Fidiprofen

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Medically reviewed

Marina Burgos

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 Fidiprofen

What is Fidiprofen?

Fidiprofen is a therapeutic agent belonging to the class of medications known as non-steroidal anti-inflammatory drugs (NSAIDs). It is formulated to assist in the management of symptoms associated with various inflammatory conditions and pain-related disorders.

Mechanism of Action

The primary function of Fidiprofen involves the inhibition of cyclooxygenase enzymes, specifically COX-1 and COX-2. These enzymes are responsible for the synthesis of prostaglandins, which are lipid compounds in the body that act as mediators for inflammation, fever, and pain signals. By reducing the production of these prostaglandins, Fidiprofen helps to decrease swelling and alleviate discomfort.

Clinical Applications

Fidiprofen is typically utilized in clinical settings to address several types of physical ailments, including:

  • Inflammatory Joint Diseases: Management of symptoms related to rheumatoid arthritis and osteoarthritis.
  • Musculoskeletal Pain: Relief from acute injuries, strains, or chronic back pain.
  • General Analgesia: Treatment of mild to moderate pain from various origins, such as dental procedures or primary dysmenorrhea.

As a systemic treatment, Fidiprofen is absorbed into the bloodstream to provide widespread relief, though its application is focused on symptomatic control rather than curing the underlying cause of the inflammation.

Regulatory References

  1. Ibuprofen - StatPearls - NCBI Bookshelf

What side effects are possible with Fidiprofen?

Possible side effects and safety information

Fidiprofen (Ibuprofen) safety information is formally structured by government regulatory agencies (e.g., EMA, FDA) to classify and communicate the medicine's documented adverse reactions. These effects are grouped by their estimated frequency and the physiological system affected.

Adverse reactions are classified into categories reflecting how often they may occur, ranging from Common (e.g., digestive discomfort, nausea, vomiting) to Uncommon (e.g., headache, specific hypersensitivity reactions, peptic ulceration) and Very Rare (e.g., severe acute allergic reactions, certain severe skin disorders).

Key safety information mandates explicit warnings regarding serious adverse reactions that can occur at any time during treatment. These serious risks, documented in official prescribing information, primarily involve the Gastrointestinal System, including the potential for bleeding, ulceration, and perforation of the stomach or intestines. Serious risks also involve the Cardiovascular System, encompassing the potential for thrombotic events, such as myocardial infarction and stroke.

Classification Examples of Officially Documented Adverse Reactions
Common Dyspepsia, abdominal pain, diarrhea, flatulence.
Uncommon Headache, skin rash, dizziness, gastrointestinal haemorrhage.
Serious Risks Gastrointestinal bleeding, myocardial infarction, severe skin reactions.

Safety notes also address specific populations. The official labels state that older adults have an increased risk of adverse reactions, particularly fatal gastrointestinal bleeding, and caution is noted for the risk of renal impairment in dehydrated children and adolescents. The risk of cardiovascular thrombotic events is officially noted to increase with the duration of use and higher doses.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdose of Fidiprofen (Ibuprofen) may present with a spectrum of officially documented clinical manifestations. These typically involve the gastrointestinal system, including nausea, vomiting, stomach pain, and diarrhea. Central nervous system effects are also reported, such as drowsiness, severe headache, confusion, dizziness, and unsteadiness. Other signs documented in regulatory sources include tinnitus (ringing in the ears) and blurred vision.

Severe and life-threatening outcomes are officially documented, particularly following massive overdosage. These outcomes can include acute renal failure, metabolic acidosis, seizures, and cardiovascular collapse (shock). Individuals aged 60 or older and those with pre-existing kidney or heart conditions may face an increased risk of severe toxicity.

Immediate Emergency Action Required

In all cases of suspected overdose, immediate medical attention is mandatory. Individuals must get medical help or contact a Poison Control Center right away, or call local emergency services. Urgent care must be sought if any signs of serious complications, such as bloody or black stools, seizures, severe difficulty breathing, or symptoms of shock are observed.

Regulatory documents state that no specific antidote is known for Ibuprofen overdose. Management is primarily supportive and procedural, which may include the administration of activated charcoal to reduce absorption or gastric lavage if the overdose was recent. Hospital monitoring of vital signs and renal function is required to manage any potential systemic effects.

Therapeutic Uses of Fidiprofen

Fidiprofen is applied across domains where additional symptomatic support is needed and is relevant for easing distress. It is generally applicable in situations requiring short-term stabilization when symptoms cluster into patterns that interfere with daily stability.

The medication is considered relevant for managing symptoms related to physical discomfort and systemic imbalance, including fever, headache, dental pain, and the swelling and stiffness associated with rheumatoid arthritis or osteoarthritis. It is commonly used when short-term symptomatic assistance is needed for acute episodes of cold and flu, as well as for managing recurrent discomfort, such as menstrual cramps.

“Fidiprofen assists with maintaining functional stability by helping to ease the overall symptom burden related to aches and systemic discomfort.”

Applied in contexts involving heightened symptom intensity, this medication offers symptomatic relief that helps ease the overall symptom load, supporting patients during symptomatic phases.


Quick Fact: Relevant for Symptomatic Support of Pain, Fever, and Inflammation

Fidiprofen is a supportive treatment that may assist with improving day-to-day comfort during symptomatic periods by targeting mild to moderate pain, elevated temperature, and localized inflammatory processes.

Regulatory References

  1. NIH MedlinePlus Drug Information overview

Eligibility and Restrictions for Use

Who Can and Cannot Use Fidiprofen?

Regulatory documentation defines eligibility for Fidiprofen (Ibuprofen) based on age, pre-existing health status, and physiological state.

Fidiprofen is contraindicated for several populations, meaning it must not be used by these individuals. This includes patients with known hypersensitivity to any Non-Steroidal Anti-Inflammatory Drug (NSAID) or aspirin, those with a history of recurrent peptic ulcer or gastrointestinal hemorrhage, and patients with severe hepatic, severe renal, or severe heart failure (NYHA Class IV). The medicine is also contraindicated for treating pain related to Coronary Artery Bypass Graft (CABG) surgery and for women in the last trimester of pregnancy.

Population Group Regulatory Status
Infants under 6 months Safety and efficacy not established
Elderly patients (ge 65) Use with caution; requires the lowest effective dose
Mild/Moderate Organ Impairment Use with caution; dose must be minimized
Pregnant women (ge 20 weeks) Use not recommended

Generally, use is considered allowed for adults, adolescents, and children over 6 months of age, provided none of the contraindications are present. Women who are breastfeeding are considered eligible as the substance appears in very low concentrations in breast milk.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Category Official Regulatory Information
Medicinal product categories Other NSAIDs, Anticoagulants, Antiplatelet agents, SSRIs, Oral Corticosteroids, Cardiac Glycosides, Antihypertensive Agents, Lithium, Methotrexate.
Mechanistic basis of interactions Pharmacokinetic interaction (reduced renal clearance resulting in increased plasma concentration of co-administered drug); Pharmacodynamic interaction (additive risk of bleeding/GI toxicity; antagonism of antiplatelet or antihypertensive effects).
Timing-based interaction rules Low-dose Aspirin (for cardioprotection): Mandatory administration of Fidiprofen at least 8 hours before or 30 minutes after the dose of non-enteric coated aspirin.
Population-specific interaction notes Elderly: Increased frequency of adverse reactions, especially gastrointestinal bleeding and perforation, representing a population-dependent increase in interaction severity.
Interaction-related restrictions Contraindicated combination with other NSAIDs (including COX-2 inhibitors); Prohibited co-administration with high-dose Aspirin (above 75 mg daily); Contraindicated for peri-operative pain management in the setting of Coronary Artery Bypass Graft (CABG) surgery.

Official Interaction Statements

  • Co-administration with other NSAIDs is formally contraindicated due to additive risk of serious gastrointestinal adverse events.
  • Fidiprofen exhibits a pharmacokinetic interaction by reducing the renal clearance of both Lithium and Methotrexate, resulting in an officially documented increase in plasma concentration and risk of toxicity for those co-administered agents.
  • Pharmacodynamic interactions are documented with anticoagulants, antiplatelets, and SSRIs, leading to a synergistic and increased risk of gastrointestinal bleeding.
  • Consumption of alcohol while taking the product is documented to increase the risk of stomach bleeding.

Connection to the overall interaction profile

Regulatory documents define the product's interaction structure primarily through two domains: pharmacodynamic reinforcement leading to additive toxicity and pharmacokinetic inhibition resulting in reduced clearance of specific co-administered agents. This profile establishes specific restrictions, including contraindicated combinations and mandatory timing rules, based on the formal assessment of these documented interaction patterns.

Mechanism of Action

Primary Mechanism: Inhibition of Cyclooxygenase (COX) Enzymes

Fidiprofen's active component initiates its action by acting as a non-selective, reversible inhibitor of both the COX-1 and COX-2 enzymes. This molecular interaction blocks the conversion of arachidonic acid into prostanoids, fundamentally interrupting the body's primary synthesis pathway for key mediators such as Prostaglandin E2 ( PGE2).


Cascade: Modulation of Prostaglandin-Driven Signaling

The resulting scarcity of PGE2 modulates the physiological responses that include temperature elevation and increased nerve sensitivity. This occurs centrally, allowing for the resetting of the hypothalamic temperature set-point; and peripherally, by limiting the sensitization of nociceptors (pain-sensing nerve endings). This targeted adjustment in chemical signaling influences the pathways that mediate temperature elevation and nerve signal transmission.


Physiological Effect: Constraint on Tissue Fluid Dynamics

By constraining the production of prostaglandins, the mechanism modulates localized vascular dynamics and fluid accumulation. This mechanism influences the concentration of mediators that drive localized inflammatory signaling and fluid leakage.

Dosage and Administration Information

How to Use Fidiprofen: Administration Guidelines

Fidiprofen is administered based on the principle of using the lowest effective dose for the shortest duration necessary. The medicine is primarily used via the oral route, available in forms such as tablets, capsules, and suspensions. In specific hospital settings, it may be administered as a solution for intravenous (IV) infusion when oral intake is not feasible.

Dosing and Administration Structure

For oral use, the dosage typically ranges from 200 mg to 400 mg per dose for acute symptomatic relief, with doses taken at fixed intervals of every 4 to 6 hours. For chronic inflammatory conditions, the total daily dose is often higher, administered in three or four divided doses. The maximum recommended daily dose for over-the-counter use is 1200 mg/day, while prescription limits may extend up to 3200 mg/day.

Administration Detail Instruction Summary
Oral Intake May be taken with food or milk to aid administration.
Pediatric Dosing Calculated based on the patient's weight (mg/kg), up to a defined maximum daily amount.
Suspension Preparation Requires the bottle to be shaken well before measuring the dose with a proper device.
IV Administration Must be given as a slow infusion over 15 to 30 minutes by a qualified professional.

Treatment duration for acute pain and fever is often limited to no more than 10 days unless continuation is professionally guided. If a dose is missed, it is generally recommended to take the next dose at the regularly scheduled time, rather than taking an extra amount.

Recent Clinical Evidence

Research evidence / Overview of studies for Fidiprofen (Ibuprofen)


Research Evidence for Symptomatic Relief of Acute Pain

The evidence base for Fidiprofen's use in acute conditions studied, such as headache, dental pain, and menstrual cramps, includes numerous short-term Randomized Controlled Trials (RCTs) and subsequent Systematic Reviews and Meta-analyses. These studies were used in research exploring how symptoms change over time, often comparing the medicine to a placebo or another treatment. Researchers examined outcomes related to physical discomfort, monitoring changes in reported pain intensity scores over defined time intervals.

The findings describe patterns observed in the studies where measurable differences in reported pain intensity were noted compared to initial measurements. This research contributes to the broader evidence landscape regarding how pain was studied for in these acute settings. However, the existing evidence focuses almost exclusively on short-term symptom changes over the course of hours or a few days. The follow-up durations were limited, meaning that the long-term effects are not fully established for managing recurrent, non-chronic pain patterns.


Research Evidence for Managing Elevated Temperature (Fever)

For managing elevated temperature, the evidence base was evaluated in numerous controlled clinical studies that primarily examined outcomes related to systemic or functional imbalance. The research design involved studies conducted during periods of increased symptom activity (fever) and measured key endpoints such as the degree of body temperature reduction. The evidence for this research is categorized as High in the scientific literature regarding the change in temperature measured over the short term.


Research Evidence for Chronic Inflammation and Stiffness

Research concerning chronic inflammatory conditions studied, such as the pain and stiffness associated with osteoarthritis and rheumatoid arthritis, involves both RCTs and long-running observational studies. Trials reported that data show patterns related to functional status scores and patterns of measured change in joint stiffness and swelling. Regulatory reviews of chronic use described that research is ongoing and findings suggest a need to carefully evaluate risks associated with high-dose and prolonged administration in certain patterns.


Evidence in Specific Populations

Specific research has been evaluated in various age groups. A large proportion of research was studied for the Pediatric population, focused heavily on the use of the medicine for managing fever and pain. Trials also involved the Older Adult population, particularly within studies that examined chronic pain conditions. These findings describe group patterns and results apply only to the populations studied. The research provides context but does not describe individual outcomes based on group findings.


Key Studies & References Ibuprofen: MedlinePlus Drug Information

Frequently Asked Questions (FAQ)

Common questions about Fidiprofen (FAQ)

Q: What is Fidiprofen used for?

A: Fidiprofen is a medication indicated for the management of mild to moderate pain and the reduction of fever, as specified by its regulatory approval.


Q: How does Fidiprofen function in the body?

A: Research suggests that Fidiprofen acts by temporarily reducing the production of certain biochemical mediators that are involved in the body's inflammatory and pain signaling pathways.


Q: What is the typical length of treatment with Fidiprofen?

A: The duration of treatment is typically determined by a healthcare provider based on the condition being addressed and its severity. It is not intended for long-term use without medical supervision.


Q: What are the most common reported side effects?

A: Clinical trials have frequently reported adverse events such as mild gastrointestinal discomfort, headache, and dizziness. Patients experiencing persistent or severe effects should consult a healthcare professional.

How should Fidiprofen be stored and disposed of?

How to Store and Dispose of Fidiprofen?

Regulatory documents mandate specific conditions to maintain the stability of Fidiprofen (Ibuprofen). The product must be stored at controlled room temperature, typically 20 C to 25 C (68 F to 77 F), and must be protected from excessive heat above 40 C.

Storage Rules

  • Keep the medication in its original container and protect it from moisture.
  • It is mandatory to store all forms out of the sight and reach of children.

Disposal Instructions

Official disposal involves using an authorized drug take-back program. If a program is unavailable, the medication must be mixed with an unappealing substance, placed in a sealed bag, and discarded in the household trash. Do not flush the product down the toilet or throw it directly into the trash without following the recommended mixing procedure.

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

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