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Амизол

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Амизол

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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 Амизол

Property Description
Active ingredient Amitriptyline hydrochloride
Form Tablets (oral) and Solution for injection (parenteral)
Pharmacological class Tricyclic Antidepressant (TCA)
Origin Synthetic (Dibenzocycloheptadiene derivative)
General purpose Neural function modulation and persistent discomfort management

What Type of Medicine is Амизол (Amitriptyline)?

Амизол is a pharmaceutical preparation containing the active substance Amitriptyline, which is definitively classified as a Tricyclic Antidepressant (TCA). This medication is a recognized member of the psychotropic agents class because its primary function involves purposeful influence on the central nervous system. Amitriptyline is a synthetic compound, chemically identified as a Dibenzocycloheptadiene derivative, which places it within a specific family of organic structures. This medicine works by increasing amounts of certain natural substances in the brain that are necessary to help maintain mental balance, a property that is clinically recognized for its therapeutic applications.

Composition and Available Forms of Амизол

The core chemical entity in this single-ingredient product is Amitriptyline hydrochloride. Амизол is available in several dosage forms to accommodate different patient needs. The common forms include tablets, such as film-coated tablets, which are used for the oral route of administration. For specialized or rapid-action requirements, the medication is also supplied as a sterile solution for injection, allowing for parenteral delivery. The consistent use of Amitriptyline hydrochloride as the sole active substance defines the preparation's chemical structure across all its presentations, positioning it distinctly as a monopreparation.

General Purpose and Mechanism Profile

The general therapeutic purpose of Амизол is to act as a central nervous system modulator. This is primarily achieved through its Non-selective monoamine reuptake inhibitor (NSRI) profile, which affects the balance of neurotransmitters like serotonin and norepinephrine. By regulating the availability of these key messengers, the drug generally helps to stabilize an individual's emotional state. The analgesic properties of Amitriptyline have been investigated in relation to pain-related conditions, highlighting its capability for systematic neural stabilization and chronic discomfort management, offering a typical, dual-purpose profile for patients requiring both mood support and nerve signal modulation.

Regulatory References

  1. MedlinePlus Drug Information
  2. NIH MedlinePlus
  3. NCBI Bookshelf
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What side effects are possible with Амизол?

Possible side effects and safety information

The official safety information for Amitriptyline (Амизол), a Tricyclic Antidepressant, categorizes possible effects based on regulatory frequency and the body system affected. These classifications ensure that risks are communicated in a neutral, structured manner as defined by government health authorities.

Commonly Documented Adverse Reactions

Adverse reactions that are classified as Very Common (ge 1/10) in official documents often relate to the drug's anticholinergic and sedative properties. These include dry mouth, constipation, nausea, tremor, sedation, dizziness, headache, orthostatic hypotension (blood pressure drop upon standing), and weight increase. Common (ge 1/100 to < 1/10) reactions include anxiety, insomnia, aggression, and confusion. Side effects are often noted as being more pronounced at the beginning of treatment.

System-Organ Classes and Serious Safety Considerations

The officially listed adverse reactions involve several systems, notably the Nervous System, Psychiatric Disorders, Cardiac Disorders, and Gastrointestinal System. Serious adverse reactions are specifically highlighted in regulatory labeling, including a Boxed Warning regarding the increased risk of suicidal thoughts and behavior in young adults (up to 24 years old) at the start of therapy. Rare but critical risks include severe cardiac events (e.g., arrhythmias, heart block), bone marrow depression, and the risk of developing Serotonin Syndrome when co-administered with other specific medicines.

Population-Specific Safety Notes

Safety considerations are officially documented for certain patient groups. Older adults are known to be more susceptible to anticholinergic effects, confusion, and dizziness. Additionally, the drug is formally restricted, or contraindicated, for use in the acute recovery phase following a myocardial infarction (heart attack) and for patients with severe liver disease.

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Overdose and Emergency Response

The official regulatory profile for an overdose of Амизол details specific clinical manifestations and requires immediate emergency action due to the potential for severe, life-threatening outcomes.

Overdose Manifestations Severe Outcomes and Risks
CNS/Anticholinergic: Drowsiness, confusion, agitation, hallucinations, seizures, and progression to coma. Signs include dilated pupils and urinary retention. Cardiovascular: Ventricular arrhythmias, severe hypotension, QRS complex widening, and fatal arrhythmia. Systemic: Metabolic acidosis, respiratory arrest, and shock.

When Immediate Medical Help is Required:

Regulatory guidance mandates that individuals must seek immediate medical attention or contact emergency services at once if an overdose is suspected. Hospital monitoring is required as soon as possible, regardless of initial presentation, given the potential for rapid toxicity. Ingestion of 750 mg or more by an adult is associated with severe toxicity risk.

Official Management and Monitoring:

Treatment is classified as strictly symptomatic and supportive. There is no specific antidote listed in regulatory documents. Supportive measures include securing the airway, administering activated charcoal, and the use of continuous ECG-monitoring for 3 to 5 days, even in cases that appear initially uncomplicated. Children are explicitly cited as being especially susceptible to cardiac toxicity and seizures.

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Therapeutic Uses of Амизол

What Амизол Treats: Main Uses and Benefits

The medication is applied across domains where additional symptomatic support is needed for both mood-related and chronic pain issues. It is commonly used to help manage Major Depressive Disorder, various forms of neuropathic pain, and to prevent recurrent headaches.


Core Therapeutic Focus

This medication is applied in clinical settings that involve persistent low mood, nerve-related discomfort, and symptoms that interfere with daily functioning. It is considered relevant for easing groups of symptoms that may become intense or disruptive, such as the burning and stabbing sensations of nerve pain, the pervasive fatigue of fibromyalgia, and the sleep disturbances associated with mood disorders. For patients experiencing severe, cyclical head pain, such as Migraine and Chronic Tension-Type Headache, it is generally used as a preventative measure.

“The primary benefit is often achieved by supporting the patient during episodes of heightened discomfort and contributing to improved day-to-day comfort.”


Quick Fact: Relief for Chronic Pain and Mood Symptoms

The key benefit is that it contributes to easing the overall symptom load in conditions where multiple symptoms occur together, supporting general well-being and assisting with maintaining a sense of stability when symptoms are more noticeable.

Regulatory References

  1. Amitriptyline: MedlinePlus Drug Information
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Eligibility and Restrictions for Use

Who Can and Cannot Use Амизол (Amitriptyline)

The eligibility for using Amitriptyline is strictly governed by regulatory documentation, outlining populations who must not use the medicine and those who require conditional use.


Absolute Contraindications

Use of Амизол is strictly prohibited (contraindicated) for individuals with a history of recent myocardial infarction (MI), severe liver disease, or pre-existing heart conduction disorders (e.g., heart block). The medicine is also contraindicated for any patient with known hypersensitivity to the drug or who is concurrently receiving, or has recently stopped (within 14 days), a Monoamine Oxidase Inhibitor (MAOI).


Age-Specific Eligibility

Age Group Eligibility Status Regulatory Requirement
Under 6 years Contraindicated Prohibited for any use.
Under 18 years Not Recommended General use lacks established long-term safety and efficacy.
Aged 65 and over Conditional Use Requires cautious dose selection due to increased sensitivity.

Restrictions and Conditions

Use requires caution in patients with a history of conditions sensitive to the drug's anticholinergic effects, such as angle-closure glaucoma, urinary retention, or prostatic hypertrophy. For pregnancy, use is conditional (FDA Category C), permitted only if the maternal benefit outweighs the fetal risk. The drug is not approved for treating bipolar depression.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

The official interaction profile for Amitriptyline (Амизол) includes mandatory prohibitions and documented alterations in drug exposure and activity, strictly as defined in government regulatory sources. These interactions are categorized based on their mechanism and resulting clinical restrictions.


Contraindicated Combinations and Timing Restrictions

Co-administration with Monoamine Oxidase Inhibitors (MAOIs) is formally prohibited and requires a minimum 14-day washout period when switching between the two drug classes. The combination with Cisapride or Thioridazine is also contraindicated due to the documented risk of QT interval prolongation.


Pharmacokinetic and Pharmacodynamic Interactions

The interaction profile details agents that cause Metabolic Clearance Alteration. For instance, co-administration with strong CYP2D6 inhibitors (e.g., Fluoxetine) results in a pharmacokinetic interaction that significantly increases the plasma concentration of Amitriptyline due to reduced clearance. Conversely, CYP inducers (e.g., Carbamazepine) increase metabolism, leading to reduced drug exposure.

Pharmacodynamic Interactions are documented with substances that have additive effects. Central Nervous System (CNS) Depressants (including alcohol) lead to enhanced sedation. The combination with other serotonergic agents increases the risk of Serotonin Syndrome. Regulatory information notes that elderly patients may have increased susceptibility to these pharmacokinetic interactions.

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Mechanism of Action

Амизол (Amisulpride) functions as a selective dopamine D2 and D3 receptor antagonist, exhibiting a dose-dependent mechanism of action, with preferential binding to receptors in the limbic system over the striatum. At lower concentrations, the molecule preferentially occupies presynaptic dopamine D2/D3 autoreceptors. This antagonistic interaction reduces the autoinhibitory feedback mechanism on dopaminergic neurons, leading to a subsequent increase in dopamine release into the synaptic cleft. The enhanced synaptic dopamine concentration modulates postsynaptic signaling, leading to a net increase in dopaminergic neurotransmission. Conversely, at higher concentrations, the molecule primarily occupies postsynaptic dopamine D2 and D3 receptors. This antagonism directly inhibits excessive dopaminergic signaling in the mesolimbic pathway, thereby reducing intracellular signaling cascades initiated by dopamine binding. A secondary interaction involves antagonism at the serotonin 5-HT7 receptor. The overall systemic physiological consequence involves the differential modulation of central dopaminergic activity based on concentration.

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Dosage and Administration Information

Official Administration Guidelines for Amitriptyline (Амизол)

Instruction Detail
Route of administration Primarily Oral (tablets); a Parenteral (Intramuscular/IM) route is available for short-term initial use.
Dosing schedule Treatment must start at a low dose and be gradually increased (titrated). Adult starting doses are typically 25 mg to 75 mg daily, with a usual maintenance dose of 50 mg to 150 mg daily. Hospitalized patients may be titrated up to a maximum of 300 mg daily.
Timing in relation to meals Can be taken with or without food.
Age-group administration rules Older Adults (Geriatric): Requires a lower starting dose (e.g., 10 mg to 25 mg daily) and slower titration; maximum doses are generally lower (e.g., doses above 75 mg or 100 mg should be used with caution). Hepatic impairment requires careful dosing.
Missed-dose rules If a dose is missed and it is almost time for the next scheduled dose, the missed dose should be skipped to prevent doubling the next administration.

Resulting Procedural Structure

Standard procedure establishes a sequence for using the medicine. Treatment is initiated at a low dose and gradually adjusted over several days or weeks until the maintenance dose is achieved, which should be the lowest dose that maintains relief. The total daily dose is frequently administered once daily at bedtime to align with the pharmacological properties of the medication. Use is generally considered long-term, and the dose must be gradually reduced (tapered) before discontinuation as part of a standard discontinuation process. This structure defines the approach to administration.

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Recent Clinical Evidence

Research Evidence / Overview of Studies for Амизол

This overview summarizes the available research and the types of clinical studies that have explored the use of the active substance in Амизол (Amitriptyline), focusing only on the official record of clinical evaluation. It is not intended to offer advice or instructions.


Evidence for Use in Major Depressive Disorder

Research has primarily focused on the use of this substance in adults experiencing Major Depressive Disorder (MDD). The evaluation has involved short-term Randomized Controlled Trials (RCTs) and Systematic Reviews that were used in research exploring symptom patterns in this condition. Studies monitored outcomes related to systemic or functional imbalance by measuring changes in standard symptom rating scales.

The findings describe patterns observed in the studies, where the substance was observed in trials alongside newer medications, often serving as an older standard compound. A noted observation in the evidence is the frequent pattern of participants needing to discontinue treatment, which studies associated with issues leading to discontinuation.

Evidence for Use in Chronic Nerve-Related Pain (Neuropathic Pain)

For evaluating outcomes related to nerve-related pain (such as Painful Diabetic Neuropathy (PDN)), the evidence landscape includes Systematic Reviews based on many older Controlled Trials. These studies explored outcomes related to physical discomfort by focusing on the changes measured on pain intensity scales and the impact on sleep disturbance.

Scientific analysis indicates that the degree of change measured in research settings appears to be modest, and these findings were observed in some studies involving only a subset of the participants. The evidence quality varies across studies, with many older trials noted as having small sample sizes and methodological issues.

Evidence for Use in Fibromyalgia and Migraine Prevention

The substance was evaluated in short-term RCTs for symptoms associated with fibromyalgia. Research examined outcomes related to systemic or functional imbalance, such as changes in overall pain, fatigue levels, and sleep quality. In the context of evaluating episodic changes in migraine, research was studied for intermediate-term Controlled Trials that monitored outcomes by measuring the measured change in episode frequency per month.

Long-Term Studies and Evidence Gaps

Follow-up durations were limited in many of the key trials across all indications. There is limited information for long-term outcomes and the sustained duration of any observed effect is not fully established by the existing high-quality evidence base. More research is needed to fully characterize long-term outcomes when the substance is used over many months or years.

Key Studies & References

  1. Low-dose amitriptyline for preventing migraine in adults: a systematic review and meta-analysis
  2. Neuropathic pain in adults: pharmacological management in non-specialist settings (NICE Guideline NG196)
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Frequently Asked Questions (FAQ)

Common questions about Амизол (FAQ)

Q: Are the side effects of Амизол usually temporary?

According to official product information, certain common side effects associated with the medicine may gradually lessen. This improvement often occurs as the body adjusts to the substance during the initial phase of treatment.

Q: What is the risk classification for Амизол during pregnancy or breastfeeding, accordingtoregulatoryagencies?

Official information indicates that it is not completely established how the active substance may affect an unborn baby during pregnancy. Additionally, regulatory documents confirm that the substance does pass into breast milk, which is a factor noted in the safety information.

Q: Can Амизол be used by people who have certain liver or kidney conditions?

Severe liver disease is noted as an absolute contraindication for use. While official guidelines state that no dose adjustment is generally required for kidney (renal) impairment, official documentation indicates that caution is necessary for use by individuals with any degree of liver (hepatic) impairment.

Q: What are the ingredients in Амизол other than the main active component?

The core active substance in the preparation is Amitriptyline hydrochloride. Official documents also list non-active ingredients, or excipients, used in the formulation. For example, some forms contain lactose monohydrate. The full, official list of ingredients can be found in the product’s regulatory documentation.

Q: What is the official recommended duration of use for Амизол?

For its use in major depressive disorder, regulatory guidelines often describe the period of treatment to be continued for an appropriate duration. This period is typically advised for up to six months after the person has recovered, as this may lessen the chance of relapse.

Q: How quickly can I expect to notice any effects from Амизол?

Official product information notes that the full therapeutic effect does not occur immediately. For depression, this may take up to 30 days (or 2 to 4 weeks) to develop. The effect for pain conditions is often observed within the same timeframe, usually after 2 to 4 weeks of dosing.

Q: Can Амизол affect my ability to concentrate during the day?

Regulatory documents indicate that the drug can influence the central nervous system. This may result in anticholinergic effects, including confusion and cognitive impairment (a change in thinking or concentration ability).

Q: Does Амизол have any known interactions with herbal supplements?

Official warnings highlight that certain herbal supplements can interact with the active substance. Official warnings indicate that the combination of this medicine with St John’s wort is documented to increase the risk of side effects.

Q: Does Амизол have any known interactions with common over-the-counter pain relievers?

Official patient information documents that common, simple pain relievers such as paracetamol or ibuprofen may be used while taking this medicine. These patient-level instructions indicate that the use of these particular pain relievers is noted in the patient safety information.

Q: How long does the primary component of Амизол stay in the body?

Official pharmacokinetic data from regulatory sources indicates that the substance has a half-life of approximately 16 hours. This is the time it takes for half of the substance to be eliminated from the body. Consequently, the substance and its active metabolite may remain present in the system for up to several days after the last dose.

Q: Is it normal for some people to not feel any effect when starting Амизол?

Yes, it is expected that the therapeutic effect may not be immediate. Official documents state that the full effect of the medicine can take as long as 2 to 4 weeks, or even up to 30 days, to fully develop.

Q: Why is the dosage of Амизол different for various conditions?

Regulatory documents establish specific, different dose ranges based on the condition being addressed. For example, the suggested dose range for Major Depressive Disorder is often higher than the dose range used for conditions like neuropathic pain or for the prophylaxis of migraines.

Q: Is Амизол a drug that requires blood monitoring?

Regulatory guidelines indicate that drug levels in the blood may be monitored in certain situations. This is typically noted for patients who are receiving higher doses, often those above 100 mg per day.

Q: What are the official guidelines regarding driving or operating machinery while using Амизол?

Official guidelines note that this medication may impair the mental and physical abilities necessary for performing hazardous tasks. This includes activities such as operating machinery or driving a motor vehicle.

Q: Can Амизол be used at the same time as vitamin supplements?

Official patient information indicates that a healthcare provider should be informed if a user is taking any vitamin or mineral supplements. This is a standard measure to ensure that all substances being taken are considered together.

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How should Амизол be stored and disposed of?

How to Store and Dispose of Amizol (Amitriptyline HCl)

The storage and disposal of Amizol must strictly follow official regulatory requirements to maintain product stability and ensure safety.


Storage Requirements

  • Temperature and Light: Tablets must be stored at Controlled Room Temperature, specifically between 20 C and 25 C (68 F to 77 F), and protected from light, heat, and moisture.
  • Packaging: Keep Amizol in the container it was dispensed in, ensuring it is tightly closed and light-resistant.
  • Child Safety: The medication must be kept out of the sight and reach of children in a secure location.

️ Disposal Instructions

Official instructions recommend disposing of unused or expired Amizol through a drug take-back program. If a program is unavailable, the medicine must be mixed with an undesirable substance (such as used coffee grounds or dirt) and placed in a sealed container before being discarded in the household trash. Do not dispose of this medication by flushing it down the toilet or sink.

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

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