Mebicar

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Mebicar

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Method of action: Anxiolytic

Treatment option:

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 Mebicar

Property Description
Active ingredient Tetramethyltetraazabicyclooctandione (Temgicoluril)
Form Oral Tablets
Pharmacological class Anxiolytic (Minor Tranquilizer), Nootropic, Adaptogen
Common use Relief of anxiety, tension, and emotional instability
Origin Synthetic (bicyclic bis-urea derivative)

Mebicar: Identity, Origin, and Active Ingredient

Mebicar is a synthetic psychotropic drug administered in the form of an oral tablet and used for its stabilizing effects on the nervous system. The active pharmaceutical ingredient is Tetramethyltetraazabicyclooctandione, commonly known as Temgicoluril. This component is a chemically synthesized derivative of the bicyclic bis-ureas class, which positions it distinctly from older sedative compounds. As a single-ingredient product, its primary composition involves the active compound combined with the necessary solid excipients required for the manufacture of the tablet dosage form. The compound is widely recognized in Eastern European pharmaceutical markets for its specific profile.

Pharmacological Classification and Dual Role

Mebicar's primary classification is as an anxiolytic or minor tranquilizer, though it also exhibits significant nootropic and adaptogenic properties. The World Health Organization (WHO) Anatomical Therapeutic Chemical (ATC) system places the substance under the code N06BX21, grouping it with other psychostimulants and nootropics. Clinical observation indicates that this drug can reduce anxiety symptoms and improve cognitive functions in patients experiencing anxiety disorders. This means the medication helps manage feelings of anxiety while supporting mental clarity.

Crucially, Mebicar is specifically differentiated from conventional benzodiazepine tranquilizers because it is clinically recognized for achieving a calming effect without inducing muscle relaxation or causing the marked sedation that impairs functional alertness.

General Purpose and Function

The general purpose of Mebicar is to alleviate feelings of generalized anxiety, persistent inner tension, and emotional irritation related to various stress and neurotic conditions. The mechanism involves the targeted modulation of central nervous system activity, thereby fostering emotional stabilization. The overall benefit is the promotion of inner calm and reduced stress reactivity, supporting individuals in maintaining physical activity and high functional capacity, which is typical for a day tranquilizer profile.

What side effects are possible with Mebicar?

The safety profile of Mebicar (Temgicoluril) is established by regulatory classification, with documented adverse effects classified predominantly within the Rare frequency category. These rare effects are observed in very few patients in clinical use.

Adverse Reaction Categories

System-Organ Class Rare Adverse Reactions
Vascular Disorders Low blood pressure (hypotension)
Nervous System Disorders Dizziness
General Disorders Weakness, low body temperature (hypothermia, potentially decreasing by 1-1.5 C)
Gastrointestinal Disorders General gastrointestinal disturbances
Immune System / Skin Allergic reactions (e.g., skin itch/pruritus)

Allergic reactions are listed as serious adverse events that require the discontinuation of the medicine if they occur. The risk of allergic reactions is noted to be possible after the administration of high doses. Systemic effects like hypotension and hypothermia are generally documented to return to normal after the end of treatment.

Population-Specific Safety Constraints

Official regulatory documentation explicitly states that Mebicar is not recommended for use in women who are pregnant or breast-feeding. Additionally, due to the officially listed potential for hypotension and weakness, the medicine may affect functional capacity, imposing a restriction on activities such as driving a motor vehicle and using machines.

This framework ensures that all officially documented risks, from low-frequency systemic effects to specific constraints for vulnerable populations, are clearly defined within the boundaries of government regulatory standards.

Overdose and Emergency Response

Overdose and When to Seek Help

The following information details the officially documented overdose profile for Mebicar (Temgicoluril) as stated in government regulatory sources.

Overdose Classification Official Regulatory Statements
Documented Manifestations Clinical signs associated with high-dose exposure or acute overdose include drowsiness, fatigue, hypotension (lowered blood pressure), and a potential for hypothermia (decrease in body temperature).
Physiological Systems The documented manifestations indicate effects on the Central Nervous System (CNS) and the Cardiovascular System.
Serious Outcomes Specific, life-threatening complications are not explicitly documented in public official overdose summaries beyond the potential for marked CNS and cardiovascular instability.
Antidote Availability The official regulatory statement is that no specific antidote is known to counteract the effects of Mebicar overdose.

Emergency Actions Mandated by Regulation

Any known or suspected overdose situation requires immediate medical attention. Regulators mandate that professional medical help must be sought promptly due to the potential for significant effects on vital systems.

Management in an overdose scenario is officially limited to symptomatic and supportive treatment. This includes monitoring vital functions, such as blood pressure and body temperature, and providing supportive care until the observed clinical manifestations subside. Hospital monitoring is required for continuous observation of central nervous and cardiovascular status. Population-specific overdose considerations for pediatric, geriatric, or renally/hepatically impaired individuals are not explicitly documented in official overdose sections.

Therapeutic Uses of Mebicar

Mebicar is considered relevant for easing a blend of emotional and functional symptoms. It is applied across domains where additional symptomatic support is needed, addressing conditions presenting with episodic or fluctuating symptom patterns.

Therapeutic Applications and Symptom Relief

Mebicar is commonly used across conditions such as neuroses, generalized anxiety disorders, and states involving autonomic dysfunction. It helps address symptom clusters that may involve chronic inner tension, emotional irritability, mental fatigue, and difficulties with concentration and attention. It is also applied in situations requiring supportive management for the psychoemotional and somatic discomfort associated with nicotine abstinence.

This profile suggests:

“The medication supports a sense of stability and assists with maintaining functional capacity for routine activities.”

The use of this medication contributes to easing the overall symptom load during periods when symptoms are more noticeable. This relief is often sought when symptoms interfere with routine activities, but the patient may maintain alertness and physical coordination.


Quick Fact: Symptomatic Support for Tension and Fatigue

Eligibility and Restrictions for Use

This section outlines the official eligibility and non-eligibility for Mebicar, strictly based on regulatory documents from government sources.

Contraindications and Non-Eligibility

Classification Population/Condition Status
Absolute Contraindication Known hypersensitivity to Mebicar or its excipients Must not use
Age Restriction Children/Adolescents (under 18 years) Not recommended (Safety/Efficacy Not Established)
Physiological State Pregnancy Not recommended (Insufficient clinical data)
Physiological State Lactation (Breastfeeding) Not recommended (Insufficient clinical data)

Populations Requiring Caution

Classification Population/Condition Note
Organ Impairment Renal Impairment (Kidney problems) Caution is advised due to the drug's primary excretion via the urinary pathway.
Organ Impairment Hepatic Impairment (Liver problems) No dose adjustment is typically required based on available data.

Summary: Regulatory labeling dictates that Mebicar is absolutely contraindicated for those with an allergy to the substance. Furthermore, its use is officially not recommended for the pediatric age group, pregnant women, and breastfeeding women, as the efficacy and safety profile has not been established in these populations. Special caution is warranted for individuals with reduced renal function due to the drug's elimination route.

What should I know about interactions with other medicines?

Mebicar's official interaction profile is characterized by its effect on Central Nervous System (CNS) depressant medications and the consumption of alcohol.

Documented Interaction Domains

Product Category Interaction Implication
Neuroleptics, Tranquilizers (e.g., Benzodiazepines) Can be used simultaneously; Mebicar enhances the effect of sleeping medicines and normalizes sleep.
Drugs for Insomnia, Antidepressants, Psychostimulants Can be used simultaneously.
Alcohol (Ethanol) Must be avoided during the entire course of treatment.
General CNS Depressants (e.g., certain sedatives, hypnotics) Increased risk or severity of CNS depression; effects are additive.

Interaction Restrictions and Constraints

Official regulatory information states that the simultaneous use of Mebicar with tranquilizers (such as benzodiazepines), neuroleptics, and various other psychotropic agents is permissible, yet it explicitly notes that Mebicar enhances the effect of sleep-inducing medications. A key restriction is the requirement to avoid alcohol consumption throughout the treatment period to prevent an increase in the severity of CNS depressant activities. The overall profile advises caution when combining Mebicar with any medicine that may increase CNS depression.

Mechanism of Action

Mebicar, a tetramethylglycoluril derivative, modulates neuronal activity primarily by functioning as a partial agonist at GABA-A receptors. This interaction promotes direct binding to specific allosteric sites on the receptor complex, causing a conformational change. The resultant effect is an increased influx of chloride ions, driving the membrane potential toward the equilibrium potential and leading to neuronal hyperpolarization within the central nervous system. Beyond this primary action, Mebicar also interacts with the monoamine systems. Specifically, it influences the turnover and receptor density of serotonin, dopamine, and norepinephrine. This multi-system modulation of both inhibitory (GABAergic) and excitatory (monoaminergic) neurotransmission collectively decreases neuronal excitability in the limbic-reticular system, which in turn exhibits modulatory influence on autonomic regulatory centers.

Dosage and Administration Information

Administration and Usage Parameters

Mebicar (Tetramethyltetraazabicyclooctandione) is designated for oral administration as either 500 mg tablets or 300 mg hard capsules. Standard parameters define its typical intake, frequency, and duration, ensuring use remains within established limits.

Administration and Dosing Schedule

The standard adult dosing is based on a divided daily schedule, typically involving intake two to three times per day. The usual single dose ranges from 300 mg to 500 mg, and the daily total is limited to 10 grams. The medicine is to be taken independently of food intake. Regarding handling, the score line on the 500 mg tablet is intended only to facilitate swallowing and is not to be used to divide the tablet into equal dose portions. If a scheduled administration is missed, the standard approach is to continue with the next dose without doubling the amount.

Course Duration and Population Rules

The use of Mebicar is structured into defined courses. General treatment may last from a few days up to two to three months. Protocols for specific indications, such as supportive management during nicotine abstinence, typically involve a five to six-week course. Usage parameters for specific groups include a non-recommendation for individuals under 18 years of age. Furthermore, it is noted that no dose adjustment is required for older adults or those with hepatic impairment.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Mebicar

The research on Mebicar (Temgicoluril) primarily originates from clinical studies conducted in regions where the medication is available, such as Eastern Europe. This research contributes to the broader evidence landscape but has generally not undergone systematic review by major international regulatory bodies like the U.S. Food and Drug Administration (FDA) or the European Medicines Agency (EMA).


Evidence for Use in Anxiety and Autonomic Dysfunction

The research examined Mebicar in conditions characterized by internal tension and emotional instability, often in patients also reporting physical symptoms related to autonomic dysfunction.

What researchers studied: The research base includes non-comparative, open-label clinical studies and observational reports, used to explore how symptoms change over time within observed populations. Study outcomes examined changes in the severity of anxiety symptoms using standardized rating scales, and studies also monitored outcomes related to systemic or functional imbalance, such as the degree of autonomic dysfunction. The study populations were typically adult patients diagnosed with an anxiety disorder.

What remains uncertain: The certainty remains low due to the design of much of the available research, which often features small, non-comparative patient groups. Comparative evidence is lacking; the evidence does not clearly show how Mebicar's measured effects compare against a non-active placebo pill or against standard anxiety treatments, as these comparisons were not the focus of the primary studies. The results apply only to the specific populations studied, and data are still emerging.


Study Duration and Long-Term Research Gaps

The available clinical studies for Mebicar typically focused on defined, short-term follow-up durations, often tied to the length of a single course of treatment, such as 3 months. This limited information means that long-term effects are not fully established. Research provides insight into short-term changes, but there is limited information for long-term outcomes, such as the durability of measured response or the patterns of effect when Mebicar is used over extended periods.

Evidence Consistency and Scientific Uncertainty

The evidence base for Mebicar primarily consists of research conducted under non-comparative or open-label designs. This means the evidence quality varies across studies, and comparative evidence is lacking. Study results reflect the specific conditions under which they were conducted and research does not determine whether an individual will respond similarly, as findings describe group patterns, not personal outcomes. The limitations, including modest sample sizes and limited follow-up durations, mean that significant scientific uncertainty remains regarding the certainty of the findings.

Key Studies & References Temgicoluril (Mebicar) ATC code (N06BX21) - WHO ATC/DDD Index

Frequently Asked Questions (FAQ)

Common questions about Mebicar (FAQ)

Q: Where is Mebicar primarily eliminated from the body?

Official product information indicates that Mebicar is eliminated mainly by the kidneys, which are the body's primary filters. A significant portion of the administered dose, typically between 55% to 70%, is reported to be excreted from the body through the urine.

Q: How quickly does Mebicar start working after I take a dose?

According to regulatory pharmacokinetic data, the active substance of Mebicar can be detected in the bloodstream approximately 10 minutes following administration. The concentration in the blood reaches its highest level (peak plasma concentration) within 30 to 60 minutes.

Q: If I take Mebicar, will I have problems driving a car or using heavy equipment?

Regulatory information advises caution regarding certain activities. Due to the documented potential for side effects like weakness and low blood pressure (hypotension), the medicine may impair a person's ability to drive a motor vehicle or safely operate heavy machinery. Patients experiencing these effects are typically advised to avoid activities that require full attention.

Q: Does Mebicar make you feel tired or sleepy like other tranquilizers?

The official product information suggests that Mebicar is known to provide a calming effect without causing marked sedation (sleepiness) or muscle relaxation, which is often associated with conventional tranquilizers. However, the potential for weakness means caution is generally advised for activities that require full concentration.

Q: Does Mebicar interact with other medications I take for sleep or depression?

According to regulatory interaction data, Mebicar can be used simultaneously with medicines for insomnia, neuroleptics, or antidepressants. It is specifically noted, however, that Mebicar may enhance the effect of certain sleep-inducing medications.

How should Mebicar be stored and disposed of?

How to Store and Dispose of Mebicar

Proper storage and disposal of Mebicar are essential to maintain the drug's quality and ensure public safety.

Storage and Handling

All prescription medications, including Mebicar, must be stored according to the specific instructions provided on the product label or the official drug compendium. If no explicit temperature is stated, the drug may be stored at controlled room temperature (typically 20 C to 25 C).

Storage must occur under appropriate conditions to protect the medication from factors like light, moisture, or extreme heat, as specified by the manufacturer. Keep the medication in its original container and secure from unauthorized access. Facilities where the drug is held must be clean, orderly, and secure.

Disposal

When Mebicar is no longer needed or has expired, disposal must follow the instructions detailed in the product labeling. Medications should be discarded in accordance with all applicable federal and state regulations governing pharmaceutical and medical waste management.

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

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