Ацеклофенак

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Ацеклофенак

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Overview of Ацеклофенак

Quick Facts

Property Description
Active ingredient Aceclofenac
Form Tablet, capsule, cream
Pharmacological class Non-Steroidal Anti-Inflammatory Drug (NSAID)
Common use Pain and inflammation management
Origin Synthetic (Carboxylic acid derivative)

Ацеклофенак: Definition and Pharmacological Class

Ацеклофенак is a synthetic medicinal entity containing the active ingredient Aceclofenac, which is classified as a Non-Steroidal Anti-Inflammatory Drug (NSAID). This classification identifies it as an agent used to address symptomatic responses to inflammation, pain, and fever.

The drug's single active substance is a carboxylic acid derivative, meaning it is chemically related to other established pain-relieving compounds. Aceclofenac achieves clinically recognized pain relief and functional improvement due to its potent anti-inflammatory effects. The drug’s primary role is to alleviate discomfort and support mobility hindered by inflammatory processes.


What is the Composition and Form of Ацеклофенак?

The pharmaceutical composition of Ацеклофенак is typically a single-ingredient product, utilizing only Aceclofenac as the therapeutic component. This compound is delivered via several dosage forms, primarily for oral administration as tablets or modified-release capsules, but is also available for topical administration as a cream.

In its oral forms, the active substance is combined with necessary solid pharmaceutical excipients, while topical preparations are formulated in an emulsifying base. The availability in oral and topical forms allows for targeted treatment, offering versatility in managing localized discomfort or systemic inflammatory conditions.


General Purpose of Ацеклофенак

The general purpose of Ацеклофенак is to provide symptomatic relief by mitigating inflammation, reducing pain, and lowering fever associated with various inflammatory processes, such as those that restrict joint movement. These benefits are rooted in its mechanism of inhibiting the cyclooxygenase (COX) enzyme.

By restricting the COX enzyme, the medicine limits the synthesis of prostaglandins, which are the biological messengers that sustain the inflammatory cascade that causes swelling, tenderness, and pain. Aceclofenac is utilized specifically for its anti-inflammatory and analgesic properties. This targeted interference at the chemical level is the definitive function of Aceclofenac.

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What side effects are possible with Ацеклофенак?

Possible Side Effects and Safety Information

Ацеклофенак (Aceclofenac) is a non-steroidal anti-inflammatory drug (NSAID) whose safety profile requires particular attention to gastrointestinal and cardiovascular risks, which are common to this drug class.

Adverse Reactions Summary

Adverse reactions are classified by frequency based on regulatory standards (Very Common, Common, Uncommon, Rare, Very Rare):

Frequency Common Examples (≥1/100 to <1/10) Serious/Rare Examples (Very Rare <1/10,000)
System-Organ Class Gastrointestinal, Nervous System Cardiovascular, Hematological, Dermatological
Reported Effects Dizziness, dyspepsia, abdominal pain, nausea, diarrhea, and increased liver enzymes. Gastrointestinal bleeding/perforation, severe skin reactions (Stevens-Johnson syndrome, toxic epidermal necrolysis), anaphylactic shock, acute renal or hepatic failure.

Clinically Significant Safety Information

Serious Risks: The use of Aceclofenac is associated with an increased risk of serious cardiovascular thrombotic events (including myocardial infarction and stroke) and severe gastrointestinal adverse events (ulceration, bleeding, or perforation), which can be fatal. This risk may increase with higher doses and prolonged use.

Contraindications: Aceclofenac is strictly contraindicated in patients with active or recurrent peptic ulcers or hemorrhage, severe heart failure (NYHA II-IV), severe hepatic or renal failure, or a history of hypersensitivity reactions (asthma, urticaria, acute rhinitis) to aspirin or other NSAIDs. Use is also contraindicated during the third trimester of pregnancy.

Cautions: Close monitoring is mandatory for the elderly due to an increased risk of severe GI events. Caution is also required in patients with a history of hypertension, mild to moderate heart failure, or pre-existing gastrointestinal disorders (e.g., Crohn's disease, ulcerative colitis). The lowest effective dose should be used for the shortest possible duration to mitigate risks.

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Overdose and Emergency Response

Overdose of Aceclofenac may present with documented clinical manifestations that primarily affect the gastrointestinal and central nervous systems. Symptoms often include nausea, vomiting, epigastric pain, and general gastrointestinal irritation. CNS effects can range from headache, dizziness, and disorientation to more severe occurrences like convulsions and coma in cases of significant poisoning. Severe outcomes documented in regulatory labeling include the risk of acute renal failure, liver damage, and serious gastrointestinal bleeding. Hypotension and respiratory depression have also been noted.

Immediate medical attention is necessary upon suspicion of overdose, particularly if severe symptoms such as respiratory depression, loss of consciousness, or signs of organ distress are present. The official regulatory guidance states that management is primarily supportive and symptomatic, as no specific antidote is known. Procedures considered following ingestion of a potentially toxic amount include the administration of activated charcoal within one hour and, potentially, gastric lavage.

The official overdose protocol requires close monitoring of vital organ function. Specifically, renal function and liver function must be closely observed. Patients are mandated to be observed for a minimum period of four hours following the ingestion of a dose considered potentially toxic, ensuring any developing complications are addressed with symptomatic treatment, such as intravenous diazepam for prolonged convulsions.

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Therapeutic Uses of Ацеклофенак

Aceclofenac is commonly used to help ease symptoms related to physical discomfort that interfere with daily functioning. As relevant within the therapeutic area of chronic conditions such as osteoarthritis, rheumatoid arthritis, and ankylosing spondylitis, it is used to address pain and discomfort. This medication is applied across domains where additional symptomatic support is needed for these conditions.


Managing Chronic Pain and Stiffness in Arthritis

This medication is commonly used across conditions characterized by periods of heightened symptoms, specifically those involving recurrent or episodic manifestations in the joints and spine. It is applied in addressing symptom clusters of joint pain, stiffness, and swelling, which contributes to easing the overall symptom load and supports general well-being during symptomatic phases.

Relief for Acute Musculoskeletal and Episodic Discomfort

This medication is relevant for managing acute symptomatic episodes where discomfort is present due to musculoskeletal issues, including conditions like low back pain and traumatic soft tissue injuries (e.g., sprains). It also offers symptomatic support for the episodic discomfort associated with primary dysmenorrhea (menstrual pain).

“Aceclofenac is considered relevant for easing symptoms that interfere with routine activities, supports patients during episodes of heightened discomfort.”


Quick Fact Block

Quick Fact: Support for Discomfort Description
Symptom Domain Symptoms related to physical discomfort, joint stiffness, and swelling
Primary Conditions Chronic inflammatory joint diseases, acute soft tissue injury, and primary dysmenorrhea
Patient Benefit Supports general well-being by easing the overall symptom load
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Eligibility and Restrictions for Use

Official Eligibility Profile

Ацеклофенак is generally intended for adults 18 years and older who do not have specific pre-existing health issues listed as contraindications. Use in children and adolescents under 18 years is not recommended as safety and efficacy are not established in this population.

Contraindicated (Must Not Use):

  • Patients with documented hypersensitivity to Aceclofenac, aspirin, or any other NSAID.
  • Individuals with active or recurrent peptic ulceration or a history of GI bleeding related to prior NSAID therapy.
  • Those with severe hepatic failure, severe renal failure, or established severe heart failure (NYHA Class II-IV).
  • Patients with established ischemic heart disease, peripheral arterial disease, and/or cerebrovascular disease.
  • Women during the third trimester of pregnancy.

Restricted or Conditional Use:

  • Elderly patients require caution and the lowest effective dose due to an increased risk of serious adverse reactions.
  • Patients with mild to moderate hepatic or renal impairment may use the medicine but require close medical surveillance.
  • Use during the first and second trimesters of pregnancy and while breastfeeding is not recommended due to lack of adequate data.
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What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information for Aceclofenac documents specific interaction patterns concerning pharmacodynamic and pharmacokinetic outcomes. Co-administration with other NSAIDs, including aspirin used for pain relief and COX-2 inhibitors, is contraindicated due to an additive risk of adverse effects.

Pharmacokinetic Outcomes (Altered Levels)

Aceclofenac may inhibit the renal clearance of substances like Lithium and Digoxin, leading to increased plasma concentrations of the co-administered drug. The elimination of Methotrexate is also decreased, necessitating caution if administered within 24 hours. Dosage adjustment for co-administered Oral Antidiabetics may be required.

Pharmacodynamic Outcomes (Augmented Risk)

Interactions that increase the risk of gastrointestinal bleeding occur with Anticoagulants (e.g., Warfarin), Systemic Corticosteroids, Antiplatelet Agents, and SSRIs. This risk is heightened in elderly patients. Concomitant use with Diuretics or Ciclosporin increases the documented risk of nephrotoxicity.

Administration Constraints

Aceclofenac must not be used for 8 to 12 days following the administration of Mifepristone due to the potential for reduced efficacy of Mifepristone. The presence of food reduces the rate of Aceclofenac absorption, but the overall extent of absorption (bioavailability) remains unaffected.

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Mechanism of Action

How Aceclofenac Works

Aceclofenac exerts its primary mechanism of action through the inhibition of the Cyclooxygenase (COX) enzymes. By acting on this core enzymatic pathway, the drug successfully limits the conversion of arachidonic acid into prostaglandins, which are key lipid mediators essential for signaling pain and initiating the inflammatory cascade. This mechanism results in the reduction of signaling within the body's inflammatory systems. This pathway modulation contributes to the physiological consequences associated with reduced eicosanoid levels.

The drug is considered a preferential COX-2 inhibitor, exhibiting a greater affinity for blocking the activity of the inducible COX-2 isoform over the constitutive COX-1 isoform. Since COX-2 activity is significantly upregulated at sites of inflammation, this action targets signaling patterns characteristic of the inducible COX-2 pathway. This mechanism is applied to adjust activity within peripheral inflammatory pathways, contributing to changes in the signaling dynamics of these pathways.

Beyond direct enzyme inhibition, the drug engages secondary mechanisms by modulating the levels of other inflammatory signaling molecules, such as certain cytokines (e.g., IL-1beta and TNF-alpha). It is also associated with influencing mechanisms associated with chondrocyte-mediated synthesis of matrix components. This effect modifies early molecular steps that shape systemic physiological outcomes, contributing to a broader modulation of the signaling profile and influencing downstream effects associated with chronic dysregulated processes.

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Dosage and Administration Information

How Ацеклофенак is Used: Official Administration Guidelines

This section describes the established use and administration procedures for Aceclofenac.


Route and Dosage

Aceclofenac is approved for oral administration as 100 mg film-coated tablets.

The maximum recommended daily dose for adults is 200 mg. This is typically divided into two separate 100 mg doses per day.


Dosing Schedule and Administration Context

The standard schedule involves taking one 100 mg tablet in the morning and one 100 mg tablet in the evening.

Administration Instruction Guideline
Ingestion Method Tablets must be swallowed whole with liquid.
Relation to Food May be taken preferably with or after food.
Duration of Use Must be used at the lowest effective dose for the shortest duration necessary.

Population-Specific Dosing Rules

Standard protocols provide specific adjustments for certain populations:

  • Hepatic Impairment: Patients with mild hepatic impairment are recommended to begin treatment with a reduced initial daily dose of 100 mg.
  • Older Adults: While no general modification is required, the principle of using the lowest effective dose for the shortest duration applies.
  • Children (Under 18): Use in this population is not recommended due to a lack of sufficient clinical data.
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Recent Clinical Evidence

Research evidence / Overview of studies for Ацеклофенак

Evidence for use in Chronic Inflammatory Joint Diseases

This section will summarize the evidence base for conditions such as osteoarthritis, rheumatoid arthritis, and ankylosing spondylitis. The summary will focus on how randomized controlled trials (RCTs) and systematic reviews evaluated changes in patient-reported outcomes related to physical discomfort and functional imbalance.

Studies explored how outcomes related to physical discomfort change over time in conditions characterized by fluctuating or episodic manifestations in numerous short-term to intermediate-term clinical trials. These studies, which was observed in adult populations, including older individuals, primarily monitored outcomes related to physical discomfort, focusing on patient-reported outcomes describing perceived discomfort and functional imbalance. Studies focusing on conditions involving periods of heightened symptoms reported how symptoms evolved in the observed populations over periods typically ranging from 4 to 12 weeks. Findings describe patterns observed in the studies related to monitored symptom intensity and outcomes reflecting daily functioning or activity level, such as ability to move. In some scientific reviews of this evidence, the certainty remains low when attempting to quantify the precise comparative effect against certain other non-steroidal anti-inflammatory drugs.

Long-term outcomes are not fully established by controlled studies beyond the intermediate trial periods. Furthermore, regulatory documentation highlights that evidence quality varies across studies, with some older trials having been noted for methodological issues, such as small sample sizes; results apply only to the populations studied.

Evidence for use in Acute and Episodic Pain

This part will detail the available research on the use of Aceclofenac for use in research scenarios exploring short-term symptom changes, such as in low back pain or acute musculoskeletal discomforts. The text will describe the types of outcomes describing episodic or acute changes measured and the typical follow-up durations for these acute, episodic conditions.

Research examining temporary physiological imbalance was explored in randomized trials for conditions associated with acute or disruptive episodes, such as low back pain. These studies primarily focused on outcomes describing episodic or acute changes and were conducted during periods of increased symptom activity. The study populations were comprised of adults, including those with chronic low back pain. The studies monitored outcomes related to physical discomfort and studies report how symptoms evolved in the observed populations over defined time intervals, typically lasting only 2 to 4 weeks. Research describes studies that explored different pharmaceutical forms of Aceclofenac against each other.

Few data are available for long-term outcomes regarding subsequent acute episodes. Comparative evidence is lacking for a direct comparison against the full range of pain treatments used for acute musculoskeletal injuries. The research also tends to focus on short-term changes, which means data show patterns related to temporary physiological imbalance rather than sustained condition management.

Study Duration and Long-Term Data

This section will summarize the extent of long-term data available, outlining the maximum follow-up periods observed in controlled and observational studies. It will also describe the scope of research that has documented the continued use of the substance in managing chronic conditions over extended periods.

Follow-up durations were limited in the majority of controlled clinical trials, with most studies monitoring outcomes for 12 weeks or less. Research exploring how symptoms change over time in chronic joint conditions does not offer extensive controlled data beyond this intermediate-term timeframe. However, observational settings evaluating daily-life functioning have been applied over extended periods. These findings describe group patterns over a longer duration, with some research documenting the use and monitoring of patients for up to 12 months. This evidence contributes to understanding symptom patterns over time, but the evidence quality varies across studies compared to the short-term RCTs.

Evidence in Special Populations

This section will outline the specific clinical research that has evaluated the use of Aceclofenac in distinct patient groups, such as the older adult population and those with specific comorbidities. It will also address the documented lack of research data available for the use of this substance in the pediatric population.

Studies was observed in populations of older adults during the main clinical trials for chronic conditions. These studies contribute to the broader evidence landscape by examining how the substance was used in an older group, though subgroup findings are uncertain. For the pediatric population (children and adolescents under 18 years), data for certain groups remain insufficient. Clinical trials have not typically included this group, meaning there is limited information for this age group.

Unanswered Questions and Research Gaps

This final summary will synthesize the main limitations identified in the body of evidence, including instances where comparative evidence has been classified as low certainty, and will address documented gaps in the data for specific research areas, such as its performance in certain models of acute pain.

Across the evidence base, certain aspects of the research remain uncertain. Findings were mixed when systematically comparing the magnitude of outcomes related to physical discomfort against some other established non-steroidal anti-inflammatory drugs. This leads scientific reviews to sometimes conclude that the certainty remains low for this specific comparison. Furthermore, there is limited information for long-term outcomes, as follow-up durations were limited in many initial controlled trials. Research also describes that the data for certain patient groups, such as the pediatric population, remain insufficient. Evidence highlights what is known—and what is still uncertain—about the substance’s use. Research does not determine whether an individual will respond similarly to the group patterns observed.

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Frequently Asked Questions (FAQ)

Common questions about Ацеклофенак (FAQ)


Q: How quickly does Ацеклофенак start to work after taking it?

Regulatory documents state that maximum levels in the blood are generally measured within 1 to 3 hours after taking the tablet. This timeframe relates to the medicine's overall systemic absorption. The speed of absorption can be influenced by taking the medicine with or after food, which affects how quickly the maximum concentration is reached.


Q: How long does the effect of Ацеклофенак typically last?

Official pharmacokinetic data report that the mean plasma elimination half-life of Aceclofenac is around 4 to 5 hours. This refers to the time it takes for half of the substance to be removed from the bloodstream. The reported half-life is consistent with the drug’s intended use in a typically prescribed twice-daily regimen.


Q: Can older adults generally use Ацеклофенак?

Official guidance states that caution should be exercised when treating older adults. Regulatory documents describe the principle of using the lowest effective dose for the shortest duration possible. Close monitoring is recommended for this population due to a potential increase in the risk of adverse reactions, particularly gastrointestinal or kidney issues.


Q: What is the difference between Ацеклофенак and Diclofenac?

Aceclofenac is chemically related to Diclofenac. Official pharmacokinetic information indicates that after Aceclofenac is absorbed, it is converted in the body into an active substance that is Diclofenac. This means Diclofenac is a major active compound that contributes to Aceclofenac's anti-inflammatory and pain-relieving effects.


Q: What are the main findings of clinical trials for Ацеклофенак?

Official therapeutic indications state that clinical trials support the use of Aceclofenac for the relief of pain and inflammation in chronic joint diseases like osteoarthritis and rheumatoid arthritis. These studies examined the drug's anti-inflammatory action by blocking key signaling pathways, and the results describe effects on symptoms such as pain, swelling, and stiffness.


Q: What happens if a dose of Ацеклофенак is missed?

Patient information from regulatory sources describes the common approach if a dose is missed: taking it as soon as it is remembered. However, if it is almost time for the next scheduled dose, the missed dose should be skipped, and the regular dosing schedule should be resumed. It is explicitly stated that two doses should not be taken at the same time.


Q: Does the official guidance mention using Ацеклофенак for acute pain?

Official regulatory labels for certain formulations include its indication for the short-term treatment of pain related to post-operative and post-traumatic cases. It is also indicated for pain and inflammation associated with acute musculoskeletal disorders and soft tissue inflammation.


Q: How is Ацеклофенак different from a steroid medicine?

Aceclofenac is categorized as a Non-Steroidal Anti-Inflammatory Drug (NSAID). The term 'non-steroidal' clarifies that the medicine achieves its anti-inflammatory effects without containing corticosteroids, which are a different class of medicine used to treat inflammation.


Q: Is Ацеклофенак the same type of medicine as Ibuprofen?

Yes, both Aceclofenac and Ibuprofen belong to the same pharmacological class: Non-Steroidal Anti-Inflammatory Drugs (NSAIDs). This classification means they share the same general mechanism of action, which is blocking the cyclooxygenase (COX) enzyme to reduce inflammation and pain signals.


Q: Is it normal to feel drowsy after taking Ацеклофенак?

Official safety documents list dizziness as a common side effect of Aceclofenac. Somnolence, which means drowsiness or feeling sleepy, has also been reported. Regulatory documents mention that due to the potential for dizziness or changes in alertness, caution should be used when engaging in activities that require focused attention, such as driving.


Q: Are there different strengths or forms of Ацеклофенак available?

Yes, Aceclofenac is officially available in multiple pharmaceutical forms. The most common form is the oral tablet (typically 100, mg), but regulatory documents also note the existence of modified-release capsules and a topical cream form in certain regions.


Q: Can you break or crush the Ацеклофенак tablets?

The official administration instructions for film-coated tablets specify that they must be swallowed whole with liquid. Patient information states that the tablets should not be chewed or crushed. Altering the tablet can affect how the medicine is absorbed by the body.


Q: Does taking Ацеклофенак with food change how it works?

Official documents state that the tablet may be taken preferably with or after food. Taking the medicine with food slows down the rate at which it is absorbed into the body. However, the overall extent of absorption (bioavailability) remains consistent whether the drug is taken with or without food.


Q: Can Ацеклофенак be used for dental pain or after surgery?

Yes, official therapeutic indications in some regulatory labels include the use of Aceclofenac for the relief of pain and inflammation associated with procedures like dental surgery or minor gynecological surgery. It is used for short-term pain relief in these contexts.


Q: Is Ацеклофенак a generic or a brand name?

Aceclofenac is the internationally recognized name for the active ingredient and is often used as the common generic name for the medicine. Depending on the region and the manufacturer, it is also sold under various specific brand names.


Q: Does Ацеклофенак cause increased sensitivity to sunlight?

Safety summaries sometimes list photosensitivity as a potential skin-related side effect. Photosensitivity means an increased or unusual sensitivity of the skin to sunlight. This effect is documented in certain official resources as a reported skin-related adverse reaction.


Q: Can the skin be affected by Ацеклофенак?

Yes, various skin-related effects are documented in regulatory safety summaries. Uncommon effects include rash, itching, and hives. More seriously, very rare but severe skin reactions, such as Stevens-Johnson syndrome, have also been reported with the use of the drug.


Q: Can Ацеклофенак affect the results of any medical tests?

Official safety information notes that Aceclofenac can cause changes in certain laboratory values. Specifically, it can lead to elevated liver enzymes and increases in blood urea and serum creatinine levels, which are measures of kidney function. Regular monitoring of renal and hepatic function is often part of the management plan during long-term treatment.


Q: What if I take Ацеклофенак at a different time than usual?

The medicine is prescribed on a twice-daily schedule (morning and evening). The guidance on a missed dose suggests that taking the dose slightly off-schedule is often considered acceptable. However, the patient information emphasizes the need to maintain the twice-daily rhythm and avoid taking two doses at once.


Q: Is Ацеклофенак used for conditions other than joint pain?

Yes, in addition to treating chronic joint conditions like osteoarthritis, official guidance indicates uses for other painful and inflammatory states. These include acute musculoskeletal disorders, inflammation of the soft tissues (like bursitis), and pain relief after minor surgical procedures.

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How should Ацеклофенак be stored and disposed of?

How to Store and Dispose of Aceclofenac

Aceclofenac must be stored according to official regulatory labeling to ensure its stability and effectiveness. The product should be kept at a controlled temperature below 30 C, and it must not be frozen. Storage is required in the original container, which should be kept tightly closed to protect from moisture.

Required Storage and Disposal Summary

Storage Requirement Official Condition
Temperature Control Store below 30 C; Do not freeze.
Container & Protection Keep in original container; Protect from moisture.
Child Safety Keep out of the sight and reach of children.
Disposal Rule Dispose of according to local pharmaceutical waste regulations.

Disposal instructions explicitly state that unused or expired Aceclofenac must not be thrown away via household waste or wastewater. You must follow the instructions provided by a pharmacist or local authority for proper disposal.

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

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