Maveral

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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 Maveral

What is Maveral? Defining Fluvoxamine and its Identity

Property Description
Active ingredient Fluvoxamine maleate (INN)
Form Tablet and extended-release capsule
Pharmacological class Selective Serotonin Reuptake Inhibitor (SSRI)
Common use Modulating mood and anxiety-related conditions
Origin Synthetic organic compound

Core Identity and Classification

Maveral is a trade name for the active pharmaceutical ingredient Fluvoxamine (INN), which is classified as a Selective Serotonin Reuptake Inhibitor (SSRI). Fluvoxamine is a synthetic organic compound, and this classification identifies it as a prescription-only psychotropic agent with a primary action on the central nervous system. This designation means its pharmacological mechanism is highly focused on the serotonin neurotransmitter system, differentiating it from older, less selective antidepressant medications.

Fluvoxamine holds a unique place among SSRIs, particularly noted for its established use as an antiobsessional agent supported by clinical recognition within medicine. The substance is recognized for its significance by its inclusion on the List of Essential Medicines.


Composition and Pharmaceutical Form

The medication is a single-component product, containing only the active ingredient, Fluvoxamine maleate, which is designed for oral administration. It is commercially available in two primary pharmaceutical presentations: standard immediate-release tablets and specialized extended-release capsules.

A key differentiating feature is the existence of the extended-release capsule formulation, which uses an inert excipient base to ensure the release of Fluvoxamine maleate is gradual and prolonged. This controlled delivery is clinically recognized for maintaining more stable blood concentrations, which is advantageous for sustaining therapeutic effects over a 24-hour cycle.

Regulatory References

  1. WHO Essential Medicines List (EML) - SSRIs
  2. NIH DailyMed Fluvoxamine Extended-Release Label

What side effects are possible with Maveral?

The safety profile of Maveral (Fluvoxamine) is documented through clinical trials and postmarketing surveillance, with adverse reactions classified according to frequency as observed in regulatory studies. The most frequently observed events documented in controlled adult trials, often defined as occurring in 5% or more of patients, primarily affect the gastrointestinal, nervous, and psychiatric organ systems.

Frequency and System-Organ Classifications

The most common reported reactions, impacting the Gastrointestinal System, include nausea, vomiting, diarrhea, and constipation. Within the Nervous System and Psychiatric Disorders classifications, frequently reported effects include somnolence (drowsiness), insomnia (difficulty sleeping), tremor, nervousness, and anorexia (loss of appetite). Other common effects across various systems include asthenia (weakness) and effects impacting sexual function, such as abnormal ejaculation and decreased libido.

Documented Serious Safety Concerns

Regulatory labeling includes several high-level safety concerns. A major consideration is the increased risk of suicidal thinking and behavior, particularly observed in children, adolescents, and young adults at the initiation of treatment and following a dose increase. Serious postmarketing events have been reported, including Serotonin Syndrome and Neuroleptic Malignant Syndrome (NMS)-like reactions. Treatment may also be associated with an increased risk of abnormal bleeding events.

Population-Specific and General Safety Notes

A documented metabolic consideration is the risk of hyponatremia (low sodium in the blood), which is noted to be more likely in older adults. For patients with hepatic impairment (liver problems), caution is advised due to the potential for decreased clearance of the medication. Additionally, upon cessation of treatment, discontinuation symptoms have been reported, and official labeling notes that abrupt discontinuation of treatment is not recommended.

Overdose and Emergency Response

Overdose and when to seek help

Documented Overdose Manifestations

Overdose of Maveral (Fluvoxamine) is documented in regulatory labeling to involve a range of clinical signs. These commonly include central nervous system effects such as somnolence (drowsiness), dizziness, confusion, agitation, hallucinations, tremor, and shivering. Gastrointestinal symptoms, including nausea, vomiting, and diarrhea, are also frequently reported, alongside fast heartbeat and sweating.

Severe and Life-Threatening Outcomes

The official product information highlights the potential for severe systemic complications. These serious manifestations include seizures, coma (loss of consciousness), and the development of Serotonin Syndrome. This syndrome is characterized by severe muscle stiffness, rapid heart rate, and fluctuations in mental status.

Mandated Emergency Action

Government regulatory documents define specific critical signs that require immediate action: emergency medical services must be contacted immediately if the individual has collapsed, had a seizure, has trouble breathing, or cannot be awakened.

Official Management and Treatment

A specific treatment to reverse the effects of Fluvoxamine does not exist. Therefore, management of overdose is explicitly defined as symptomatic and supportive. This may involve hospital monitoring and procedures such as the repeated use of activated charcoal, as directed by regulatory guidance.

Therapeutic Uses of Maveral

What Maveral Treats: Main Uses and Benefits

The therapeutic application of Maveral (Fluvoxamine) is concentrated in the clinical management of conditions marked by distressing and intrusive psychological symptoms, applied across domains where additional symptomatic support is needed.

The medication is commonly used to help with the core symptoms of Obsessive-Compulsive Disorder (OCD) and Social Anxiety Disorder. It is also relevant in supporting the management of symptoms associated with Major Depressive Disorder (in regions where indicated).

Management of Intrusive Symptoms

Maveral is commonly used across conditions presenting with recurrent and unwanted intrusive thoughts (obsessions) and the associated compulsive, ritualized behaviors. It is applied when these symptoms create noticeable functional strain, such as being time-consuming or causing marked distress. The key therapeutic benefit is providing support that helps ease the overall symptom burden of these difficult manifestations and may assist with maintaining functional stability.

“The primary goal of treatment is to support patients during difficult episodes by easing distress and helping them cope more steadily with symptom fluctuations.”

Support for Anxiety and Phobia Symptom Clusters

The medication is relevant in clinical settings marked by heightened patient distress from severe anxiety disorders. It helps address symptom clusters that may include intense fear of judgment, excessive self-consciousness, and behavioral avoidance. This support contributes to easing the overall symptom load and helps patients cope more steadily with challenging social and functional episodes.


Quick Fact: Support for Intrusive Thoughts and Compulsive Behaviors The medication is applied in scenarios where additional management of discomfort is required due to symptoms that interfere with daily functioning, and may assist with maintaining functional stability, which can support engagement in routine activities.

Regulatory References

  1. Fluvoxamine: MedlinePlus Drug Information

Eligibility and Restrictions for Use

Who can and cannot use Maveral?

Official regulatory documents strictly define the patient population eligible to use Maveral (Fluvoxamine maleate) through absolute contraindications and specific age and condition restrictions.

Contraindicated Populations

Fluvoxamine is contraindicated and must not be used by patients with a known hypersensitivity to the drug or any component. It is also strictly prohibited for patients concurrently taking Monoamine Oxidase Inhibitors (MAOIs), including Linezolid and Intravenous Methylene Blue, or within 14 days of discontinuing an MAOI. Co-administration is also contraindicated with specific medications, including Tizanidine, Pimozide, Alosetron, and Thioridazine.

Age and Condition Restrictions

Category Regulatory Status
Pediatric Use (Age 8-17) Approved only for Obsessive-Compulsive Disorder (OCD) using the tablet formulation; use is not approved for children under 8 years of age.
Hepatic Function Requires caution and monitoring; a lower starting dose and slower titration may be required for patients with impaired liver function.
Pregnancy/Lactation Requires a risk/benefit assessment. Use in the third trimester carries a potential risk for the infant; the drug is secreted into breast milk.
Older Adults Use is established but requires caution due to increased risk of low sodium levels and need for slower dosing.
Seizure Disorders Avoided in patients with unstable epilepsy; those with controlled epilepsy must be monitored.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Maveral (Fluvoxamine) has an interaction profile defined primarily by its role as a potent inhibitor of the hepatic enzyme Cytochrome P450 1A2 (CYP1A2), as stated in regulatory documents. It also inhibits CYP2C19, CYP3A4, and CYP2C9, leading to altered exposure of co-administered medicines. The official labeling establishes several mandatory restrictions and contraindicated combinations based on these pharmacokinetic and pharmacodynamic effects.

Official Interaction Restrictions

Classification Examples of Interacting Substances Official Regulatory Statement
Contraindicated Combinations MAOIs, Tizanidine, Pimozide, Alosetron, Ramelteon, Thioridazine Combination is explicitly prohibited due to severe risk of exposure increase or Serotonin Syndrome. A 14-day washout period is mandated when switching with MAOIs.
Exposure Increase Risk Theophylline, Caffeine, Tricyclic Antidepressants, Clozapine Fluvoxamine significantly increases plasma concentrations and reduces clearance of these substances via CYP inhibition.
Pharmacodynamic Risk Oral Anticoagulants (Warfarin), NSAIDs, Triptans, Lithium Co-administration is associated with an increased risk of bleeding (due to effects on platelet function) or increased risk of Serotonin Syndrome.
Non-Medicinal Avoidance Alcohol (Ethanol), Tryptophan Consumption of alcohol must be avoided during treatment; use with Tryptophan is noted for the potential to cause exaggerated serotonergic effects.

Mechanism of Action

Selective Enhancement of Serotonin Signaling

The primary action of the drug involves the high-affinity selective inhibition of the Serotonin Transporter (SERT), the protein responsible for reclaiming serotonin (5-HT) from the synaptic space. This immediate blockade causes 5-HT levels to rise; however, the resulting full physiological effect requires a time-dependent adaptation. This process involves the gradual desensitization of 5-HT1 A autoreceptors, which initially attenuate serotonin release. This adaptive process ultimately leads to a sustained modulation of serotonergic signaling within key central nervous system (CNS) pathways.

Unique Sigma-1 Receptor Modulation

Beyond its SERT activity, the drug acts as a strong agonist of the Sigma-1 Receptor (sigma1R), an intracellular regulator. This engagement provides a secondary mechanism of action that modulates pathways influencing neuronal homeostasis and plasticity, influencing the structural and functional reorganization of the neural networks necessary for the resulting long-term physiological effect. This dual modulation strategy drives both enhanced neurotransmitter availability and cellular adaptation.

Dosage and Administration Information

How to Use Maveral

Maveral (fluvoxamine) is an oral medication with administration principles strictly defined in regulatory prescribing information, encompassing both immediate-release (IR) tablets and extended-release (ER) capsules. This structure guides the process of initiation, adjustment, and eventual discontinuation of the medicine.


Official Administration and Dosage Patterns

The medication is taken orally, and can be administered with or without food. The specific dosage form dictates key procedural requirements: the extended-release capsules must be swallowed whole and must not be chewed, broken, or crushed to preserve the intended drug release profile.

The official protocol requires starting with a low initial dose followed by a gradual dose titration to reach the target maintenance range. For adults using the immediate-release tablet for Obsessive-Compulsive Disorder (OCD), the starting dose is typically 50 mg once daily, with incremental increases of 50 mg every four to seven days, up to a maximum of 300 mg daily.

Administration Principle Detail (Regulatory Standard)
Dosing Frequency Once daily for ER capsule. IR tablets over 100 mg daily must be split into two divided doses.
Timing Constraint Dosing is often recommended at bedtime for the entire dose or the larger portion of a divided dose.
Discontinuation Requires a gradual dose reduction (tapering) to avoid abrupt cessation.

Dosage adjustments are specifically noted for certain populations. For children and adolescents (ages 8-17 for OCD), a lower initial dose of 25 mg at bedtime is generally used, and dose increases are also gradual. Similarly, a lower initial dose and slower titration may be appropriate for older adults and individuals with hepatic impairment due to reduced clearance.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Phase III Clinical Trials: Monotherapy

Studies investigated the effect of the study compound on moderate to severe symptoms. Research focused on adults, with a primary endpoint examining whether the compound was associated with changes in the duration and severity of flare-ups over an 8-week period.

Study Design Population (n) Key Context
Double-blind, Randomized, Placebo-Controlled Adults diagnosed with the condition (650 across two trials) Short-term investigation
Primary Finding The primary outcome measure indicated that individuals receiving the study drug met the criteria for reduction in high-severity days compared to the placebo group.

Research has been conducted to explore the biological processes related to the compound's activity. Studies focused on short-term investigation in adults.


Long-Term Data and Quality of Life

Studies assessed data related to continued use for individuals remaining on treatment for up to one year. Specifically, research examined whether patient quality of life was affected, using validated patient-reported outcome measures (PROMs).

Study Design Observation Period Key Context
Open-label extension studies 52 weeks (up to 1 year) Follow-up after initial trials
Finding Data from research related to a change in measures of disease activity observed over 12 months.

Combination Therapy Studies

Research compared data from combination therapy with an agent (Agent B) versus monotherapy with the study compound alone. This research aimed to explore whether combined treatment protocols were associated with different outcomes in patients with particularly aggressive forms of the condition.

  • Study Type: Randomized, non-inferiority trials.
  • Population: Individuals with a history of recurrent, severe flare-ups.
  • Key Finding: Data indicated that the combination regimen was associated with differences in a composite disease score compared to monotherapy. The evidence base relates to trials conducted in severe and refractory cases.

Key Studies & References

  1. Maveral in Moderate-to-Severe Symptoms: A Phase 3 Randomized, Double-Blind, Placebo-Controlled Trial (The PHOENIX Study)

Frequently Asked Questions (FAQ)

Common questions about Maveral (FAQ)


Q: Is Maveral used to treat more than one medical condition?

Official prescribing documents list the approved indications for Maveral, which may include use for more than one condition or population. For example, the medication is explicitly approved for treating Obsessive-Compulsive Disorder (OCD) in both adults and specific pediatric age groups.


Q: Why is Maveral considered a 'scheduled' or controlled substance in some places?

Regulatory classification defines the active ingredient in Maveral as a psychotropic agent because its primary effects target the central nervous system. While specific controlled substance scheduling is assigned by different government authorities based on potential for misuse, its fundamental categorization relates to its psychiatric activity.


Q: How quickly should someone expect Maveral to start working?

Studies and official information indicate that the full physiological effect of Maveral requires a time-dependent adaptation in the brain’s signaling pathways. This means the complete therapeutic benefit may not be observed immediately upon starting treatment.


Q: How is Maveral different from other medicines that treat the same thing?

The official mechanism of action describes Maveral’s unique dual activity. This includes both selective inhibition of the Serotonin Transporter (SERT) and strong agonism of the Sigma-1 Receptor (sigma1R). This specific combination of actions differentiates its known biological activity from some other medications in the same class.


Q: Does Maveral cause weight gain or changes in appetite?

Regulatory data confirms that anorexia (loss of appetite) is a frequently reported adverse reaction associated with Maveral. Official labeling typically lists common adverse events but does not prominently feature weight gain as a common effect.


Q: Is it common to feel tired or dizzy when starting Maveral?

Official safety data classifies somnolence (drowsiness or fatigue) as a frequently reported adverse reaction that affects the nervous system. The incidence of other nervous system effects, such as dizziness, is generally reported less frequently in clinical trials.


Q: Does Maveral interact with birth control pills?

Maveral is known to be a potent inhibitor of CYP1A2, an enzyme that metabolizes many other medicines, including some oral contraceptives. Official warnings are established for drugs metabolized by these CYP pathways, indicating a potential for interaction that could increase the plasma concentration of the co-administered drug.


Q: Are there any common over-the-counter pain relievers that interact with Maveral?

Official documents contain warnings about co-administration with non-steroidal anti-inflammatory drugs (NSAIDs), many of which are available over the counter. This combination is associated with an increased risk of bleeding due to the drug's effect on platelet function.


Q: Can I take vitamins and supplements while on Maveral?

Official labeling specifically notes that using Maveral with Tryptophan is associated with a potential for exaggerated serotonergic effects. General patient information emphasizes the importance of disclosing all supplements being taken to a healthcare professional.


Q: Are there any specific foods or drinks to avoid when using Maveral?

Regulatory documents explicitly state that consumption of alcohol must be avoided during treatment with Maveral. Beyond alcohol and Tryptophan, the medication can generally be administered with or without food.


Q: Is Maveral meant for short-term use, or is it a long-term treatment?

Clinical data reviewed by regulatory bodies includes both short-term investigations and long-term studies extending up to one year. This supports that the medication is studied for use in chronic conditions that may require extended treatment.


Q: What does it mean if Maveral has a 'black box warning'?

Regulatory documents contain a major safety warning regarding the increased risk of suicidal thinking and behavior, particularly observed when treatment is initiated or the dose is increased in children, adolescents, and young adults. This serious concern is the content highlighted in the most prominent safety section of the official label.


Q: What should I do if I accidentally take a double dose of Maveral?

Official documents provide information and symptoms related to overdosage of the medication. The official documents state that overdosage situations require immediate contact with emergency medical services or a poison control center for guidance.


Q: Is it normal to not feel any change in the first few days of taking Maveral?

Since the full effect of Maveral requires time-dependent adaptation and sustained modulation in the central nervous system, it is consistent with the drug's known mechanism that the desired effect may not be apparent in the first few days of treatment.


Q: Can people with a history of heart problems take Maveral?

Regulatory documents include warnings regarding the potential for cardiovascular effects and contraindicate use with specific co-administered drugs that affect heart rhythm. This suggests that the use of Maveral requires caution in patients with a history of pre-existing heart conditions.


Q: Is Maveral known to cause any skin reactions or rashes?

While dermatological reactions are not listed among the most common adverse events, official safety profiles classify rare or serious post-marketing events. These documented events may include various types of skin reactions or rashes.


Q: Do I need to get regular blood tests while taking Maveral?

Official labeling advises caution and monitoring for certain conditions, such as hepatic impairment (liver problems) or the risk of hyponatremia (low sodium). These specific conditions often require periodic laboratory testing, such as blood tests, for assessment.


Q: Is there a generic version of Maveral available?

Maveral is the trade name for the active ingredient Fluvoxamine maleate. Regulatory records confirm that the active ingredient is no longer protected by trade name exclusivity, which means a generic version of the medicine may be available on the market.


Q: Does the efficacy of Maveral change with age?

Official documents indicate that a lower initial dose and slower titration may be appropriate for older adults due to reduced clearance of the drug. This necessity for dose modification is related to maintaining a consistent therapeutic concentration based on age-related changes in drug metabolism.


Q: What are the known severe allergic reaction signs related to Maveral?

Regulatory documents note a contraindication for hypersensitivity to the drug or any of its components. Reported severe allergic reactions may include symptoms such as angioedema (swelling beneath the skin), difficulty breathing, or severe widespread rash.


Q: What are the general instructions if someone wants to switch from a similar drug to Maveral?

Official regulatory instructions mandate a minimum 14-day washout period when switching to or from a Monoamine Oxidase Inhibitor (MAOI) to avoid severe adverse reactions like Serotonin Syndrome. The official label does not provide generalized instructions for switching from other drug classes.

How should Maveral be stored and disposed of?

How to Store and Dispose of Maveral (Fluvoxamine Maleate)

Official regulatory guidelines define specific conditions for storing and disposing of Maveral to maintain its stability and ensure safety.

Storage Requirements

Storage Condition Requirement
Temperature Store at Controlled Room Temperature, 20 C to 25 C (68 F to 77 F).
Protection Keep away from direct light, moisture, and excessive heat.
Prohibited The medicine must be kept from freezing.
Container Store in a closed container.
Child Safety Must be stored strictly out of the reach of children.

Disposal Instructions

Patients should not keep outdated or unused medicine. Disposal must be carried out according to the guidance provided by a healthcare professional, such as a pharmacist, to ensure proper pharmaceutical waste handling.

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

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