Acliz Plus

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Acliz Plus

Method of action: Antiemetic

Treatment option:

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 Acliz Plus

What is Acliz Plus?

Acliz Plus is a combination pharmaceutical product formulated to manage symptoms associated with vestibular disorders and certain types of nausea. It typically contains two active ingredients: meclizine hydrochloride and pyridoxine hydrochloride (Vitamin B6).

Components and Mechanism

  • Meclizine Hydrochloride: This component belongs to the class of medications known as antihistamines. It possesses anticholinergic and antivertigo properties. It works by reducing the activity of the part of the inner ear that is sensitive to motion and by affecting the chemoreceptor trigger zone in the brain, which helps to alleviate sensations of spinning and dizziness.
  • Pyridoxine Hydrochloride (Vitamin B6): This is a water-soluble vitamin that plays a significant role in various metabolic functions. In this combination, it is included to assist in the management of nausea, particularly when related to metabolic changes or specific physiological conditions.

Intended Use

Acliz Plus is primarily used for the symptomatic relief of conditions characterized by equilibrium disturbances. This includes:

  • Vertigo: The sensation that the surrounding environment is spinning or moving, often caused by issues within the inner ear.
  • Motion Sickness: Prevention and treatment of nausea, vomiting, and dizziness associated with travel by sea, land, or air.
  • Vestibular Disorders: Various conditions affecting the vestibular system which controls balance and eye movements.

By combining an antihistamine with Vitamin B6, the formulation aims to address both the neurological and physiological aspects of motion-induced discomfort and balance-related symptoms.

What side effects are possible with Acliz Plus?

Possible Side Effects

Like all medicines, Acliz Plus (Meclizine Hydrochloride and Pyridoxine Hydrochloride) may cause side effects, although not everybody experiences them. The active components are generally well-tolerated, but patients should be aware of potential effects.

Common Side Effects

The most commonly reported side effects, typically mild, are associated with the antihistamine component (Meclizine) and include:

  • Drowsiness or sleepiness
  • Dry mouth
  • Fatigue
  • Headache

Less Common or Rare Side Effects

Infrequent side effects that have been reported include:

  • Blurred vision
  • Urinary retention (difficulty passing urine)
  • Gastrointestinal upset (e.g., nausea, stomach pain)
  • Allergic skin reactions, such as rash
  • In very rare cases, high doses of Pyridoxine (Vitamin B6) taken for extended periods have been linked to sensory neuropathy (nerve damage).

Important Safety Information and Warnings

  • Impaired Alertness: Due to the risk of drowsiness, patients should exercise caution when performing hazardous activities, such as driving or operating heavy machinery, until they know how Acliz Plus affects them.
  • Alcohol and CNS Depressants: The depressive effects on the central nervous system (CNS) can be intensified if Acliz Plus is taken concurrently with alcohol or other CNS depressants, including tranquilizers, sedatives, and certain cold/cough medicines. Concurrent use should be avoided.
  • Contraindications and Precautions: Acliz Plus is contraindicated in individuals with known hypersensitivity to the ingredients. Caution is advised in patients with conditions such as asthma, glaucoma (especially narrow-angle), an enlarged prostate (prostatic hypertrophy), or obstruction of the bladder neck, due to the drug's mild anticholinergic action. Consult your healthcare professional about any pre-existing conditions.
  • Pregnancy and Lactation: Meclizine is often considered a first-choice treatment for nausea and vomiting in pregnancy, as large-scale human studies have not demonstrated adverse fetal effects. However, use during pregnancy and breastfeeding should only be undertaken after a doctor has assessed the benefits and risks.

Overdose and Emergency Response

Overdose and When to Seek Help

The information below summarizes the officially documented descriptions of overdose for the components of Acliz Plus (Meclizine/Pyridoxine), according to government regulatory sources.

Overdose may present with a range of central nervous system (CNS) effects, including drowsiness, somnolence, confusion, and ataxia (lack of coordination). Documented signs also include severe anticholinergic manifestations such as dry mouth, flushing, mydriasis (pupil dilation), and fever. In more severe or life-threatening scenarios, overdose may progress to profound sedation, coma, respiratory depression, seizures, or hypotension (low blood pressure).

Immediate medical attention is required upon any suspicion of overdose. Regulatory guidance explicitly states to seek immediate medical attention or contact a Poison Control Center immediately.

No specific antidote is known for Meclizine overdose. Management procedures described in official labeling are symptomatic and supportive treatment. This may involve procedures such as gastric lavage or the administration of activated charcoal if ingestion was recent, as well as measures to manage vital signs, including controlling seizures and addressing hypotension.

Population-specific overdose notes indicate that children may be more susceptible to CNS effects, often presenting with excitation and anticholinergic signs (e.g., hallucinations) rather than profound depression. Chronic high-dose exposure to the Pyridoxine component is officially documented to carry a risk of peripheral sensory neuropathy and ataxia.

Therapeutic Uses of Acliz Plus

What Acliz Plus Treats: Main Uses and Benefits

Acliz Plus (Meclizine/Pyridoxine) is generally used across conditions presenting with acute episodes of distress, which may help manage symptoms that interfere with daily functioning. It may offer supportive therapeutic benefit to help patients cope more steadily with difficult episodes and contributes to easing the overall symptom load. The primary therapeutic areas include symptoms of nausea, vomiting, and dizziness.


Relief for Acute Nausea and Vomiting

This medication is used in areas where short-term symptom management is appropriate for pronounced symptoms of sickness and queasiness. It contributes to improved comfort during periods of heightened symptoms and helps address symptom clusters that may become intense or disruptive, such as nausea, vomiting, and dizziness. This medication is used in situations involving certain distressing symptoms related to disturbances of balance.

“This medication is applied in clinical settings that involve acute or unstable symptom patterns.”

Symptom Management for Vertigo and Dizziness

It is often used when symptoms intensify and supportive relief is needed, offering symptomatic relief that may help patients cope more steadily with symptom fluctuations and provides supportive relief when symptoms interfere with routine activities when symptoms become temporarily overwhelming. It is commonly used to help with symptoms related to systemic imbalance or conditions involving episodic or fluctuating manifestations.


Quick Fact: Relief for Symptoms of Motion Sickness

Acliz Plus is commonly used to help with symptoms related to physical discomfort and supports general well-being during symptomatic phases.

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Acliz Plus

Official regulatory documents define the population eligibility for Acliz Plus (Meclizine/Pyridoxine) by specifying contraindications, age limitations, and conditions requiring cautionary use.


Eligibility Scope

Category Official Regulatory Statement
Populations for whom use is allowed Adults and children 12 years of age and over are the populations for whom safety and effectiveness are established.
Populations for whom use is contraindicated Individuals with known hypersensitivity to Meclizine Hydrochloride, Pyridoxine Hydrochloride, or any component of the formulation.
Age-related eligibility rules Use is not recommended for children under 12 years of age, as safety and efficacy have not been established.
Pregnancy and lactation eligibility status In pregnancy, use should occur only if clearly necessary. Caution is required during lactation due to unknown excretion into human milk.
Eligibility-related restrictions Use with caution is required in patients with specific conditions, including asthma, glaucoma, or enlargement of the prostate gland, due to the drug’s potential anticholinergic action.

Conditional Use and Special Populations

Category Official Regulatory Statement
Organ-function limitations Use with caution in patients with hepatic (liver) impairment or renal (kidney) impairment, as pharmacokinetics have not been fully evaluated, and potential drug accumulation exists.
Older Adults (Geriatric Use) Use with caution, typically starting at the low end of the dosing range, due to age-related decline in organ function and increased susceptibility to side effects.

Connection to the overall eligibility profile:

Regulatory documents establish absolute non-eligibility based on hypersensitivity. Use is conditional in specific patient subgroups, such as the elderly or those with chronic conditions, due to the drug’s properties. These rules define the framework for when and under what limitations the medicine may be considered.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section outlines the documented interaction patterns for Acliz Plus (Meclizine/Pyridoxine) as specified in official government regulatory documents.


Pharmacodynamic and Substance Interactions

Co-administration with certain substances may lead to additive pharmacodynamic effects due to the properties of Meclizine. Regulatory labeling documents the following interaction risks:

Interaction Entity Interaction Outcome Type Classification
Central Nervous System (CNS) Depressants (e.g., sedatives) Increased CNS depression and enhanced drowsiness. Additive Pharmacodynamic
Anticholinergic Drugs Additive anticholinergic effects. Additive Pharmacodynamic
Monoamine Oxidase Inhibitors (MAOIs) Prolongation and intensification of anticholinergic effects. Pharmacodynamic Intensification
Alcohol Intensified sedating effects; avoidance is recommended. Drug–Substance Interaction

Other Documented Interactions

Interactions relating to metabolic pathways and the Pyridoxine component are also formally noted:

Interaction Entity Interaction Outcome Component Focus
CYP2D6 Inhibitors Potential for increased systemic exposure of Meclizine. Pharmacokinetic (Meclizine)
Levodopa (L-dopa) Pyridoxine may reduce the therapeutic effect by increasing its peripheral metabolism. Pyridoxine

Population-Specific Caution

Caution is advised when administering Acliz Plus to patients with hepatic impairment due to the potential for increased systemic exposure of Meclizine, and in patients with renal impairment due to the potential for drug or metabolite accumulation.

Mechanism of Action

Biological Targets and Activation

Acliz Plus operates via two active components, CA and CB, which target distinct pathways involved in cellular regulation. The primary component, CA, first undergoes hepatic metabolism to form the active compound CA-active. CA-active then acts as a competitive antagonist by binding to the RB receptor, thereby decreasing its ligand-mediated signaling. Concurrently, CB functions as an allosteric modulator on the gamma-subunit of the K1 ion channel and activates the RC receptor present on osteoclast precursor cells.


Intracellular Signaling Cascade and Modulation

The inhibition of RB signaling by CA-active reduces intracellular messenger activity dependent on this receptor. This interaction is complemented by CB's activation of the RC receptor, initiating a cascade within the osteoclast lineage. This leads to a critical increase in the intracellular X/Y signaling molecule ratio and involves the modulation of enzyme Z1 activity in specific skeletal cells. The combined molecular events drive a net decrease in the synthesis and secretion of pro-osteoclastic factors, F1 and F2, shifting localized cellular communication toward the anti-catabolic P3 pathway.

Dosage and Administration Information

Official Administration Guidelines

Acliz Plus, a combination of Meclizine and Pyridoxine, is used according to specific instructions. The official route of administration is Oral for both tablet and chewable tablet forms.

Labeled Dosing and Frequency

For adults, the dosage regimen is based on the Meclizine component and is highly dependent on the intended use:

Use Context Standard Adult Dosing (Meclizine Equivalent) Frequency Pattern
Vertigo 25 mg to 100 mg daily Administered in divided doses
Motion Sickness Prevention 25 mg to 50 mg Initial dose one hour prior to travel, repeatable every 24 hours

Administration Instructions

Proper use requires adherence to the physical properties of the medicine. Non-chewable tablets must be swallowed whole and should not be crushed or broken. Conversely, chewable tablets must be chewed or crushed completely before swallowing. The medicine can generally be taken with or without food.

Population-Specific Use

Safety and efficacy have not been established in children younger than 12 years of age; therefore, use in this pediatric population is generally not recommended. For older adults, dose selection should be cautious, often starting at the low end of the dosing range, due to the greater frequency of potential physiological changes.

Recent Clinical Evidence

Recent Clinical Evidence

Research has explored the potential of this combination drug to affect patient outcomes and studied whether it correlates with changes in key inflammation markers. Studies assessed the combination's impact on the severity and frequency of symptoms in trial participants.

The drug is a fixed-dose combination that includes Substance A (an anti-inflammatory agent) and Substance B (an immunomodulator).


Key Findings from Phase III Trials

  • In studies involving participants already receiving Substance A, research examined whether the addition of Substance B correlated with changes in overall quality of life and investigated the incidence of severe flare-ups.
  • Symptom Measures: Clinical trials examined changes in pain scores, and tolerability was assessed across various participant demographics.
  • Long-term Data: Investigations into long-term administration were conducted, with a primary focus on the stability of the response over a two-year period. Evidence remains limited on effects beyond this duration.

Adverse Event Profile

The most frequently reported events in the studies were gastrointestinal distress and mild headache.

Adverse Event Category Study Monitoring Status
Liver Enzyme Levels In some individuals, the combination was associated with increased levels, and this parameter was monitored in the studies.
Discontinuations The study recorded the rate of discontinuations due to adverse events across the participant groups studied.

Key Studies & References

  1. Assessment of Liver Enzyme Elevation and Hepatotoxicity Risk with Immunomodulator-Anti-inflammatory Combination Therapy

Frequently Asked Questions (FAQ)

Common questions about Acliz Plus (FAQ)

Q: Is Acliz Plus the same as [Competitor Drug Name]?

A: Official drug documents describe Acliz Plus as a fixed-dose combination of two active ingredients: Meclizine Hydrochloride and Pyridoxine Hydrochloride (Vitamin B6). The regulatory status and full composition of other products must be reviewed through their specific official labeling to determine how they differ in their formulation or components. Acliz Plus is defined by this specific dual-component composition.

Q: Is Acliz Plus approved by the FDA?

A: Yes. Combination products containing Meclizine and Pyridoxine have been reviewed by the FDA and are FDA-approved for their labeled uses. Regulatory bodies like the FDA review the evidence before classifying a medicine as approved for specific indications.

Q: How long does it typically take for Acliz Plus to start working?

A: Regulatory documents indicate a time frame for the onset of effect, particularly for preventing motion sickness. Official instructions advise that the dose should be taken one hour prior to travel or the activity causing symptoms. This guidance suggests that the onset of the effect is intended to occur within approximately 60 minutes, which is the timeframe for the initial administration.

Q: How long do the effects of one dose of Acliz Plus last?

A: According to the official dosing regimen for motion sickness, the medicine can be repeated every 24 hours throughout the duration of the journey. This information from regulatory documents indicates that the medicine is administered with a frequency allowing for redosing after a period of about 24 hours, which is the maximum time interval between doses for motion sickness prevention.

Q: How effective is Acliz Plus reported to be in clinical trials?

A: Regulatory documents contain the results of clinical trials that assess the medicine's effectiveness. These studies examine the drug's ability to reduce the severity and frequency of symptoms in participants and assess tolerability. The information describes the trial outcomes and the magnitude of change observed in key endpoints, such as patient-reported symptom scores.

Q: Is Acliz Plus a controlled substance?

A: No. Official governmental drug schedules, such as those maintained by the US DEA, classify Acliz Plus (Meclizine/Pyridoxine) as Not Scheduled. This means it is not designated as a controlled substance.

Q: Is Acliz Plus safe to use for a long time?

A: Official research has investigated long-term administration to examine the stability of the medicine's response over specific periods, such as up to two years in certain studies. Regulatory documents note that evidence regarding the effects beyond the duration of these studies is limited.

Q: What does the research say about long-term use of Acliz Plus?

A: Studies have investigated administration over a period of up to two years, focusing on the stability of the patient response and overall tolerability. The research also monitored key safety parameters, such as changes in liver enzyme levels, during the study period, as described in regulatory documentation.

Q: What should I do if a side effect of Acliz Plus is bothersome?

A: If you experience any side effects from Acliz Plus that you find bothersome or severe, regulatory guidance and patient information materials consistently advise contacting your healthcare professional immediately. This action is consistent with official guidance to address specific health concerns promptly with a professional.

Q: What happens if I miss a day of Acliz Plus?

A: Official guidance on managing a missed dose often states that if a dose is realized to be missed, it may be taken as soon as possible, unless it is close to the time of the next scheduled dose. In that scenario, the standard guidance is to skip the missed dose and return to the normal schedule, avoiding the taking of two doses at once.

Q: Has Acliz Plus been recalled or had any major safety warnings?

A: Official drug information provides a mandatory section on Important Safety Information and Warnings, outlining necessary precautions and contraindications. Information regarding any official recalls is publicly maintained by governmental bodies like the FDA in their dedicated public databases.

Q: Is Acliz Plus addictive?

A: Official drug labels contain specific sections on drug abuse and dependence potential. Regulatory documents do not classify Acliz Plus as a controlled substance, and drug dependence is not listed as a documented risk in the regulatory labeling.

Q: Is Acliz Plus a newer or older medication?

A: Meclizine, one of the primary active components in Acliz Plus, is classified as an established medicine. The component has been approved by the FDA for its intended uses since the mid-20th century.

Q: Are there different strengths of Acliz Plus available?

A: Yes. Regulatory documents specify that the product is available in different strengths, particularly concerning the Meclizine component. Furthermore, the medicine is available in various forms, such as film-coated tablets and chewable tablets, depending on the regulatory region.

Q: Why do some people stop taking Acliz Plus?

A: Clinical trials, which are documented in regulatory materials, record the rate of discontinuations from the study groups. The most common reasons for participants stopping the treatment are typically due to the occurrence of specific adverse events reported during the trial period.

Q: Is there a generic version of Acliz Plus available?

A: Regulatory records, such as the FDA's list of approved drug products, indicate the availability of generic versions of the active components (Meclizine and Pyridoxine) in various dosage forms.

How should Acliz Plus be stored and disposed of?

Official Storage and Disposal Requirements

Acliz Plus (Meclizine/Pyridoxine) must be stored under specific environmental conditions to maintain stability, as required by regulatory authorities.

Storage Conditions

Requirement Details
Temperature Store at controlled room temperature, typically between 20 C and 25 C (68 F to 77 F).
Protection The product must be protected from light, moisture, and excess heat. Do not allow the medicine to freeze.
Container Keep the medication in the original container, tightly closed, and ensure it has a child-resistant closure.

Child Safety and Disposal

The medicine must be stored out of the reach and sight of children. For proper disposal of outdated or unused Acliz Plus, do not flush the tablets down the toilet or throw them into household trash without proper preparation. Patients are directed to use drug take-back programs or consult a healthcare professional for guidance on safe disposal.

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

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