Dicloreum retard

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Dicloreum retard

Property Description
Active ingredient Diclofenac (as diclofenac sodium)
Form Extended-release tablet (Modified-release)
Pharmacological class Non-Steroidal Anti-Inflammatory Drug (NSAID)
Common purpose Relief from pain, inflammation, and fever
Origin Synthetic, Phenylacetic acid derivative

Dicloreum Retard: Identity and Pharmacological Classification

Dicloreum retard is a synthetic prescription-only medicinal product whose active compound is diclofenac sodium, chemically classified as a phenylacetic acid derivative. It is formally grouped as a Non-Steroidal Anti-Inflammatory Drug (NSAID), placing it among medicines that target the underlying processes causing inflammation and pain. The substance diclofenac is specifically categorized under the ATC Code M01AB05, confirming its identity as an acetic acid derivative. Its action is clinically recognized for selectively influencing inflammatory mediators, supporting its established use in inflammatory management.

Composition and The Significance of the Retard Formulation

The medication is a single-ingredient product presented as an extended-release tablet or modified-release capsule for oral administration. The essential feature, and the key differentiator, is the "retard" designation, which denotes a slow-release preparation. This sustained-action form is engineered to ensure the diclofenac sodium is released gradually, preventing the immediate dispersal of the entire dose. The sustained-release profile is designed to maintain consistent therapeutic concentrations, thereby enabling prolonged symptomatic control. This sustained release mechanism ensures the patient receives effective relief over a longer period with fewer doses.

General Purpose: Relief from Inflammation and Pain

The medication's overall purpose is to provide simultaneous analgesic (pain-relieving), anti-inflammatory (swelling-reducing), and anti-pyretic (fever-reducing) effects. This generalized therapeutic action is achieved by influencing the chemical messengers that drive the inflammatory response. Consequently, Dicloreum retard is generally intended to mitigate the discomfort and functional impairment associated with acute or chronic pain and various inflammatory conditions.

What side effects are possible with Dicloreum retard?

Possible Side Effects and Safety Information

As a non-steroidal anti-inflammatory drug (NSAID), Dicloreum retard (diclofenac) is associated with risks common to this class, particularly concerning the gastrointestinal and cardiovascular systems. The frequency of adverse reactions is typically classified as Very Common, Common, Uncommon, Rare, or Very Rare.


Serious and Clinically Significant Adverse Reactions

  • Gastrointestinal Effects: A risk of serious gastrointestinal bleeding, ulceration, and perforation exists, which can be fatal and may occur without prior warning symptoms. This risk is generally higher with increased dose and duration of use, and notably in the elderly.
  • Cardiovascular Thrombotic Events: Treatment is associated with an increased risk of serious cardiovascular thrombotic events, including myocardial infarction (heart attack) and stroke, which can be fatal. The risk may increase with higher doses and long-term use.
  • Hypersensitivity and Liver: Anaphylactic/anaphylactoid reactions (Rare) may occur. Rare instances of severe hepatotoxicity (liver injury) have also been reported, necessitating monitoring of liver function during prolonged therapy.

Restrictions and Special Considerations

  • Contraindications: Use is strictly contraindicated in patients with established severe heart failure (NYHA II-IV), ischaemic heart disease, peripheral arterial disease, and/or cerebrovascular disease. It is also contraindicated in the presence of active gastric or intestinal ulcer, bleeding, or perforation, and in the last trimester of pregnancy.
  • Dose Minimization: To minimize the potential for adverse effects, the official safety advice requires the use of the lowest effective dose for the shortest duration necessary to manage symptoms.
  • Vulnerable Populations: Elderly patients are at an increased risk of serious adverse reactions, particularly fatal gastrointestinal bleeding and perforation.

Overdose and Emergency Response

Overdose and When to Seek Help

Immediate medical attention must be sought in the event of severe intoxication or suspected overdose.

Regulatory authorities describe that an overdose of the active substance in Dicloreum retard (diclofenac) does not present a single, typical clinical picture. The resulting effects can vary widely, requiring urgent attention to manage complications.

Documented Overdose Presentations

The signs and symptoms of an overdose often focus on the gastrointestinal and central nervous systems. Documented presentations include:

  • Gastrointestinal Disturbances: Vomiting, gastrointestinal bleeding, diarrhea, and abdominal pain.
  • Central Nervous System Effects: Dizziness, headache, and ringing in the ears (tinnitus). Rarely, more severe central nervous system effects such as convulsions may occur.
  • Severe Complications: In cases of severe poisoning, potential outcomes involve acute kidney failure, liver damage, low blood pressure (hypotension), and respiratory depression.

Required Emergency Management

Treatment for acute poisoning is primarily supportive and symptomatic. This involves managing complications like hypotension, kidney failure, convulsions, or respiratory depression. Because the active substance binds tightly to proteins in the blood, methods like forced diuresis, dialysis, or hemoperfusion are generally considered unlikely to be effective in eliminating the drug.

Therapeutic Uses of Dicloreum retard

What Dicloreum retard Treats: Main Uses and Benefits

The purpose of Dicloreum retard is to provide symptomatic relief across domains where symptoms related to physical discomfort and inflammation create noticeable interference with daily stability. It is applicable in clinical settings that involve acute or unstable symptom patterns, offering supportive therapeutic benefit to moderate distressing manifestations. The medication is used for managing the signs and symptoms of osteoarthritis and rheumatoid arthritis, in situations where patients experience these conditions.

It is generally used across conditions characterized by periods of heightened symptoms, including inflammatory joint disorders, musculoskeletal soft tissue conditions like tendonitis and bursitis, and the management of pain and inflammation following trauma or surgery. The medicine helps address symptom clusters that intensify over time, providing support that helps ease the overall symptom burden.

It is also relevant in contexts marked by increased discomfort, such as painful vertebral column syndromes or inflammatory gynecological conditions like primary dysmenorrhoea. This supports general well-being during symptomatic phases where symptoms may interfere with routine activities.


Quick Fact: Relief for Pain, Inflammation, and Stiffness

Dicloreum retard is relevant for easing symptoms related to inflammatory or irritative states, including physical discomfort, swelling, and fever, and supports general well-being when symptoms are more noticeable.

Eligibility and Restrictions for Use

Eligibility Profile: Who Can and Cannot Use Dicloreum retard

Official regulatory documents define strict criteria for using Dicloreum retard (diclofenac extended-release), primarily based on absolute contraindications and patient status. The medicine is primarily approved for use in adults (generally 18 years and older). Safety and efficacy have not been established for children and adolescents, making the formulation unsuitable for the pediatric population.


Contraindicated Populations (Must Not Use)

Contraindication Status
Late Pregnancy (Last Trimester) Contraindicated
Severe Organ Failure (Renal, Hepatic) Contraindicated
Severe Cardiac Conditions (NYHA Class II-IV) Contraindicated
Aspirin/NSAID Hypersensitivity Contraindicated
Active GI Ulceration/Bleeding Contraindicated
Post-CABG Surgery Pain Contraindicated

Restricted and Conditional Use

Patients who are older adults or who have only mild to moderate renal or hepatic impairment are permitted to use the medicine but must do so with caution and close medical monitoring. Use during the first and second trimesters of pregnancy and during lactation is generally not recommended or requires specific limitations based on regulatory guidance.

What should I know about interactions with other medicines?

Dicloreum retard (diclofenac) can interact with a wide range of other medicines, potentially increasing the risk of adverse effects, particularly gastrointestinal bleeding, kidney damage, or altered drug effectiveness. It is essential to inform your doctor or pharmacist about all medications, including over-the-counter drugs and herbal supplements, you are currently taking.

️ Increased Risk of Bleeding and Ulcers

Co-administration with the following medicines significantly raises the risk of gastrointestinal bleeding or ulceration:

  • Other NSAIDs (Non-Steroidal Anti-inflammatory Drugs) and Salicylates (e.g., aspirin).
  • Anticoagulants (blood thinners) such as warfarin, apixaban, and rivaroxaban.
  • Antiplatelet agents (e.g., low-dose aspirin, clopidogrel).
  • Corticosteroids (e.g., prednisolone).
  • Selective Serotonin Reuptake Inhibitors (SSRIs) and Serotonin-Norepinephrine Reuptake Inhibitors (SNRIs), which are used to treat depression.

Reduced Drug Effectiveness and Kidney Risk

Diclofenac can affect kidney function, which in turn influences the effectiveness and safety of other drugs:

  • Diuretics (water pills) and certain Blood Pressure Medications (ACE inhibitors and Angiotensin II Receptor Blockers) may have their effect reduced, and the risk of acute kidney problems is increased.
  • Methotrexate levels in the blood may rise, increasing the risk of its toxicity. Close monitoring is necessary.
  • Lithium levels may also increase, potentially leading to toxicity.

Other Noteworthy Interactions

  • Digoxin (for heart problems): Diclofenac may raise digoxin levels.
  • Cyclosporine and Tacrolimus (immunosuppressants): Increased risk of kidney toxicity.

If you are taking any of these medications, your doctor may need to adjust the dose or monitor you more closely.

Mechanism of Action

The action of Dicloreum retard relies on its active ingredient, diclofenac, to interact with the Arachidonic Acid cascade, a biochemical pathway that generates prostanoid mediators.

Key Mechanism: Inhibition of Prostaglandin Synthesis

The drug's primary function is to act as a competitive inhibitor of the Cyclooxygenase-2 ( COX-2) enzyme. This molecular interaction blocks the COX-2 enzyme from converting arachidonic acid into pro-inflammatory prostaglandins ( PGE2), thereby interrupting a key step in the humoral cascade that drives inflammation. This mechanism reduces PGE2-mediated vasodilation and subsequent fluid accumulation (edema) at the tissue level. Simultaneously, the suppression of PGE2 formation in the hypothalamus reduces the PGE2-induced elevation of the body’s temperature set-point.

Mechanistic Consequence: Desensitization of Nociceptors

By reducing the availability of PGE2, the drug prevents the chemical sensitization of peripheral nociceptors (pain receptors), a process where these receptors normally become hyper-responsive to chemical stimuli like bradykinin. This action diminishes the peripheral sensitization of nociceptors. The mechanism is specifically engaged where physiological responses are amplified by the prostaglandin signaling cascade, modulating the physiological consequences driven by these chemical mediators without influencing the underlying tissue damage or disease progression.

Dosage and Administration Information

How to Use Dicloreum retard

The administration of Dicloreum retard, an oral extended-release (retard) tablet containing 100 mg of diclofenac sodium, is governed by specific procedural steps to ensure the intended slow release of the active compound.

Administration Instructions

The guidelines for this prolonged-release formulation center on a once-daily (q.d.) dosing schedule. The standard dose is 100 mg daily, which represents the recommended maximum dose for the extended-release tablet alone.

Procedural Requirement Instruction
Route of Administration Oral
Dosage & Frequency 100 mg, taken once daily.
Tablet Integrity Must be swallowed whole with a glass of liquid.
Manipulation Restriction Do not crush, divide, or chew the tablet to avoid compromising the slow-release properties.
Timing May be taken with or after food; it may be preferred in the evening.

Principles of Use and Adjustments

Use of the medication must adhere to the principle of employing the lowest effective dose for the shortest duration necessary to achieve symptomatic control. This duration should be re-evaluated periodically.

Age-Group Instructions:

  • Older Adults: Treatment should begin at the lowest effective dose.
  • Pediatric Use: The 100 mg prolonged-release tablet is not suitable or not recommended for use in children and adolescents.

If a dose is missed, guidance advises the patient to skip the missed dose and resume the regular schedule, without taking a double dose to compensate.

Recent Clinical Evidence

Recent Clinical Evidence Summary

Clinical research on diclofenac sodium extended-release (the active substance in Dicloreum retard) focuses primarily on its use for managing chronic pain and inflammation associated with conditions such as osteoarthritis (OA) and rheumatoid arthritis (RA).

Studies are designed to compare the effects of the extended-release formulation against placebo, lower doses, or other non-steroidal anti-inflammatory drugs (NSAIDs).


Efficacy and Functional Outcomes

  • Osteoarthritis: Several randomized, controlled trials (RCTs) have explored the use of the extended-release formulation in patients with knee OA. Meta-analyses of placebo-controlled studies have reported that participants receiving diclofenac experienced statistically significant changes in pain, physical function, and stiffness scores compared to control groups.
  • Duration of Effect: The extended-release design is studied for its capacity to provide sustained levels of the active substance over time, potentially allowing for a reduced dosing frequency compared to immediate-release formulations.

Long-Term Safety and Comparative Data

Research has provided information on adverse events observed in different patient populations. Since diclofenac is a non-selective NSAID, long-term observational and epidemiological studies often examine its systemic risks.

Research Focus Key Findings Reported in Studies
Cardiovascular Risk Available evidence points toward a higher potential for arterial thrombotic events (such as heart attack or stroke) compared to some other NSAIDs, particularly with high-dose, long-term use. This risk is considered similar to that of COX-2 selective inhibitors.
Gastrointestinal (GI) Safety Studies comparing diclofenac to placebo consistently report a higher occurrence of gastrointestinal adverse events (AEs) in the diclofenac group, which may include ulcers or bleeding.

These findings on potential risks are considered by regulatory agencies when defining the appropriate indications and warnings for diclofenac products.

Key Studies & References

  1. 2019 American College of Rheumatology/Arthritis Foundation Guideline for the Management of Osteoarthritis of the Hand, Hip, and Knee

Frequently Asked Questions (FAQ)

Common questions about Dicloreum retard (FAQ)

Q: How quickly does Dicloreum retard start to relieve pain?

As Dicloreum retard is an extended-release formulation, its absorption into the body is slowed down to prolong the effect. Official product information indicates that the concentration of the active substance in the blood typically peaks approximately 2.5 hours after taking the tablet. This time point represents when the highest concentration of the drug is typically available in the bloodstream to begin providing relief.

Q: How long does the pain relief from Dicloreum retard typically last?

The 'retard' designation means the drug is designed for sustained action. Official regulatory information confirms that the extended-release design helps maintain consistent therapeutic concentrations over a longer period. The sustained-action design supports its use for prolonged symptomatic control.

Q: What are the most common stomach issues people experience with Dicloreum retard?

Regulatory documents list several gastrointestinal issues as common adverse reactions. These often include symptoms like nausea, diarrhea, dyspepsia (indigestion), abdominal pain, and flatulence (gas).

Q: What happens if you take Dicloreum retard on an empty stomach?

Official information regarding the drug's absorption states that taking the extended-release tablet with food does not significantly change how much of the medicine is absorbed. However, regulatory data suggests that taking the medication without food may slightly delay the time required to achieve maximum concentration in the blood.

Q: Why is taking Dicloreum retard with food recommended?

Dicloreum retard belongs to a class of drugs called NSAIDs, which have the potential to cause stomach irritation. Some official warnings note that taking the medication with food or milk may help reduce the chance of stomach upset or irritation.

Q: What research supports the use of diclofenac (the active ingredient) for pain relief?

The active ingredient in Dicloreum retard, diclofenac, is officially indicated for the relief of the signs and symptoms of inflammatory conditions such as osteoarthritis and rheumatoid arthritis. It is also indicated for the management of mild to moderate acute pain.

Q: Is it common to feel tired or dizzy after taking Dicloreum retard?

Central Nervous System ( CNS) disturbances, which can include dizziness, are listed among the known adverse reactions in official product literature. Official warnings note that if these effects occur, activities requiring high alertness may be affected.

Q: Can Dicloreum retard affect your mood or cause anxiety?

Regulatory documents mention that adverse effects related to the central nervous system include psychiatric disorders. These have been reported to include changes in mood, anxiety, or depression.

Q: Can older people generally take Dicloreum retard safely?

Official warnings state that older adults are at a greater risk of serious side effects, such as gastrointestinal bleeding. Official guidance indicates that treatment for older adults must begin at the lowest effective dose due to the increased risk, and use requires careful monitoring.

Q: Is Dicloreum retard safe for people who have kidney problems?

Regulatory documents state that the medication is strictly contraindicated (must not be used) in cases of severe kidney failure. For people with existing mild to moderate kidney impairment, caution is required, and official guidance recommends medical monitoring of kidney function during treatment.

Q: Can Dicloreum retard help with menstrual cramps?

While the extended-release formulation may not have a specific indication for menstrual pain, official indications for other diclofenac formulations cover the management of painful menstrual periods (dysmenorrhea).

Q: Is Dicloreum retard used for chronic pain or only for short-term issues?

Regulatory indications cover both acute and chronic conditions. It is indicated for short-term acute pain as well as for the management of the signs and symptoms of long-term conditions like rheumatoid arthritis and osteoarthritis.

Q: How long can a person safely take Dicloreum retard continuously?

Official safety advice requires the medication be used at the lowest effective dose for the shortest duration necessary to control symptoms. Any decision regarding long-term use requires periodic re-evaluation by a prescribing healthcare professional, as advised in official safety warnings.

Q: Can Dicloreum retard cause skin rashes or allergic reactions?

Yes, allergic reactions, including serious anaphylactic reactions, have been reported in official warnings. Official warnings require immediate discontinuation of the medication at the first sign of a skin rash or other hypersensitivity reactions.

Q: Is it normal to have mild heartburn after taking Dicloreum retard?

Mild symptoms like dyspepsia and abdominal discomfort are commonly reported as general gastrointestinal side effects. These reactions are associated with the class of drugs to which Dicloreum retard belongs.

Q: Can Dicloreum retard cause water retention or swelling?

Official warnings note that fluid retention and edema (swelling) have been observed in some patients taking the medication. Caution is necessary for patients with existing conditions that might make them susceptible to fluid retention.

Q: Is it true that Dicloreum retard is in the same drug class as aspirin?

Yes, Dicloreum retard (diclofenac) is officially classified as a Non-Steroidal Anti-inflammatory Drug ( NSAID). For this reason, it is contraindicated in patients who have a history of allergic reactions after taking aspirin or other NSAIDs.

Q: Is Dicloreum retard used to reduce fever as well as pain?

Pharmacological information confirms that diclofenac possesses analgesic (pain-relieving), anti-inflammatory, and antipyretic (fever-reducing) activities. While it possesses antipyretic activity, its official use is primarily indicated for inflammatory and painful conditions.

Q: Can people with a history of heart issues take Dicloreum retard?

The medication is generally not recommended for people with established cardiovascular disease or uncontrolled high blood pressure. It is strictly contraindicated in cases of severe heart failure (NYHA Class II-IV) and for pain immediately following coronary artery bypass graft ( CABG) surgery.

Q: Why do some people experience ringing in the ears (tinnitus) with anti-inflammatories like Dicloreum retard?

Tinnitus (ringing in the ears) is a reported adverse effect of diclofenac listed in official regulatory documents. It is categorized as a central nervous system-related disturbance.

Q: Is Dicloreum retard used for post-operative pain management?

Other formulations of diclofenac are indicated for the short-term treatment of post-operative pain, inflammation, and swelling. This is typically applicable following procedures such as dental or orthopedic surgery.

Q: Are there generic equivalents for Dicloreum retard?

Yes, the active ingredient in Dicloreum retard, diclofenac sodium, is widely available in various generic formulations and is sold under many different brand names globally.

Q: Can Dicloreum retard be used for tendonitis or bursitis?

Official indications for diclofenac generally include the treatment of painful and inflammatory conditions known as non-articular rheumatism. This class of conditions often includes soft tissue issues like tendonitis and bursitis.

Q: Is Dicloreum retard used as a muscle relaxant?

No, Dicloreum retard is an NSAID. Its primary functions, as defined by regulatory documents, are to reduce inflammation, relieve pain, and reduce fever; it is not classified as a muscle relaxant.

How should Dicloreum retard be stored and disposed of?

How to Store and Dispose of Dicloreum retard

Official storage conditions for Dicloreum retard (diclofenac sodium extended-release capsules) are defined by the specific packaging.


Storage Requirements

For PVC/PE/PVDC and PVC blister packs, the medicine must be stored between 10°C and 25°C and protected from moisture; these packs must not be refrigerated. Formulations in Polyamide/Al/PVC-Al blister packs do not require special storage conditions. All medicine must be kept out of the sight and reach of children.

Disposal

The official labeling indicates no special instructions are needed for discarding unused product. However, disposal must be managed in accordance with applicable local regulations for pharmaceutical waste, ensuring it does not enter household waste or water systems.

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

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