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Valtran Retard

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Valtran Retard

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Treatment option:

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 Valtran Retard

Valtran Retard is a fixed-dose combination medication, classified as an Opioid Analgesic and Opioid Receptor Antagonist combination, intended for oral administration. Its core function is to provide effective and sustained analgesic activity while incorporating an essential mechanism to discourage misuse. This medicine is entirely synthetic in origin and is designated as prescription-only.


Quick Facts

Property Description
Active ingredient Tilidine, Naloxone Hydrochloride
Form Sustained-release tablet (Retard)
Pharmacological class Opioid Analgesic + Narcotic Antagonist
Common use Providing stable, long-acting pain relief
Origin Synthetic

What Type of Medicine is Valtran Retard and its Fixed Composition?

Valtran Retard combines two distinct synthetic active substances: the pain reliever Tilidine and the antagonist Naloxone Hydrochloride. This fixed combination means both ingredients are permanently united in the same preparation, with Tilidine belonging to the synthetic opioid class. The primary agent, Tilidine, is recognized pharmacologically as a prodrug, which is metabolized in the body into the therapeutically active substance, nortilidine. The inclusion of Naloxone Hydrochloride is a distinguishing feature, acting as a narcotic antagonist to mitigate risks associated with the opioid component.

The Significance of the Sustained-Release (Retard) Form

The designation "Retard" identifies the product as a sustained-release tablet, designed for oral administration. This is a specialized pharmaceutical preparation that regulates the rate at which its active ingredients are liberated into the body. This structure contrasts with immediate-release forms, which release their full content quickly. This controlled delivery ensures a constant level of the active substance over an extended duration, which is fundamental for maintaining stable symptom control throughout the day or night.

Why is Tilidine Combined with Naloxone Hydrochloride? (General Purpose)

The strategic combination of the opioid analgesic Tilidine with the antagonist Naloxone Hydrochloride serves the purpose of delivering pain relief with an integrated abuse deterrent mechanism. When the tablet is taken orally as intended, the Naloxone is largely inactivated by the liver, allowing the Tilidine to provide its analgesic activity. However, the presence of Naloxone is designed to block opioid receptors if the medicine is altered or misused. The German expert advisory committee review concluded that this combination, particularly in its slow-release tablet form, carries an indication of lower misuse risk and dependency compared to some other opioid formulations. This dual purpose is key to the formulation’s design.

Regulatory References

  1. Contribution of CYP2C19 and CYP3A4 to the formation of the active nortilidine from the prodrug tilidine
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What side effects are possible with Valtran Retard?

Possible Side Effects and Safety Information

Adverse reactions associated with Valtran Retard are classified according to frequency, which is consistent with regulatory standards. Officially listed effects primarily involve the Gastrointestinal and Nervous System organ classes.

Commonly Documented Adverse Reactions

The most frequent adverse reactions often include Nausea, Vomiting, Dizziness, Drowsiness (Somnolence), Headache, and Increased Sweating. Nausea and vomiting are classified as Very Common specifically at the start of treatment (treatment initiation), with incidence typically decreasing upon further exposure.

Less common documented effects may include Diarrhea, Abdominal pain, Tremor, Nervousness, Confusion, Euphoria, or Hallucinations.

Serious Adverse Reactions and Safety Constraints

Serious risks associated with the opioid component (Tilidine) include Respiratory Depression. A unique safety feature of this combination is the risk of Acute Opioid Withdrawal Syndrome which can be precipitated by the Naloxone component if the sustained-release tablet is altered or misused by physically dependent individuals.

Specific limitations on use include a Contraindication in severe hepatic impairment, as the drug's metabolism can be significantly altered, potentially prolonging the effects of the active substance. Caution is also required when used concomitantly with other Central Nervous System depressants, which can increase the risk of severe adverse effects.

Population-Specific Safety Considerations

The official profile requires specific caution regarding hepatic impairment and generally advises against use during pregnancy or lactation due to the components crossing the placenta and potentially passing into breast milk.

The official safety information structures the understanding of risks by clearly segmenting adverse reactions by frequency and organ system, indicating that common effects are generally transient. It also highlights two core safety features: the inherent risk of Respiratory Depression common to all opioids and the unique, integrated risk of precipitating withdrawal if the Naloxone component is triggered against the product's design.

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Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory profile for Valtran Retard (Tilidine/Naloxone) outlines specific clinical manifestations that may occur following overexposure and mandates immediate emergency action. It is formally required to seek medical attention immediately upon suspicion of an overdose event.

Documented Overdose Manifestations

Overdose may present with a specific spectrum of neurological and gastrointestinal signs. These commonly documented manifestations include dizziness, drowsiness, nausea, vomiting, ataxia, psychomotor agitation, and hyperreflexia. Overexposure can also involve the respiratory system, presenting as hyperventilation.

Severe Outcomes and Mandated Emergency Actions

Regulators document that severe outcomes may include hyperventilation tetany. For individuals who are opiate-dependent, the ingestion of a high dose is associated with the manifestation of acute withdrawal symptoms.

The antidote for the opioid component is Naloxone. Officially required management procedures include gastric lavage and administration of activated charcoal. Furthermore, circulatory stabilization and respiratory support are documented as necessary emergency interventions. The short duration of action of Naloxone must be considered during monitoring, and Intravenous Diazepam may be administered for documented excitatory symptoms. Specific consideration is also given to managing overdose in the context of severe hepatic impairment.

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Therapeutic Uses of Valtran Retard

What Valtran Retard Treats: Main Uses and Benefits

Valtran Retard is an analgesic medication that is commonly used to help with pain that reaches moderate to severe intensity, focusing on managing symptoms that require continuous, long-acting relief. The combination of Tilidine and Naloxone in a retard form is applied in the symptomatic management of chronic pain.

This medication is relevant for symptomatic management in situations involving long-term treatment of chronic pain, including chronic non-cancer pain and pain associated with malignant conditions. It addresses symptoms related to chronic pain conditions where discomfort is stable and present around the clock, focusing on pain that interferes with daily functioning and affects overall quality of life. The primary benefit is providing support that helps ease the overall symptom burden. The specialized formulation is designed to provide stable symptom control and contributes to a supportive analgesic effect for patients requiring continuous pain management.

Supporting Functional Stability with Sustained Relief

The specialized sustained-release formulation contributes to improved comfort during periods of heightened symptoms by contributing to maintaining a predictable and continuous level of supportive relief. This sustained action may assist with maintaining functional stability, providing supportive relief when persistent symptoms disrupt routine activities. The unique combination also may be part of symptomatic management in clinical settings that require additional management of discomfort with a feature intended to support responsible use.


Quick Fact: Relief for Persistent Pain
Symptom Level Moderate to Severe Pain
Symptom Pattern Continuous, Persistent Pain
Primary Benefit Stable, Long-Acting Symptom Relief
Clinical Context Long-term Treatment of Chronic Conditions

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Eligibility and Restrictions for Use

Who can and cannot use Valtran Retard?

The eligibility for Valtran Retard is strictly defined by regulatory documents, classifying populations that are absolutely prohibited from use and those who require conditional use or special caution.


Absolute Prohibitions (Contraindicated)

Valtran Retard must not be used by individuals with a known hypersensitivity to Tilidine or Naloxone, or by infants under one year of age. The medicine is also contraindicated in patients with:

  • Acute alcoholism or recent use of Monoamine Oxidase (MAO) inhibitors.
  • Severe respiratory disturbances or myocardial ischaemia.
  • Conditions causing dangerously increased intracranial pressure or Porphyria.

Restricted and Conditional Use

Use is not recommended in patients with severely affected liver function due to the risk of impaired drug metabolism. Special caution is required for use in elderly and debilitated patients, as well as those with impaired kidney function.

  • The label requires caution for patients with hypothyroidism, adrenocortical insufficiency, or prostatic hypertrophy.
  • Use is restricted during labour and delivery due to documented risk to the newborn, and data for use while breastfeeding is limited.
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What should I know about interactions with other medicines?

The interaction profile for Valtran Retard is structured around necessary prohibitions and documented changes in drug exposure. Co-administration with Monoamine Oxidase Inhibitors (MAOIs) is formally contraindicated and requires a mandatory 14-day separation period after MAOI discontinuation before treatment can begin.

The medicine interacts pharmacodynamically with substances that depress the central nervous system. These CNS Depressants, including anaesthetics, sedatives, hypnotics, and neuroleptics (e.g., phenothiazines), may lead to potentiated CNS depressant effects and could aggravate hypotension. Due to this recognized additive effect, patients must not consume alcoholic beverages while taking the medication, as alcohol enhances these depressant outcomes.

Pharmacokinetic interactions are governed by the enzyme system responsible for Tilidine’s metabolism. Inhibition of the CYP3A4 and CYP2C19 enzymes by co-administered medicines can increase the systemic exposure of the active substance, nortilidine, which may alter the efficacy and tolerability profile as described in the prescribing information. Furthermore, a population-specific note highlights that in patients with impaired liver function, the altered metabolism may result in the insufficient formation of nortilidine and the insufficient inactivation of naloxone, modifying the intended activity ratio of the components.

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Mechanism of Action

Dual Pharmacological Action: Opioid Receptor Agonism and Monoamine Reuptake Inhibition

Valtran Retard is an opioid-receptor agonist that acts primarily on the central nervous system. Its mechanism involves binding to mu-opioid receptors in the brain and spinal cord, resulting in the inhibition of adenylyl cyclase activity. This action inhibits presynaptic release of neurotransmitters, thus decreasing signal propagation in ascending pathways. The drug entity also exerts a secondary action by inhibiting the neuronal reuptake of norepinephrine and serotonin. This dual action involves mu-opioid receptor agonism and monoamine reuptake inhibition. The resultant consequence is a reduced overall level of central nervous system excitability and a decrease in nociceptive signal processing.

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Dosage and Administration Information

Valtran Retard is a prolonged-release tablet and is taken orally (by mouth). Standard administration requirements apply to ensure the medicine's correct use.

Administration Requirements

Administration Aspect Instruction
Dose Form Integrity The tablets must be swallowed whole with sufficient liquid. They must not be chewed, crushed, or split.
Frequency and Timing The medicine is taken twice daily (e.g., morning and evening), with a fixed interval of approximately 12 hours between doses.
In Relation to Meals Administration is independent of meals; the tablets can be taken with or without food.
Missed Dose If a dose is missed, it should not be doubled. The next dose should be taken at the next regularly scheduled time.

Dosing and Population Rules

Initial and ongoing dosing is highly individualized by a healthcare professional based on the severity of the pain. The typical starting regimen is the lowest strength tablet taken twice daily, which is then adjusted as needed up to a maximum recommended daily dose.

Special Population Adjustments are required for certain patients:

  • Hepatic Impairment: Patients with liver problems may require a dose reduction or an extension of the dosing interval to every 24 hours.
  • Elderly Patients: While no specific adjustment is automatically required for older adults, the lowest effective dose should generally be used, especially in the presence of other health issues.

The duration of treatment is determined by the prescribing physician, and the continued need for the medicine must be regularly assessed to ensure it is used for the shortest time necessary.

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Recent Clinical Evidence

Valtran Retard: Recent Clinical Evidence

Summary of Key Research Findings

This section reviews research that has explored the use of Valtran Retard in managing its target indication.

Research explores the effects of Valtran Retard on the condition. Research investigated observed changes in the condition's symptoms. Clinical trials evaluated the effects of Valtran Retard on various measures of patient outcome and quality of life.


Safety and Tolerability Profile

Studies have monitored the tolerability of Valtran Retard during long-term use. Studies reported the most commonly observed adverse events in trials as [List 3 Common Side Effects].

  • Common Adverse Events: [Side Effect 1], [Side Effect 2], [Side Effect 3]
  • Serious Adverse Events: Serious events were reported in [Percentage]% of the study population, including [Serious Event 1] and [Serious Event 2].

Studies have evaluated the effects and tolerability of Valtran Retard in pediatric populations aged 12 and above.


Efficacy Data from Clinical Trials

Randomized Controlled Trials (RCTs)

RCTs evaluated the effect of Valtran Retard on patient mobility and measures of chronic pain, compared to standard treatments.

  • Primary Endpoint: The primary efficacy endpoint used in most key trials was a change in the [Name of Rating Scale] score after [Number] weeks of assessment.
  • Key Findings: Phase 3 trials reported that participants receiving Valtran Retard had a mean change of [Number] points on the [Name of Rating Scale] compared to a mean change of [Number] points in the placebo group.
  • Complications: Research has also examined the incidence of secondary complications among participants receiving Valtran Retard.

Population Studies

Research has examined the pharmacokinetics and needs in specific populations. Clinical research reported findings in participants with liver impairment, noting [Insert Dosage Adjustment/Finding].


Conclusion of Research Overview

In summary, research continues to investigate the clinical profile of Valtran Retard for its indication.

Key Studies & References

  1. Phase 3 Randomized, Double-Blind Study of Valtran Retard in Chronic Pain (The VAL-301 Trial)
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Frequently Asked Questions (FAQ)

Common questions about Valtran Retard (FAQ)


Q: Is Valtran Retard the same as Valtran (the non-Retard immediate-release version)?

A: The core active ingredients are chemically identical. However, official product information indicates that the 'Retard' version is a prolonged-release tablet formulation. This specialized formulation leads to differences in how the drug is absorbed and the frequency of use compared to immediate-release forms.


Q: Why is Valtran Retard used for long-term pain instead of short-term or acute pain?

A: According to official product labeling, this specific formulation is indicated for the long-term management of chronic pain. The prolonged-release mechanism is designed to provide stable, around-the-clock pain relief, which is necessary for chronic conditions.


Q: Is Valtran Retard used to treat only severe pain, or can it be used for moderate pain?

A: Official regulatory documents indicate that the medication is authorized for the treatment of pain categorized as moderate to severe. It is classified as a weak opioid analgesic (WHO Level II).


Q: How quickly does Valtran Retard start working after a dose is taken?

A: Studies on the active ingredients show that the initial analgesic effect typically begins 10 to 15 minutes after a dose. The maximum pain-relieving effect is generally reached in approximately 25 to 50 minutes following oral administration.


Q: Is it normal to not feel the full effect immediately?

A: Due to the sustained-release mechanism, the full analgesic effect is not immediate. The maximum analgesic benefit is generally achieved after 25 to 50 minutes as the active substance is processed by the body and reaches its peak concentration.


Q: Does taking Valtran Retard for a long time lead to physical dependence?

A: Regulatory guidance on this class of medicine indicates that physical dependence may occur with repeated daily use over a period of time. This is a known adaptive process of the body to continuous opioid exposure, as described in regulatory warnings.


Q: What is the typical risk of developing tolerance to Valtran Retard?

A: Official information states that tolerance is an expected occurrence with long-term use of this class of medication. Tolerance is defined as a reduced responsiveness to the drug, which may lessen the analgesic effect over time.


Q: Are the common side effects associated with Valtran Retard permanent?

A: The most common side effects listed in the official product information, such as nausea and vomiting, are generally reported to occur at the beginning of treatment. These effects are generally considered transient and may lessen over the course of treatment.


Q: Is constipation a very common side effect of this medication, and why?

A: Constipation is a common side effect associated with most opioid medicines. However, the combination of active ingredients in Valtran Retard includes naloxone, which is included in the formulation with the intent to mitigate the risk of opioid-induced constipation.


Q: What are the official warnings about the signs of withdrawal associated with this type of medicine?

A: Official warnings state that withdrawal symptoms can occur upon abrupt discontinuation or rapid dose reduction. Signs can include body aches, fever, sweating, chills, anxiety, and gastrointestinal symptoms like vomiting or diarrhea.


Q: What are the official safety classifications regarding operating machinery or driving while taking Valtran Retard?

A: The medicine can cause central nervous system effects such as dizziness, drowsiness, or lightheadedness. Official safety classifications caution against driving or operating hazardous machinery until an individual is certain how the medicine affects their judgment and motor skills.


Q: Does Valtran Retard interact with common over-the-counter cold or flu medications?

A: Official interaction warnings advise caution when combining this medicine with other products that cause sedation or drowsiness. Many over-the-counter cold and flu medications contain ingredients that can increase these depressant effects, raising the risk of potentially serious side effects.


Q: Is there a problem combining Valtran Retard with common herbal supplements like St. John's wort?

A: Some herbal supplements, such as St. John's wort, can affect the liver enzymes that process the active ingredient. Official documents indicate that this interference may alter the drug's effectiveness or its tolerability profile.


Q: Is it possible for Valtran Retard to interact with blood thinners like warfarin?

A: Due to the potential for interactions, the use of this drug alongside medicines that affect blood clotting, such as warfarin, requires careful management. Regulatory information indicates that interactions affecting the drug's metabolism are possible.


Q: Does this medicine affect blood pressure levels or heart rate?

A: Official listings of undesirable effects show that the medication can affect the cardiovascular system. Reported effects include changes in blood pressure (low or high) and heart rate (e.g., faster heart rate, known as tachycardia).


Q: Are there known drug interactions with common types of antidepressants (SSRIs or SNRIs)?

A: Official warnings indicate a risk of Serotonin Syndrome when used with other serotonergic drugs, including common antidepressants such as SSRIs and SNRIs. Serotonin Syndrome is a potentially serious condition affecting the central nervous system.


Q: Is there a maximum duration of time this medicine can be used according to regulatory guidance?

A: The medicine is indicated for the long-term treatment of chronic pain. However, regulatory guidance requires that the necessity of continued opioid therapy be regularly reassessed by the prescribing authority.


Q: Is it true that Valtran Retard is classified as a controlled substance in the region of use?

A: Yes, the active ingredient, Tilidine, is classified by national authorities as a controlled substance. This classification means the drug is subject to special governmental restrictions and controls regarding its prescribing, dispensing, and secure storage.


Q: Why do some online sources report concerns about addiction, and how does this compare to official documents?

A: Official regulatory documents explicitly state that this medication exposes patients and other users to the risks of opioid addiction, abuse, and misuse. Official warnings about these risks are included to guide appropriate prescribing and patient management.

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How should Valtran Retard be stored and disposed of?

The storage and disposal instructions for Valtran Retard are based on regulatory requirements to ensure product stability and safety. The medicine must be stored under controlled conditions and disposed of as regulated pharmaceutical waste.

Official Storage Requirements

Requirement Specific Condition
Temperature Store below 30°C.
Container Keep in the original container to protect from moisture.
Child Safety Must be kept out of the sight and reach of children.

Disposal of Unused Product

Unused or expired Valtran Retard tablets must not be disposed of via household trash or flushed down wastewater. Disposal must be carried out in accordance with local requirements for unused medicinal products. This ensures proper environmental protection, as mandated by official labeling.

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

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