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Biofenac 100mg

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Biofenac 100mg

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Medically reviewed

Rosario Oropesa

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.

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Overview of Biofenac 100mg

Quick Facts

Property Description
Active ingredient Aceclofenac
Form Film-coated tablet
Pharmacological class Nonsteroidal Anti-inflammatory Drug (NSAID)
Common purpose Relief of pain, inflammation, and fever
Origin Synthetic (Phenylacetic acid derivative)

What Type of Medicine is Biofenac (Aceclofenac)?

Biofenac 100mg is a prescription-only synthetic medication whose active constituent is the drug substance Aceclofenac, classifying it fundamentally as a Nonsteroidal Anti-inflammatory Drug (NSAID). Aceclofenac is a phenylacetic acid derivative, chemically distinct from older NSAIDs, designed specifically for addressing pain and inflammation. It is characterized by its potent anti-inflammatory properties, a characteristic of its classification.

Composition and Form of the Aceclofenac Preparation

The typical formulation is an orally administered, film-coated tablet, with the 100 mg strength designating the precise quantity of the active ingredient, Aceclofenac, within each unit. This medicine is a single-ingredient product designed for ingestion. Aceclofenac is absorbed after oral intake, establishing the tablet form as a means of systemic delivery.

General Benefit and Purpose of Aceclofenac

The primary therapeutic purpose of Aceclofenac is to provide relief from the general discomfort and physical signs associated with widespread inflammatory processes and tissue damage. Its core action is based on the inhibition of the body's synthesis of prostaglandins, the chemical messengers of pain and swelling. This mechanism enables the drug to address the symptoms of inflammation by simultaneously achieving analgesia (pain relief), anti-inflammation (reduction of swelling), and antipyresis (fever reduction), offering fundamental symptomatic relief in scenarios such as musculoskeletal discomfort.

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What side effects are possible with Biofenac 100mg?

Possible Side Effects and Safety Information

The safety profile for Biofenac (Aceclofenac) describes potential adverse reactions across several body systems, based on official regulatory documentation. The classification of effects is standardized by frequency, ranging from common to very rare.

Frequency Classification Examples of Documented Adverse Reactions
Common (1 in 100 to 1 in 10) Dizziness, dyspepsia, abdominal pain, nausea, and elevation of hepatic enzyme levels.
Uncommon (1 in 1,000 to 1 in 100) Vomiting, flatulence, gastritis, rash, pruritus (itching), and increased blood urea or creatinine.
Rare (1 in 10,000 to 1 in 1,000) Anemia, anaphylactic reactions, visual disturbances, and gastrointestinal bleeding.

Serious adverse reactions, as documented in regulatory sources for Aceclofenac and the NSAID class, include the potential for gastrointestinal haemorrhage, ulceration, or perforation, which can occur at any time during therapy. Furthermore, the use of the medicine may be associated with a small increased risk of arterial thrombotic events, such as myocardial infarction or stroke, particularly with higher doses and prolonged use. Very rare, but serious, documented reactions include severe skin conditions like Stevens-Johnson syndrome.

The official labeling includes population-specific safety considerations. Older adults have a documented increased frequency of adverse reactions, particularly serious gastrointestinal risks. Safety surveillance is necessary for patients with mild to moderate renal or hepatic impairment. Use is not recommended during the last trimester of pregnancy, and the safety profile has not been established for children.

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Overdose and Emergency Response

Overdose and When to Seek Help

This section describes the officially documented clinical profile of Biofenac (Aceclofenac) overdose, based strictly on government regulatory information.

Documented Manifestations and Severe Outcomes

Overdose may present with various signs, often involving the gastrointestinal and nervous systems. Documented manifestations include nausea, vomiting, abdominal pain, and CNS effects such as dizziness, headache, and somnolence. In severe or life-threatening scenarios, the official prescribing information details potential severe systemic outcomes that may occur, including acute renal failure, hepatic failure, and pancreatitis. Neurological escalation, such as convulsions, may also be present.

Required Emergency Action

Immediate medical attention must be sought in all cases of suspected overdose. The elderly population is noted to be at an increased risk of serious adverse events associated with the NSAID class.

Focus Regulatory Statement
Antidote Status No specific antidote is known for Aceclofenac overdose.
Supportive Measures Treatment is primarily symptomatic and supportive. This may involve procedures like gastric lavage or administration of activated charcoal if indicated for recent, large ingestions.
Monitoring Requirements Hospital monitoring is generally required, especially for severe presentations. The standard observation period is a minimum of four hours, and management protocols include specific laboratory investigations to monitor kidney and liver function during this time.
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Therapeutic Uses of Biofenac 100mg

What Biofenac 100mg Treats: Main Uses and Benefits

Biofenac (Aceclofenac) is commonly used to help with symptoms related to inflammatory or irritative states, primarily in the musculoskeletal system. This medication may be part of symptomatic management applied across domains where additional symptomatic support is needed in major rheumatic conditions. It is often used for managing conditions characterized by persistent discomfort, such as Osteoarthritis, Rheumatoid Arthritis, and Ankylosing Spondylitis.

The medication is relevant in clinical settings that involve acute or disruptive symptom patterns, and may be part of symptomatic management in various conditions characterized by periods of heightened symptoms. This helps address symptom clusters that may become intense or disruptive, such as joint swelling and persistent stiffness, which interfere with daily functioning. By contributing to easing the overall symptom load, it may assist with maintaining functional stability and supports general well-being during symptomatic phases.

It is also applied in scenarios where additional management of discomfort is required, such as managing pain following soft tissue injuries or certain dental procedures.

Quick Fact: Relief for Musculoskeletal Discomfort
Focuses on: Pain, tenderness, swelling, and stiffness associated with inflammatory joint and tissue conditions.
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Eligibility and Restrictions for Use

Who Can and Cannot Use Biofenac 100mg (Aceclofenac)

This information reflects official regulatory eligibility guidelines for Biofenac (Aceclofenac).

Contraindications: Who Must Not Use This Medicine

Biofenac 100mg is contraindicated (must not be used) for individuals with the following conditions:

  • Hypersensitivity or Allergy: Known allergy to aceclofenac, aspirin, or any other Nonsteroidal Anti-inflammatory Drug (NSAID).
  • Gastrointestinal (GI) Bleeding: Active, recurrent, or a history of GI bleeding or peptic ulcers.
  • Severe Organ Failure: Severe hepatic (liver) or severe renal (kidney) failure.
  • Cardiovascular Disease: Established congestive heart failure (NYHA Class II-IV), ischemic heart disease, peripheral arterial disease, or cerebrovascular disease.
  • Pregnancy: Use during the third trimester of pregnancy is strictly forbidden.

Restricted and Special Populations

Population Group Eligibility Status Key Restriction/Consideration
Children & Adolescents (Under 18) Not Recommended Safety and efficacy are not established in this age group.
Older Adults (Elderly) Conditional Use Use the lowest effective dose for the shortest duration due to increased risk of GI and cardiovascular side effects.
Mild Organ Impairment Conditional Use Caution and dose reduction (especially for mild hepatic impairment) are necessary.
Pregnancy/Lactation Avoided Use is not recommended during the first and second trimesters of pregnancy or while breastfeeding.

Eligibility is limited to adults who do not have any of the absolute contraindications listed above. Conditional use requires medical supervision and careful risk assessment.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

Biofenac (Aceclofenac) has documented interaction patterns that primarily involve pharmacodynamic risk amplification and pharmacokinetic alterations of co-administered medicines, as detailed in regulatory documents.

Category of Interacting Substance Officially Documented Interaction Outcome
Other NSAIDs and Aspirin Co-administration is formally avoided due to a documented increase in the risk of serious gastrointestinal events, such as bleeding and ulceration.
Anticoagulants (e.g., Warfarin) Aceclofenac is documented to enhance the activity of anticoagulants, requiring close monitoring of coagulation status.
Lithium and Digoxin Aceclofenac may decrease the renal clearance of these substances, leading to increased plasma concentrations and potential toxicity.
Antihypertensives and Diuretics A reduction in the efficacy of these medicines is documented. Co-administration, particularly with ACE-inhibitors and ARBs, may also increase the risk of acute renal insufficiency, especially in the elderly.
Mifepristone Mandatory timing rule: Aceclofenac must not be used for 8–12 days after Mifepristone administration as it may reduce the latter's therapeutic effect.
Corticosteroids and SSRIs Co-administration is documented to increase the risk of gastrointestinal ulceration or bleeding.

This interaction structure necessitates formal avoidance for certain combinations and mandatory clinical surveillance when co-administered with medicines whose exposure or clearance is sensitive to Nonsteroidal Anti-inflammatory Drugs (NSAIDs).

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Mechanism of Action

How Biofenac 100mg Works

Biofenac (Diclofenac) exerts its action by engaging mechanisms that influence biochemical processes, primarily targeting the prostaglandin synthesis pathway.

Enzyme Inhibition and Cascade Blockage

This mechanism describes how Biofenac acts as a non-selective inhibitor of the cyclooxygenase (COX) enzymes. The drug binds to the active site of both COX-1 and COX-2 isoforms, limiting their enzymatic function. This interaction modifies the molecular steps necessary for the conversion of arachidonic acid into eicosanoids (prostaglandins, thromboxanes, and prostacyclin). By suppressing this conversion, the drug influences the overall dynamics of mediator production.

Modulation of Peripheral Nociceptor Signaling

The resulting functional consequence of enzyme inhibition is the decrease in local mediator concentration at peripheral sites. Reduced prostaglandin levels alter the excitability threshold of peripheral pain receptors (nociceptors). This change in the chemical environment affects the signaling status within afferent pathways, contributing to a physiological change in the nociceptor response to stimuli.

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Dosage and Administration Information

Biofenac 100mg is an orally administered medication, supplied as a film-coated tablet and used according to guidelines regarding dosing and timing. A general principle for use is to employ the lowest effective dose for the shortest duration necessary to address symptoms.


Official Administration Guidelines

Feature Instruction
Route of Administration Oral administration.
Standard Dosing Schedule The standard total recommended dose is 200 mg daily, administered as two separate 100 mg doses.
Frequency and Timing The standard regimen is taken twice daily, typically as one tablet in the morning and one in the evening.
Intake Timing The tablets should be taken with or immediately after food.
Preparation Requirements Tablets must be swallowed whole with liquid and must not be crushed or chewed.

Population-Specific Use Rules

Standard guidelines provide specific instructions for certain groups:

  • Hepatic Impairment: Patients with hepatic impairment should begin treatment with a reduced initial daily dose of 100 mg.
  • Older Adults: Dose modification is not typically required, though the lowest effective dose should be maintained due to increased risk factors.
  • Children: Use of the drug is not recommended in children under 18 years of age due to a lack of clinical data.

If a dose is missed, it should be skipped, and the next dose taken at the regular time; a double dose must not be taken to compensate.

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Recent Clinical Evidence

Research evidence / Overview of studies for Biofenac 100mg

Biofenac 100mg was studied for conditions characterized by fluctuating or episodic manifestations. Studies in this area were applied in research contexts involving fluctuating or unstable symptoms and were primarily used in research exploring how symptoms change over time. Studies help show what has been observed so far, and the evidence contributes to the broader evidence landscape, but research provides context but not individual predictions.

Studies for Chronic Conditions Characterized by Fluctuating Manifestations

Studies monitored conditions presenting with cycles of stability and flare-ups, where symptoms may vary in intensity. Trials were applied in studies examining patient-reported experiences over time and used in observational settings evaluating daily-life functioning. These studies explored outcomes reflecting daily functioning or activity level and patient-reported outcomes describing perceived discomfort.

Evidence in these settings was observed in studies monitoring how symptoms changed over time in the observed populations. Some data show patterns related to changes measured during the study period, particularly for outcomes related to systemic or functional imbalance. However, the findings were mixed across different research settings, and studies report that the observed changes may reflect patterns.

A limitation is that follow-up durations were limited in many of the trials relevant in evidence describing how symptoms are measured. Therefore, while research describes short-term changes, long-term effects are not fully established, and certainty remains low for sustained results. Evidence highlights what is known — and what is still uncertain.

Studies for Acute, Disruptive Episodes

Biofenac 100mg was studied for conditions associated with acute or disruptive episodes. Research in this area examined temporary physiological imbalance, specifically focusing on outcomes capturing phases of heightened symptom activity and outcomes linked to inflammatory or irritative states. These studies were primarily research exploring short-term symptom changes and were conducted during periods of increased symptom activity.

In these short-term studies, evidence indicates patterns related to changes in outcomes describing episodic or acute changes. The research highlights changes measured during the study period, and findings appears to describe patterns related to patient-reported outcomes describing perceived discomfort. This evidence helps contextualize how patients reported their experience during episodes where symptoms become more noticeable.

Comparative evidence is lacking when assessing the findings against other potential approaches. Study results reflect the specific conditions under which they were conducted.

Findings in Specific Patient Groups

Research on Biofenac 100mg is ongoing, but data for certain groups remain insufficient. For individuals with conditions marked by functional limitations, the evidence is limited, and subgroup findings are uncertain. Sample sizes were modest in some of the studies focusing on specific demographics. The results apply only to the populations studied.

While the studies contribute to the broader evidence landscape, there is limited information for long-term outcomes in specific populations. Findings describe group patterns, not personal outcomes, and research does not determine whether an individual will respond similarly.

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Frequently Asked Questions (FAQ)

Common questions about Biofenac 100mg (FAQ)

Q: What conditions is Biofenac 100mg officially indicated to treat?

A: According to official product documents, Biofenac 100mg is indicated for the relief of pain and inflammation associated with musculoskeletal conditions. Official product information states indications for relief of pain and inflammation associated with conditions such as Osteoarthritis, Rheumatoid Arthritis, and Ankylosing Spondylitis.

Q: What is the role of Biofenac 100mg in managing pain from muscle sprains and strains?

A: Regulatory labels describe this medicine’s use for treating pain and inflammation related to various musculoskeletal disorders. This includes injuries and conditions affecting muscles, ligaments, and joints.

Q: Is Biofenac 100mg the same active ingredient as Diclofenac?

A: The active ingredient in this medicine is Aceclofenac. While Aceclofenac is chemically related to Diclofenac, they are not the same drug substance. Official information classifies Aceclofenac as a derivative of phenylacetic acid.

Q: Is Biofenac 100mg classified as an opioid or narcotic substance?

A: Biofenac 100mg is officially classified as a Nonsteroidal Anti-inflammatory Drug (NSAID). Regulatory bodies do not classify it as an opioid, narcotic, or controlled substance.

Q: What are the most commonly reported side effects of Biofenac 100mg?

A: Official product information indicates that the most frequently reported adverse events are common gastrointestinal issues. These include indigestion (dyspepsia), abdominal pain, nausea, and dizziness.

Q: Is there a known long-term risk associated with using Biofenac 100mg regularly?

A: Studies and official information indicate that risks of serious adverse events may be higher with prolonged use and higher doses. This includes potential risks related to the gastrointestinal system and the cardiovascular system.

Q: Can Biofenac 100mg affect kidney function, and what should I watch for?

A: This medicine is known to cause changes in laboratory tests, such as an increase in blood urea and creatinine levels. Official documents advise caution for individuals with pre-existing kidney impairment. Monitoring of kidney function may be required by healthcare professionals during treatment.

Q: What are the severe side effect symptoms that would require immediate medical attention?

A: Regulatory sources describe symptoms of serious events that require immediate attention. These can include passing black, tarry stools, vomiting blood, or experiencing signs of an allergic reaction like swelling or difficulty breathing.

Q: Can Biofenac 100mg cause feelings of dizziness, drowsiness, or fatigue?

A: Dizziness is a commonly reported effect when using this medicine. Less frequent adverse events, such as feelings of drowsiness or fatigue, have also been reported in regulatory documents.

Q: Is it possible for Biofenac 100mg to cause increased skin sensitivity to the sun?

A: Official labeling for this class of medicine, NSAIDs, notes that a skin reaction to sunlight, known as photosensitivity, is a possible adverse effect.

Q: Does Biofenac 100mg cause fluid retention or swelling in the hands or feet?

A: Swelling of the legs, feet, or face (oedema) and general water retention are reported as possible adverse effects in official documents.

Q: What types of prescription medicines should be used with caution alongside Biofenac 100mg?

A: Official product information lists several categories of prescription medicines that require caution or close monitoring when used with Biofenac 100mg. This includes blood thinners (anticoagulants), diuretics, and medicines used for high blood pressure.

Q: What is the official guidance on consuming alcohol while taking Biofenac 100mg?

A: Consuming alcohol while using this medicine may increase the risk of serious gastrointestinal side effects. This is associated with an increased risk of stomach or intestinal bleeding.

Q: Is Biofenac 100mg suitable for people with a prior history of stomach ulcers or GI bleeding?

A: This medicine is contraindicated (should not be used) if a person has active gastrointestinal bleeding or severe ulcers. Official guidance indicates that caution should be exercised when this medicine is used by individuals with a past history of these conditions.

Q: Are there special warnings for people with a history of asthma or sensitivity to aspirin?

A: This medicine is contraindicated for people who have a history of allergic reactions, such as asthma or hives (urticaria), after taking aspirin or other NSAIDs.

Q: Why is it important to take Biofenac 100mg with food or milk?

A: Official instructions recommend taking the tablet with or immediately after food or milk. This may help minimize the risk of gastrointestinal side effects such as stomach irritation and indigestion.

Q: Is Biofenac 100mg associated with any risk of dependence or addiction?

A: As a Nonsteroidal Anti-inflammatory Drug (NSAID), this medicine is not associated with the risk of dependence or addiction.

Q: Can Biofenac 100mg cause changes in liver enzyme levels that a doctor would monitor?

A: This medicine can cause an elevation in liver enzyme levels. Official documents recommend that liver function may require regular monitoring by a healthcare professional, especially for individuals taking the medicine for a prolonged period.

Q: Why is Biofenac 100mg usage cautioned against or restricted around heart bypass surgery?

A: This medicine is contraindicated, meaning it should not be used, in patients who are preparing for or recovering from Coronary Artery Bypass Graft (CABG) surgery.

Q: What are the official warnings regarding the use of Biofenac 100mg during pregnancy or breastfeeding?

A: Use is generally advised to be avoided throughout pregnancy and while breastfeeding. Regulatory documents specifically state that this medicine is contraindicated during the last trimester of pregnancy.

Q: How is a 'non-steroidal anti-inflammatory drug' defined in simple, patient-friendly terms?

A: A Nonsteroidal Anti-inflammatory Drug (NSAID) is a medicine that works by blocking the production of specific chemical messengers in the body. These messengers, called prostaglandins, are responsible for causing pain, swelling, and inflammation.

Q: If my symptoms improve, is it safe to discontinue Biofenac 100mg immediately on my own?

A: Official patient information states that this medicine should only be discontinued following the advice of the prescribing doctor.

Q: Can Biofenac 100mg cause ringing in the ears (tinnitus)?

A: While not listed as a common side effect, official documents note that ringing in the ears (tinnitus) has been reported as a possible symptom in cases of overdose.

Q: Does Biofenac 100mg cause weight gain or weight loss?

A: Official product information notes that weight increase has been reported as a rare adverse event associated with the use of this medicine.

Q: Do patients need to avoid operating machinery or driving while taking Biofenac 100mg?

A: Official documents state that driving or operating machinery may need to be avoided if certain adverse effects, such as dizziness or changes in vision, are experienced.

Q: What is the distinction between Biofenac 100mg and a medicine classified as a COX-2 inhibitor?

A: Biofenac 100mg is a non-selective inhibitor, meaning its mechanism blocks both COX-1 and COX-2 enzymes. This is different from a selective COX-2 inhibitor, which primarily targets only the COX-2 enzyme.

Q: Why is it emphasized that Biofenac 100mg should be taken for the 'shortest possible time'?

A: Regulatory guidance states that using the lowest effective dose for the shortest duration necessary may help minimize undesirable effects, particularly those affecting the digestive and cardiovascular systems.

Q: Can Biofenac 100mg usage lead to elevated blood pressure readings?

A: This medicine, like other nonsteroidal anti-inflammatory drugs, may be associated with the new onset of high blood pressure (hypertension). It may also worsen pre-existing high blood pressure conditions.

Q: What should I know about Biofenac 100mg if I have a history of inflammatory bowel conditions?

A: Official safety information indicates that caution is necessary for individuals with a history of certain gastrointestinal disorders. This includes conditions such as ulcerative colitis or Crohn's disease.

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How should Biofenac 100mg be stored and disposed of?

How to Store and Dispose of Biofenac 100mg (Aceclofenac)

The official storage and disposal of Biofenac 100mg tablets are strictly governed by regulatory requirements.

Official Storage Conditions

  • Temperature: Store the medicine at a temperature that does not exceed 25 C.
  • Protection: The product must be stored in the original package to protect it from light and moisture.
  • Child Safety: Like all medicines, Biofenac 100mg must be kept out of the sight and reach of children.

Disposal Requirements

Unused or expired medicine must be handled and discarded in accordance with local regulations.

  • Waste Restriction: The product should not be disposed of via wastewater or regular household waste.
  • Compliance: Disposal must follow official procedures, typically involving drug take-back programs or specific pharmaceutical waste channels.

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

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