Melfen

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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.

Overview of Melfen

Quick Facts: Melfen

Property Description
Active Ingredient Ibuprofen
Form Oral tablet, Capsule (Systemic)
Pharmacological Class Nonsteroidal Anti-Inflammatory Drug (NSAID)
Common Use Symptomatic relief of pain, fever, and inflammation
Origin Synthetic isobutylpropanoic acid derivative

What Type of Medicine is Melfen? (Classification and Origin)

Melfen is the proprietary name for a medication whose active compound is Ibuprofen, a substance formally classified as a propionic acid derivative and a core member of the Nonsteroidal Anti-Inflammatory Drug (NSAID) pharmacological group. This classification establishes the medicine's three principal actions: it is analgesic (pain-relieving), antipyretic (fever-reducing), and anti-inflammatory. The compound is a synthetic isobutylpropanoic acid derivative manufactured for systemic administration, meaning it is typically prepared in solid oral forms such as tablets or capsules to be absorbed into the bloodstream. Melfen is recognized for its broad application in managing symptoms commonly associated with everyday aches, distinguishing it as a versatile over-the-counter (OTC) pain reliever.

Melfen: Composition and General Purpose

The composition of Melfen is based on the single active ingredient Ibuprofen, along with necessary pharmaceutical excipients that stabilize the solid oral preparation. The primary function of the medicine is to provide effective, temporary symptomatic management by targeting the underlying chemical processes responsible for discomfort. As an NSAID, Melfen operates by inhibiting the activity of the Cyclooxygenase (COX) enzyme pathway, thereby reducing the synthesis of prostaglandins, which are key mediators of pain and inflammation. This mechanism is utilized in settings such as temporary relief of general discomfort. Consequently, the medicine's overall benefit is concentrated on alleviating the interconnected symptoms of pain, inflammation, and fever.

Regulatory References

  1. like the U.S. National Library of Medicine
  2. pharmacological studies by the World Health Organization

What side effects are possible with Melfen?

Possible Side Effects and Safety Information

This section outlines the adverse reactions and safety characteristics associated with medications containing Ibuprofen (Melfen), as formally documented by government regulatory authorities.

Officially Documented Adverse Reactions

The most frequently reported adverse reactions are classified as common, often affecting the Gastrointestinal System. These commonly include disturbances such as dyspepsia, abdominal pain, nausea, and flatulence, along with headache. Uncommon reactions may involve gastrointestinal ulceration, hypersensitivity reactions, or insomnia. The official safety documentation groups these effects according to the affected body systems, including Gastrointestinal, Nervous System, Immune System, and Cardiovascular Disorders.

Serious Adverse Reactions and Safety Patterns

Regulatory warnings highlight the risk of serious adverse events that are generally considered rare. These include Gastrointestinal Toxicity, which encompasses ulceration, bleeding, and perforation, and an increased risk of serious Arterial Thrombotic Events, such as myocardial infarction (heart attack) or stroke.

Official safety statements explicitly note that the risk of these serious events is associated with the daily dose and the duration of treatment. The risk profile is also higher for certain populations, as regulatory documents note that older adults are at an increased risk for serious gastrointestinal bleeding and renal impairment. Consequently, the medicine is subject to safety constraints, including restrictions in individuals with severe, uncontrolled heart failure or pre-existing severe organ dysfunction.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Melfen (Ibuprofen) overdose describes a spectrum of clinical manifestations that typically appear within four hours of ingestion of a toxic amount. Documented symptoms include gastrointestinal distress (nausea, vomiting, abdominal pain, diarrhea) and central nervous system (CNS) effects such as headache, tinnitus, dizziness, lethargy, drowsiness, and reduced level of consciousness. Respiratory issues, including apnoea or exacerbation of asthma, are also officially noted in the regulatory documents.

Severe and life-threatening outcomes officially reported include cardiovascular toxicity (hypotension, tachycardia), acute renal failure, metabolic acidosis, coma, and convulsions. These severe manifestations define a critical overdose scenario and necessitate immediate response.

Management is strictly symptomatic and supportive, as official documents confirm no specific antidote is known for acute NSAID toxicity. Immediate medical attention must be sought for any suspected overdose or for the onset of serious signs, such as chest pain, sudden weakness, difficulty breathing, or slurred speech. If a potentially toxic amount is ingested, the regulatory guidance requires contact with emergency services, close monitoring of renal and liver function, and patient observation for at least four hours. Specific population-related notes highlight that overdose in children and infants can involve a higher risk for metabolic acidosis and transient renal failure.

Therapeutic Uses of Melfen

What Melfen Treats: Main Uses and Benefits

Melfen, containing Ibuprofen, is used across domains where short-term symptomatic assistance is needed. It is relevant in contexts marked by increased discomfort or tension, offering symptomatic relief that helps patients cope more steadily and assists with maintaining functional stability during periods of heightened symptoms.

This medication is applied in addressing symptoms related to physical discomfort and systemic imbalance, including headaches, toothache, backache, generalized muscular aches and pains, fever, and the symptoms of inflammation and arthritis. It is often used when symptoms intensify, such as following minor physical strains or during recurrent episodes like menstrual cramps (primary dysmenorrhea). Its use contributes to improved comfort during symptomatic periods.

“Melfen is commonly used across conditions characterized by periods of heightened symptoms.”


Quick Fact: Relief for Symptoms that Interfere with Function

Domain Key Symptoms Managed Patient Benefit (Safe)
Pain Relief Physical discomfort, headaches, toothache Helps ease the overall symptom burden
Inflammation Management Swelling, stiffness, tenderness Assists with maintaining functional stability
Fever Reduction Elevated body temperature (fever) Contributes to improved day-to-day comfort

Eligibility and Restrictions for Use

Official Eligibility and Contraindications

Melfen, containing Ibuprofen, is subject to strict population eligibility rules defined in official government regulatory documents. These rules establish who is permitted to use the medicine, who must be restricted, and who is absolutely contraindicated.


Absolute Contraindications

The medicine is strictly contraindicated for several populations who must not use it. This includes individuals with a known hypersensitivity to Ibuprofen or any other NSAID, or those with a history of asthma, hives, or allergic-type reactions triggered by aspirin or other NSAIDs. Use is also prohibited in patients with active gastrointestinal bleeding or peptic ulceration, and for treating pain following Coronary Artery Bypass Graft (CABG) surgery. Additionally, it must not be used by patients with severe heart failure, severe liver failure, or severe renal failure.

Age and Physiological Restrictions

Eligibility is generally established for adults and adolescents 12 years of age and older for standard oral forms, although specific pediatric formulations may be approved for children 6 months of age and older. Melfen is contraindicated for women in the third trimester of pregnancy (starting at 30 weeks gestation). Older adults are considered a high-risk population for gastrointestinal and cardiovascular events, necessitating use under the most cautious conditions.

What should I know about interactions with other medicines?

Melfen Interactions with other medicines and products

Melfen (Ibuprofen) has officially documented interactions that primarily relate to risks of bleeding and the alteration of co-administered medicine levels, as specified in regulatory prescribing information.


Documented Interaction Classifications

Classification Interacting Substances/Categories
Contraindicated Combinations Other NSAIDs, including COX-2 inhibitors; Other Ibuprofen-containing products
Increased Bleeding Risk Anticoagulants (e.g., Warfarin); Oral Corticosteroids; SSRIs; Anti-platelet agents
Exposure Modification Lithium and Methotrexate (increased plasma levels due to reduced renal clearance)
Efficacy Reduction Diuretics and ACE Inhibitors (reduced antihypertensive/natriuretic effects)

Official Constraints and Conditions

Aspirin Timing Rule: If taking low-dose Aspirin (non-enteric coated) for cardioprotection, Melfen must be administered at least 8 hours before or 30 minutes after the Aspirin dose to minimize interference with its antiplatelet effect.

Alcohol Risk: Regulatory labels state that chronic consumption of three or more alcoholic drinks per day increases the risk of stomach bleeding when Melfen is used.

Population Note: There is an officially recognized increased risk of adverse effects and interactions for elderly patients and those with impaired renal or hepatic function when taking co-medications with Melfen.

Mechanism of Action

How Melfen Works

Modulating Signaling Through Enzyme Inhibition

Melfen's mechanism of action centers on inhibiting the cyclooxygenase (COX) enzymes (COX-1 and COX-2), which are critical in the arachidonic acid cascade. By binding to these enzymes, the drug prevents the conversion of arachidonic acid into prostaglandins—local chemical mediators—thereby reducing the synthesis of pro-inflammatory mediators that modulate nerve sensitization and vascular dynamics. This action is relevant in systems characterized by an elevation of prostaglandin signaling and enzymatic activity.

Adjusting Central Thermoregulation

Melfen also engages a mechanism in the hypothalamus, the brain's temperature control center. Here, the drug's effect of reducing prostaglandin synthesis facilitates the resetting of the body's thermoregulatory set point. This promotes physiological processes, such as vasodilation, that increase heat loss and influence core temperature pathways.

Dosage and Administration Information

How to Use Melfen: Official Administration Guidelines

The principles governing the use of Melfen (Ibuprofen) establish the approved delivery methods, required dosing schedules, and duration constraints. The fundamental use principle requires the administration of the lowest effective dosage for the shortest duration necessary for its intended purpose.


Administration Scope

Entity Guideline
Route of administration Primarily Oral (tablets, capsules, suspension). An Intravenous (IV) injection form is approved for use in specific clinical settings.
Dosing schedule Acute Use (PRN): Typically 400 mg per dose. Chronic Use: Total daily dose ranges from 1200 mg to 3200 mg, which must be administered in divided doses.
Timing in relation to meals The medicine may be taken with food or milk if the patient experiences gastrointestinal discomfort.
Preparation requirements The Intravenous solution requires dilution prior to administration (e.g., 4 mg/ mL or less) and must be infused over a mandated duration (e.g., at least 30 minutes for adults).
Age-group administration rules Pediatric: Dosing is typically weight-based (mg/kg) for children over six months. Older Adults: Careful dose adjustment may be required due to age-related organ changes.
Missed-dose rules If a dose is missed, the user should take the next dose at the regularly scheduled time and not double the dose to compensate.

Procedural Structure

Official instructions differentiate between treatment types: Acute administration typically follows an as-needed (PRN) schedule with a minimum interval of four to six hours between doses, while chronic management necessitates a divided daily schedule (TID/QID). The duration is short-term for acute use, with chronic use requiring a review of the dose after a period of consistent administration (e.g., two weeks).

Recent Clinical Evidence

Melfen: Recent Clinical Evidence


Efficacy in Osteoarthritis (OA)

Research was evaluated for its influence on the symptoms of osteoarthritis (OA) of the knee. Studies also focused on potential changes in joint pain and stiffness. The evidence suggests further study is needed to confirm whether there are effects on these specific symptoms.

Safety Profile and Tolerability

The studies investigated the ingredient's use for up to 12 weeks; research is ongoing to determine its suitability for chronic pain management.

A review of the evidence indicates the most commonly reported findings related to tolerability included gastrointestinal events (e.g., nausea, mild indigestion).

One study reported that patients who had a history of using anticoagulant medication were excluded from the research.

Structural and Long-term Effects

Additional research explores whether the ingredient is associated with changes in swelling and joint-space narrowing, and its potential relationship to long-term joint function; however, the evidence remains limited for these structural effects.

In a meta-analysis, the ingredient's effects were compared to placebo and nonsteroidal anti-inflammatory drugs (NSAIDs) for pain management, with varied results across outcome measures.

Key Studies & References

  1. Use of ibuprofen sustained release for treating osteoarthritic pain: a prospective observational study
  2. Melfen 200mg Film-Coated Tablets: Summary of Product Characteristics (SPC) - Interactions, Safety and Patient Information
  3. Results - Analgesics for Osteoarthritis - Systematic Reviews on efficacy and harms of NSAIDs

Frequently Asked Questions (FAQ)

Common questions about Melfen (FAQ)


Q: Is Melfen considered an NSAID?

A: Yes. According to official product documentation, the active ingredient in Melfen, Ibuprofen, is classified as a Nonsteroidal Anti-inflammatory Drug (NSAID). This classification describes its mechanism of action, which involves reducing inflammation, pain, and fever.


Q: Is Melfen the same as ibuprofen or paracetamol?

A: Official product labeling identifies Melfen as containing the active ingredient Ibuprofen. The official product documentation states that Melfen contains Ibuprofen as its active ingredient. Paracetamol (also known as Acetaminophen) is a different medicine with a different mechanism of action.


Q: What is the difference between Melfen and Tylenol?

A: Melfen contains the active ingredient Ibuprofen, which is classified as an NSAID. Tylenol is a brand name for the medicine Acetaminophen (Paracetamol). These are different classes of medicines that work in different ways to relieve pain and reduce fever.


Q: Is Melfen available over-the-counter or is it prescription-only?

A: The active ingredient in Melfen, Ibuprofen, is available in both over-the-counter (OTC) strengths and prescription-only strengths. The required legal status depends on the specific dosage and formulation available.


Q: What is the main purpose of Melfen?

A: Official documents state that Melfen is indicated for the temporary relief of minor aches and pains and for temporarily reducing fever.


Q: How quickly does Melfen start working after taking it?

A: Pharmacokinetic data from official sources indicate that peak concentrations in the blood are generally reached about one to two hours after the product has been taken by mouth.


Q: How long do the effects of Melfen usually last?

A: Official data describes the medicine's elimination process, noting that the half-life is approximately two hours. Most of the medicine is typically eliminated from the body within 24 hours after the last dose.


Q: What are the most common side effects associated with Melfen?

A: According to official adverse event reports, among the most frequently reported adverse findings are gastrointestinal symptoms, such as mild nausea, indigestion, and general stomach upset.


Q: Can Melfen cause dizziness or drowsiness?

A: Yes, official adverse event lists include potential effects on the nervous system. These reports mention feelings such as dizziness and headache.


Q: Are there any signs of a serious allergic reaction to Melfen that I should know about?

A: Official warnings include an Allergy Alert that describes serious reactions. The warning describes signs of a serious allergic reaction, which may include effects like hives, facial swelling, asthma (wheezing), blistering of the skin, or shock.


Q: Can Melfen cause issues with the heart or blood pressure?

A: Regulatory warnings state that NSAIDs, including Melfen, may cause an increased risk of serious cardiovascular thrombotic events, which include heart attack and stroke. Additionally, official information notes that the medicine can lead to the onset or worsening of high blood pressure (hypertension).


Q: Is there a risk of stomach bleeding or ulcers when taking Melfen?

A: Yes, there is an official stomach bleeding warning associated with Melfen. The regulatory label states the risk of serious gastrointestinal events, including bleeding, ulceration, or perforation, may be higher with increasing doses or longer duration of use.


Q: Can Melfen cause fluid retention or swelling in the body?

A: Official warnings state that fluid retention and peripheral swelling (edema) have been reported in association with NSAID therapy. The possibility of this effect is one factor considered in the official guidelines for use.


Q: Is there a known link between Melfen and increased risk of heart attack or stroke?

A: Yes, regulatory information indicates that the use of NSAIDs, including Ibuprofen, may be associated with an increased risk of serious cardiovascular thrombotic events, such as myocardial infarction (heart attack) and stroke, which can be fatal. This risk may increase with duration of use.


Q: Can people with high blood pressure use Melfen?

A: Official guidelines recommend caution for individuals with pre-existing high blood pressure, as fluid retention and swelling have been observed with its use. In individuals with uncontrolled or severe high blood pressure, the medicine may be contraindicated.


Q: Is Melfen use restricted for people with kidney or liver problems?

A: Official guidelines indicate caution for individuals who have impaired renal (kidney) or hepatic (liver) function. The product is contraindicated (officially advised against) in cases of severe, established kidney or liver disease.


Q: Is Melfen safe for women who are pregnant or planning to become pregnant?

A: The official guidelines state that NSAIDs, including Melfen, are generally not recommended after 20 weeks of pregnancy due to potential risks to the developing fetus. The medicine is officially contraindicated in the third trimester (after 28 weeks) of pregnancy.


Q: Is Melfen safe to use while breastfeeding?

A: Studies indicate that the active ingredient, Ibuprofen, passes into breast milk in only small amounts. Official resources state that side effects are not expected in infants exposed through breast milk.


Q: Can children or infants use Melfen?

A: The active ingredient is approved for use in children over six months of age, with the dosage typically determined by the child’s weight. The active ingredient's use in infants younger than six months is outside the scope of general labeling and requires professional guidance.


Q: Is it better to take Melfen on an empty stomach or with a meal?

A: Official instructions state that the medicine may be taken with food or milk if stomach upset occurs. Taking it with food may help manage gastrointestinal discomfort, although it may slightly delay the time it takes to reach peak effect in the body.


Q: Does Melfen have an impact on fertility or the ability to become pregnant?

A: Official product information notes that the use of the active ingredient may impair female fertility and is generally not recommended in women who are actively attempting to conceive.


Q: Can Melfen mask the signs of an infection?

A: Yes, official warnings state that because Melfen has anti-inflammatory and fever-reducing properties, it may mask the symptoms of infection. This could potentially delay the diagnosis and initiation of appropriate treatment.


Q: Is Melfen safe to take if I have a history of stomach ulcers?

A: The medicine is contraindicated for individuals with a history of active or recurrent gastrointestinal bleeding, ulcers, or perforation. Use is advised against in these cases.


Q: Does Melfen contain sulfa or other common allergens?

A: The active ingredient, Ibuprofen, does not contain sulfa. Information regarding other specific allergens depends on the inactive ingredients (excipients) used in the specific formulation, which are fully listed on the product label.


Q: What should I do if my pain or fever does not improve after taking Melfen?

A: Official product labeling contains instructions stating that use should be stopped, and professional advice sought, if pain worsens or lasts more than 10 days, or if fever worsens or lasts more than 3 days.


Q: Can Melfen cause ringing in the ears (tinnitus)?

A: Yes, official adverse event reports list tinnitus (ringing or buzzing in the ears) as a possible adverse effect that has been reported.


Q: Does Melfen have different forms, such as liquid or topical gel?

A: Official product information indicates that the active ingredient is available in various forms, including oral tablets, capsules, liquid suspensions, and intravenous injections.


Q: Can Melfen be taken with alcohol?

A: Official warnings state that regular consumption of three or more alcoholic drinks per day significantly increases the risk of serious stomach bleeding when Melfen is used.


Q: What are the signs of taking too much Melfen?

A: Signs reported in overdose situations may include effects like nausea, vomiting, stomach pain, drowsiness, blurred vision, headache, and ringing in the ears (tinnitus). Severe effects can occur in high-dose ingestion.


Q: Is there a difference in side effects between prescription and over-the-counter Melfen?

A: Official regulatory warnings for gastrointestinal and cardiovascular risks are primarily related to the dose and duration of use, rather than whether the product is classified as OTC or prescription. Higher doses and longer duration are associated with higher risks.


Q: Can Melfen cause a severe skin reaction?

A: Yes, official warnings describe the potential for rare but serious adverse reactions known as Severe Cutaneous Adverse Reactions (SCARs), which include conditions like Stevens-Johnson syndrome (SJS) and Toxic Epidermal Necrolysis (TEN).


Q: Can Melfen be used for pain after a vaccination?

A: The medicine is officially indicated for the temporary relief of minor aches and pains and to temporarily reduce fever, which covers symptoms that may occasionally follow a vaccination.


Q: Are there certain medical conditions where Melfen is strictly forbidden?

A: The medicine is contraindicated for individuals with certain severe conditions, such as severe heart failure, active or recurrent peptic ulcer/bleeding, third trimester of pregnancy, or a known allergy to NSAIDs or Aspirin.


Q: Is Melfen used for chronic (long-term) pain or only acute (short-term) pain?

A: The official product documentation provides dosing information for both acute pain relief (short-term) and for the management of symptoms associated with chronic conditions (such as certain types of arthritis). Different dosing schedules apply to each type of use.


Q: Can Melfen affect the nervous system or cause mood changes?

A: Adverse event listings include reports of effects on the central nervous system, such as headache, dizziness, and nervousness. Mood changes are not typically listed among the most common adverse effects but are possible in rare cases.


Q: Does the risk of side effects increase with age when taking Melfen?

A: Regulatory information specifically notes that the elderly are more prone to adverse events and have an increased risk of severe effects, particularly serious ones like gastrointestinal bleeding and perforation.


Q: Is stomach upset or indigestion a common side effect of Melfen?

A: Yes, official adverse event listings indicate that gastrointestinal symptoms such as nausea, indigestion, and stomach upset are among the most common adverse effects reported in clinical use.


Q: Are there any specific warnings for people with inflammatory bowel conditions like Crohn's disease?

A: Official warnings state that caution is advised for individuals with a history of gastrointestinal diseases, which includes Crohn’s disease and ulcerative colitis. These conditions may be exacerbated by the use of NSAIDs.

How should Melfen be stored and disposed of?

How to Store and Dispose of Melfen?

Official Storage Requirements

Melfen (ibuprofen tablets) must be stored at Controlled Room Temperature, defined by regulators as between 20 mathrmC to 25 mathrmC (68 mathrmF to 77 mathrmF). It is mandatory to avoid excessive heat above 40 mathrmC. To maintain product integrity, the medicine must be preserved in well-closed containers and kept out of the sight and reach of children.

Disposal Instructions

Disposal of any unused or expired Melfen must be conducted in accordance with local requirements for pharmaceutical waste. The preferred method is often a drug take-back program. Regulatory guidelines in some regions state that the product should not be disposed of via wastewater or routine household waste.

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

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