Axen

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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 Axen

Property Description
Active ingredient Ketoprofen
Form Oral (e.g., tablets/capsules) and Topical (e.g., gels)
Pharmacological class Nonsteroidal Anti-Inflammatory Drug (NSAID)
General Purpose Analgesic, Antipyretic, Anti-inflammatory
Origin Synthetic Chemical Derivative

Axen: Definition and Pharmacological Class

Axen is a pharmaceutical product containing the active substance Ketoprofen, classified fundamentally as a Nonsteroidal Anti-Inflammatory Drug (NSAID). This compound is a synthetic chemical derivative belonging to the propionic acid class, linking it chemically to other well-known agents used for pain and inflammation relief. The International Nonproprietary Name (INN) for the active component is Ketoprofen. This classification is noted for its role in modulating inflammatory responses. Ketoprofen acts as an analgesic and anti-inflammatory agent for the management of acute pain. This means the medicine is designed to help ease acute discomfort and reduce inflammation.

Composition, Forms, and General Therapeutic Purpose

The general therapeutic purpose of Axen is to act as a comprehensive agent, providing relief that is simultaneously analgesic, antipyretic, and anti-inflammatory. The core mechanism involves the reversible inhibition of the cyclooxygenase (COX) enzymes, limiting the biosynthesis of prostaglandins—the chemical mediators responsible for signaling pain and promoting inflammation. The active substance in Axen interrupts the underlying chemical processes of inflammation. This means that the drug addresses the chemical mediators associated with swelling and pain. Axen is manufactured in various high-level dosage forms, including solid oral forms for systemic distribution and topical preparations, such as gels, for localized administration to target specific areas of discomfort. This multi-form availability supports its role in managing symptoms stemming from various inflammatory conditions.

What side effects are possible with Axen?

Possible Side Effects and Safety Information

Axen (Azithromycin) is generally well-tolerated, but like all medications, it can cause side effects. Most common side effects are mild and temporary.


Common Side Effects

These typically involve the gastrointestinal system and may include:

  • Diarrhea
  • Nausea
  • Vomiting
  • Abdominal pain or discomfort

Consult your healthcare provider if these symptoms become persistent or worsen.


Serious Side Effects

Though rare, Axen can cause serious side effects. Seek immediate medical attention if you experience any of the following:

  • Severe Allergic Reactions: Symptoms such as a widespread rash, hives, swelling of the face, tongue, or throat, and difficulty breathing.
  • Liver Problems: Signs like yellowing of the skin or eyes (jaundice), dark urine, pale stools, unusual tiredness, or severe upper stomach pain.
  • Heart Rhythm Issues: A fast, pounding, or irregular heartbeat, especially if you have a known heart condition or low potassium/magnesium levels.
  • Severe Diarrhea: Watery or bloody stools that persist, which may indicate a serious gut infection (Clostridium difficile-associated diarrhea).

Warnings and Precautions

Axen should be used with caution, and your doctor must be informed of your medical history, including:

  • A history of liver disease or cholestatic jaundice caused by previous macrolide use.
  • Existing heart problems, particularly conditions involving abnormal heart rhythms (QT prolongation).
  • Kidney impairment or severe kidney disease.
  • Myasthenia Gravis, as Axen may worsen muscle weakness symptoms.

Do not take Axen if you have a known allergy to azithromycin or any other macrolide antibiotic.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory documentation on Axen (Ketoprofen) describes specific manifestations and the required immediate actions in the event of an overdose. Overdose typically presents with gastrointestinal symptoms such as nausea, vomiting, and abdominal pain, along with Central Nervous System (CNS) disturbances including headache, dizziness, and drowsiness. In severe cases, the official profile documents the potential for life-threatening outcomes, specifically acute renal failure and serious gastrointestinal hemorrhage.

Required Emergency Actions

The regulatory guidance mandates seeking immediate medical attention for any suspected overdose. This action is critical because the official labeling confirms there is no specific antidote known for Ketoprofen toxicity. Urgent medical care is required, particularly if severe manifestations like seizures, trouble breathing, or passing out occur.

Management and Considerations

Treatment is defined by regulators as strictly symptomatic and supportive. Supportive measures may include procedures such as gastric lavage or the administration of activated charcoal, alongside the monitoring of vital signs and renal function.

Regulatory documents note that elderly patients and individuals with existing renal or hepatic impairment are at an increased risk for more severe toxicity following an overdose.

Therapeutic Uses of Axen

What Axen Treats: Main Uses and Benefits

Axen is commonly used to help with symptomatic relief across various clinical contexts, primarily targeting symptoms related to inflammatory or irritative states and physical discomfort. It generally offers symptomatic assistance to help patients better cope with acute, episodic, and chronic manifestations of discomfort. Its therapeutic profile includes managing the signs and symptoms of arthritis and its application in addressing various acute pain states.

It is relevant in conditions characterized by periods of heightened symptoms, such as Rheumatoid Arthritis, Osteoarthritis, Ankylosing Spondylitis, and Primary Dysmenorrhea. The medication also applies to acute localized pain from conditions like tendinitis, bursitis, sprains, strains, toothache, and the distress of Acute Gouty Arthritis flares.

“Axen is applied in addressing symptom clusters related to pain, swelling, and stiffness, contributing to improved comfort during symptomatic periods.”

This supportive role supports the patient during difficult episodes by easing distress when symptoms interfere with routine activities.

Quick Reference: Symptom Management
Axen is commonly used for managing both persistent, long-term discomfort (chronic arthritis) and conditions where symptoms may intensify temporarily (gout, renal colic).

Eligibility and Restrictions for Use

Official Eligibility Profile for Axen

Axen (Ketoprofen) eligibility is strictly defined by regulatory authorities based on a patient's pre-existing conditions and demographic status. Use is generally established for adults when no contraindications are present.

Eligibility Status Key Populations or Conditions
Absolutely Contraindicated Hypersensitivity to Ketoprofen, Aspirin, or other NSAIDs. Severe, uncontrolled cardiac, hepatic, or renal failure. Active peptic ulceration or gastrointestinal hemorrhage. Third trimester of pregnancy. Perioperative pain in the setting of CABG surgery (Coronary Artery Bypass Graft).
Conditional or Restricted Use Patients with non-severe renal or hepatic impairment (requires close monitoring). Patients with a history of hypertension or cardiovascular disease (requires careful evaluation). First and second trimesters of pregnancy (use only if clearly necessary).
Not Recommended Children and adolescents under 15 years (oral forms) or under 12 years (topical forms), as safety is often not established in these age groups. Breastfeeding women. Older adults (ge 65/75 years), where caution and often a reduced initial dose are recommended due to higher risk.

Eligibility criteria may vary by regulatory region, but these core exclusions and restrictions apply across authoritative government labeling. The medicine must not be used against any labeled prohibition.

What should I know about interactions with other medicines?

Axen Interactions with other medicines and products

Axen (Ketoprofen), an NSAID, has officially documented interaction patterns that primarily involve risks of additive toxicity (pharmacodynamic effects) and altered systemic exposure (pharmacokinetic effects), as strictly outlined in government regulatory labeling.

Formal Contraindicated Combinations

Co-administration with Axen is formally prohibited due to the enhanced risk of adverse outcomes with:

  • Other NSAIDs, including COX-2 inhibitors and high-dose salicylates ( > 3 , g/day), due to increased risk of gastrointestinal hemorrhage and ulceration.
  • Oral Anticoagulants (e.g., Warfarin) and therapeutic doses of Heparin, due to a heightened risk of severe bleeding.
  • Lithium and Methotrexate ( > 15 , mg/week), as Ketoprofen reduces their renal clearance, leading to potential toxicity from increased plasma concentrations.

Documented Exposure and Pharmacodynamic Interactions

Interactions involving reduced renal clearance increase the systemic exposure of certain substances; for example, Probenecid significantly increases and prolongs the plasma concentration of Ketoprofen. Pharmacodynamically, co-administration with SSRIs or Corticosteroids increases the risk of gastrointestinal bleeding. Additionally, the combination with Diuretics or ACE/ARBs may reduce their intended effects and increases the risk of acute renal function impairment.

Food and Substance Interactions

Regulatory documents note that co-ingestion of Alcohol significantly increases the risk of gastrointestinal bleeding. Furthermore, the rate of absorption of oral Axen is reduced when administered with food. Administration of some oral formulations is constrained by timing rules requiring co-administration with food or milk to mitigate documented gastrointestinal irritation.

Mechanism of Action

Targeted Blockade of Bacterial Protein Synthesis

Axen exerts its primary action by selectively binding as an inhibitor to the 50S ribosomal subunit within susceptible bacterial cells. This binding specifically prevents the translocation step of protein synthesis—the process where the ribosome shifts along the messenger RNA. This targeted interference prevents the continuous synthesis of essential proteins required for cellular function and reproduction, resulting in a significant reduction in the rate of bacterial cell division.

Modulating the Microbial-Host Balance

This mechanism describes how the drug's action translates into a system-level effect by altering the dynamic between the microbial growth rate and host immune clearance. The reduction in bacterial multiplication results in a decrease in the microbial load presented to host immune cells. This action facilitates the enhanced effectiveness of phagocytic clearance by host immune cells, contributing to the re-establishment of the microbial-host steady state.

Dosage and Administration Information

Axen is administered via two primary routes: oral for systemic action and topical for localized use. The oral dosage is determined by whether the need is acute or chronic. For chronic conditions, the dosing regimen often utilizes the Extended-Release (ER) formulation at 200 mg once daily (QD), or the Immediate-Release (IR) formulation in divided doses, such as 75 mg three times daily (TID). Management of acute pain is typically addressed with the IR form taken as needed (PRN), generally in 25 mg to 50 mg increments every six to eight hours, with the maximum single-day dose not exceeding 300 mg.

When taken orally, Axen may be administered with food, milk, or antacids to reduce potential gastrointestinal upset; however, total absorption is not altered by this timing. A key procedural requirement is that the ER forms must be swallowed whole to ensure the intended release profile. Additionally, patients are instructed to remain upright for at least 10 minutes after oral intake. Dose adjustments are required for certain populations, including initiating lower initial doses for older adults and establishing reduced maximum daily limits for individuals with renal or hepatic impairment. Regarding treatment duration, use of the topical gel is generally limited to short courses, such as up to seven days, while oral forms may be prescribed as part of a longer-term management plan for chronic symptoms.

Recent Clinical Evidence

Research evidence / Overview of Studies for Axen (Ketoprofen)


Evidence for Examining Chronic Inflammatory Conditions

This section summarizes the body of research, including Randomized Controlled Trials (RCTs) and meta-analyses, that was evaluated in the context of symptom patterns related to Rheumatoid Arthritis (RA) and Osteoarthritis (OA). It focuses on the study designs and the patient-reported outcomes describing perceived discomfort.

Research on Rheumatoid Arthritis

Research examined Axen in patients with Rheumatoid Arthritis, a condition characterized by fluctuating or episodic manifestations. Studies monitored outcomes and recorded patterns of changes in measured scores over the treatment periods. Consistency was observed in some studies regarding how patterns of changes in symptom variability were reported over the duration of the trials. However, research focuses on symptomatic outcomes and does not provide insight into underlying disease progression. Long-term effects are not fully established, as follow-up durations were often limited to approximately 12 weeks.

Research on Osteoarthritis

Research has explored Axen in the context of pain and functional limitations associated with Osteoarthritis (OA). Studies focused on both the oral (pill) and topical (gel) forms. Researchers monitored outcomes related to physical discomfort and physical function using specialized scales. For the topical formulation, research examined whether recorded outcomes were observed that were distinguishable from the inactive gel base. Evidence quality varies across studies. Data for long-term outcomes are not fully established beyond the typical trial durations, and results apply only to the patient populations studied.


Evidence for Examining Acute Pain and Injuries

This section will outline the evidence derived from single-dose trials and systematic reviews focusing on Axen in various acute, short-term pain scenarios, including studies conducted during periods of increased symptom activity (such as post-operative settings) and research examining acute musculoskeletal injuries like sprains and strains.

Postoperative Pain Studies

Research examined Axen in studies following surgery. These studies monitored outcomes that captured phases of heightened symptom activity, specifically focusing on the time it took for patients to record a change in pain intensity and the total duration of recorded changes in pain intensity. Findings describe patterns observed in the studies related to short-term changes in pain intensity over the observed time intervals. Because the research primarily examined single-dose scenarios, there is limited information for long-term outcomes or how the findings apply to multi-day protocols.


What Remains Uncertain in the Research Landscape

Follow-up durations were limited across many conditions, meaning that long-term effects and durability of outcomes are not fully established. Comparative evidence is lacking in some areas, particularly in direct comparisons against the newest classes of medications used for chronic pain and inflammation. Research provides context but not individual predictions; findings describe group patterns, not personal outcomes. Evidence highlights what is known — and what is still uncertain about specific long-term symptom patterns and outcomes.

Key Studies & References

  1. Ketoprofen 2.5% gel: a clinical overview (Review on topical and oral formulations in acute/chronic pain)
  2. A Comprehensive Review of Non-Steroidal Anti-Inflammatory Drug Use in The Elderly

Frequently Asked Questions (FAQ)

Common questions about Axen (FAQ)

Q: Is Axen the same kind of medicine as [similar drug name]?

A: Official information classifies Axen as a Nonsteroidal Anti-Inflammatory Drug (NSAID) of the propionic acid class. Studies and official documents indicate that its effectiveness is comparable to that of other well-known NSAIDs, such as Ibuprofen and Naproxen. While they share the same therapeutic class, regulatory documents describe specific differences in their chemical makeup and how they are processed by the body.


Q: Can older adults safely use Axen?

A: Regulatory documents indicate that caution is required when the medicine is used in older adults. This is because studies show that the medicine’s clearance from the body may be reduced in this population, potentially leading to prolonged levels in the blood and a greater risk of toxic reactions. Official guidance describes that a reduced initial dose is often recommended for older adults.


Q: What is known about Axen use during pregnancy or breastfeeding?

A: Official warnings state that use is contraindicated starting at 30 weeks of pregnancy and should be avoided from 20 weeks onward due to serious potential risks to the fetus, particularly concerning the heart and kidney development. Additionally, the medicine is not recommended for women who are attempting to conceive, as the class of medicine it belongs to may impair female fertility.


Q: What happens if I miss a dose of Axen?

A: Patient guidance based on regulatory instructions advises that if a dose is missed, it can be taken as soon as it is remembered. However, if the time is near for the next scheduled dose, the missed dose should be skipped entirely. It is noted that the dose should not be doubled to make up for the missed one.


Q: What should I do if a side effect feels bothersome but not severe?

A: Regulatory guidance and patient safety information advise being alert for all symptoms, especially those of serious events. Official guidance advises patients to report any bothersome symptoms, even if not immediately severe, to a healthcare professional for follow-up.


Q: Can Axen be crushed or split?

A: Official guidance strictly states that extended-release (ER) forms of the medicine must be swallowed whole and must not be crushed or split. This is intended to prevent a rapid, unintended release of the drug, which can alter its absorption. Splitting of immediate-release forms may be permissible only if the tablet is scored and a healthcare professional has approved it.


Q: How often do people experience rare side effects from Axen?

A: Official labeling and patient information often classify side effects by their frequency in clinical studies. For instance, 'Common' side effects may occur in 1% to 10% of people, while a 'Rare' side effect is documented as occurring in less than 0.1% of those taking the medicine.


Q: How long does it usually take to feel the effects of Axen?

A: The time it takes to feel the effects can depend on the specific formulation being used. Official pharmacokinetic data indicates that peak levels of the medicine in the blood are typically reached within 0.5 to 2 hours for immediate-release forms. Sustained-release formulations may take longer, with peak levels occurring between 5 and 6 hours after administration.


Q: What does 'contraindicated' mean in relation to Axen?

A: The term 'contraindicated' refers to a formal, absolute prohibition against using the medicine. According to regulatory documents, a contraindication exists when the risks of using the medicine in a particular situation or person are known to significantly outweigh any potential benefit, increasing the risk of serious harm.


Q: Is it normal to feel a change in energy levels after starting Axen?

A: Official clinical data notes changes in energy as potential side effects. These reports include feelings of fatigue and general malaise. It is noted that any change in energy level should be reported to a healthcare provider.


Q: Does Axen affect sleep patterns?

A: Official reports from clinical data have noted effects on sleep patterns. These reported effects include both insomnia (difficulty sleeping) and, less commonly, somnolence (sleepiness). It is noted that any unusual change in sleep patterns should be reported to a healthcare provider.


Q: Does Axen have a risk of dependence or addiction?

A: The medicine is classified as a Nonsteroidal Anti-Inflammatory Drug (NSAID) and is not typically associated with the risk of dependence or addiction. Its primary function is to reduce pain and inflammation through a mechanism distinct from habit-forming controlled substances.


Q: Why is Axen not suitable for people with certain health conditions?

A: Official warnings and contraindications are established because the medicine may worsen existing serious conditions. For example, it is noted to increase the risk of gastrointestinal bleeding and ulcers, and it may increase the risk of cardiovascular events such as heart attack or stroke in people with pre-existing heart conditions.


Q: Are there any routine tests required while taking Axen?

A: Official patient information indicates that medical and laboratory tests may be recommended during use. These could include monitoring tests such as complete blood count, liver and kidney function tests, and blood pressure monitoring, depending on individual circumstances.


Q: Can I take Axen if I have an existing heart condition?

A: Official warnings state that use should be approached with caution in patients with heart conditions, including hypertension, fluid retention, or heart failure. The medicine may increase the risk of serious cardiovascular events, such as heart attack or stroke, and is specifically contraindicated for pain following coronary artery bypass graft (CABG) surgery.


Q: What are the general expectations for the effect of Axen?

A: Regulatory documents classify the medicine as a Nonsteroidal Anti-Inflammatory Drug (NSAID) with analgesic (pain-relieving), anti-inflammatory, and antipyretic (fever-reducing) properties. Studies describe patterns observed in groups of patients that include recorded changes in pain and functional capacity.


Q: Can Axen cause changes in weight?

A: Changes in weight have been noted in official reports derived from clinical data. Weight gain is listed as a rare side effect, and weight loss has also been noted with an unreported frequency.


Q: How long does Axen stay in your system?

A: Pharmacokinetic data indicates the time it takes for the medicine to be eliminated from the body. The elimination half-life is approximately 2 hours for immediate-release forms, meaning half the dose has been cleared in that time. Slow-release forms may have a longer apparent half-life of 3 to 4 hours.


Q: Is it true that Axen can affect liver function?

A: Yes, official warnings state that the medicine can cause liver problems. These serious effects include increased liver enzymes, liver damage, and signs such as jaundice (yellowing of the skin or eyes).


Q: Can Axen make other medications less effective?

A: Yes, regulatory documents describe interactions where the medicine may diminish the intended effect of other drugs. Specifically, it can reduce the blood pressure-lowering effect of certain medications, such as ACE inhibitors and diuretics.


Q: If I feel better, can I stop taking Axen?

A: Regulatory guidance describes using the medicine exactly as ordered and notes that duration of use should not be changed without professional guidance. This ensures the medicine is used for the intended period as defined by the healthcare plan.


Q: Does Axen impact fertility?

A: Official warnings state that use is not recommended for women who are attempting to become pregnant. This is because the class of medicines Axen belongs to may potentially impair female fertility.

How should Axen be stored and disposed of?

How to Store and Dispose of Axen (Ketoprofen)

Axen must be stored at controlled room temperature, typically between 20 C and 25 C. The medicine must be kept in a tight, light-resistant container and protected from excess heat, moisture, and freezing to preserve product integrity.

Mandatory Storage Constraints

Condition Requirement
Temperature Controlled Room Temperature (20 C–25 C)
Protection Keep from freezing, heat, moisture, and direct light
Safety Store out of the reach and sight of children

Official Disposal Procedures

Unused or expired Axen should be discarded according to local regulations, ideally through a drug take-back program. If using household trash, the medicine must first be mixed with an undesirable substance (e.g., dirt or used coffee grounds) and placed into a sealed container before disposal. The product must not be allowed to enter drains or other waterways.

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

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