Brufen (ibuprofen)

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Medically reviewed

Laura Arias

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 Brufen (ibuprofen)

What is Brufen (ibuprofen)?

Brufen is a medicinal product containing the active substance ibuprofen. It belongs to a group of medications known as non-steroidal anti-inflammatory drugs (NSAIDs). These substances are primarily used for their ability to manage pain, reduce inflammation, and lower fever.

Mechanism of Action

Ibuprofen works by inhibiting the activity of enzymes known as cyclooxygenases (COX-1 and COX-2). These enzymes are responsible for the synthesis of prostaglandins, which are lipid compounds produced at sites of tissue damage or infection. Prostaglandins play a central role in signaling pain to the brain and triggering the inflammatory response, including swelling and redness. By reducing the production of these compounds, ibuprofen helps to alleviate the physical sensations of pain and the physiological signs of inflammation.

Therapeutic Use

In clinical practice, Brufen is utilized across a variety of conditions where pain or inflammation are present. It is commonly used for:

  • Musculoskeletal conditions: This includes various forms of arthritis, such as rheumatoid arthritis and osteoarthritis, as well as soft tissue injuries like sprains and strains.
  • Acute pain management: It is frequently used for the relief of mild to moderate pain, such as headaches, dental pain, and menstrual cramps.
  • Febrile states: It is effective in reducing elevated body temperature during illnesses.

Product Characteristics

As a versatile analgesic and anti-inflammatory agent, ibuprofen is available in several formulations to suit different patient needs. While Brufen is a widely recognized brand name, the pharmacological profile remains consistent with its classification as a non-selective NSAID. It is absorbed into the bloodstream after administration, with its effects typically becoming noticeable within a short period as it reaches therapeutic concentrations in the plasma and tissues.

Regulatory References

  1. National Library of Medicine
  2. [NIH Review]
  3. [EMA Listing]

What side effects are possible with Brufen (ibuprofen)?

Ibuprofen, a Non-Steroidal Anti-Inflammatory Drug (NSAID), may cause side effects, which are typically mild and often relate to the digestive system. However, more serious risks are associated with its use, particularly at high doses or with long-term therapy.

Common Side Effects

These effects are generally mild and may be lessened by taking the medication with food or milk:

  • Gastrointestinal issues: heartburn, nausea, vomiting, indigestion, abdominal pain, diarrhea, constipation, or gas.
  • Nervous system: headache, dizziness.
  • Other: ringing in the ears (tinnitus).

Serious Warnings and Risks

Ibuprofen carries warnings regarding an increased risk of serious cardiovascular and gastrointestinal events. You should stop use and seek immediate medical attention if you experience symptoms like chest pain, sudden weakness, shortness of breath, slurred speech, or signs of gastrointestinal bleeding (e.g., bloody or black, tarry stools, or vomit that looks like coffee grounds).

Cardiovascular Risk: Ibuprofen can increase the risk of heart attack, stroke, and new or worsening high blood pressure (hypertension). This risk may occur early in treatment and may be greater with higher doses or prolonged use. It should not be used before or immediately after a coronary artery bypass graft (CABG) surgery.

Gastrointestinal Risk: Ibuprofen can cause serious, sometimes fatal, gastrointestinal adverse events, including bleeding, ulceration, and perforation of the stomach or intestines. This risk is higher in the elderly and in those with a history of ulcers or GI bleeding.

Other Risks: Rare but serious reactions include severe skin reactions, liver damage, and kidney problems (including fluid retention and kidney failure). An allergic reaction, which may present as hives, difficulty breathing, or swelling of the face, requires emergency care. Consult a healthcare professional before use if you have a history of asthma, heart failure, kidney or liver disease, or if you are pregnant (especially after 20 weeks) or taking other medications, including low-dose aspirin for heart protection.

Overdose and Emergency Response

Overdose and when to seek help

The following information is derived strictly from official government regulatory documents detailing the documented overdose profile for ibuprofen. Any suspected overdose requires immediate action as officially mandated.


Overdose Scope

Property Official Regulatory Statement/Entity
Documented overdose presentations: Nausea, Vomiting, Drowsiness, Headache, Dizziness, Confusion, and Tinnitus (Ringing in the ears).
Physiological systems affected: Central Nervous System (CNS), Gastrointestinal (GI) System, Renal System, and Cardiovascular System.
Population-specific overdose notes: Elderly patients are at greater risk for serious Gastrointestinal events and fatal outcomes in overdose situations.
When immediate medical help is required: Seek immediate medical attention by contacting a local emergency number or a Poison Control Center right away. Urgent help is required for signs of Seizures (Convulsions), Apnoea (difficult/slow breathing), Hypotension, Chest pain, Slurred speech, or sudden weakness.

Overdose Classifications (High-Level)

Property Official Regulatory Statement/Entity
Severity classification: Manifestations range from mild symptoms to severe or life-threatening outcomes, including documented Coma, Metabolic acidosis, and Acute Renal Failure.
Overdose-context constraints: No specific antidote is known for ibuprofen overdose; management is strictly based on symptomatic and supportive treatment.

Resulting Overdose Structure

Official overdose statements:

  • Overdose manifestations progress from common GI and CNS effects to severe outcomes like seizures and hypotension.
  • Immediate medical help is mandated for any suspected overdose to mitigate the risk of serious complications.
  • Management procedures officially include the use of Activated charcoal and continuous monitoring of vital signs.

Connection to the overall overdose profile:

Regulatory documents define the overdose profile by explicitly linking severe documented clinical events to the mandatory requirement to seek immediate medical attention. Since no specific antidote is known, the official guidance directs all emergency response toward procedural and symptomatic and supportive treatment under continuous medical observation.

Therapeutic Uses of Brufen (ibuprofen)

Quick Facts

  • Relief of Discomfort: Supports the relief of minor aches and pains.
  • Fever Management: Helps in the reduction of elevated body temperature.
  • Inflammatory Support: May help in managing signs of inflammation associated with conditions like arthritis.

Brufen, containing ibuprofen, is authorized to support the temporary relief of various types of discomfort. This medication is used to address minor aches and pains that may be associated with common ailments such as headaches, backache, toothache, and muscular aches. It is also indicated for managing the discomfort of menstrual cramps.

Brufen's therapeutic domain includes the management of fever, helping to reduce elevated body temperature in adults and children. For chronic conditions, it is used to support the relief of signs and symptoms of certain types of arthritis, including rheumatoid arthritis and osteoarthritis. In this context, it may help to moderate inflammation, stiffness, and joint discomfort, supporting improved function.

Individuals should use the lowest effective dosage for the shortest duration necessary to achieve treatment goals, as directed by a healthcare professional.

Eligibility and Restrictions for Use

Official Eligibility Profile: Brufen (Ibuprofen)

Official regulatory documents define strict population eligibility for using ibuprofen. Use is contraindicated (prohibited) for patients with a known hypersensitivity to ibuprofen, aspirin, or other Nonsteroidal Anti-Inflammatory Drugs (NSAIDs). It is also strictly forbidden for those with severe heart, renal, or hepatic failure, as well as patients with active or a history of recurrent peptic ulcer/haemorrhage.


Age Group or Condition Eligibility Status (Regulatory Wording)
Late Pregnancy (Third Trimester) Contraindicated
Early Pregnancy / Lactation Conditional Use (Strict benefit-risk consideration)
Children Contraindicated below certain age/weight thresholds (e.g., under 6 years or 20 kg for some forms)
Older Adults Conditional Use (Increased risk of adverse effects; lowest dose/shortest duration required)
Uncontrolled Hypertension Conditional Use (Caution required)

Eligibility is restricted and requires caution for those with mild to moderate organ impairment, a history of gastrointestinal diseases like Ulcerative Colitis, and cardiovascular conditions. These criteria, mandated by regulatory bodies like the FDA and EMA, explicitly structure the constraints on who may safely use this medicine.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Ibuprofen's official interaction profile is defined by regulatory documentation focusing on changes to drug exposure, increased risk profiles, and mandatory administration constraints. Co-administration with other NSAIDs (including Cox-2 inhibitors) is formally contraindicated due to a documented increase in the risk of gastrointestinal ulceration and bleeding. High-dose Aspirin (exceeding 75 mg daily) is also restricted.

The profile highlights several exposure-modifying interactions based on pharmacokinetic principles. Ibuprofen may decrease the renal clearance of substances like Lithium and Methotrexate, potentially resulting in an increase in their systemic plasma concentrations. Furthermore, a pharmacodynamic interaction is noted where Ibuprofen can diminish the antihypertensive or diuretic effect of co-administered medicines such as ACE Inhibitors, ARBs, and Diuretics.

For certain drugs, administration timing is strictly constrained. Taking Ibuprofen with low-dose, immediate-release Aspirin requires separation by at least 30 minutes after or 8 hours before Ibuprofen (400 mg) administration to prevent competitive inhibition that could reduce Aspirin’s anti-platelet effect. Pharmacodynamic interactions significantly elevate bleeding risk; this includes co-administration with Anticoagulants (e.g., Warfarin), Oral Corticosteroids, and SSRIs. Additionally, official regulatory documentation notes that alcohol consumption significantly increases the risk of stomach bleeding. Caution is also noted for elderly patients, where co-medication is associated with an amplified risk of adverse effects, particularly renal and gastrointestinal complications, compared to younger adults.

Mechanism of Action

Enzyme-Mediated Pathway Modulation

Ibuprofen acts primarily by non-selectively inhibiting the cyclooxygenase (COX) enzymes, specifically both COX-1 and COX-2 isoforms. This interaction is a core early molecular step in the arachidonic acid cascade, leading to a modification of subsequent signaling sequences.


Prostanoid Synthesis Suppression

By blocking the catalytic site of the COX enzymes, the compound prevents the conversion of arachidonic acid into prostanoids, which include prostaglandins and thromboxanes. Prostaglandins are local chemical mediators that modulate localized physiological responses; their reduced synthesis consequently alters targeted pathway activity.


Modulation of Physiological Signal Transduction

The suppression of prostanoid synthesis reduces the concentration and activity of these signaling molecules in the local cellular environment. This change in mediator concentration influences physiological response pathways, including those governing afferent signal transduction in peripheral tissues and cellular activity within central thermoregulatory mechanisms.

Dosage and Administration Information

How to Use Brufen (ibuprofen)

The use of ibuprofen is based on the principle of utilizing the lowest effective dose for the shortest duration. The medication is authorized for Oral administration (tablets, capsules, suspension), for localized use via the Topical route (gel/cream), and for systemic use in a clinical setting via Intravenous (IV) infusion.

Dosing and Frequency Patterns

Standard adult regimens vary by form and context. Oral doses are typically administered every 4 to 6 hours as needed for acute symptoms, with a required minimum interval between doses. For chronic conditions, such as arthritis, the total daily dose is typically administered in three or four equal divided doses. The maximum daily dose for prescription systemic use is generally limited to 3,200 mg, while over-the-counter use is limited to 1,200 mg.

Administration Requirements

Oral solid forms, such as tablets, must be swallowed whole with water and should not be crushed or chewed. The medication may be taken with food or milk to help minimize potential gastrointestinal discomfort, though it may also be taken on an empty stomach. For pediatric patients, dosing is based on body weight (mg/kg) using formulations like oral suspension. Intravenous administration is reserved for a clinical setting, requires dilution, and must be infused slowly over a minimum period, such as at least 30 minutes for adults.

Recent Clinical Evidence

Research evidence / Overview of Studies for Brufen (ibuprofen)


Evidence for Use in Acute Pain and Fever

Research has examined the question of how symptoms change over time when Brufen (ibuprofen) was studied in trials relevant in trials assessing short-term or episodic symptom patterns, such as temporary pain and fever. These trials most often include randomized controlled trial designs to compare how outcomes were measured against a placebo or other active agents. Researchers monitored outcomes related to physical discomfort in the study populations, which included individuals experiencing episodic or acute changes. Brufen (ibuprofen) was observed in research focusing on temporary physiological imbalance related to high temperatures, where studies also evaluated outcomes related to systemic or functional imbalance.

Findings describe patterns observed in these short-term studies, where research reports changes measured during the study period for outcomes related to physical discomfort. These research findings reflect the specific conditions under which they were conducted and contribute to the broader evidence landscape related to temporary physiological imbalance.

Evidence for Use in Chronic Inflammatory and Rheumatic Conditions

Brufen (ibuprofen) was also studied for conditions presenting with cycles of stability and flare-ups, such as osteoarthritis and rheumatoid arthritis. Studies explored how symptoms evolved in populations dealing with conditions where symptoms may vary in intensity, using designs ranging from short-term to intermediate-term trials. These research contexts involved measuring patient-reported outcomes describing perceived discomfort and outcomes reflecting daily functioning or activity level.

The collected data show patterns related to measured changes in daily functioning and in outcomes linked to inflammatory or irritative states during the study period. Findings help contextualize how patients reported their experience in studies conducted during periods of increased symptom activity.

What Is Still Uncertain About Brufen (ibuprofen)

This research section highlights what is known—and what is still uncertain—about Brufen (ibuprofen). Several limitations exist in the current body of evidence: long-term effects are not fully established, sample sizes were modest in some trials, and follow-up durations were limited. Findings were mixed in some instances, and subgroup findings are uncertain, meaning the results apply only to the populations studied. The overall data are still emerging, and this research provides context but not individual predictions regarding patient outcomes.

Key Studies & References

  1. Efficacy and safety of ibuprofen and acetaminophen in children and adults: a meta-analysis and qualitative review - NCBI
  2. Ibuprofen - StatPearls - NCBI Bookshelf - NIH (Covers chronic inflammatory disorders and general regulatory context)
  3. NSAIDs for Chronic Pain: Risks of Long-Term Use (Discusses long-term risks and limitations in duration)
  4. Basic Product Monograph Information for Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) (Covers special populations and contraindications which frame evidence limitations)

Frequently Asked Questions (FAQ)

Common questions about Brufen (ibuprofen) (FAQ)

Q: How quickly does Brufen usually start to work?

A: Official product information, based on studies of how the medicine moves through the body, generally indicates that peak concentrations in the bloodstream are typically reached within one to two hours after taking an oral dose. If the medicine is taken on an empty stomach, these peak concentrations may be reached slightly sooner, in approximately 45 minutes.

Q: Is it better to take Brufen in the morning or at night?

A: Regulatory instructions for taking this medicine define the minimum time interval required between doses, which is often four to eight hours, rather than focusing on a specific time of day. For long-term conditions, official guidance generally describes taking the total daily quantity divided into multiple doses throughout the day.

Q: What happens if I accidentally take more Brufen than intended?

A: Taking more than the specified amount can cause symptoms in various body systems, including stomach pain, nausea, vomiting, confusion, and changes in breathing. Official sources contain a mandatory warning that suspected over-ingestion requires assessment by a healthcare professional.

Q: Does Brufen affect blood pressure?

A: Official warnings note that ibuprofen is associated with a risk of new-onset high blood pressure (hypertension) or making existing high blood pressure worse. Regulatory documents state that patients may require close monitoring of blood pressure during the course of therapy.

Q: Can taking Brufen cause drowsiness or affect alertness?

A: Although it is not one of the most common adverse effects, official documents related to the nervous system often list dizziness and headache. For certain forms, like those combined with other ingredients, regulatory information explicitly warns that drowsiness may occur, which may affect the ability to drive or operate machinery.

Q: Is Brufen an addictive medicine?

A: Ibuprofen is classified as a Nonsteroidal Anti-Inflammatory Drug (NSAID) and is an analgesic that acts primarily outside of the central nervous system. Official regulatory and medical literature indicates that it does not act on the same receptors as opioid medicines and is not associated with the risk of physical dependence or addiction.

Q: Are there different strengths of Brufen available?

A: Yes, official product information shows that the medicine is prepared in various strengths for oral use. For example, prescription tablets are typically available in multiple dose strengths.

Q: What is the difference between Brufen and paracetamol (acetaminophen)?

A: Brufen (ibuprofen) is classified as an NSAID and works by blocking specific enzymes (COX enzymes) to reduce pain, fever, and inflammation. In contrast, paracetamol (acetaminophen) is believed to work mainly in the brain and spinal cord, and it does not have anti-inflammatory actions.

Q: Can Brufen cause sensitivity to sunlight?

A: Official adverse reaction reports include rare instances of photoallergic skin reactions, meaning a possible increased sensitivity to light. Any unusual skin changes observed are typically assessed by a healthcare professional.

Q: Are there any specific groups of people for whom Brufen is strictly not recommended?

A: Yes, official regulatory documents state that ibuprofen is contraindicated (strictly not recommended) for patients with a severe allergy to NSAIDs, active stomach ulcers or bleeding, severe heart failure, or immediately before or after heart bypass surgery. Use is also restricted during the third trimester of pregnancy.

Q: Can Brufen be taken at the same time as cold and flu medicine?

A: Official warnings caution against taking ibuprofen if you are already using other products that contain prescription or non-prescription NSAIDs. Because many cold and flu medicines contain other pain relievers, including NSAIDs, co-administration may increase the risk of adverse events and is restricted.

Q: How does Brufen compare to naproxen in terms of action?

A: Both ibuprofen and naproxen are NSAIDs that work through the same mechanism: inhibiting COX enzymes to decrease pain and inflammation-causing substances. Official sources note that naproxen generally has a longer half-life (the time the drug stays active in the body), which usually allows for less frequent dosing intervals compared to ibuprofen.

Q: Does using Brufen for period pain affect the menstrual cycle?

A: Ibuprofen is officially indicated to help manage the pain and often the heavy bleeding associated with the menstrual period, which is related to its effect on prostaglandins (chemical mediators of cramping and bleeding). Official sources do not describe it as impacting the underlying rhythm or timing of the menstrual cycle itself.

Q: How does the onset time of Brufen compare between liquid and solid forms?

A: While the active ingredient is the same across all forms, official pharmacokinetic data indicates that the time to reach peak concentrations in the blood can vary with the dosage form. Liquid forms may sometimes lead to the active component being available in the bloodstream sooner than solid forms like standard tablets.

Q: Is there a risk of rebound headaches if Brufen is taken frequently for migraines?

A: Official medical literature indicates that taking simple pain relievers, including ibuprofen, more than 15 days per month over a period of three months or more is associated with a risk of medication overuse headaches (also known as 'rebound headaches') for people who already experience frequent headaches.

How should Brufen (ibuprofen) be stored and disposed of?

How to Store and Dispose of Brufen (Ibuprofen)

Ibuprofen must be stored at controlled room temperature, typically between 20 C and 25 C (68 F and 77 F). The product must be protected from excessive heat, moisture, and freezing, especially for liquid formulations. All forms must be kept in the original, tightly closed container and stored out of the sight and reach of children as a mandatory safety requirement.

Storage Constraint Requirement
Temperature Range 20 C to 25 C (controlled room temperature)
Environmental Protection Protect from excessive heat and moisture; do not freeze liquid forms.
Child Safety Keep out of the sight and reach of children.

Disposal of unused or expired medicine should be handled through an official medicine take-back program. If a take-back option is unavailable, the product may be mixed with an undesirable substance, placed in a sealed bag, and discarded with household trash, following regulatory guidance to prevent accidental consumption.

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

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