Trancopal Dolo

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Trancopal Dolo

Treatment option: Pain

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.

Overview of Trancopal Dolo

Quick Facts

Property Description
Active ingredient Flupirtine
Form Primarily oral capsules or tablets
Pharmacological class Centrally acting analgesic (N02BG07), Non-opioid, Non-NSAID
Common use Relief of moderate-to-severe pain
Origin Synthetic (Triaminopyridine derivative)

What Type of Pain Reliever is Trancopal Dolo?

Trancopal Dolo is a synthetic pharmaceutical preparation containing the active ingredient Flupirtine, an analgesic designated for the management of pain. The World Health Organization (WHO) places Flupirtine in the category N02BG07, defining it as an analgesic that is neither a typical opioid nor a Non-Steroidal Anti-Inflammatory Drug (NSAID). The medicine is a single-component product, typically formulated as the maleate salt for oral administration in the form of capsules or tablets. Its origin is established as a chemically synthesized pyridine derivative, marking its standing apart from other chemical classes used for pain.

Flupirtine is specifically recognized as a Selective Neuronal Potassium Channel Opener (SNEPCO), a unique classification that distinguishes its mechanism from conventional analgesics. This means the medicine acts specifically on nerve cells to manage the way pain signals are transmitted.

Flupirtine’s Unique Purpose in Pain Management

The general purpose of Trancopal Dolo is to provide relief for moderate-to-severe pain by directly modulating nerve activity in the central nervous system. This centrally acting function stabilizes the electrical potential of nerve cells, which lessens the generation and transmission of pain signals. The compound possesses clinically relevant muscle relaxant properties that are mediated centrally. This suggests the medicine is useful in scenarios of pain compounded by associated muscular stiffness or tension, offering a distinctive, combined therapeutic benefit.

Regulatory References

  1. WHO Collaborating Centre for Drug Statistics Methodology

What side effects are possible with Trancopal Dolo?

Possible side effects and safety information

The safety profile of Trancopal Dolo, containing Flupirtine, is heavily defined by regulatory restrictions and the potential for hepatotoxicity, or liver injury. Official regulatory documents list adverse reactions classified by frequency and affected body systems.

Adverse Reaction Classifications

The most significant and officially frequent finding is related to the liver system, necessitating close monitoring.

System Organ Class Adverse Reaction Frequency Classification
Hepatobiliary Disorders Transaminases increased (elevated liver enzymes) Very Common (≥ 1/10)
Hepatobiliary Disorders Hepatitis, Liver failure Not Known (Cannot be estimated)
Nervous System Disorders Drowsiness, Vertigo (Dizziness) Commonly Observed

The officially documented serious adverse reactions include Hepatitis and Acute Liver Failure, with reported cases resulting in fatal outcome or requiring liver transplantation. This risk profile mandates specific constraints on use.


Safety Restrictions and Special Populations

Regulatory authorities impose strict safety limitations on this medicine, primarily concerning treatment duration and patient conditions. The maximum duration of treatment is officially restricted and must not exceed two weeks.

Use of Flupirtine is contraindicated in patients with pre-existing conditions such as hepatic encephalopathy, cholestasis, pre-existing liver disease, and chronic alcoholism. Due to the risk profile, weekly liver function monitoring is officially required during the entire course of treatment.

Specific dose reduction is officially recommended for both older adults and individuals with renal impairment. Furthermore, the medicine is officially not recommended for use in children and adolescents under 18 years of age.

Overdose and Emergency Response

Overdose and When to Seek Help

This section outlines the officially documented overdose profile for Flupirtine (the active ingredient in Trancopal Dolo) based strictly on governmental regulatory information.

Classification Details
Documented Manifestations Nausea, vomiting, tiredness, dizziness, drowsiness, dry mouth, and, in cases of very high ingestion, impaired consciousness.
Severe Outcomes The most critical risk is hepatic injury, including documented cases of acute liver failure, which has led to fatal outcomes or required liver transplantation.
Antidote No specific pharmacological antidote is officially listed for Flupirtine poisoning.
Management Focus Treatment is symptomatic and supportive, requiring close surveillance for managing intoxication, particularly monitoring for signs of liver damage.

Required Emergency Action

Immediate medical attention must be sought, and the nearest emergency medical department contacted, if an overdose with Flupirtine is suspected. The high-dose exposure is officially associated with severe consequences like acute liver failure. Due to the severe, life-threatening potential of hepatic failure and the lack of a specific antidote, close and intensive observation is required in cases of severe intoxication.

Therapeutic Uses of Trancopal Dolo

What Trancopal Dolo Treats: Main Uses and Benefits

Flupirtine, the active ingredient in Trancopal Dolo, is applied across domains where additional symptomatic support is needed for moderate-to-severe acute pain. Its application is relevant in clinical situations where other symptomatic support options are not appropriate.

Acute Pain with Muscular Stiffness

This medication is relevant in contexts marked by increased discomfort or tension, specifically where pain is aggravated by muscular stiffness or spasm. It is relevant in conditions presenting with systemic or localized discomfort, including acute low-back pain, pain following traumatic injuries, and episodic manifestations such as severe dysmenorrhea. This approach may help address symptom clusters that include both pain and tension, contributing to improved comfort during periods of heightened symptoms.

Symptomatic Relief for Restricted Scenarios

Trancopal Dolo is often used during phases when symptoms become more noticeable, such as following surgical procedures (postoperative pain). It is applicable in clinical settings that involve acute or disruptive symptom patterns, and may assist with managing pronounced symptomatic episodes. It offers symptomatic relief that may help with managing discomfort for adult patients when other appropriate supportive symptom management options are restricted. This provides support that helps ease the overall symptom burden.


Quick Fact Description
Relief for Moderate-to-severe acute pain
Common Use Context Short-term management in post-traumatic or postoperative settings
Unique Symptom Focus Pain associated with muscular tension or spasm

Eligibility and Restrictions for Use

The eligibility profile for Trancopal Dolo (Flupirtine) is defined by stringent restrictions and absolute contraindications primarily related to liver safety. Use of this medicine is reserved for highly specific, limited-duration scenarios in the eligible population, strictly according to official regulatory labeling.


Category Eligibility Classification
Populations Allowed Adults (18 years and older) for acute pain.
Absolute Contraindications Patients with pre-existing liver disease, alcohol abuse problems, or those taking other known liver-toxic medicines.
Duration Restriction Treatment must not exceed 2 weeks; not recommended for chronic pain.
Pediatric Use Contraindicated in children and adolescents under 18 years (safety not established).
Conditional Use Use in older adults and patients with renal or hepatic impairment requires conditional dose adjustment.
Pregnancy Status Safety is not established in pregnancy. Breastfeeding should be stopped if use is indicated.

Resulting Eligibility Structure

Official regulatory documents explicitly define the patient population eligible for this medicine as restricted to adults being treated for acute pain for a maximum of two weeks, and only when other standard pain treatments are contraindicated. Absolute exclusion applies to any patient with evidence of pre-existing liver disease or alcohol abuse. The official profile, therefore, establishes a very narrow and conditional usage framework based on age, organ health, and duration of therapy.

What should I know about interactions with other medicines?

The interaction profile for Trancopal Dolo (Flupirtine) is strictly defined by regulatory authorities due to the potential for severe liver injury, with official documents classifying certain combinations as contraindicated.

I. Contraindicated Combinations and Restrictions

Co-administration with medicinal products known to cause drug-induced liver injury (hepatotoxic agents) is formally prohibited and classified as a contraindicated combination. This restriction is also mandatory for patients with a history of alcohol abuse problems, as alcohol severely increases the risk of liver damage. These prohibitions organize the highest-level risk management within the official product labeling.

II. Pharmacodynamic and Exposure-Altering Interactions

Regulatory information documents a pharmacodynamic interaction with alcohol and other sedatives (e.g., Benzodiazepines), where co-administration may potentiate Central Nervous System (CNS) depressant effects, resulting in increased tiredness and dizziness.

Interactions affecting drug exposure and toxicity are also documented. Combining Flupirtine with Paracetamol (Acetaminophen) or Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) may significantly increase the overall hepatotoxic potential. Furthermore, co-administration with Oral Anticoagulants (such as Warfarin) may potentiate the anticoagulant effect; regulatory guidance requires mandatory monitoring of blood coagulation times. The co-administration of Carbamazepine is also not advised, due to its known effect as a hepatic enzyme inducer which may alter Flupirtine's exposure profile.

Mechanism of Action

Modulating Neuronal Potassium Channels

This mechanism involves the drug acting as a selective neuronal potassium channel opener (SNEPCO), engaging mechanisms that regulate the flow of potassium ions, particularly through Kv7 channels. The resulting physiological effect is the hyperpolarization of the neuron's resting membrane potential, which decreases the frequency of action potential firing within targeted nervous system pathways.


Indirectly Regulating NMDA Receptors

The drug modifies early molecular steps that shape systemic physiological outcomes by indirectly antagonizing N-methyl-D-aspartate (NMDA) receptors. This action decreases the downstream cellular response to excitatory mediator activity, such as glutamate, by inhibiting downstream signaling sequences dependent on NMDA receptor activation.


Influencing Descending Inhibitory Pathways

Trancopal Dolo supports the regulation of processes driven by distinct signaling patterns in the central nervous system, which includes the descending inhibitory serotonergic pathways. This action modulates neurotransmitter release within these pathways, influencing the central processing of afferent nociceptive input, modifying systemic physiological outcomes.

Dosage and Administration Information

Trancopal Dolo (Flupirtine) is administered according to a restricted protocol. The primary route of administration is oral, typically using immediate-release capsules or tablets, but the medicine is also available for rectal use or as an intramuscular injection for specific acute scenarios.

The dosing regimen for adults (aged 18 years and older) is structured to use the lowest effective dose for the shortest possible duration. The standard oral dose is 100 mg, administered in divided doses three to four times per day. The total daily intake must not exceed 600 mg. Oral forms should be swallowed whole and can be taken with or without food.

A mandatory usage constraint requires that the medicine must only be used in adult patients when treatment with other standard analgesics, such as non-steroidal anti-inflammatory drugs or weak opioids, is contraindicated. The total duration of any treatment course must not exceed 14 consecutive days. Furthermore, dose adjustment is a crucial part of the protocol: older adults and patients with known renal or hepatic impairment require a 50% dose reduction to minimize systemic exposure. The medicine is not to be administered to persons under 18 years of age.

Recent Clinical Evidence

Research Summary: Evaluation of Drug Components

Studies investigated the combination of Compound A and Compound B. This approach has been widely researched in various pain models.

Research focused on the combined administration of the two compounds. Studies explored associations with changes in pain scores in patients with musculoskeletal injuries. The research also examined associations with changes in pain levels and the timing of initial response.

  • Compound A: Research has explored the study of Compound A's effect on pain pathways.
  • Compound B: Studies have explored the study of Compound B's effect on muscle activity.

Efficacy Data from Clinical Trials

Use in Acute Musculoskeletal Pain

Clinical trials have primarily focused on the short-term administration of the drug in patients experiencing acute, moderate-to-severe musculoskeletal pain, such as from sprains or lower back strain.

Research explored the change in pain levels over a short-term period (e.g., 7–10 days). Studies have primarily focused on the use in acute pain settings.

Research examined markers related to inflammation in the affected area. Studies also looked at the timeline for return to usual activity.

Dosing and Findings Profile

Research included studies on different dose levels and reported observations related to effects, particularly in older adults.

The research evaluated short-term administration in adults. Studies reported gastrointestinal effects and drowsiness as common observations.

Studies have examined dose-response and clinical observations in individuals with pre-existing conditions, such as kidney disease. Research explored whether co-administration with other pain medications was associated with observations related to sedation.

Combination Therapy Research

Other studies reported findings when the drug was administered alongside non-pharmacological interventions, such as physical therapy.

Research explored whether this combination showed differing results compared to the single agent alone. The studies focused on objective measures of physical function, such as range of motion and grip strength.

This administration was one of the approaches examined in the research for managing certain types of acute pain. Research often evaluates multiple methods for managing chronic pain.

Frequently Asked Questions (FAQ)

Common questions about Trancopal Dolo (FAQ)

Q: Does Trancopal Dolo lose its effect if I take it for a long time?

Official information indicates that the medicine has a low potential for physical dependence or the development of tolerance.

However, regulatory authorities strictly limit the maximum duration of treatment to 14 consecutive days. This crucial constraint is in place due to the established risk of liver injury (hepatotoxicity), not due to a concern about loss of effect.

Q: What are the signs of a serious side effect from Trancopal Dolo?

Regulatory warnings instruct patients to watch for specific symptoms that could indicate a serious liver issue (hepatic damage). These include dark urine, jaundice (yellowing of the skin or eyes), loss of appetite, fatigue, nausea, vomiting, or persistent abdominal pain.

The presence of these signs is typically cited in regulatory warnings as requiring immediate attention.

Q: Does Trancopal Dolo affect mental focus or memory?

Adverse reaction listings from official sources confirm effects on the central nervous system (CNS).

These commonly observed effects are drowsiness and dizziness. In some cases, patients have also experienced confusion, which relates to general mental focus.

Q: Does Trancopal Dolo interact with over-the-counter pain relievers like ibuprofen?

Official guidance warns that combining the medicine with Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), such as ibuprofen, may significantly increase the overall potential for liver toxicity.

This restriction is based on the combined hepatotoxic risk from both medications.

Q: Why would a doctor prescribe Trancopal Dolo instead of a regular painkiller?

Regulatory guidance defines a highly specific, restricted role for this medicine in pain management. It dictates that the medicine must only be used when treatment with other standard analgesics, such as NSAIDs or weak opioids, is officially contraindicated for the patient.

It is reserved for use in these specific, conditional circumstances.

Q: Is Trancopal Dolo safe to take only when pain is severe?

According to the official product information, the medicine is indicated for the relief of moderate-to-severe pain. Its use is limited by a strict, short-term treatment protocol defined by regulatory authorities.

Use of this medicine is reserved for acute pain scenarios under specific prescribing constraints.

Q: How is Trancopal Dolo different from an NSAID like ibuprofen?

The medicine is classified as a centrally acting analgesic that is neither an opioid nor a Non-Steroidal Anti-Inflammatory Drug (NSAID).

A key factual difference is that this medicine does not possess the anti-inflammatory or fever-reducing properties associated with typical NSAIDs.

Q: Is there a risk of developing a serious skin reaction with Trancopal Dolo?

Official documents report that rare, serious hypersensitivity reactions have been observed with the use of this medicine.

These documented skin reactions include fixed drug eruptions and generalized drug eruptions.

Q: Is Trancopal Dolo habit-forming or addictive?

The medicine is not classified as an opioid and official sources indicate it has a low potential for abuse.

However, regulatory information notes that withdrawal symptoms have been reported in isolated cases following the abrupt cessation of long-term use.

Q: Is it true that Trancopal Dolo has been withdrawn in some countries?

Regulatory authorities in the European Union and other regions endorsed the withdrawal of the medicine’s marketing authorization.

This decision was made because the ongoing risk of serious, unpredictable liver injury was deemed to outweigh the medicine's benefits for patients in those markets.

Q: Can Trancopal Dolo cause constipation or other bowel issues?

Official adverse reaction listings note that gastrointestinal complaints are commonly observed with this medicine.

These reactions include specific issues such as constipation and diarrhea, along with nausea and vomiting.

Q: Does Trancopal Dolo interact with common cold or allergy medicines?

The medicine has a documented pharmacodynamic interaction with sedatives.

This means that co-administration with products containing Central Nervous System (CNS) depressants, such as certain cold or allergy medicines, may increase effects like tiredness and dizziness.

Q: Is Trancopal Dolo ever used for conditions not listed in the official documents?

The medicine is restricted to the specific indications and usage conditions defined in the official regulatory documents.

Use of the medicine for conditions not listed in the official documents falls outside of the authorized scope defined by regulatory authorities.

Q: What kind of research supports the use of Trancopal Dolo?

Research has primarily focused on the short-term administration of the drug in adult patients.

These clinical trials examine the medicine’s use for acute, moderate-to-severe musculoskeletal pain over short periods, typically less than two weeks, to assess changes in pain levels and the time to response.

How should Trancopal Dolo be stored and disposed of?

Storage Conditions

Official labeling requires Trancopal Dolo (Flupirtine) to be stored at a temperature not above 25mathrmC.

To ensure product stability and maintain the 24-month shelf life, the medicine must be stored in its original package. This requirement is mandatory for protection from light and moisture.

Storage Requirement Rule
Maximum Temperature Store below 25mathrmC
Container Rule Keep in original package
Protection Guard against light and moisture
Child Safety Keep out of the sight and reach of children

Disposal Instructions

Regulators instruct that any unused or expired Trancopal Dolo must be disposed of according to local requirements, often by returning it to a pharmacy or community collection point. The product should not be disposed of via household trash or flushed down a drain, which helps protect the environment.

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

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