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Tramal Retard

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Tramal Retard

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Treatment option: Pain

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.

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Overview of Tramal Retard

What is Tramal Retard?

Tramal Retard is a medicinal product used for the management of moderate to severe pain. It belongs to a class of medications known as opioid analgesics, which work by acting on the central nervous system to alter how the body perceives and responds to pain.

Composition and Mechanism

The active substance in this medication is tramadol hydrochloride. Unlike immediate-release formulations, the "Retard" designation indicates that this is a prolonged-release tablet. The tablet is engineered to release the active ingredient gradually over an extended period. This mechanism allows for a more consistent concentration of the medication in the bloodstream and typically requires less frequent administration compared to standard formulations.

Therapeutic Use

Tramal Retard is utilized when continuous, around-the-clock pain relief is required for an extended duration. It is commonly used for chronic pain conditions where non-opioid pain relievers have proven insufficient. Because it targets specific receptors in the brain and spinal cord, it provides a systemic approach to pain management.

Physical Characteristics

As a prolonged-release oral treatment, the medication is usually provided in tablet form. These tablets are designed to be swallowed whole to maintain the integrity of the controlled-release system, ensuring the medication is distributed as intended by the pharmaceutical design.

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What side effects are possible with Tramal Retard?

Possible Side Effects and Safety Information

The safety information for this medicine, as documented in regulatory sources, highlights a comprehensive range of adverse reactions and specific limitations, particularly those associated with opioid medications.

Serious and Clinically Significant Risks

Official documents emphasize several serious, potentially life-threatening risks:

  • Respiratory Depression: Serious, life-threatening, or fatal slow or shallow breathing can occur, especially when starting treatment or after a dose increase. This is the highest-priority safety risk.
  • Addiction, Abuse, and Misuse: The medicine carries a risk of addiction, abuse, and misuse, which can lead to overdose and death. Tolerance, physical dependence, and psychological dependence can develop with repeated use.
  • Serotonin Syndrome: A potentially life-threatening condition reported with tramadol alone or, more commonly, when taken with other medicines that affect the serotonin system.
  • Seizure Risk: Seizures have been reported, even at recommended doses. The risk may increase in patients with a history of seizures or with the concurrent use of other drugs that lower the seizure threshold.
  • Neonatal Opioid Withdrawal Syndrome (NOWS): Prolonged use during pregnancy can result in physical dependence in the newborn, leading to NOWS.

Common and Uncommon Adverse Reactions

The most commonly reported side effects (Very Common, greater than 1 in 10 patients) include nausea and dizziness. Common effects (1 in 10 to 1 in 100 patients) include somnolence (sleepiness), headache, constipation, vomiting, dry mouth, and increased sweating.

Safety-Related Restrictions

The medicine is contraindicated in patients with acute intoxication from alcohol, hypnotics, opioids, or psychotropic drugs, and in children younger than 12 years of age. Concurrent use with benzodiazepines or other CNS depressants, including alcohol, is severely restricted due to the increased risk of profound sedation, respiratory depression, coma, and death. Patients who are classified as ultra-rapid metabolizers due to a specific enzyme variation (CYP2D6 polymorphism) are at risk of life-threatening respiratory depression and should not use the medicine.

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Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documents state that an overdose of Tramal Retard may present with manifestations of both opioid and serotonergic toxicity, requiring specific emergency responses.

Documented Clinical Manifestations

Overdose may be characterized by signs of opioid toxicity, including respiratory depression (slowed or shallow breathing), miosis (pinpoint pupils), and severe Central Nervous System (CNS) depression ranging from somnolence to coma. Life-threatening outcomes listed include respiratory arrest and cardiovascular collapse. Additionally, the regulatory profile explicitly documents the risk of seizures (convulsions) and the development of potentially fatal Serotonin Syndrome.

Immediate Emergency Actions

A suspected overdose requires the user to seek immediate medical attention. If severe symptoms such as unresponsiveness, markedly slowed breathing, or convulsions occur, contact emergency services immediately. Management requires symptomatic and supportive treatment, including maintenance of a patent airway and supportive ventilation. Naloxone may be administered to address respiratory depression, although regulatory caution notes that this may increase the risk of seizures. Due to the extended-release formulation, prolonged hospital monitoring may be required to observe for continued drug absorption.

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Therapeutic Uses of Tramal Retard

What Tramal Retard Treats: Main Uses and Benefits

Tramal Retard is commonly used to help manage symptoms related to moderate to severe physical discomfort, particularly those associated with ongoing conditions such as osteoarthritis, various forms of chronic back pain, and other musculoskeletal pain. The extended-release formulation may assist with managing symptoms related to severe and persistent pain in patients who require pain medication for a long period of time.


Symptomatic Relief and Benefits

This medication is applied across therapeutic domains where additional symptomatic support is needed, primarily for symptoms that create noticeable physiological strain and are not adequately managed by non-opioid pain relievers. This formulation is relevant when supportive symptom management is appropriate for symptoms that become more disruptive during flare-ups. It is relevant when supportive symptom management is appropriate, as it contributes to easing the overall symptom load during periods of heightened symptoms. The goal is to provide supportive relief when symptoms interfere with routine activities.

The medication is commonly used to help with conditions like chronic musculoskeletal pain, pain due to cancer, and pain requiring continuous daily analgesic support.

“This treatment supports the patient during difficult episodes by easing distress and contributes to improved comfort during periods of heightened symptoms.”

Quick Fact: Relief for Persistent Pain
Primary Symptom Focus Moderate to severe ongoing physical discomfort
Key Benefit Supportive symptomatic relief that may last throughout the day
Main Use Context Conditions requiring continuous, scheduled pain management

Regulatory References

  1. NIH MedlinePlus overview
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Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Tramal Retard — Official Regulatory Information

The eligibility profile for Tramal Retard is structured around absolute prohibitions, age restrictions, and conditional use criteria as defined by governmental regulatory agencies.

Classification Description based on Regulatory Labeling
Populations for whom use is allowed Adults and adolescents over the minimum age threshold (typically 12 years) are the standard population for use, provided no contraindications are present.
Populations for whom use is not recommended Use is not recommended for the extended-release formulation in patients with severe hepatic impairment or severe renal impairment (CrCl < 30 mL/min). Breastfeeding is also not recommended.
Populations for whom use is contraindicated Contraindications include children younger than 12 years of age, patients with known hypersensitivity to tramadol, acute intoxication (e.g., alcohol, opioids), those taking MAO inhibitors, and patients with uncontrolled epilepsy.
Age-related eligibility rules Use is contraindicated in adolescents under 18 years following tonsillectomy or adenoidectomy. Older adults (over 75 years) should be used with caution.
Pregnancy and lactation eligibility Pregnancy: Not recommended for long-term use due to the risk of Neonatal Opioid Withdrawal Syndrome. Lactation: Not recommended due to potential infant risk.

Regulatory documents define eligibility by establishing absolute contraindications based on age or clinical state, while imposing conditional restrictions based on the patient's physiological capacity (renal/hepatic function) and pre-existing clinical risk factors. Use is determined by the absence of all formal prohibitions and the patient's status within restricted-use populations.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

This section describes official interaction patterns documented in government regulatory sources, which impose mandatory restrictions on the use of Tramal Retard.


Interaction-Related Restrictions

Classification Official Regulatory Stated Basis
Contraindicated Combinations Co-administration is prohibited with Monoamine Oxidase Inhibitors (MAOIs), requiring a 14-day separation period documented in regulatory text. It is also prohibited with other tramadol-containing products and alcohol (ethanol) due to the enhanced risk of central nervous system (CNS) depression and respiratory depression.
Population Contraindication The use of tramadol is formally contraindicated in CYP2D6 ultra-rapid metabolizers due to the increased risk of life-threatening respiratory depression related to metabolism.

Documented Pharmacokinetic and Pharmacodynamic Interactions

Co-administration with serotonergic drugs (e.g., SSRIs, SNRIs) or other substances that lower the seizure threshold results in a documented pharmacodynamic interaction that enhances the risk of Serotonin Syndrome and seizures. Substances that inhibit the CYP2D6 or CYP3A4 enzymes (e.g., Quinidine, Ketoconazole) cause a pharmacokinetic interaction that increases the plasma concentration of the parent drug, tramadol. Conversely, strong CYP3A4 inducers (e.g., Carbamazepine) reduce tramadol exposure, potentially causing a reduced analgesic effect. This profile establishes specific constraints regarding combined use based on the drug's metabolic and synergistic properties.

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Mechanism of Action

How Tramal Retard Works

The Dual-Acting Mechanism of Action

The compound engages two principal pathways simultaneously. The primary action involves agonism at the mu-opioid receptor (mu-OR), mainly mediated by the active metabolite O-desmethyl-tramadol (M1). The secondary action involves the inhibition of reuptake for the neurotransmitters Serotonin and Norepinephrine. This coordinated engagement with both the opioid and monoaminergic systems allows the compound to modulate key pathways associated with heightened physiological responses.

Metabolic Activation and Pathway Modulation

The affinity and subsequent activation of the mu-OR is dependent on the conversion of the parent drug by the CYP2D6 enzyme into the M1 metabolite. Simultaneously, the parent drug's action of increasing Serotonin and Norepinephrine in the central nervous system enhances the activity of the Descending Inhibitory Pathway. This dual-level mechanistic cascade modifies molecular steps that shape systemic physiological outcomes and alters the equilibrium of signaling within the targeted pathways.

Resulting Physiological Modulation

By initiating or suppressing signaling sequences via these two distinct mechanisms, the compound contributes to reducing neuronal excitability and increasing the activity of endogenous inhibitory controls on ascending signals. This process leads to predictable physiological adjustments that shape the compound's effect profile, which results in a centralized modulation of signaling within the nociceptive system.

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Dosage and Administration Information

The administration of Tramal Retard (extended-release tramadol hydrochloride) is defined to ensure the sustained therapeutic effect of the prolonged-release tablet. The only approved route of administration for this formulation is oral.


Official Administration and Dosing

Parameter Official Guideline
Tablet Integrity The extended-release tablet must be swallowed whole with sufficient liquid; it is forbidden to break, crush, chew, or split the tablet.
Dosing Frequency The medication is taken either once daily or twice daily to provide around-the-clock pain management.
Timing & Food Doses may be taken with or without food, but must be administered in a consistent manner (at the same time each day) to maintain stable drug levels.

Labeled Dosing Regimens and Adjustments

Dosing is initiated at a low level, such as 100 mg per day, and is gradually adjusted based on the patient's requirement. The maximum daily dose varies: standard protocols list 300 mg per day, while other guidelines permit up to 400 mg per day under specific conditions.

Population-specific rules mandate cautious use in older adults. For patients over 75 years or those with reduced renal or hepatic function, the dosage interval should be extended. Use is generally not recommended in cases of severe organ impairment. The total duration of use should be the shortest necessary, and the dose should be gradually tapered upon cessation to prevent withdrawal.

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Recent Clinical Evidence

Research evidence / Overview of studies for Tramal Retard

Research has explored the characteristics of the extended-release formulation in adults experiencing moderate to severe ongoing physical discomfort. The majority of the core research consists of Randomized Controlled Trials (RCTs), where the medicine was observed in comparison against an inactive substance (placebo), and large-scale reviews known as Systematic Reviews and Meta-analyses that pool data from multiple trials. These studies measured patient-reported outcomes describing perceived discomfort and functional capacity. The overall evidence base has been classified by scientific reviewers as having a Moderate classification for the weight and consistency of the evidence.


Evidence for Use in Chronic Low Back Pain

Research has examined the activity of this extended-release formulation in adult patients with chronic low back pain that is often described as lasting six months or longer. The studies were conducted during periods of increased symptom activity and examined outcomes related to physical discomfort, functional metrics, and the quality of sleep, as reported by patients.


Evidence for Use in Osteoarthritis Pain

Research focused on adult patients with moderate to severe pain stemming from Osteoarthritis of the knee and/or hip. The research structure relies on short-term RCTs and comprehensive Systematic Reviews. These studies measured patient-reported outcomes describing perceived discomfort, changes in physical function, and overall global assessments of patient-reported status.


Follow-up Duration and Characterization of Long-Term Use

Trial follow-up periods are typically short-term, covering up to 12 weeks of observation for the primary comparative assessment. Long-term effects are not fully established by these core studies. While some subsequent open-label studies have observed patient responses for longer durations, the controlled, comparative evidence necessary to characterize the durability of response or long-term symptom patterns is limited.


What is Still Uncertain About the Research Evidence

The available evidence highlights what is known—and what is still uncertain—about the research regarding this medicine. The consistent use of an initial screening or run-in phase in many trials means that the study population may exclude individuals who did not meet initial tolerability criteria. This impacts the generalizability of the final findings to the broader patient population starting the medicine. Furthermore, the core evaluative evidence is limited for special groups, including children and pregnant or nursing populations.

Key Studies & References

  1. Tramadol hydrochloride extended-release tablet - DailyMed (NIH/NLM)
  2. Tramadol for chronic noncancer pain: a meta-analysis of effectiveness and side effects - CMAJ
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Frequently Asked Questions (FAQ)

Common questions about Tramal Retard (FAQ)


Q: Can Tramal Retard be used for nerve pain?

Studies and official information indicate that the active ingredient, tramadol, has been examined for various chronic pain conditions, including those that involve neuropathic pain components. This may include conditions such as diabetic neuropathy and fibromyalgia. The appropriate use of the medicine is determined by a healthcare provider based on the patient’s diagnosis.


Q: How long does it take for Tramal Retard to start working?

The extended-release design means the medicine is released slowly over time. Regulatory pharmacokinetic data indicates the time it takes to reach its maximum concentration (peak level) in the blood is approximately 4.9 hours for the prolonged-release formulation. This prolonged-release profile is intended to provide sustained relief throughout the day.


Q: Are there any common over-the-counter medicines that interact with Tramal Retard?

Official prescribing information advises caution when taking Tramal Retard with other medicines, including over-the-counter products. This is because certain drug classes, such as serotonergic agents or those that affect liver enzymes (CYP2D6 or CYP3A4), can cause harmful interactions. Official guidance emphasizes the need to review all current medications with a healthcare provider.


Q: Can Tramal Retard affect my sleep?

According to the official product information, common side effects can include sleepiness, known as somnolence. Like other opioid medicines, the use of Tramal Retard may also lead to or worsen sleep-related breathing problems, such as sleep apnea (pauses in breathing during sleep).


Q: What foods or supplements should be avoided while taking Tramal Retard?

Official regulatory documents indicate that doses may be taken either with or without food. There are no general food restrictions associated with the medicine. However, because certain herbal supplements may interact with the drug’s metabolism, official guidance suggests that a healthcare provider should be informed about all supplements being taken.


Q: Is Tramal Retard safe to use for older adults?

Official prescribing information indicates that the medicine should be used with caution in older adults. For patients over 75 years of age, the dosage interval may need to be adjusted. Furthermore, some clinical criteria identify the drug as requiring caution in adults 65 years and older due to potential risks such as hyponatremia (low sodium levels).


Q: What are the risks of using Tramal Retard long-term?

Regulatory documents clearly state that prolonged use is associated with a risk of developing tolerance, physical and psychological dependence, and addiction. Studies examining long-term patient response indicate that most adverse events are typically mild and occur within the first month of treatment. Official guidance emphasizes that the medication should be used for the shortest necessary duration.


Q: Are there different strengths of Tramal Retard available?

The prolonged-release tablets are generally available in multiple strengths to accommodate individual pain relief requirements. Available strengths may include 50 mg and 100 mg tablets, with other dose options offered in different regions.


Q: Can Tramal Retard affect my ability to drive or operate machinery?

Yes, official warnings emphasize that the medicine can affect your ability to drive or operate machinery. This warning is based on potential side effects, including drowsiness, dizziness, and blurred vision. Due to these potential effects, caution is advised before engaging in tasks that require concentration, such as driving or operating machinery.


Q: Is there a generic version of Tramal Retard?

The active ingredient in Tramal Retard is Tramadol Hydrochloride. Since tramadol is the generic name for the compound, generic versions of the prolonged-release formulation are available under various authorized trade names worldwide.


Q: Do regulatory agencies classify Tramal Retard as a controlled substance?

The active ingredient, tramadol, is classified as a 'step II' opioid analgesic according to the World Health Organization (WHO) pain treatment ladder. Furthermore, regulatory agencies in many countries have scheduled the medicine as a controlled substance due to its risk profile for dependence and abuse.


Q: What are the symptoms of an overdose of Tramal Retard?

Regulatory documents on overdose management list severe symptoms such as central nervous system (CNS) depression, leading to coma, seizures, and cardiovascular collapse. The most dangerous potential symptom is life-threatening respiratory depression, which can result in respiratory arrest.


Q: Does Tramal Retard affect blood pressure?

Official product information notes potential cardiovascular effects. While direct blood pressure effects are not highlighted as common, symptoms of adrenal insufficiency, which is a rare but serious adverse effect, can include low blood pressure.


Q: Why are people with head injuries advised against using Tramal Retard?

The use of opioid analgesics, including Tramal Retard, is often advised against in the context of head injuries. This caution is due to the medicine's association with central nervous system (CNS) depression and respiratory risk, which may complicate the evaluation of a head injury and worsen potential outcomes.


Q: Is Tramal Retard used to treat fibromyalgia?

Studies have examined the efficacy of the active ingredient, tramadol, in managing chronic pain associated with various conditions. This includes research that has focused on patients experiencing pain from conditions such as fibromyalgia.


Q: What happens if I crush or chew a Tramal Retard tablet?

Official regulatory warnings strictly forbid crushing, breaking, or chewing the prolonged-release tablet. Doing so destroys the extended-release mechanism, which then allows the entire dose to be released immediately. This rapid release can lead to a potentially fatal overdose of the medicine.


Q: Can Tramal Retard be taken with other pain medications like paracetamol?

Studies and regulatory approvals indicate that the active ingredient, tramadol, can be combined with pain medications such as paracetamol (acetaminophen). This is evidenced by the existence of combination products containing both medicines. However, any co-administration is generally advised to be done under the guidance of a healthcare professional.


Q: Is Tramal Retard an anti-inflammatory drug?

No, according to its pharmacological classification, Tramal Retard is a centrally acting opioid analgesic. It is not classified as a Non-Steroidal Anti-Inflammatory Drug (NSAID) and therefore does not possess anti-inflammatory properties.


Q: Can I take Tramal Retard if I have asthma or breathing problems?

Official regulatory documents state that the medicine is formally contraindicated in patients who have acute or severe bronchial asthma. This strict warning is due to the risk of life-threatening respiratory depression, particularly in unmonitored settings.

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How should Tramal Retard be stored and disposed of?

Storage and Disposal of Tramal Retard

Tramal Retard (tramadol extended-release) must be stored and discarded according to official procedures to prevent harm from accidental exposure or misuse.

Requirement Category Official Requirement
Storage Conditions Store in a closed container at room temperature, generally below 30°C.
Protection The product must be kept from freezing and protected from light and moisture.
Child Safety It is mandatory to store the medicine out of the reach of children in a secure place, as accidental ingestion can result in fatal overdose.
Product Stability Stability data indicates the tablets are stable for at least 3 years under specified storage conditions.
Disposal Instructions Unused or expired Tramal Retard should be taken immediately to an authorized drug take-back location or, if unavailable, flushed down the toilet as per official guidance for certain high-risk medications. Do not keep outdated medicine.

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

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Equivalent of Tramal Retard found in:

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