LRN

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LRN

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 LRN

Property Description
Active ingredient Lornoxicam
Form Oral tablets, Injectable solutions
Pharmacological class Non-Steroidal Anti-Inflammatory Drug (NSAID)
General purpose Relief from pain, inflammation, and fever
Origin Synthetic organic compound

What is Lornoxicam and What Drug Class Does it Belong To?

LRN is a medicine whose active ingredient is Lornoxicam, a potent, synthetic substance primarily used for the symptomatic relief of pain, inflammation, and fever. Lornoxicam is classified as a Non-Steroidal Anti-Inflammatory Drug (NSAID), belonging specifically to the oxicam chemical class. Lornoxicam is clinically recognized for its analgesic efficacy.

As an NSAID, Lornoxicam's classification defines its fundamental function: to intervene directly in the body’s inflammatory cascade. The drug works by inhibiting the production of prostaglandins, which are chemical mediators responsible for sensitizing nerve endings to pain and initiating localized swelling. The general therapeutic benefit of Lornoxicam, therefore, lies in its capacity to deliver combined analgesic (pain-relieving), anti-inflammatory, and antipyretic (fever-reducing) effects, which is typical of its drug class. Lornoxicam exhibits anti-inflammatory action by blocking key enzymes responsible for inflammation production. This indicates that the medicine is effective at stopping the chemical processes that cause pain and swelling.


Composition, Forms, and General Therapeutic Benefit

Lornoxicam is developed as a single-ingredient product, ensuring that the therapeutic action is exclusively derived from the active substance, Lornoxicam. It is prepared for patient use in both oral solid dosage forms, such as tablets, and sterile parenteral injectable solutions, permitting rapid administration via the intravenous or intramuscular route when immediate systemic action is required. This dual-form availability (oral and injectable) is a differentiating factor, allowing flexibility in clinical settings.

The composition involves the active ingredient combined with pharmaceutical excipients appropriate for either solid oral forms or sterile aqueous solutions. This pharmaceutical structure is essential as it dictates the method of delivery and the speed of absorption into the body. This availability of distinct delivery methods, paired with its mechanism of inhibiting prostaglandin synthesis, allows the medicine to provide effective relief from pain and diminish symptoms of swelling, contributing to its broad therapeutic utility. Lornoxicam is available in multiple formulations, which allows for different delivery methods tailored to the severity of the condition. The drug is available in forms that can be taken by mouth or by injection.

Regulatory References

  1. EMA's referral opinion for Xefo (lornoxicam)
  2. Xefo (lornoxicam) referral information

What side effects are possible with LRN?

Possible Side Effects and Safety Information

Official regulatory documents classify the safety profile of LRN based on frequently reported adverse events and warnings regarding specific serious risks.

Adverse Reactions by Frequency (Select Cases) Incidence (All Grades)
Very Common (Occurring in geq 20% of patients)
Edema (swelling) 56%
Peripheral Neuropathy (nerve damage) 44%
Cognitive Effects (e.g., memory impairment, attention disorder) 28%
Fatigue, Dyspnea (shortness of breath) 27% each
Hypercholesterolemia, Hypertriglyceridemia (high lipids) geq 60% each

Serious and Clinically Significant Risks

The most significant safety concerns described in official labeling are classified by System-Organ Class (SOC):

  • Central Nervous System (CNS) Effects: A wide range of effects can occur, including cognitive, mood, and speech changes, psychotic effects, and seizures. Permanent discontinuation was required in a small percentage of patients (1.3%) due to cognitive effects.
  • Pulmonary Adverse Reactions: Severe or life-threatening Interstitial Lung Disease (ILD) or pneumonitis has occurred. Treatment is required to be permanently discontinued for treatment-related ILD/pneumonitis of any severity.
  • Metabolic and Cardiac Risks: Increases in serum cholesterol and triglycerides (hyperlipidemia) are common and may be severe (Grade 3 or 4). Hypertension (high blood pressure) and Atrioventricular (AV) block, which can affect the heart's rhythm and occasionally necessitate pacemaker placement, have been reported.

Safety-Related Restrictions

LRN is contraindicated in patients taking strong CYP3A inducers due to the risk of serious hepatotoxicity. Based on animal findings, the medicine can cause embryo-fetal toxicity, and both male and female patients of reproductive potential must be advised to use effective non-hormonal contraception during treatment and for a specified period after the final dose. Specific regulatory guidance requires monitoring of blood pressure, fasting serum glucose, and lipids.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information addresses the clinical manifestations and mandated actions required in cases of Lornoxicam (LRN) overdose.


Documented Overdose Signs and Required Actions

Category Description
Documented Overdose Presentations Symptoms include nausea, vomiting, and cerebral symptoms such as dizziness and disturbances in vision.
Emergency-Response Statement The medicinal product should be withdrawn immediately. Usual emergency measures should be considered.
When to Seek Urgent Help Seek immediate medical attention or contact the emergency department for signs of severe complications, including continuous stomach pain (indicating possible GI bleeding), shortness of breath, or chest pains.

Overdose Management

Regulatory documentation confirms that no specific antidote is known to date, and Lornoxicam is not dialysable. Therefore, management is entirely symptomatic and supportive. Procedures that should be considered include gastric lavage and the immediate administration of activated charcoal to diminish absorption. Treatment is focused on stabilizing the patient and addressing specific clinical issues, such as using appropriate agents for documented gastrointestinal disorders.

Therapeutic Uses of LRN

Lornoxicam is generally used to help manage symptomatic discomfort across therapeutic contexts marked by significant pain and inflammation. Its primary benefit is to offer supportive relief, helping patients cope more steadily with difficult episodes and contributing to improved overall comfort during symptomatic periods.

The medication is commonly used across conditions characterized by periods of heightened symptoms and is relevant when short-term symptomatic assistance is needed.

Therapeutic Scope and Relief

Lornoxicam may assist with addressing symptom clusters that include joint pain and stiffness, localized swelling, and acute discomfort. It is applied in addressing the symptoms of chronic inflammatory conditions such as Rheumatoid Arthritis and Osteoarthritis, and acute musculoskeletal episodes, including severe low back pain or sciatica, as well as pain and inflammation following surgical or dental procedures. This symptomatic support helps maintain a sense of stability when symptoms are more noticeable, assisting with functional stability.


Quick Fact: Relief for Pain and Inflammation
Lornoxicam is considered relevant for managing symptoms associated with significant acute or chronic inflammatory processes, offering supportive relief during challenging symptomatic phases.

Eligibility and Restrictions for Use

Who Can and Cannot Use LRN?

The eligibility for LRN (Lornoxicam) is strictly defined by regulatory criteria, establishing specific populations who are permitted to use the medicine and those who are prohibited, based on official regulatory labeling.

Absolute Contraindications Lornoxicam must not be used by individuals with known hypersensitivity to the drug or other Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), including aspirin. It is also contraindicated in patients with severe organ function impairment, including severe hepatic or severe renal failure. Use is prohibited in those with active gastrointestinal bleeding, recurrent peptic ulcers, established bleeding disorders, thrombocytopenia, or severe, uncontrolled heart failure.

Age and Conditional Use This medicine is indicated for use in adults (18 years and older). It is not recommended for children and adolescents under 18 due to a lack of sufficient safety and efficacy data. Caution and close monitoring are required for older adults (over 65) and for patients with mild to moderate hepatic or renal impairment, pre-existing bronchial asthma, or a history of mild heart failure.

Pregnancy and Lactation Lornoxicam is contraindicated during the last trimester of pregnancy. It is not recommended during the first two trimesters, while breastfeeding, or for women who are actively attempting to conceive.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Contraindicated Combinations

Co-administration with other Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), including COX-2 selective inhibitors and high-dose acetylsalicylic acid (aspirin), is formally contraindicated in regulatory documents due to the increased risk of severe adverse events, particularly in the gastrointestinal tract.


Officially Documented Interaction Patterns

LRN can enhance the effects of anticoagulants such as Warfarin and Heparin, resulting in an officially documented increased risk of hemorrhage. Combining LRN with antiplatelet agents or SSRIs (Selective Serotonin Re-uptake Inhibitors) also increases the documented risk of gastrointestinal bleeding and ulceration.

The co-administration of LRN with Diuretics, ACE Inhibitors, or ARBs (Angiotensin II Receptor Antagonists) may reduce the therapeutic effect of these agents. This combination also carries an additive risk of nephrotoxicity. Similarly, the risk of toxicity is officially documented to be heightened with Lithium, Tacrolimus, and Cyclosporine.

The plasma concentration of Lornoxicam is officially documented to be increased by Cimetidine. LRN may also increase the plasma levels of Digoxin and Methotrexate, raising the risk of toxicity from those co-administered medicines. Alcohol consumption is documented to increase the risk of gastrointestinal bleeding. Interactions that increase the risk of bleeding are officially noted to be more significant in elderly patients.

Mechanism of Action

Targeting Cyclooxygenase Enzymes (COX-1 and COX-2)

The core mechanism of Lornoxicam involves its action as an inhibitor of the cyclooxygenase enzymes, COX-1 and COX-2. This balanced suppression of both major enzyme isoforms is the molecular event that initiates the entire physiological cascade by reducing the production of key messengers.


Modulation of the Prostaglandin Synthesis Pathway

By blocking COX activity, Lornoxicam prevents the conversion of arachidonic acid into various inflammatory mediators, particularly Prostaglandin E2 ( PGE2). This reduction in PGE2 synthesis leads to two primary physiological consequences: the desensitization of peripheral nerve endings (nociceptors) and the downward adjustment of the central temperature set-point in the brain.


Secondary Suppression of Inflammatory Mediators

The drug's mechanism also extends beyond the COX pathway, engaging a unique action to suppress the formation of other pro-inflammatory substances, notably Interleukin-6 ( IL-6) and Nitric Oxide (NO). This supplemental activity assists in limiting the impact of excessive mediator activity, which influences the magnitude of the physiological response.

Dosage and Administration Information

How LRN is Used: Administration Guidelines

Lornoxicam (LRN) administration is standardized to provide consistency in its delivery, dosage, and timing in clinical practice. The medicine is used via oral tablets and as a parenteral solution for both intramuscular (IM) and intravenous (IV) injection, facilitating use in both outpatient and acute settings.

Dosing and Frequency

Standard adult dosing for acute pain typically begins with a single dose of 8 mg. The total daily dosage for both pain and inflammatory conditions, such as osteoarthritis, does not exceed the maximum daily dose of 16 mg, administered in two or three divided doses (BID or TID) across the day. For chronic inflammatory conditions, the usual maintenance regimen is 12 mg daily, also given in divided doses. Treatment is designated as short-term use.

Conditions of Administration

Entity Administration Specification
Timing Relative to Meals Oral tablets are taken before meals with sufficient liquid; taking them with food is noted to reduce absorption.
Injection Preparation The injectable powder (e.g., 8 mg) is reconstituted immediately with the supplied solvent (water for injection) prior to IM or IV administration.
Population-Specific Rule For patients with mild to moderate renal or hepatic impairment, the maximum daily dose is limited to 12 mg in divided doses.
Pediatric Use Lornoxicam is not recommended for use in children and adolescents under 18 years of age due to insufficient data.

These instructions establish the framework for LRN administration, defining the route, the maximum allowed dose, and the timing conditions for use.

Recent Clinical Evidence

Research evidence / Overview of studies for LRN

Evidence for Use in Acute, Short-Term Pain

Research examining LRN in acute pain research settings, such as the outcomes related to physical discomfort following surgical or dental procedures, primarily involved numerous short-term Randomized Controlled Trials (RCTs) and subsequent Meta-analyses. These studies were applied in research contexts involving fluctuating or unstable symptoms, examining patient-reported experiences shortly after a painful event. The research often focused on a single administration of LRN, using an inactive control substance or another established pain medicine as a comparator.

In these trials, researchers examined patient-reported outcomes, including the time to the onset of symptom change and measured changes in physical discomfort over short defined time intervals of 6 to 24 hours. The findings describe patterns observed in the studies regarding initial symptom changes. The research provides insight into short-term changes for adult patients experiencing acute, severe physical discomfort, and the evidence contributes to the broader evidence landscape for outcomes describing episodic or acute changes.

Evidence for Use in Chronic Inflammatory Conditions (Arthritis)

The research examining LRN in chronic inflammatory conditions characterized by fluctuating or episodic manifestations, specifically Osteoarthritis (OA) and Rheumatoid Arthritis (RA), consists mainly of intermediate-term Randomized Controlled Trials (RCTs). LRN was evaluated in adult populations diagnosed with symptomatic OA, often affecting the knee or hip, and in those with symptomatic RA.

These studies explored outcomes reflecting daily functioning or activity level, such as patient-reported joint stiffness and scores on functional assessment scales. Trials often compared LRN to other Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) already in use. Findings indicate patterns related to measured changes in outcomes linked to inflammatory or irritative states over the course of the study period. This research describes how symptoms evolved in the observed populations with conditions involving periods of heightened symptoms.

Key Limitations and Uncertainties in the LRN Evidence

Evidence for subsequent or repeated use over longer periods is limited. The majority of studies focus on short-term or episodic symptom patterns, meaning that long-term effects are not fully established, regarding the study observations when LRN was studied repeatedly. Furthermore, data for certain groups remain insufficient (e.g., younger individuals), and the results apply only to the populations studied. While comparative evidence exists, it is often designed to show that LRN is similar to (equivalent to) standard treatments, rather than showing a distinct advantage.

Frequently Asked Questions (FAQ)

Common questions about LRN (FAQ)


Q: Is LRN a brand name or is a generic version available?

The active ingredient in this medicine is Lornoxicam. While it is available under various brand names, such as Xefo, Lornoxicam is classified as a non-steroidal anti-inflammatory drug (NSAID). Depending on your region and regulatory status, generic versions that contain the same active ingredient may be available.


Q: What is the research evidence for LRN compared to a placebo?

Official information indicates that the evidence supporting LRN includes multiple placebo-controlled clinical studies. These studies, particularly those focused on acute pain management, were used by researchers to examine the effects of the medicine on patient-reported symptom changes compared to an inactive control substance.


Q: What is the difference between LRN and other medicines used for the same purpose?

LRN is classified as a Non-Steroidal Anti-Inflammatory Drug (NSAID) that belongs to the oxicam class. Its mechanism is described as the balanced inhibition of both COX-1 and COX-2 enzymes. Additionally, official regulatory information notes that LRN is available in both oral (tablets) and injectable dosage forms, which allows for flexibility in use.


Q: What kind of patient monitoring or follow-up tests are commonly described for LRN?

Official regulatory guidance requires that certain patient health factors be monitored during treatment with LRN. This monitoring specifically includes blood pressure, fasting serum glucose (blood sugar), and lipids (fats in the blood).


Q: Does LRN interact with common dietary supplements or vitamins?

Regulatory documents and official drug interaction data do not provide a complete list of all common dietary supplements or vitamins. However, because LRN is processed by the CYP2C9 enzyme in the body, certain supplements may contain substances that could potentially affect the concentration of LRN. The full list of documented drug interactions is provided in the official product information.


Q: How long does it typically take to notice the expected effects of LRN?

Pharmacological studies describe Lornoxicam as being absorbed rapidly into the body. Official information indicates that for some tablet formulations, a faster onset of action has been observed in clinical research settings compared to other forms.


Q: Are there any long-term safety considerations associated with using LRN?

Official regulatory documents state that the majority of research studies examining LRN have focused on short-term or episodic symptom patterns. Therefore, the effects of subsequent or repeated use over longer periods of time are noted in the evidence overview as not being fully established.


Q: What information is available about the potential for weight change while taking LRN?

Regulatory patient information documents list weight change as an uncommon adverse effect. This potential change may be related to appetite or other effects of the medicine.


Q: Can LRN cause a temporary feeling of tiredness or dizziness?

Official safety information indicates that fatigue (tiredness) is a very common side effect. Dizziness is also listed as a documented adverse effect, typically categorized as uncommon.


Q: How are 'serious' side effects defined for LRN in regulatory documents?

A serious adverse event (SAE) is a standardized regulatory term. It is generally defined in official documents as an event that results in death, is life-threatening, requires or prolongs hospitalization, causes persistent or significant disability, or results in a birth defect.


Q: Are the side effects of LRN different depending on age?

Official documentation notes that the risk of bleeding-related interactions is documented to be more significant in elderly patients. Additionally, LRN is generally not recommended for use in children under 18 due to a lack of sufficient data on that age group.


Q: Is it necessary to avoid certain types of food while taking LRN?

The official administration guidelines for oral LRN tablets state that they should be taken before meals because taking them with food is officially noted to reduce the drug's absorption into the body. Specific food avoidances are not universally mandated for all patients in core regulatory documents.


Q: Are there any studies on LRN use in the pediatric population?

LRN is generally not recommended for use in children and adolescents under 18 because official documents indicate a lack of sufficient safety and efficacy data. However, some specific clinical studies have been performed to examine LRN use in adolescents for certain medical procedures.


Q: Is LRN a controlled substance?

LRN is classified as a Non-Steroidal Anti-Inflammatory Drug (NSAID) and is typically regulated as a prescription-only medicine (Rx). It is not usually classified as a controlled substance like certain narcotics or sedatives.


Q: Does LRN have any known effect on a patient's ability to drive or operate machinery?

Regulatory information notes that LRN can cause adverse effects like fatigue and cognitive changes (effects on thought processes). These symptoms may impact a patient's ability to drive or safely operate machinery. Official patient information often includes a statement to avoid these activities if symptoms such as dizziness or sleepiness occur.


Q: Where can I find the official prescribing information for LRN?

The full official prescribing information, often referred to as the Summary of Product Characteristics (SmPC) or the package insert, can be found directly on the websites of government drug regulatory agencies. Examples include the FDA's DailyMed database or the European Medicines Agency (EMA).


Q: Is LRN used to treat other conditions besides the main indication?

LRN's general purpose is for the symptomatic relief of pain, inflammation, and fever. Research has specifically examined its use in contexts such as acute, short-term pain following procedures, and in chronic inflammatory conditions like Osteoarthritis (OA) and Rheumatoid Arthritis (RA).

How should LRN be stored and disposed of?

How to Store and Dispose of Lornoxicam (LRN)

Official regulatory documentation details specific requirements for the storage, handling, and disposal of Lornoxicam to maintain its quality and prevent harm.

Lornoxicam tablets must be stored at temperatures below 25 C to 30 C and protected from both light and moisture. The tablets should be kept in the original container or outer carton.

For the injectable form, the powder must be stored below 25 C. Once reconstituted, the solution should be used immediately, as its stability is limited; it must not be frozen.

All Lornoxicam products must be kept out of the sight and reach of children.

To dispose of unused or expired medicine, follow local regulatory requirements; Lornoxicam must not be thrown away with household waste or disposed of in wastewater.

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

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