Durela

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Durela

Treatment option: Pain, Chronic Pain

Medically reviewed

Marina Burgos

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 Durela

Quick Facts

Property Description
Active ingredient Tramadol Hydrochloride
Form Extended-Release Capsule
Pharmacological class Opioid Analgesic (Centrally Acting Synthetic)
Common use Management of moderate to moderately severe pain
Origin Synthetic Compound

What Type of Medicine is Durela and What Does it Contain?

Durela is a prescription-only synthetic medication classified as a centrally acting synthetic opioid analgesic. It is a single-ingredient product containing Tramadol Hydrochloride as its active pharmaceutical component, a compound that is manufactured rather than derived from a natural source. This classification places Durela within the broader group of opioid analgesics. Tramadol is a centrally acting analgesic, often cited for its ability to treat pain. Furthermore, Tramadol Hydrochloride is clinically recognized for its dual-action mechanism, which involves both activating mu-opioid receptors and modulating key neurotransmitters, a feature that differentiates it within its class.


Understanding the Extended-Release Capsule Form

The physical form of Durela is an Extended-Release Capsule designed for administration via the oral route. This sustained-release formulation is engineered to release the active ingredient, Tramadol Hydrochloride, consistently into the body over a prolonged duration. This design distinction contrasts with immediate-release forms, which provide quick but short-term pain relief. This form is used for continuous, around-the-clock management of pain. This long-acting format is distinctively positioned for patients who require uninterrupted pain coverage, avoiding the peaks and troughs associated with short-acting medications.


General Purpose: Pain Management for Adults

The general purpose of Durela is the provision of continuous pain management for moderate to moderately severe pain in adults. The long-acting profile of the extended-release capsule is particularly suited for individuals with chronic pain who require a consistent background level of relief. For example, it is used to manage persistent discomfort where the need for continuous analgesic effect is necessary throughout the day. By leveraging its two complementary mechanisms, the medicine provides a foundational analgesic efficacy intended to manage ongoing discomfort.

What side effects are possible with Durela?

Possible Side Effects and Safety Information

Official regulatory documents classify the possible adverse effects of Tramadol Hydrochloride (the active ingredient in Durela) based on their frequency of occurrence and the physiological systems affected. These safety classifications establish the medicine's risk profile.

Frequency-Classified Adverse Reactions

The most frequently reported effects, classified as Very Common (ge 1/10) in regulatory labels, include dizziness and nausea. Effects listed as Common (ge 1/100 to < 1/10) often affect the gastrointestinal system (e.g., vomiting, constipation, dry mouth) or the nervous system (e.g., headache, somnolence, or drowsiness). Effects classified as Uncommon or Rare may involve the cardiac system (e.g., palpitations, tachycardia), or the skin (e.g., pruritus, rash).

Serious Adverse Reactions and Safety Restrictions

Official labeling documents highlight specific rare but clinically critical reactions. These serious adverse reactions include respiratory depression, seizures (convulsions), and severe allergic reactions such as anaphylaxis. Regulatory safety profiles note that the risk of nausea and dizziness is often reported to be more common at the beginning of treatment.

Safety restrictions, or contraindications, prohibit the use of the medicine in certain conditions, including severe respiratory depression, severe hepatic or renal impairment, and concurrent use with Monoamine Oxidase Inhibitors (MAOIs). For specific groups, such as older adults (aged 75 years and over), the regulatory profile notes that clearance may be reduced, necessitating cautious management.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory profile for Durela (Tramadol Hydrochloride) overdose focuses on severe, life-threatening physiological events that require immediate professional intervention.


Documented Overdose Manifestations

Key Component Official Regulatory Statement
Documented Manifestations Respiratory depression, profound sedation, seizures, severe hypotension, miosis (pinpoint pupils), and progression to coma and death are documented outcomes.
Life-Threatening Risk The highest risk is fatal respiratory depression. Serotonin Syndrome is also listed as a potentially life-threatening complication that can occur in overdose.
Pediatric Risk Accidental ingestion of even one dose, especially by a child, can result in a fatal overdose and must be treated as an extreme emergency.

Required Emergency Actions

Management for Durela overdose is primarily symptomatic and supportive. Regulatory information stresses that the effects of Tramadol may be not completely reversed by naloxone, an opioid antagonist. Due to the high risk of life-threatening respiratory depression and coma, immediate medical attention must be sought for any suspected overdose or accidental ingestion, as stated in the official prescribing information. The regulatory profile mandates that the drug must be discontinued if Serotonin Syndrome is suspected.

Therapeutic Uses of Durela

This medication is commonly used in clinical settings for the management of moderate to moderately severe chronic pain in adults requiring continuous symptomatic support over time. Its therapeutic domain involves easing the persistent discomfort associated with long-term conditions like osteoarthritis and chronic low back pain.

The core use of the extended-release formulation supports stable, sustained symptomatic relief, contributing to easing the overall symptom load. This approach is relevant for managing symptoms that interfere with daily functioning and create noticeable physiological strain. The long-acting nature of the therapy helps patients cope more steadily with symptom fluctuations, which may assist with the patient's general comfort. This steady support is applied in addressing symptoms that interfere with daily functioning and may assist with maintaining functional stability, helping patients support general well-being during symptomatic phases.


Quick Fact: Management of Moderate Chronic Pain
Primary Target Moderate to moderately severe chronic pain
Symptom Goal Sustained symptomatic support
Benefit Focus Assists with maintaining functional stability

Eligibility and Restrictions for Use

Durela (Tramadol Extended-Release) is approved for use in adults who require daily, around-the-clock opioid treatment for pain. Official regulatory labeling establishes several populations for whom use is strictly contraindicated.


Official Eligibility Status

Category Regulatory Status
Absolute Contraindications Contraindicated in patients with significant respiratory depression, acute or severe bronchial asthma, known or suspected gastrointestinal obstruction (including paralytic ileus), or a known hypersensitivity to tramadol. Use is also contraindicated in individuals taking Monoamine Oxidase Inhibitors (MAOIs) or within 14 days of MAOI cessation.
Pediatric Eligibility Contraindicated in children younger than 12 years of age for all uses. Use is also contraindicated in patients younger than 18 years following tonsillectomy and/or adenoidectomy.
Major Organ Impairment Not recommended for patients with severe renal impairment (creatinine clearance < 30 mL/min) or severe hepatic impairment (Child-Pugh Class C). The extended-release formulation does not permit the dosing flexibility required for safe use in these groups.
Pregnancy/Lactation Use during pregnancy is not recommended due to the risk of neonatal opioid withdrawal syndrome. Use is contraindicated in breastfeeding women due to potential serious adverse reactions in the infant.

The regulatory profile defines strict exclusionary boundaries for use, limiting the medicine to appropriate adult populations while prohibiting its use in several high-risk groups.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Durela (Tramadol Hydrochloride Extended-Release) is structured around documented pharmacokinetic and pharmacodynamic constraints. This information strictly defines substances that interact and the resulting formal restrictions.

Regulatory Interaction Classifications

Contraindicated Combination: Concomitant use with Monoamine Oxidase Inhibitors (MAOIs) is strictly prohibited and must be separated by a mandatory 14-day period.

Pharmacodynamic Risk: Official labeling documents an increased risk of profound sedation, respiratory depression, coma, and death with co-administration of other Central Nervous System (CNS) depressants, including alcohol. Furthermore, co-administration with serotonergic agents or drugs that lower the seizure threshold (e.g., SSRIs) increases the formal risk of Serotonin Syndrome and seizures.

Pharmacokinetic Exposure Alterations: Interactions occur via the CYP2D6 and CYP3A4 enzyme systems. CYP2D6 inhibitors (e.g., fluoxetine) are documented to increase the concentration of the parent drug while reducing levels of the active M1 metabolite. Conversely, CYP3A4 inducers (e.g., Carbamazepine) increase metabolism, resulting in officially documented lower drug exposure and reduced efficacy.

Population-Specific Risk: The profile notes a Population-Specific caution for CYP2D6 Ultra-Rapid Metabolizers. This genetic status results in officially documented higher exposure to the M1 metabolite and increased risk of respiratory depression.

Mechanism of Action

How Durela Works: Mechanism of Action

Durela (Tramadol Hydrochloride) operates through a synergistic dual mechanism, modulating two fundamental systems in the central nervous system to modulate nociceptive signal transmission.


Central mu-Opioid Receptor Engagement

This mechanism involves the drug acting as an agonist on the mu-Opioid Receptor (MOR), primarily within the brain and spinal cord. MOR activation initiates an inhibitory signaling cascade at the neuronal level, leading to the hyperpolarization of afferent neurons. This results in the physiological consequence of reduced afferent signal transmission by limiting the ability of these neurons to relay nociceptive input.


Augmentation of Descending Pathway Neurotransmitters

Concurrently, Durela modulates nociceptive signaling by blocking the reuptake of both norepinephrine (NE) and serotonin (5-HT). Inhibition of the NET and SERT proteins increases the synaptic concentration of these neurotransmitters. This physiological change potentiates the activity of the Descending Inhibitory Pain Pathways, which increases the functional output of central pathways for attenuating nociceptive signals at the spinal level.


Synergy of Dual Mechanism

The simultaneous engagement of the mu-Opioid Receptors and the monoaminergic pathways creates a coordinated inhibitory effect on central nociceptive processing. The final result represents a synergistic physiological response where the combined modulation of signal transmission and signal suppression optimizes the overall effect profile.

Dosage and Administration Information

How Durela is Used


Durela (Tramadol Hydrochloride Extended-Release Capsule) is administered orally and is designed for once-daily dosing to provide continuous, around-the-clock pain management. The extended-release formulation dictates that the medicine must be swallowed whole with liquid and should never be crushed, chewed, dissolved, or split, as this action would compromise its sustained-release function and lead to an uncontrolled dose release.

Official Dosing and Administration Protocol

The established regimen involves starting at a low dose and adjusting upward according to a set schedule. For patients not currently taking an opioid, the usual starting dose is 100 mg once daily. The dose may then be individually increased in 100 mg increments after a minimum interval of five days has passed to achieve the appropriate level of support. The maximum recommended daily dose for the extended-release form is 300 mg per day.

Administration is flexible with regard to food; the capsule can be taken with or without a meal. However, patients should maintain a consistent administration pattern (always with food or always without food) each day to help stabilize drug levels.

Population-Specific Use

Special administration principles apply to certain populations. Dosing should be initiated cautiously in older adults, especially those over 75 years, due to changes in drug elimination patterns. Furthermore, the extended-release formulation is not recommended for patients with severe renal impairment (creatinine clearance less than 30 mL/min) because the limited dosing flexibility of the capsule form cannot safely accommodate the required dose reductions.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Durela

This section describes the structure of the clinical research and evidence base for Durela (extended-release tramadol hydrochloride), focusing on the specific conditions, outcomes, and patient groups that research examined. This information helps contextualize how patients reported their experience in clinical settings, but does not offer personal predictions or advice.


Evidence from Clinical Trials for Osteoarthritis Pain

The primary body of research related to Durela for osteoarthritis pain includes short-term, randomized controlled trials (RCTs). These studies typically compared the medication against a placebo in adults experiencing chronic physical discomfort, usually involving the knee or hip joint. Research examined conditions where symptoms may vary in intensity and are marked by functional limitations.

Key measurements monitored in these trials included outcomes related to physical discomfort (pain intensity) and outcomes reflecting daily functioning or activity level (assessed via indices like the WOMAC Osteoarthritis Index). Findings describe patterns observed in the studies where measurements for pain and physical function often differed between the Durela group and the placebo group over the defined time intervals. Research highlights changes measured during the study period, indicating how patients’ self-reported discomfort evolved.


Evidence from Clinical Trials for Chronic Low Back Pain

The evidence for the management of chronic low back pain also includes controlled research designs. Studies monitored adult patient groups with chronic low back pain, a condition involving periods of heightened symptoms. The research focused on outcomes related to systemic or functional imbalance associated with persistent discomfort.

Data show patterns related to the tracked outcomes, reporting that the measurements for pain and function changed over the course of the research period. Findings contribute to the broader evidence landscape by describing short-term changes. It is important to note that many trials reported high rates of patient withdrawal, which affects how the remaining data are contextualized.


Long-Term Data and Follow-Up Duration

Most randomized, controlled trials for Durela have follow-up durations that were limited to the short term, typically 12 weeks or less. Therefore, there is limited information for long-term outcomes that would describe the sustained consistency of the observed measurements over periods of six months to a year or more. The overall long-term effects are not fully established through extensive, controlled data, and certainty remains low regarding the durability of the effect.

Frequently Asked Questions (FAQ)

Common questions about Durela (FAQ)


Q: If I miss a dose of Durela, what do official instructions say I should do?

Official drug labels state that Durela should be taken once daily at approximately the same time every day. General instructions for extended-release opioids advise taking the missed dose only if there is still enough time until the next scheduled dose. Regulatory warnings state that taking two doses at once should be avoided due to the risk of accidental overdose.

Q: Is it true that Durela can cause weight changes?

Weight changes are not typically listed among the most commonly (Very Common or Common) reported side effects in the regulatory documents for Tramadol Extended-Release. Regulatory documents advise that any concerns about physical changes, including weight, should be addressed with a prescribing healthcare professional.

Q: Can Durela be taken with common over-the-counter pain relievers?

Regulatory documents primarily focus warnings on interactions with CNS depressants, serotonergic agents, and specific enzyme inhibitors. There are generally no stated contraindications against using Durela with common over-the-counter pain relievers like acetaminophen or ibuprofen. The consideration of all drug combinations, including over-the-counter products, is typically managed by a prescribing healthcare professional.

Q: Are there any known interactions between Durela and common vitamin supplements?

While specific vitamins may not have explicit warnings, the official literature requires that patients inform their doctor of all medications, including vitamins and herbal products. This is especially important because certain herbal remedies, such as St. John's wort, can increase the risk of serious side effects like Serotonin Syndrome when combined with Durela.

Q: What should be done if a severe side effect from Durela occurs?

Patient information leaflets describe serious adverse reactions that require immediate emergency medical attention. These rare but critical signs include symptoms like slow or shallow breathing, severe dizziness, confusion, or a seizure (convulsion). Official documentation states that these signs require immediate emergency medical attention.

Q: Does official guidance state that Durela can affect sleep patterns?

Yes, official documents list somnolence (drowsiness) as a common side effect, which can affect a person's wakefulness. In addition, some regulatory summaries note that sleep disturbances, including difficulty sleeping (insomnia), have been reported in patients taking the medicine.

Q: How does the official literature describe the long-term safety of Durela?

The official literature notes that most controlled clinical trials for the extended-release form were short-term, typically 12 weeks or less, meaning there is limited long-term data on sustained efficacy. The risk of addiction, abuse, and misuse is documented to persist throughout the course of long-term therapy, and the regulatory profile indicates that periodic reassessment is an essential component of the long-term management strategy.

Q: What is the official information regarding Durela use during pregnancy?

Official information states that prolonged use of Durela during pregnancy is not recommended. This is because it may result in Neonatal Opioid Withdrawal Syndrome (NOWS), which is a potentially serious condition for the newborn after birth.

Q: Do any official warnings exist about stopping Durela suddenly?

Yes, official warnings state that Durela should not be rapidly reduced or abruptly discontinued in a physically dependent patient. Stopping suddenly can result in serious opioid withdrawal symptoms and an uncontrolled return of pain. Because of this risk, official guidance describes the necessity of gradual dose reduction when discontinuing the medication.

Q: What is the relationship between Durela and liver function?

Tramadol, the active ingredient, is processed by the liver. Official labeling notes that Durela is generally not recommended for patients with severe hepatic impairment (serious liver damage) due to the difficulty of adjusting the dose appropriately with the extended-release capsule form.

Q: What exactly does the label 'Schedule X' mean for Durela?

Durela, containing Tramadol, is classified as a Schedule IV controlled substance in the United States. This legal classification indicates that the drug has an accepted medical use but still has a lower potential for abuse and dependence compared to substances in Schedules I, II, or III.

Q: Are there different brand names for the same medicine as Durela?

Yes, Durela is a brand name for Tramadol Hydrochloride Extended-Release. The active ingredient, Tramadol, is widely available under numerous other brand names and as a generic product in both immediate-release and extended-release forms globally.

Q: Is Durela available in different dosage forms (e.g., tablet, liquid)?

Durela is specifically manufactured and marketed as an Extended-Release Capsule. While the active ingredient, Tramadol, is available in other formulations like immediate-release tablets or oral solutions, these are generally not sold under the Durela brand name.

Q: Is a generic version of Durela available on the market?

Yes. The active ingredient in Durela, Tramadol Hydrochloride Extended-Release, is available in generic versions. These generic formulations are considered therapeutically equivalent to the brand-name product.

Q: Can Durela affect laboratory test results?

Tramadol is generally not included in standard 5 or 10-panel drug tests. However, it can be detected by specialized or advanced screening panels, which may be relevant for specific regulatory or monitoring programs that check for opioids.

Q: Is Durela often prescribed alongside other medicines?

Durela is approved to relieve pain in people who are expected to need consistent opioid treatment. In the management of chronic pain, it is common for this medication to be prescribed as part of a combination therapy that may involve non-opioid medications.

Q: Is Durela known to cause problems with eyesight?

Official adverse reaction lists note that vision abnormalities, including blurred vision, have been reported in patients taking the medication. These effects are generally listed in the Uncommon or Rare frequency categories.

Q: Are there different instructions for taking Durela depending on the time of day?

Official instructions specify taking Durela once daily at approximately the same time every day to maintain consistent blood levels. There is no restriction on taking it specifically in the morning or evening, as long as the timing is consistent.

Q: Is Durela covered by most national drug formularies?

Formulary status for Durela (Tramadol ER) varies widely by insurance plan and national healthcare system. Many formularies include it, but the coverage often involves specific tier placement or local prior authorization requirements that must be met.

Q: What does the term 'contraindication' mean in the context of Durela?

A contraindication is a symptom or medical condition that serves as a reason for a treatment to not be used because it could be harmful. For Durela, absolute contraindications include severe respiratory depression or concurrent use with MAOI medications.

Q: Is the active ingredient in Durela also used in any other products?

Yes. Tramadol Hydrochloride, the active ingredient in Durela, is also used in numerous other medicinal products. These include immediate-release tablets and combination products, such as those that combine tramadol with acetaminophen.

Q: Can people who are allergic to certain inactive ingredients still take Durela?

The official patient information indicates that information regarding all known allergies, including allergies to non-active components, should be shared with a healthcare professional. This is because Durela contains inactive ingredients that could potentially cause allergic reactions or other problems in susceptible individuals.

Q: Are there any specific lifestyle changes recommended while on Durela?

Official warnings strongly advise against the consumption of alcohol while taking Durela due to the significantly increased risk of serious side effects. Due to the risk of somnolence (drowsiness), regulatory documents contain warnings about operating hazardous machinery until the full effect of the medication is known.

Q: What is the maximum duration for which Durela has been studied in clinical trials?

While the FDA states many controlled trials were short-term (12 weeks or less), some controlled studies investigating the long-term use of extended-release tramadol formulations have been conducted for periods up to six months.

Q: Are there specific official guidelines for Durela use in adolescents?

Official guidance strictly contraindicates Durela use in children younger than 12 years of age. Its use is also avoided in adolescents aged 12 to 18 who have specific risk factors for breathing problems, such as obstructive sleep apnea, as documented in official drug safety communications.

Q: Does Durela have different names in other countries?

Yes. Although the brand name Durela may be specific to one market, Tramadol extended-release is sold globally under numerous different brand names, depending on the country and the manufacturer.

Q: Is Durela known to cause changes in mood or behavior?

Official warnings note that Durela may cause some people to become agitated, irritable, or display other abnormal behaviors. It is also mentioned that it may be associated with serious psychological symptoms, including suicidal thoughts or tendencies, in some patients.

Q: What kind of studies have been performed on Durela?

The primary evidence supporting Durela's use is drawn from short-term, randomized, controlled trials (RCTs). These studies compared Durela against placebo for management of conditions like chronic low back pain and osteoarthritis pain.

Q: Is there an official patient information leaflet available for Durela?

Yes. As a prescription opioid, Durela is required to be dispensed with an FDA-mandated Medication Guide, often referred to as a Patient Information Leaflet. This guide provides crucial safety information and warnings to the patient.

Q: What are the official guidelines about drinking alcohol while on Durela?

Official regulatory warnings advise against the use of alcohol while taking Durela. Combining the two significantly increases the risk of profound sedation, severe respiratory depression (breathing problems), coma, and death.

How should Durela be stored and disposed of?

Storage and Disposal Requirements for Durela

Durela (tramadol hydrochloride extended-release) must be handled and stored according to official regulatory mandates for a Schedule IV controlled substance.

Storage Conditions

The medicine should be stored at controlled room temperature, generally between 20 C to 25 C (68 F to 77 F), and must be protected from freezing, excessive heat, moisture, and light. It is mandatory to keep Durela in its closed container and store it securely, completely out of the sight and reach of children and others, due to the high risk of fatal accidental ingestion.

Disposal Instructions

Unused or expired Durela should be disposed of promptly. The preferred method is returning it to an authorized drug take-back program. If a take-back option is unavailable, the medicine should be mixed with an undesirable substance (such as dirt or used coffee grounds), placed in a sealed bag, and discarded in the household trash. Do not crush the capsules, and scratch out all personal information from the prescription label before disposal.

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

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