Clonac - Plus

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Clonac - Plus

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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 Clonac - Plus

Quick Facts

Property Description
Active Ingredients Diclofenac and Acetaminophen (Paracetamol)
Form Tablet or Oral Suspension
Pharmacological Class Nonsteroidal Anti-inflammatory Drug (NSAID) and Analgesic/Antipyretic Combination
Common Use Relief of Pain, Inflammation, and Fever
Origin Synthetic

What is Clonac - Plus and Its Pharmaceutical Class?

Clonac - Plus is a fixed-dose combination medicine utilized for combined analgesic and anti-inflammatory effects, providing relief from pain and fever. This preparation is classified as an Analgesic/Antipyretic Combination containing a core Nonsteroidal Anti-inflammatory Drug (NSAID) component. Diclofenac, a key ingredient, is highly effective in managing inflammatory pain conditions. The combination is clinically recognized for its synergistic effect in providing broad-spectrum relief, a feature distinguishing it from single-agent NSAIDs.

The Active Ingredients and Available Forms

The composition of this preparation includes two principal active ingredients: Diclofenac and Acetaminophen, which is the same substance known internationally as Paracetamol. The Diclofenac component acts peripherally as a non-selective inhibitor of cyclooxygenase enzymes, while Acetaminophen acts primarily in the central nervous system. Fixed-dose combinations of NSAIDs and Acetaminophen are often employed to increase analgesic efficacy. This suggests that combining the two substances offers more powerful pain relief than using either drug alone. Clonac - Plus is typically provided as an oral formulation, available in high-level dosage form(s) such as a tablet or oral suspension, intended for the oral route of administration.

General Purpose: Comprehensive Pain, Inflammation, and Fever Relief

The overarching general therapeutic purpose of Clonac - Plus is to address conditions where pain, inflammation, and fever are present together, such as general musculoskeletal discomfort. The combination achieves its benefit by using Diclofenac to inhibit the production of prostaglandins—key mediators of inflammation—and relying on Acetaminophen to contribute robust fever reduction and a complementary central analgesic effect. This mechanism allows the preparation to offer more complete management of bodily distress than would typically be provided by a single class of medication, making it a well-supported option.

Regulatory References

  1. WHO Drug Information

What side effects are possible with Clonac - Plus?

Possible Side Effects and Safety Information

This section outlines the adverse reactions and formal safety restrictions documented for Clonac-Plus, strictly based on authoritative government regulatory documents.


Adverse Reactions and Frequencies

Adverse reactions are formally classified by frequency and the body system affected. Common side effects typically involve the gastrointestinal system and may include nausea, vomiting, diarrhea, stomach pain, and heartburn. Adverse effects related to the nervous system, such as dizziness or drowsiness, may also occur.

Serious Safety Risks

The official safety profile includes warnings about serious adverse reactions, which are critical outcomes that may occur. These include the potential for cardiovascular thrombotic events (such as myocardial infarction or stroke), especially with higher doses or longer duration of use. Gastrointestinal bleeding, ulceration, or perforation are also documented as serious risks. Other critical risks involve severe liver damage/failure and serious allergic reactions (e.g., anaphylaxis, severe skin reactions).

Safety Restrictions and Special Populations

Safety documents establish formal restrictions on the use of this medicine. Clonac-Plus is contraindicated (must not be used) during the third trimester of pregnancy and in patients with established severe heart failure, severe liver impairment, or severe kidney impairment. It is also restricted in patients with active gastrointestinal bleeding or ulcers. Regulatory information notes that the risk of certain serious events may increase with higher doses or prolonged exposure.

Overdose and Emergency Response

Overdose of Clonac-Plus is primarily governed by the established toxicological profile of its two active components: Diclofenac and Acetaminophen. The most severe, life-threatening outcome documented by regulatory authorities is irreversible hepatic necrosis and liver failure from the acetaminophen component. Initial manifestations may include nausea, vomiting, abdominal discomfort, and drowsiness, but it is officially noted that symptoms may be absent in the first hours following ingestion, preceding the delayed onset of severe liver damage. Overdose of the diclofenac component poses a risk of serious gastrointestinal complications, including hemorrhage and ulceration.

Immediate Medical Attention is Required

Due to the potential for delayed, severe, and fatal organ damage, regulatory agencies mandate that you seek immediate medical attention and contact a Poison Control Center right away, even if no outward signs or symptoms are present. Prompt intervention is critical, as the specific antidote for acetaminophen toxicity, N-acetylcysteine (NAC), is most effective when administered within eight hours of ingestion. Management involves continuous hospital monitoring of hepatic and renal function, along with supportive and symptomatic treatment. Individuals with pre-existing liver disease or chronic alcohol use face a heightened risk of serious complications.

Therapeutic Uses of Clonac - Plus

What Clonac-Plus Treats: Main Uses and Benefits

The primary therapeutic role of Clonac-Plus is to provide symptomatic relief by addressing symptoms related to physical discomfort and systemic imbalance. This combination is commonly used in situations involving certain distressing symptoms, contributing to symptomatic relief across key domains. This is relevant when supportive symptom management is appropriate across painful, inflammatory, and febrile states.


Managing Musculoskeletal Pain and Joint Inflammation

This medication is commonly used in conditions presenting with systemic or localized discomfort and inflammatory or irritative states, such as in osteoarthritis, rheumatoid arthritis, and ankylosing spondylitis. It helps address symptom clusters that may appear suddenly or intensify over time, providing supportive relief that contributes to improved day-to-day comfort during symptomatic periods by easing joint stiffness and swelling.


Relief for Acute Injuries and Episodic Discomfort

Clonac-Plus is relevant when supportive symptom management is appropriate for acute episodes and recurrent manifestations, applied in settings where symptoms become temporarily overwhelming. Commonly used across conditions presenting with acute episodes and episodic or fluctuating manifestations. It assists with maintaining functional stability and provides support that helps ease the overall symptom burden during challenging symptomatic phases.


Quick Fact: Symptom Management

Focus Description
Symptom Axes Helps address physical discomfort and systemic imbalance
Condition Types Used in conditions involving inflammatory or irritative states and episodic manifestations
Patient Benefit Contributes to improved comfort and assists with maintaining functional stability

Regulatory References

  1. Diclofenac Sodium and Paracetamol Tablet 50 + 500mg - EFDA

Eligibility and Restrictions for Use

The eligibility to use Clonac - Plus (a combination of Diclofenac and Acetaminophen/Paracetamol) is strictly defined by official regulatory guidelines, focusing on specific patient conditions and physiological states.

Contraindications and Prohibited Use

Absolute Contraindications prohibit the use of this medicine in patients with a known hypersensitivity to the active ingredients or other Nonsteroidal Anti-inflammatory Drugs (NSAIDs) that may precipitate asthma. Use is forbidden in patients with active gastrointestinal ulceration, bleeding, or perforation, and those with severe organ failure affecting the heart (e.g., established heart failure NYHA Class II-IV), liver, or kidneys. Patients with established Ischaemic Heart Disease, Peripheral Arterial Disease, and/or Cerebrovascular Disease are non-eligible. Furthermore, the medicine is contraindicated for pain treatment in the setting of Coronary Artery Bypass Graft (CABG) surgery.

Age and Reproductive Status

The medicine is contraindicated for children under 15 years of age. Older adult patients require particular caution due to documented increased risk of serious adverse events. Use is contraindicated during the last trimester of pregnancy and is generally not recommended for women who are breastfeeding.

What should I know about interactions with other medicines?

Interactions with Other Medicines and Products

The components in Clonac - Plus can interact with several categories of medicinal products, potentially increasing the risk of adverse effects or altering the effectiveness of the medications. It is essential to inform a healthcare provider about all current prescriptions, over-the-counter drugs, and supplements before starting treatment.

Key Interaction Categories

Category of Interacting Product Interacting Medicines (Examples) Interaction Note
Other Anti-inflammatory Drugs (NSAIDs) Aspirin (acetylsalicylic acid), Ibuprofen, other diclofenac-containing medicines, other salicylates Concurrent use is generally restricted as it significantly increases the risk of serious gastrointestinal side effects, such as bleeding or ulceration, without providing additional therapeutic benefit.
Anticoagulants Warfarin, other "blood thinners" Co-administration may interfere with the anticoagulant's action and increase the overall risk of bleeding. Close clinical monitoring and possible dose adjustments are typically required.

Additional Interaction Considerations

The product may also interact with other therapeutic agents, including certain diuretics, blood pressure medications, and lithium. Non-selective Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), such as a component in this product, are known to affect kidney function, which can, in turn, influence the levels of certain concurrently administered drugs, like lithium and methotrexate. The combination of NSAIDs with some antidepressants, specifically Selective Serotonin Reuptake Inhibitors (SSRIs), may also increase the risk of gastrointestinal bleeding. Therefore, a comprehensive review of all current medications by a healthcare professional is necessary to manage these potential interactions.

Mechanism of Action

How Clonac - Plus Works

Dual-Site Modulation of Prostaglandin Synthesis

This component of the mechanism acts by competitively inhibiting Cyclooxygenase (COX) enzymes, primarily the COX-2 isoform at peripheral sites of tissue injury, which blocks the synthesis of Prostaglandin E2 ( PGE2). This suppression of PGE2 at the periphery reduces the chemical sensitization of peripheral nociceptors and decreases the magnitude of local inflammatory pathway activation, while a separate mechanism targets and inhibits COX activity centrally in the brain.

Central Regulation of Nociceptive Signals and Thermoregulation

The central-acting component targets Cyclooxygenase activity primarily within the Central Nervous System (CNS), particularly in the hypothalamus, which supports the lowering of the elevated hypothalamic thermoregulatory set-point. It also modulates descending pain inhibitory pathways, potentially involving the TRPV1 channel via an active metabolite, which modifies the processing of nociceptive signals within the CNS.

Complementary Mechanistic Synergy

The combination leverages dual-site action to achieve a more complete physiological modulation: Diclofenac provides effective peripheral enzyme inhibition to suppress the activation of peripheral inflammatory pathways and local nociceptive signaling, while Acetaminophen focuses on central pathways to modulate the hypothalamic set-point and central nociceptive signal processing. This mechanism facilitates concurrent biological action against peripheral inflammatory mediator production and central nociceptive signal processing.

Dosage and Administration Information

How to Use Clonac - Plus

This section describes the administration guidelines for the Diclofenac and Acetaminophen (Paracetamol) fixed-dose combination.


Administration Scope

Feature Instruction
Route of Administration The medicine is taken via the oral route (by mouth).
Standard Dosing Schedule The usual adult dose is one tablet (e.g., 50 mg Diclofenac / 500 mg Paracetamol). The maximum total daily intake is strictly limited to three tablets to prevent exceeding the dose limit for the components.
Frequency and Timing The total daily dose should be divided and administered two to three times a day.
Intake Condition Tablets must be swallowed whole with liquid and should be taken with or immediately after food.

Procedural and Dose Selection Rules

Step Sequence:

  • The tablet must be swallowed whole without crushing, breaking, or chewing, as the dosage form requires intact ingestion.
  • Doses should be repeated two or three times daily, but the total intake must never exceed the stated maximum daily dose.

Dose Duration Principle: Guidelines emphasize using the lowest effective dose for the shortest duration necessary to address symptoms, and the need for continued therapy should be re-evaluated periodically.

Age-Group Rules:

  • Older adults are advised to use a reduced dosage, and specifically the lowest effective dose should be administered in frail or low-body-weight patients.
  • The adult-strength tablet formulation is not indicated for children.

Recent Clinical Evidence

Research Studies for Clonac - Plus

Research Studies for Acute Pain

The evidence base for Clonac - Plus in acute settings was evaluated in Randomized Controlled Trials (RCTs) and systematic meta-analyses that utilize data from these studies. This research was observed in contexts relevant in conditions associated with acute or disruptive episodes, such as short-term symptoms associated with post-operative or acute musculoskeletal conditions. Studies monitored outcomes linked to inflammatory or irritative states, primarily examining changes in pain scores over short, defined time intervals.

Findings describe patterns observed in the studies where the combination was evaluated in settings of immediate post-operative pain. Research describes changes measured during the study period when the combination was observed in comparison to a placebo or its individual components. Some trials described patterns related to the measurement of opioid consumption among observed groups. This research contributes to understanding short-term symptom changes. The available evidence for this setting is broadly classified as a High level of evidence.

Research Studies for Chronic Musculoskeletal Pain

The research examining the combination for conditions characterized by fluctuating or episodic manifestations, such as osteoarthritis and rheumatoid arthritis, is often framed by Model-Based Meta-Analyses (MBMA) and Systematic Reviews. These studies explore outcomes reflecting daily functioning or activity level and evaluate patient-reported outcomes describing perceived discomfort over longer periods. Research examined conditions marked by functional limitations.

Findings derived from this area often rely on extrapolation of data gathered from acute pain trials or from studies that used different formulations. Studies report how symptoms evolved in the observed populations, specifically in adults and older adults with knee or hip osteoarthritis, over observation periods that typically ranged from 6 to 12 weeks. The available evidence for this specific chronic pain context is generally assigned a Moderate level of evidence.

What Research Limitations and Gaps Exist

The key research limitations are that the follow-up durations were limited in many studies, and the core data for chronic use is often based on extrapolation rather than direct, long-term trials of the specific oral combination. Research described mixed findings related to patterns of combined effects in chronic pain based solely on oral combination use. Data for certain groups, such as children or those with specific comorbidities, remain insufficient.

Key Studies & References Fixed-dose combination of NSAIDs and Acetaminophen (Paracetamol) are often employed to increase analgesic efficacy - WHO Drug Information

Frequently Asked Questions (FAQ)

Common questions about Clonac - Plus (FAQ)


Q: How quickly can someone expect Clonac - Plus to start working?

Studies and official information suggest that the medicine’s components reach their highest concentration in the bloodstream (known as peak plasma concentration) generally within 30 minutes to 2 hours after taking a dose. This period is typically associated with the onset of the medicine's action.


Q: How long does the effect of one dose of Clonac - Plus usually last?

The official administration schedule dictates that the total daily dose should be divided and taken two to three times per day. This frequency indicates that the therapeutic effect generally lasts an interval of 8 to 12 hours.


Q: Do I need a prescription to get Clonac - Plus?

The prescription status of this fixed-dose combination, which includes the component Diclofenac, varies depending on the country and local regulations. In many major regulatory regions, the scheduling and dosage of Diclofenac are often strictly controlled and may require a prescription.


Q: Can Clonac - Plus affect my ability to drive or operate machinery?

Regulatory documents state that refraining from driving or operating complex machinery is advised if a patient experiences adverse effects such as visual disturbances, dizziness, vertigo, or drowsiness.


Q: What happens if I miss a dose of Clonac - Plus?

Official information describes that a missed dose is taken as soon as it is remembered, unless the time for the next scheduled dose is near. If it is nearly time for the next dose, the missed dose is skipped. Product labels state that a double dose is not to be taken to compensate for a missed one.


Q: Is Clonac - Plus considered a controlled substance?

Clonac - Plus contains Diclofenac and Acetaminophen, which are both non-opioid components. In major regulatory jurisdictions, medicines composed only of these ingredients are generally not classified as controlled substances.


Q: What is the risk of dependence or addiction with Clonac - Plus?

Regulatory safety documents, safety reviews, and official labeling do not indicate a risk of dependence or addiction associated with the non-opioid components Diclofenac and Acetaminophen present in this combination medicine.


Q: Does Clonac - Plus interact with alcohol?

Official patient information explicitly notes that alcohol consumption interacts with both active components. Drinking alcohol increases the risk of stomach bleeding associated with Diclofenac and increases the risk of serious liver side effects associated with Acetaminophen.


Q: What should I do if I experience a potential interaction while taking Clonac - Plus?

Official guidance states that seeking immediate advice from a doctor or pharmacist is necessary if symptoms of a potential interaction occur. In the case of a severe reaction, the official guidance often recommends immediate cessation of the medicine.


Q: Is it possible for Clonac - Plus to cause mood changes?

The medicine can rarely cause central nervous system effects. Regulatory labels for the components sometimes list effects like anxiety, insomnia, or irritability under the category of psychiatric or nervous system disorders.


Q: Is the onset of action for Clonac - Plus different for everyone?

Official information indicates that pharmacokinetic parameters, which influence the rate at which the medicine is absorbed and begins to act, can vary from person to person. Differences in individual metabolism and absorption rate are factors that may influence the time it takes for the medicine to start working.


Q: What happens if someone takes too much Clonac - Plus (informational query)?

Taking more than the stated maximum daily dose is considered an overdose and can lead to serious adverse effects, including severe liver damage and increased risk of gastrointestinal bleeding. Official information indicates that immediate medical attention is necessary for suspected overdose.


Q: Are there specific symptoms that warrant immediate medical attention while on Clonac - Plus?

Official regulatory documents list several severe symptoms requiring urgent care. These include signs of a serious allergic reaction (such as swelling of the face, throat, or mouth), signs of heart problems (like chest pain or sudden shortness of breath), or signs of severe stomach bleeding (such as passing black/tarry stools). Official documents specify that these symptoms are considered medical emergencies that necessitate immediate attention.


Q: Can taking Clonac - Plus affect blood tests?

The components of the medicine have been known to cause elevated liver enzyme levels. For this reason, official documents often recommend the regular monitoring of hepatic function (liver function) during prolonged treatment, which involves specific blood tests.


Q: Are there any reports of Clonac - Plus affecting sleep?

As the medicine's components can affect the central nervous system, some regulatory labels for the components list effects such as insomnia or other sleep disturbances within the side effects profile.


Q: Are there any food or drinks that should be avoided while taking Clonac - Plus?

Regulatory documents advise taking the medicine with or immediately after food to help prevent stomach upset. Beyond the warnings regarding alcohol consumption, official information generally does not list specific foods or non-alcoholic drinks that must be avoided.


Q: Does Clonac - Plus interact with herbal supplements?

Official patient information states that informing a healthcare provider about all medicines and products being used is necessary. This includes prescribed medicines, over-the-counter drugs, and all herbal remedies and supplements, as these may carry a risk of interaction.


Q: Do studies suggest Clonac - Plus is effective for long-term use?

Regulatory documents suggest that treatment should be for the shortest duration necessary. Although evidence exists for chronic conditions, safety warnings note that the risk of serious side effects, such as cardiovascular events, may increase with prolonged exposure to the medicine.


Q: Can I take Clonac - Plus if I have high blood pressure?

Official warnings and precautions sections note that patients with a history of hypertension (high blood pressure) or those using blood pressure medications require caution and close monitoring. This is because nonsteroidal anti-inflammatory drugs (NSAIDs) can be associated with fluid retention.


Q: Is Clonac - Plus intended for short-term or long-term use?

Official regulatory documents define a dosing principle that mandates using the lowest effective dose for the shortest duration necessary to address symptoms. The need for continued therapy should be re-evaluated periodically.


Q: What is the official risk classification of Clonac - Plus (e.g., pregnancy category)?

Official product information strictly contraindicates the use of this medicine during the last trimester of pregnancy due to documented risks to the developing fetus. The specific risk category for the earlier trimesters varies by region.


Q: Is Clonac - Plus linked to any dietary restrictions?

Regulatory information advises taking the medicine with or immediately after food. Outside of this instruction and the warning about alcohol, there are generally no specific dietary restrictions listed in official product information.


Q: What is the average duration of treatment with Clonac - Plus?

Regulatory documents do not prescribe a standardized average duration of treatment. Instead, they strictly advise using the shortest duration necessary to manage symptoms and require the need for continued therapy to be re-evaluated regularly.

How should Clonac - Plus be stored and disposed of?

How to Store and Dispose of Clonac - Plus

Storage of Clonac-Plus must strictly follow regulatory specifications to maintain stability. The tablets must be stored at controlled room temperature, generally defined as 20–25°C (68–77°F), or below 30°C. The medicine must be kept in its original, closed container and protected from light, moisture, and freezing.

Required Conditions

Condition Requirement
Temperature Controlled Room Temperature (20–25°C)
Container Store in original, closed container
Protection Protect from light, moisture, and freezing

Crucially, to prevent accidental ingestion, keep the medicine out of the sight and reach of children. Unused or expired Clonac-Plus must be discarded. Patients are instructed to consult a pharmacist or healthcare professional for the proper disposal method, as recommended by official guidelines.

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

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