the body through various pathways. The prokinetic agent (Itopride) and its breakdown products are primarily excreted in the urine. The antiparasitic agent (Nitazoxanide) is eliminated in the urine, bile, and feces.


Q: Does taking Itona impact blood pressure readings?

Regulatory documents list changes in cardiovascular measures among the reported adverse reactions for both active ingredients. These include reports of both hypotension (low blood pressure) and hypertension (high blood pressure).


Q: What is the typical duration of treatment with Itona?

The duration is determined by the specific use of the medication. The antiparasitic agent (Nitazoxanide) is typically prescribed for a limited, short duration, often three days. For the prokinetic agent (Itopride), some clinical studies have examined use for up to 8 weeks.


Q: How can I find reliable information about Itona's clinical trials?

Government-run registries, such as ClinicalTrials.gov, are official sources for information regarding clinical studies. Details on completed and ongoing research can be accessed using the drug's active ingredient name.


Q: Is Itona a widely-used medicine internationally?

The prokinetic agent (Itopride) is registered by various health authorities and is marketed under different brand names in several countries outside of the United States. Its classification is maintained by international bodies, such as the WHO.


Q: Is Itona meant for short-term use or long-term management?

The intended use varies based on the active ingredient. The antiparasitic agent (Nitazoxanide) is defined in its labeling as a short-term treatment, often prescribed for a duration of three days. The prokinetic agent (Itopride) is often utilized for short- to medium-term management of specific digestive symptoms.


Q: What makes Itona a prescription-only medicine?

The active ingredients, Itopride and Nitazoxanide, are classified by regulatory authorities as Prescription Drugs (Rx). This classification is applied because the medication requires professional medical supervision for safe and proper use due to its pharmacological effects and potential safety concerns.


Q: What are the signs of a serious allergic reaction to Itona?

Official regulatory warnings advise that signs of a serious allergic reaction may include hives, difficulty breathing, or swelling of the face, lips, tongue, or throat. These signs represent critical safety concerns verified by health authorities.


Q: What is the meaning of the generic name for Itona?

The generic names (Itopride hydrochloride and nitazoxanide) are the formal chemical designations for the active substance. Official documents use these names to define the drug's composition and chemical structure, such as being a substituted benzamide or a thiazolide derivative.


Q: Does Itona have any impact on fertility?

Regulatory documentation includes information derived from non-clinical animal studies that have investigated the impact of the active ingredients on fertility. This research data is formally reviewed by health authorities as part of the overall safety profile.

How should Itona be stored and disposed of?

Storage & Disposal Map: How to Store and Dispose of Itona

Storage & Disposal Scope Requirements
Labeled Storage Temperature Store at a temperature not exceeding 30 C (86 F).
Light/Moisture Protection Must be stored in a dry, dark place and protected from light and moisture.
Packaging-Related Rules Keep tablets in the original container/blister pack and keep the container tightly closed.
Child-Protection Storage Keep all medicine out of the sight and reach of children.

Official Disposal Rules

Unused or expired Itona should not be thrown away with household waste or disposed of via wastewater due to environmental concerns, as the substance is classified as hazardous to aquatic life. The product must be managed as pharmaceutical waste, with regulatory instructions recommending it be returned to a pharmacist or a designated drug take-back program for proper disposal. If no program is available, follow the official guidelines for mixing it with an undesirable substance before discarding in the trash.

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

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