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Alizapride

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Alizapride

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Treatment option:

Medically reviewed

Rosario Oropesa

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.

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Overview of Alizapride

Quick Facts

Property Description
Active ingredient Alizapride (or Alizapride hydrochloride)
Form Tablet, Solution for injection
Pharmacological class Dopamine Antagonist, Antiemetic, Prokinetic Agent
General purpose Relief from nausea and vomiting
Origin Synthetic organic molecule

What Type of Drug is Alizapride?

Alizapride is a synthetic organic small molecule classified primarily as a potent dopamine antagonist, a key action profile recognized in pharmacological studies. This specific antagonism places it in the broader category of medicines used to manage functional gastrointestinal disturbances. Chemically, Alizapride is identified as a substituted benzamide derivative, sharing a foundational structure with other anti-sickness agents. This dual agent is both an antiemetic agent (anti-sickness) and a prokinetic agent (motility enhancer). This comprehensive approach, addressing both central signaling and digestive movement, is a differentiating factor from agents that only address one component.

Composition, Forms, and General Purpose

This medication is a single active ingredient product, with the core therapeutic substance being Alizapride, typically handled as Alizapride hydrochloride. As a medicinal entity, Alizapride is available in multiple dosage forms, including a tablet for oral administration and a sterile solution for injection in ampoules, facilitating both intramuscular (IM) and intravenous (IV) routes. Its general therapeutic purpose is to provide rapid and comprehensive relief from severe episodes of sickness, a common use scenario being the management of post-operative nausea. Its role includes enhancing the motility of the upper digestive tract. This characteristic underscores its ability to help restore normal digestive flow, a feature clinically recognized for supporting faster resolution of acute sickness symptoms.

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What side effects are possible with Alizapride?

Possible Side Effects and Safety Information

The official safety profile for Alizapride is structured to communicate documented adverse reactions and necessary usage constraints as defined in regulatory labeling. Adverse effects are formally categorized by frequency and the physiological system affected.

Frequency-Classified Adverse Reactions

The regulatory safety profile consistently lists reactions by frequency:

  • Common / Frequent: Reactions reported to occur more frequently include drowsiness, dizziness, headache, fatigue, and gastrointestinal disturbances such as diarrhea, constipation, and abdominal discomfort.
  • Uncommon / Less Common: Less frequent neurological effects, such as restlessness, agitation, and confusion, are documented, along with allergic reactions.
  • Rare: More severe, less frequent effects, including hallucinations, seizures, and cardiovascular changes like palpitations and blood pressure fluctuations, are officially listed in this category.

System-Organ Classes and Serious Reactions

Adverse reactions are grouped according to the physiological system or organ class affected, with the Nervous System and Gastrointestinal System being primary domains. The official label specifies certain reactions as Serious Adverse Reactions (SARs) that warrant high attention, despite their rarity. These include Extrapyramidal Symptoms (EPS), which can manifest as tremors or acute dystonic reactions, and the occurrence of seizures.

Safety-Related Restrictions

Official prescribing information includes specific limitations on use. Alizapride is contraindicated in patients with known hypersensitivity to the drug components. Due to its effect on gastrointestinal motility, it is also contraindicated in conditions that predispose to gastrointestinal perforation or hemorrhage, such as peptic ulcer disease or obstruction. Cautions are specified for patients with a history of seizure disorders or pre-existing heart conditions, requiring strict medical oversight.

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Overdose and Emergency Response

Overdose and When to Seek Help

This section summarizes the officially documented descriptions of overdosage for Alizapride, derived exclusively from authoritative government regulatory labeling, and details the specific signs and mandated emergency actions.

Documented Clinical Manifestations

The regulatory information states that an overdosage may present with specific signs affecting the central nervous system. The formally recognized clinical manifestations of overdosage include extrapyramidal disorders and profound drowsiness. The occurrence of either of these documented clinical signs following exposure requires immediate attention from medical professionals, as they signify a need for urgent assessment.

Regulator-Defined Management and Antidote Status

The regulatory documentation specifies that there is no specific antidote officially known for alizapride overdosage. Consequently, clinical management is based entirely on symptomatic and supportive treatment measures.

  • Treatment Procedures: Supportive care authorized in official labeling may include the administration of a myorelaxant, with benzodiazepine compounds listed as an example of an intervention. A procedural step involving the administration of an anticholinergic antiparkinsonian agent is also documented.
  • Population Constraint: A critical constraint in the management procedure is that the administration of an anticholinergic antiparkinsonian agent is explicitly specified for adults only.

When to Seek Urgent Medical Help

Urgent medical assistance is required immediately upon the observation of any documented clinical manifestations of overdose, including the presentation of extrapyramidal disorders or severe drowsiness. Any suspected overdosage necessitates contacting emergency services or a qualified healthcare provider without delay.

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Therapeutic Uses of Alizapride

What Alizapride Treats: Main Uses and Benefits

Targeting Acute and Severe Sickness Symptoms

The medication is commonly used for providing supportive relief during acute episodes of nausea and vomiting where symptoms are intense and may interfere with daily functioning. It is generally applied across domains where additional symptomatic support is needed, primarily addressing symptoms related to physical discomfort. It provides supportive relief for managing these manifestations, which generally helps ease the overall symptom burden and contributes to improved comfort during periods of heightened distress.

Supportive Relief in Specialized Medical Contexts

Alizapride is particularly applicable in clinical settings that involve acute or disruptive symptom patterns, such as the management or prevention of Postoperative Nausea and Vomiting (PONV) following surgery and Chemotherapy-Induced Nausea and Vomiting (CINV). These scenarios may benefit from short-term symptomatic assistance to manage distressing manifestations. It supports patients during difficult episodes by easing distress and assisting with maintaining functional stability.

Addressing Symptom Clusters Associated with Functional Stress

It is also relevant for easing symptom clusters that include symptoms related to functional stress and digestive discomfort. This supports general well-being during symptomatic phases. Overall, Alizapride is relevant for easing symptoms in conditions presenting with acute episodes and recurrent manifestations, where symptom relief contributes to patient comfort.


Quick Fact: Symptomatic Focus

Indication Focus Use Context Primary Benefit
Symptom Management Acute episodes of sickness Helps ease the overall symptom burden
Specialized Support Post-surgery or chemotherapy Contributes to maintaining functional stability
Functional Stress Symptoms related to physical discomfort Supports general well-being during symptomatic phases
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Eligibility and Restrictions for Use

Who Can and Cannot Use Alizapride?

The eligibility for Alizapride is governed by specific population rules established by regulatory authorities, which define absolute prohibitions and use restrictions.

Approved Population: Alizapride is officially reserved for use only in adults (ge 18 years). The regulatory indication for use in children and adolescents (lt 18 years) has been formally suppressed.

Absolute Contraindications (Must Not Use): The medicine is strictly contraindicated for patients with:

  • Known hypersensitivity to the drug or excipients.
  • Pregnancy.
  • Specific neurological disorders, including a history of neuroleptic-induced tardive dyskinesia or concurrent use of levodopa or dopaminergic medicines.
  • Pheochromocytoma.
  • Any acute digestive emergency, such as gastrointestinal perforation, hemorrhage, or obstruction.

Conditional Use and Restrictions: Caution or use modification is required for certain groups. Use is not recommended in patients with a history of epilepsy due to the potential to lower the seizure threshold. Patients with moderate to severe renal impairment require a recommended dose adjustment. Additionally, prudence is advised when administering the medicine to older adults due to increased susceptibility to effects like sedation. Caution is also advised for women who are breastfeeding.

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What should I know about interactions with other medicines?

The official regulatory profile for Alizapride focuses on pharmacodynamic interactions that alter the effects of co-administered substances. These restrictions are classified based on the potential for efficacy loss or increased central nervous system effects, as documented in governmental prescribing information.

Interaction Profile Summary

Interaction Partner Category Official Interaction Mechanism Restriction Type
Levodopa (L-Dopa) Antagonism of therapeutic efficacy Formal Contraindication
Dopamine Agonists Decreased therapeutic efficacy of the agonist Clinically Significant
CNS Depressants Potentiation of central adverse effects (e.g., sedation) Use-with-Caution

Documented Interaction Patterns

The interaction structure is defined by Alizapride’s activity as a dopamine antagonist, which necessitates restrictions with other dopaminergic medicines. Co-administration with Levodopa (L-Dopa) is a contraindicated combination because the dopamine-blocking action directly negates the intended therapeutic effect. This same pharmacodynamic antagonism applies to other Dopamine Agonists, resulting in a diminished therapeutic response from the co-administered agent.

Conversely, combination with Central Nervous System (CNS) Depressants, such as opioid analgesics or sedative antihistamines, can lead to pharmacodynamic potentiation. This results in an increased risk of central adverse effects, notably pronounced sedation or drowsiness. This additive effect is also officially documented for Alcohol (Ethanol), where co-ingestion enhances the medicine’s central sedative effect. Furthermore, Anticholinergic Drugs may antagonize Alizapride’s prokinetic effect on the digestive tract. No timing separation rules or population-specific interaction considerations are explicitly mandated in the official interaction sections of the product label.

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Mechanism of Action

Central and Peripheral Receptor Antagonism

Alizapride acts on two distinct receptor systems. It crosses the blood-brain barrier to function as an antagonist at central D2 dopamine receptors. This interaction modulates the central reflex arc associated with emesis in the brainstem. Furthermore, it inhibits the 5-HT3 (serotonin) receptor both within the chemoreceptor trigger zone (CTZ) and peripherally in the gastrointestinal tract.


Dual Action and Receptor Affinity

This dual central and peripheral action influences the transmission of emetic stimuli, as the combined receptor blockade reduces the system's overall response to triggering signals. Alizapride demonstrates high affinity for D2 receptors, which constitutes a core component of its pathway-level function.

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Dosage and Administration Information

Official Administration Guidelines

Alizapride is administered through two primary routes: oral tablets and parenteral injection (intravenous or intramuscular), which facilitates use in both acute and sustained short-term care settings.

Administration Scope

Scope Element Clinical Guideline
Routes Oral, Intravenous (IV), and Intramuscular (IM) injection.
Dosing Schedule Standard adult routine dosing typically ranges from 100 mg to 200 mg per day, administered in divided doses. A separate, higher dosing regimen is utilized for managing severe acute episodes, such as those related to chemotherapy (CINV), often based on body weight or specific patient factors.
Frequency Tablets are typically taken multiple times per day to ensure consistent effect; injections follow a defined, event-triggered schedule (e.g., a pre-treatment dose followed by scheduled post-treatment doses).
Duration Constraint Continuous treatment is restricted to short-term use and should not exceed a maximum of seven days, a requirement that limits overall exposure.

Procedural Requirements

The method of administration is defined by the clinical context. The injection form is typically reserved for acute, severe episodes. When administered intravenously, guidelines specify the solution be given via slow intravenous infusion in scenarios like post-operative use, ensuring proper introduction into the body. For patients with severe kidney (renal) impairment, standard protocols include a dose reduction to modify the standard regimen for this specific population. This combination of defined routes, precise dose limits, and an explicit maximum duration ensures the medicine is used only under standardized, short-course protocols established for clinical use.

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Recent Clinical Evidence

Research Evidence / Overview of Studies

Alizapride is an antiemetic medication primarily evaluated for the prevention and management of nausea and vomiting, particularly those related to cancer treatment (chemotherapy-induced nausea and vomiting, or CINV) and certain surgical procedures.


Efficacy in Nausea and Vomiting

Studies have assessed the impact of alizapride on preventing or limiting episodes of nausea and vomiting in patients undergoing cancer chemotherapy, often involving agents associated with a high likelihood of emesis. Research has included trials comparing alizapride to other antiemetic agents such as metoclopramide and domperidone.

  • Some comparative studies noted measurements suggesting that alizapride was more effective than domperidone in managing severe nausea and vomiting episodes associated with cisplatin chemotherapy, while both were similar in limiting mild nausea.
  • Conversely, some high-dose comparisons against metoclopramide found that metoclopramide was associated with fewer vomiting episodes.

Administration and Study Populations

Clinical data focuses on intravenous administration, including specific weight-based administration protocols used in the trial settings. Studies have explored whether alizapride could be used as a permitted rescue therapy for patients experiencing breakthrough symptoms despite initial preventive treatment for CINV.

Study populations have primarily included adult cancer patients receiving chemotherapy and patients undergoing certain surgical procedures, such as laparoscopic gynecological surgery.


Safety Profile and Side Effects

Observed side effects were documented and categorized in the study populations. Common adverse effects reported in trials included sedation, diarrhoea, and headache. In certain high-dose comparisons, there were recorded instances of hypotension and extrapyramidal signs, which are side effects related to the central nervous system.

Key Studies & References

  1. Effectiveness of Alizapride for Prophylaxis of Nausea and Vomiting after Spinal Anesthesia for Cesarean Section
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Frequently Asked Questions (FAQ)

Common questions about Alizapride (FAQ)

Q: Is Alizapride used for anything other than nausea?

A: According to official classification documents, Alizapride is known for its dual action. Beyond treating nausea and vomiting, it is also defined as a prokinetic agent. This means it can help enhance the movement and motility of the upper digestive tract.

Q: Is it common to feel tired after taking Alizapride?

A: Yes, the official safety profile lists both fatigue and drowsiness as common adverse reactions. This means that a significant number of patients in clinical settings reported feeling tired after taking the medication.

Q: Can children or teenagers use Alizapride?

A: Official regulatory documents clearly state that the indication for Alizapride is reserved for use only in adults, defined as individuals aged 18 years and above. Therefore, its use in children and teenagers is not authorized by prescribing information.

Q: Is Alizapride approved for use in elderly patients?

A: The use of Alizapride in older adults is possible but requires special caution and prudence. Official guidelines advise this due to an increased susceptibility to side effects, such as sedation. Furthermore, if an older patient has diminished kidney function, a dose adjustment is officially recommended.

Q: What evidence is available regarding the effectiveness of Alizapride?

A: Official regulatory information indicates that efficacy is established for the prevention and treatment of nausea and vomiting. This includes episodes related to cancer chemotherapy (CINV) and those occurring after certain surgical procedures (post-operative nausea).

Q: Can Alizapride cause dizziness?

A: Yes, dizziness is listed as a common adverse reaction in the official safety profile. This means it is an effect reported frequently in patients who have used the medication.

Q: How quickly does Alizapride usually start to work?

A: While official regulatory documents do not specify an exact time for the onset of action, the drug is known to be absorbed relatively quickly into the bloodstream. This rapid absorption supports its use for acute episodes of sickness.

Q: How long does the effect of Alizapride typically last?

A: The duration of the drug’s presence in the body is relatively short. According to pharmacokinetic data, the elimination half-life is typically reported as approximately two to 2.8 hours.

Q: Can Alizapride affect sleep patterns?

A: The drug may indirectly affect sleep due to its known common side effects. Official regulatory information lists both drowsiness and fatigue, which can influence a patient's normal sleep schedule or patterns.

Q: Are there any long-term effects associated with Alizapride use?

A: Official regulatory guidance restricts the continuous treatment duration to a maximum of seven days. This mandatory short-term use limits the overall long-term exposure for patients.

Q: Is Alizapride considered a narcotic or controlled substance?

A: Based on classification by major drug regulatory agencies, Alizapride is not listed as a narcotic or a controlled substance under federal drug schedules.

Q: Is it safe to drive after taking Alizapride?

A: No, official regulatory guidance contains warnings regarding driving and operating machinery. The regulatory warning indicates that patients must exercise caution and should not drive or operate machinery until they are certain of how the drug affects them.

Q: Does Alizapride contain lactose or gluten?

A: The specific contents, including non-active ingredients or excipients like lactose or gluten, are detailed in the official Summary of Product Characteristics (SmPC) for each formulation. This regulatory document lists all the components of the medicine.

Q: Is Alizapride ever used before surgery?

A: The official therapeutic indications include the prevention and treatment of nausea and vomiting in the post-operative setting. The regulatory information does not mention or indicate its use for patients before surgery (pre-operative).

Q: How is Alizapride eliminated from the body?

A: The regulatory data on how the drug is cleared from the body (pharmacokinetics) shows that its elimination is primarily renal. This means that Alizapride is mainly excreted, largely unchanged, through the urine.

Q: Are there specific instructions for patients with liver impairment using Alizapride?

A: The drug's clearance from the body relies minimally on liver metabolism, as it is mainly eliminated through the kidneys. This characteristic indicates that, while dose adjustment is mandated for kidney impairment, the drug’s clearance does not heavily rely on the liver.

Q: Can Alizapride be taken with food, or on an empty stomach?

A: Official product labeling, found in the administration section of the regulatory documents, provides guidance on how to take the tablet formulation. This includes whether it should be taken with or without food for optimal effect.

Q: Does Alizapride have any known effects on laboratory test results?

A: Information regarding any known interference with common laboratory or diagnostic tests is typically included in the special warnings and precautions section of the regulatory documents. Official product labeling contains warnings regarding any known interference.

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How should Alizapride be stored and disposed of?

Official Storage and Disposal Requirements

Alizapride must be stored according to specific regulatory guidelines to maintain its stability and effectiveness. The primary instruction is to store the medicine at a temperature not exceeding 30 C for both tablets and injection solutions.

Storage Component Requirement
Temperature Do not store above 30 C
Moisture/Light Store tablets in a dry place
Container Keep in the original container/package

These constraints define the necessary environment to protect the product. Disposal of expired or unused Alizapride must adhere to established pharmaceutical waste collection guidelines, as required by regulatory documentation. Do not dispose of this medicine in household waste or wastewater unless instructed to do so by local waste management officials.

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

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