Opipram

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Opipram

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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 Opipram

Property Description
Active ingredient Opipramol (as the dihydrochloride salt)
Form Oral formulation (Film-coated tablet)
Pharmacological class Tricyclic Antidepressant (TCA) / Anxiolytic
General purpose Relief from anxiety and nervous tension
Origin Synthetic compound

Opipram is a prescription-only medication whose active ingredient is the synthetic compound Opipramol, requiring professional authorization for use. This substance is structurally classified as a dibenzazepine derivative and belongs to the family of tricyclic antidepressants (TCAs). Opipramol holds a unique position, however, as its primary therapeutic function is that of a powerful anxiolytic (anti-anxiety agent), distinguishing it from classic TCAs. Opipramol’s mechanism does not rely on inhibiting the reuptake of key monoamines, which is a significant differentiating factor from standard antidepressant therapies, thereby allowing it to address anxiety via alternative pathways.

The general purpose of Opipramol is to provide foundational relief from symptoms associated with generalized anxiety and debilitating emotional tension. The therapeutic effect of its unique pharmacology, specifically its action as a high-affinity sigma-receptor ligand and a strong antagonist of histamine H1 receptors, yields a significant reduction in generalized anxiety states. Opipramol has established efficacy in addressing anxiety conditions where physical (somatic) manifestations, such as muscle tension or restless sleep, are prominent.

Opipram is a single-active ingredient product (monotherapy) and is intended for the oral route of administration. The compound is supplied as a solid oral formulation, typically a film-coated tablet, which ensures reliable systemic absorption. Its classification as a non-classical TCA underscores its specialized role in psychopharmacology, focusing on anxiety relief over primary mood elevation.

Regulatory References

  1. Opipramol Mechanism on NIH

What side effects are possible with Opipram?

Possible Side Effects and Safety Information

The information below summarizes the officially documented adverse reactions and safety profile for opipram, strictly based on authoritative government regulatory documents.

Clinically Significant Safety Considerations

Official regulatory information emphasizes several serious risks:

  • Suicidality Risk: There are regulatory warnings concerning the emergence of suicidal thinking and behavior, particularly in children, adolescents, and young adults (up to age 24), especially when initiating therapy or following dose adjustments.
  • Cardiovascular Risks: Use is associated with serious cardiac effects, including heart rhythm disturbances (e.g., QTc prolongation, Torsade de Pointes) and conduction defects. The medicine is contraindicated immediately following an acute heart attack.

Frequency-Classified Adverse Reactions

Adverse reactions are organized by the likelihood of their occurrence, as defined in official regulatory texts.

Classification Examples of Documented Reactions
Very Common (Affects more than 1 in 10 people) Dry mouth, constipation, blurred vision.
Common (Affects 1 to 10 in 100 people) Dizziness, fatigue, somnolence (drowsiness), hypotension (low blood pressure).
Uncommon (Affects 1 to 10 in 1,000 people) Headaches, anxiety, tremor, gastrointestinal disturbances, insomnia, agitation, skin reactions.

Safety Restrictions and Contraindications

  • Drug Interactions: The medicine is strictly contraindicated for use with Monoamine Oxidase Inhibitors (MAOIs) due to the risk of severe reactions, including hypertensive crisis and serotonin syndrome.
  • Vulnerable Populations: Caution is required when using the medicine in the elderly due to an increased risk of falls and adverse cardiovascular effects. Individuals with pre-existing cardiovascular disease, angle-closure glaucoma, or conditions causing urinary retention also require specific caution.

Overdose and Emergency Response

Opipram Overdose and When to Seek Help

Overdose involving Opipramol is considered potentially life-threatening and requires immediate medical attention. All suspected overexposures must be immediately evaluated, as severe toxicity, typically developing within six hours of ingestion, can lead to critical complications. Pediatric patients are noted in regulatory documents as having a specific risk for severe, prolonged cardiotoxicity.

Documented Overdose Manifestations

The official overdose profile documents a triad of severe effects that require urgent attention:

  • Cardiovascular: Dangerous cardiac dysrhythmias, QRS prolongation on ECG, and profound hypotension (low blood pressure).
  • Neurological: Seizures (convulsions), severe confusion or altered mental status, and a comatose state.
  • Anticholinergic: Significant tachycardia (rapid heart rate), dry mouth, and hyperthermia (elevated body temperature).

Emergency Actions and Monitoring

Official Requirement Description
Immediate Action Seek emergency medical help immediately. The overdose may be life-threatening and requires urgent intervention to manage critical physiological systems.
Supportive Care Procedures prioritize managing the airway, breathing, and circulation. Activated charcoal is a documented measure for gastrointestinal decontamination where appropriate.
Monitoring Patients with clinical signs or ECG changes require intensive hospital monitoring for at least 24 hours to manage the potential for severe complications. No specific antidote is documented; treatment is symptomatic and supportive, including sodium bicarbonate for cardiotoxicity.

Therapeutic Uses of Opipram

What Opipram Treats: Main Uses and Benefits

Opipramol is commonly used to help with conditions where emotional distress and heightened tension create noticeable physiological strain. It is indicated for use in Anxiety Disorders and Psychosomatic Disorders.

Easing Generalized Anxiety and Chronic Tension

The medication is commonly used to help with Generalized Anxiety Disorder (GAD) and associated states characterized by persistent, excessive worry and debilitating emotional tension. This application is relevant in clinical settings that involve unstable symptom patterns, where the therapeutic benefit generally contributes to improved comfort by easing chronic apprehension associated with symptoms that interfere with daily functioning.

Supportive Relief for Somatic Symptoms

Opipramol is considered relevant in conditions like somatoform disorders, which involve pronounced physical symptoms driven by psychological stress. It plays a role in managing anxiety-related body complaints, which may assist with maintaining functional stability by easing the overall symptom load related to systemic imbalance. It supports the patient during difficult episodes by easing distress and may assist with managing symptoms that interfere with daily comfort when sleep difficulties are caused by underlying anxiety.

Quick Fact: Symptomatic support for Psychological and Somatic Tension

Eligibility and Restrictions for Use

Eligibility Scope

The official regulatory profile for Opipramol defines who can and cannot use the medicine by classifying patients into absolute exclusions and restricted-use populations.

Populations for Whom Use is Contraindicated

Use is prohibited (contraindicated) for patients with a known hypersensitivity to the medicine or its components, as well as individuals experiencing acute intoxication from alcohol, sedatives, or analgesics. The contraindication also applies to those with specific cardiac issues, including a recent myocardial infarction or higher-grade cardiac conduction blockages.

Absolute exclusions further cover patients with untreated narrow-angle glaucoma, acute delirium, acute urinary retention, and paralytic ileus. Concurrently taking Monoamine Oxidase Inhibitors (MAOIs) is strictly prohibited.

Age-Related and Condition-Specific Eligibility

Population Group Regulatory Status
Adults Recommended population for use.
Children/Adolescents (Under 18) Use is not typically indicated; safety and efficacy are not clinically established.
Older Adults Use requires caution due to increased sensitivity to anticholinergic effects.

Eligibility is further limited for those with severe liver impairment, which is a formal contraindication. Use requires caution in cases of general liver impairment, a history of seizure disorders, and during pregnancy (generally contraindicated, only for compelling indication) and lactation (contraindicated).

What should I know about interactions with other medicines?

Interactions with other medicines and products

Opipramol's interaction profile is categorized based on its potential to be metabolized by or interfere with the body's drug-processing systems, as documented in official regulatory labeling.


Pharmacokinetic and Pharmacodynamic Interactions

Interaction Type Interacting Product Categories
Metabolic Inhibition/Induction Anticonvulsants; Barbiturates; Antipsychotics
Enzyme Competition Tricyclic Antidepressants; Beta-blockers; Antiarrhythmics (Class 1c)
Additive CNS Effects Alcohol; Hypnotics; Other Anxiolytics; Sedatives

Regulatory Constraints and Warnings

Official regulatory information identifies specific combinations and usage constraints to manage interaction risks:

  • Contraindicated Combination: Concomitant use with Monoamine Oxidase Inhibitors (MAOIs) is restricted. Treatment with irreversible MAOIs must be stopped for at least 14 days before Opipramol therapy is initiated.
  • Exposure Modification: Co-administration with certain antipsychotics, such as haloperidol and risperidone, may increase Opipramol's plasma concentration. Conversely, co-administration with enzyme inducers, such as barbiturates and anticonvulsants, can reduce Opipramol plasma concentrations.
  • Avoidance Requirement: Consumption of alcohol is to be strictly avoided due to the documented potential for enhanced adverse effects when combined with Opipramol.

Mechanism of Action

Opipramol's mechanism of action is defined by its primary interaction as a sigma-1 receptor (sigma1) agonist . The sigma1 receptor is an intracellular chaperone, and its activation by Opipramol modulates cellular resilience, intracellular calcium ( Ca^2+) homeostasis, and the glutamatergic system. This molecular action contributes to the modulation of activity within neural networks. Concurrently, the molecule acts as a strong antagonist (blocker) of the Histamine H1 receptor in the central nervous system. By interrupting the signal transmission of central histaminergic pathways, this antagonism results in decreased central arousal and reduced central excitation. The integration of sigma1 agonism with these other molecular actions leads to the modulation of the Autonomic Nervous System (ANS). This systemic consequence involves modulation of sympathetic outflow, which directly affects the homeostatic state of the autonomic nervous system.

Dosage and Administration Information

Administration Scope

Route of administration: Oral (via film-coated tablet)

Dosing schedule:

  • Adult Starting Dose: Typically 50 mg to 100 mg total per day.
  • Maintenance Range: 50 mg to 100 mg, one to three times daily.
  • Maximum Dose: Total daily intake should generally not exceed 300 mg.

Timing in relation to meals (if applicable): Can be administered with or without food.

Preparation requirements (if applicable): The tablet must be swallowed whole with an adequate amount of liquid, such as water; it should not be crushed or chewed.

Age-group administration rules:

  • Older Adults (Geriatric): Use requires lower initial doses, sometimes 1/3 to 1/2 the standard adult dose.
  • Children (over 6 years): Standard dosing frameworks provide a 3 mg/kg body weight framework for dosing, though clinical experience is limited.

Missed-dose rules: If a dose is missed, the patient must skip the forgotten dose and continue with the regular schedule; doubling the dose is not permitted.

Special procedural conditions: The total dose is typically administered in divided doses, with the largest portion frequently taken in the evening.


Instruction Classifications (High-Level)

Administration method type (oral / IV / topical / inhaled / etc.): Oral

Frequency pattern (daily / weekly / as-needed, etc.): Daily (usually divided 1–3 times per day)

Use-context constraints: Must be taken consistently at the same time each day; discontinuation following extended use requires gradual dose reduction (tapering).


Resulting Procedural Structure

Procedural step sequence:

  • Initiate with a low, specified starting dose (e.g., 50–100 mg total daily).
  • Adjust the dose gradually to the appropriate maintenance range (up to 300 mg max).
  • Administer the total daily amount in divided doses, often with the largest dose in the evening.
  • Swallow the film-coated tablet whole with liquid; do not crush or chew.
  • Maintain the prescribed regimen for the recommended duration (e.g., at least two weeks for initial evaluation).
  • Discontinue use by implementing a controlled, gradual dose reduction (tapering).

Connection to the overall use protocol (2–4 sentences): The established protocol describes a defined oral administration method that specifies a flexible total daily dose, divided into multiple intakes, with an emphasis on the evening dose. This framework outlines the necessary time commitment for therapy and describes a controlled, gradual dose reduction process when ending the course.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Opipram

Evidence for Use in Generalized Anxiety Disorder (GAD)

Research into opipramol’s role in generalized anxiety and chronic emotional tension was studied primarily through Randomized Controlled Trials (RCTs), comparing results against an inactive substance (placebo) or a standard treatment. Studies examined measured changes in anxiety intensity using scales like the Hamilton Anxiety Scale (HAMA). Reviews note that the overall evidence quality varies across studies, and certainty about these findings may be described as low to very low across some outcomes, partly because many foundational studies are older.


Evidence for Anxiety Accompanied by Somatic Symptoms

Opipramol was evaluated in research contexts involving conditions where physical symptoms, such as persistent muscle tension, were studied. These controlled clinical studies examined symptom intensity using tools that focus on the physical component of anxiety (somatic subscale). Findings describe patterns observed in symptom measurements. The available controlled evidence is derived from studies where the sample sizes were modest, and there is a need for replication of these findings.


Long-Term Studies and Maintenance of Effect

The majority of rigorous, controlled evidence for opipramol was studied for short-term symptom patterns and acute changes. Information regarding long-term outcomes and stability of symptom patterns over extended periods is not fully established. There is limited information for long-term outcomes regarding the durability of any observed changes beyond six months.


Evidence in Specific Populations and Comorbidities

The foundational research focused on general adult outpatients. Data for certain groups remain insufficient; for instance, there is limited available information for the older adult population or those with specific co-occurring conditions. The results apply only to the populations studied.


What is Still Uncertain About Opipram Research

Scientific reviews frequently cite low certainty for some outcomes due to methodological differences and heterogeneity in the research. Key limitations include the prevalence of short follow-up durations and generally modest sample sizes in some specific trials. Research provides context but not individual predictions regarding symptom response.

Key Studies & References

  1. MODERN INDICATIONS FOR THE USE OF OPIPRAMOL - Psychiatria Danubina

Frequently Asked Questions (FAQ)

Common questions about Opipram (FAQ)

Q: How quickly should I expect to feel the anxiety-relieving effects of Opipram?

Official information indicates that the therapeutic effect of Opipram is often described as biphasic. Initial improvement in symptoms like tension and anxiety may be noticed first. The final therapeutic response may become fully apparent gradually over several weeks, and consistent use is necessary for full evaluation.


Q: How long does it typically take for the full therapeutic benefit of Opipram to be noticeable?

According to official regulatory summaries, clinical evaluation of the medicine's effectiveness often requires a treatment duration of at least two weeks. The full therapeutic effect is a gradual process that may take longer, and it is important for individuals to continue the medication as prescribed for proper assessment.


Q: Is Opipram considered a medication that can cause dependence or addiction?

Opipram is generally not classified as a medication with a high dependence potential. However, regulatory documents mandate that discontinuation following long-term use must be managed through a controlled, gradual dose reduction, known as tapering, to help mitigate potential withdrawal or rebound effects.


Q: Can taking Opipram affect my ability to drive or operate machinery safely?

Official safety information notes that Opipram can cause side effects such as dizziness, drowsiness (somnolence), and blurred vision. These effects can significantly impair concentration and motor skills. The official guidance advises patients to avoid driving or operating heavy machinery if they experience these effects.


Q: What is the research evidence for Opipram's effectiveness in somatoform disorders?

Opipramol is officially indicated in some regulatory jurisdictions for the treatment of generalized anxiety disorder and somatoform disorders. This indication is supported by available clinical data and is included in some regulatory labeling, demonstrating its use in conditions where physical symptoms accompany distress.


Q: What are the considerations for Opipram use during the different trimesters of pregnancy?

Regulatory documents state that use during pregnancy is generally contraindicated (not recommended). Use is reserved for situations where a prescriber determines the potential benefit to the patient clearly outweighs the potential risk to the fetus.


Q: How is Opipram different from a standard tricyclic antidepressant (TCA)?

Although Opipram is structurally related to older tricyclic antidepressants (TCAs), it functions differently. Official data shows that Opipramol's primary action is as a sigma-1 receptor agonist and an H1 antagonist. Crucially, its mechanism does not rely on inhibiting the reuptake of key monoamines like serotonin or norepinephrine, unlike standard TCAs.


Q: What is the unique 'sigma-receptor' action of Opipram, and how does it benefit anxiety?

Opipramol's unique action is the activation (agonism) of the sigma-1 receptor, which helps modulate intracellular cell signaling and the glutamatergic system. This molecular action is considered to contribute to the medication's specific anxiolytic (anti-anxiety) and stabilizing properties.


Q: How does Opipram affect the balance of neurotransmitters compared to a standard antidepressant?

Opipram does not function as a reuptake inhibitor for serotonin or norepinephrine, unlike most standard antidepressants. Its primary effects are strong antagonism of the Histamine H1 receptor, which contributes to its sedative action, and agonism of the sigma-1 receptor, which modulates neural networks.


Q: Can Opipram cause changes in weight (gain or loss)?

Weight change is not listed among the most common documented adverse reactions. However, regulatory warnings note that other metabolic or appetite changes are possible in the uncommon or rare classifications of side effects.


Q: Is it possible for Opipram to cause changes in heart rate or blood pressure?

Yes. Low blood pressure (hypotension) is a common documented adverse reaction. Furthermore, the medication is associated with serious cardiovascular risks, including heart rhythm disturbances and conduction defects, and is contraindicated immediately following a recent heart attack.


Q: What are the general recommendations for gradually stopping Opipram?

Regulatory documents explicitly mandate that Opipram must not be stopped suddenly following extended use. Discontinuation requires a controlled, gradual dose reduction, known as tapering. This process should be managed by a prescribing healthcare professional.


Q: What are the signs of a common withdrawal effect if Opipram is discontinued too quickly?

The requirement for tapering is in place to prevent discontinuation symptoms. While specific withdrawal symptoms are not always listed in frequency tables, sudden cessation of this type of medication can lead to rebound effects such as increased anxiety, restlessness, and sleep disturbances.


Q: Are there any known interactions between Opipram and herbal supplements like St. John's Wort or Ashwagandha?

Official labeling strongly prohibits the combination of Opipram with Monoamine Oxidase Inhibitors (MAOIs). Although specific herbal supplements are not individually listed, caution is generally noted regarding supplements that may affect the liver enzymes that process Opipram.


Q: Is there a risk of Serotonin Syndrome when Opipram is combined with other serotonergic medications?

Yes. The medicine is strictly contraindicated for use with Monoamine Oxidase Inhibitors (MAOIs) due to the risk of severe reactions, including Serotonin Syndrome. The need for caution when combining Opipram with other serotonergic agents is noted in the official guidance.


Q: Can Opipram cause unusual or vivid dreams?

Commonly documented side effects include somnolence and agitation. While specific effects on dreams are not typically listed in the major frequency classifications, the safety profile does note possible occurrences of confusion and restlessness that may impact sleep and dream quality.


Q: Can Opipram be taken with over-the-counter allergy medications (antihistamines)?

Opipramol is a strong H1 antagonist. Official warnings advise caution regarding the additive sedative effects that can occur when it is combined with other sedatives, hypnotics, or anxiolytics. Many over-the-counter allergy medicines (antihistamines) may fall into these categories.


Q: What is the relevance of Opipram's half-life for its effect and potential for withdrawal?

Official pharmacokinetic data typically cites Opipramol's terminal half-life in the range of 6 to 11 hours. This parameter influences the recommended dosing frequency (often in divided doses daily) and is a factor in the necessary duration of the gradual tapering process during discontinuation.


Q: Is there any data on Opipram affecting cognitive functions or memory?

The safety profile lists dizziness, somnolence, and fatigue as common side effects. More severe adverse events like confusion and delirium are noted as possible. These effects can potentially impact concentration and mental clarity, and is an important consideration for patients.


Q: How often is follow-up monitoring typically recommended after starting Opipram?

Due to potential cardiovascular risks, regulatory guidelines suggest that checks, such as ECGs (electrocardiograms) and blood pressure measurements, are often recommended before and periodically during treatment with Opipram.

How should Opipram be stored and disposed of?

How to Store and Dispose of Opipram?

The storage and disposal of Opipramol tablets are governed by official regulatory requirements designed to maintain the product's quality and ensure public safety. All instructions are based strictly on governmental labeling.

Storage Requirements

Requirement Official Condition
Temperature Store below 30°C.
Protection Keep in the original packaging to protect from light and moisture.
Safety Must be stored out of the sight and reach of children.

Disposal Instructions

Unused or expired Opipramol must be handled as pharmaceutical waste. Disposal must not occur via household waste or wastewater (e.g., flushing down the toilet). Patients must follow local regulations for the disposal of medicines, often requiring return to a pharmacy or a designated collection program.

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

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