Pirobec

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Pirobec

Quick Facts

Property Description
Active ingredient Piroxicam (INN)
Form Capsules, tablets, gels, solutions for injection
Pharmacological class Nonsteroidal Anti-inflammatory Drug (NSAID)
Common use Symptomatic relief of pain, inflammation, and fever
Origin Synthetic oxicam derivative

Pirobec: Classification and Active Composition

Pirobec is a medicine whose active component is the Piroxicam (INN), classified as a Nonsteroidal Anti-inflammatory Drug (NSAID). This substance is a synthetic oxicam derivative, belonging to the specialized class of enolic acid derivatives, a chemical grouping that distinguishes it structurally from many other analgesic compounds.

The drug is a single-component product focused exclusively on the properties of the Piroxicam active ingredient. Being a laboratory-created, synthetic compound, Piroxicam’s classification as an NSAID means its primary function is to modulate the body’s inflammatory response. The compound’s structure allows for a sustained action profile, which supports a lasting anti-inflammatory and analgesic effect.

General Purpose and Symptomatic Relief

The general purpose of Pirobec is to provide symptomatic relief from issues associated with pain, inflammation, and fever. It achieves this by acting as a non-selective inhibitor of cyclooxygenase (COX) enzymes, thereby restricting the production of prostaglandins, which are key chemical mediators of inflammatory responses. This dual action is particularly useful in managing chronic inflammatory conditions.

By inhibiting the synthesis of these chemical messengers, the Piroxicam component mitigates the physical manifestations of inflammation, such as swelling and stiffness, while simultaneously alleviating associated pain and helping to normalize elevated body temperature. Piroxicam is used for its anti-inflammatory and analgesic effects.

Available Pharmaceutical Forms and Delivery Type

Piroxicam, marketed under the Pirobec trade name, is produced in diverse pharmaceutical preparations, including both systemic and local forms. These preparations include common oral dosage forms, such as capsules and tablets, alongside specialized formulations such as topical gel, suppositories, and solutions for parenteral (injection) administration. The versatility of the compound allows clinicians to target therapy to specific symptomatic areas. The availability across multiple routes of administration (oral, rectal, topical) ensures the active ingredient can be delivered effectively depending on the patient’s symptomatic needs.

Regulatory References

  1. NIH MedlinePlus Drug Information

What side effects are possible with Pirobec?

Official Adverse Reactions and Safety Profile

The safety profile for Piroxicam, the active ingredient in Pirobec, is officially documented by regulatory authorities using a System-Organ-Class (SOC) structure and defined frequency classifications (such as Common, Uncommon, Rare, and Not Known). The most frequently reported adverse reactions fall under Gastrointestinal Disorders.

Key Documented Safety Findings

Safety Domain Regulatory Statement
Common Side Effects Nausea, vomiting, dyspepsia, abdominal pain, diarrhea, constipation, headache, and dizziness are officially listed.
Serious Adverse Reactions Regulatory documents highlight the risk of severe events, including peptic ulceration, gastrointestinal bleeding, and perforation, which can be fatal. The risk of myocardial infarction (heart attack) and stroke (thrombotic events) is also documented.
Time-Related Patterns The risk of serious gastrointestinal adverse reactions is officially noted to be elevated at the start of treatment and is associated with long-term use. Cardiovascular thrombotic risk increases with the duration of use.

Population-Specific Safety Considerations

The regulatory safety profile includes specific considerations for certain groups. Older adults are documented to have a significantly increased risk of serious gastrointestinal events. Patients with established cardiovascular disease or risk factors face an elevated risk of serious thrombotic events.

Administration is contraindicated in several systemic conditions, including active peptic ulcer, severe heart failure, severe renal impairment, severe hepatic impairment, and during the third trimester of pregnancy, regardless of the pharmaceutical form.

Overdose and Emergency Response

Overdose and When to Seek Help: Official Regulatory Information for Pirobec

This information describes the officially documented manifestations and required emergency procedures for Piroxicam (Pirobec) overdose, as specified by government regulatory authorities.


Overdose Scope

Scope Component Official Regulatory Statement
Documented Manifestations Nausea, vomiting, diarrhea, severe headache, confusion, seizures, decreased consciousness, stomach pain, and potential gastrointestinal bleeding.
Severe Outcomes Acute renal failure, cardiovascular shock (low blood pressure), coma, and life-threatening gastrointestinal perforation or hemorrhage.
Population Note Individuals with pre-existing kidney or liver disease have an increased risk of serious side effects following an NSAID overdose.

Emergency Actions and Management

Action Component Official Regulatory Statement
Immediate Action Seek emergency medical attention immediately if an overdose is suspected, or call the Poison Control Center for guidance.
Urgent Help Trigger Contact emergency services (e.g., 911) if the person collapses, has a seizure, or cannot be aroused.
Antidote No specific antidote is known for Piroxicam overdose.
Management Protocol Treatment is symptomatic and supportive, potentially including activated charcoal and mandatory monitoring of vital signs, blood tests, and ECG in a hospital setting.

Regulatory documents emphasize that the overdose profile includes the potential for serious toxicity, necessitating immediate contact with emergency services for critical signs to ensure appropriate supportive care.

Therapeutic Uses of Pirobec

What Pirobec Treats: Main Uses and Benefits

Pirobec is commonly used to help with symptomatic relief across domains involving inflammatory or irritative states. The medication is used when supportive symptom management is appropriate for conditions involving episodic or fluctuating manifestations. This medication is generally applied when managing symptoms associated with long-term, chronic conditions, including Osteoarthritis, Rheumatoid Arthritis, and Ankylosing Spondylitis, and is relevant for addressing acute episodes such as low-back pain and primary dysmenorrhea.

It helps address symptom clusters that may become intense or disruptive, including persistent joint pain, stiffness, and localized swelling (symptoms that interfere with daily functioning). The supportive use helps ease the overall symptom burden and is used to support functional stability during symptomatic periods. It is also relevant for easing symptoms associated with acute or episodic changes, and may assist with managing systemic fever.


Quick Fact: Relief for Musculoskeletal Discomfort

Symptom Domain Primary Symptom Relief
Chronic Conditions Joint stiffness and persistent pain
Acute Episodes Inflammation and acute musculoskeletal pain
Systemic Symptoms Elevated body temperature (fever)

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Who Can and Cannot Use Pirobec?

The eligibility for Pirobec (Piroxicam) is strictly defined by regulatory documents based on a patient's age, physiological state, and existing medical conditions.

Approved and Restricted Populations

Population Group Regulatory Status
Adults Approved for licensed indications (e.g., Osteoarthritis, Rheumatoid Arthritis).
Pediatrics (< 16 yrs) Dosage and indications are not established.
Older Adults (> 70 yrs) Restricted use (lowest dose/shortest duration); avoided if over 80 years.

Absolute Contraindications

Pirobec must not be used in populations presenting with the following official contraindications:

  • Known hypersensitivity to piroxicam or cross-sensitivity (e.g., NSAID-induced asthma or urticaria).
  • Active gastrointestinal ulceration, bleeding, or perforation, or a history of these events.
  • Severe uncontrolled heart failure or severe renal/hepatic failure.
  • Management of peri-operative pain in CABG surgery.

Physiological Restrictions

The medicine is contraindicated during the third trimester of pregnancy (at or after 30 weeks gestation). It is generally not recommended for women who are breastfeeding or actively attempting to conceive. Use also requires caution and monitoring in patients with non-severe impaired renal or hepatic function.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents define specific interaction patterns for Pirobec (Piroxicam) based on pharmacokinetic and pharmacodynamic effects.

Contraindicated or Restricted Combinations

The co-administration of Pirobec is restricted with other systemic Nonsteroidal Anti-inflammatory Drugs (NSAIDs) and analgesic doses of aspirin due to an officially documented increased risk of serious gastrointestinal events. Piroxicam is also strictly prohibited for use in the setting of perioperative pain management following coronary artery bypass graft (CABG) surgery.

Effects on Co-medication Exposure and Function

Pirobec can alter the plasma levels of certain co-administered medicines. The use of Pirobec with Lithium or Digoxin can increase the serum concentration and prolong the half-life of these drugs. Similarly, Piroxicam may increase the blood levels of Methotrexate by reducing its excretion. Pirobec may also diminish the therapeutic effects of Antihypertensive Agents (e.g., ACE inhibitors and ARBs) and Diuretics.

Bleeding Risk and Metabolic Factors

Co-administration with medicines that interfere with blood clotting, such as oral anticoagulants, SSRIs, and certain antiplatelet agents, enhances the official risk of bleeding. Piroxicam is primarily metabolized by the enzyme CYP2C9, meaning individuals identified as poor metabolizers may experience abnormally high systemic exposure. Furthermore, the ingestion of excessive alcohol is an interaction factor that increases the risk of serious GI complications.

Mechanism of Action

Modulating the Cyclooxygenase (COX) Pathway

Pirobec operates as a non-selective competitive inhibitor of the cyclooxygenase (COX) enzymes, which are key enzymatic targets within the Arachidonic Acid Cascade. By engaging this mechanism, Pirobec suppresses the initial molecular step that shapes downstream physiological outcomes.


Reducing Prostaglandin Synthesis

The primary interaction results in a marked decrease in the cellular production of prostaglandins, which are lipid mediators involved in localized vascular and neural signaling. This molecular effect reduces mediator activity and promotes lower signaling levels within the targeted physiological pathways.


Dampening Peripheral Signaling

The resultant lower concentration of these mediators contributes to a systemic dampening of peripheral signaling. This action reduces the magnitude of physiological responses by decreasing the sensitization threshold of local pain receptors (nociceptors) and limiting subsequent localized fluid shifts (edema) in affected tissues.

Dosage and Administration Information

How Pirobec is Used: General Administration Guidelines

Administration of Pirobec (Piroxicam) is typically managed through specific dosing and procedural instructions, using the lowest effective dosage for the shortest duration necessary for the individual case.

Standard Labeled Dosing Regimens (Adults)

Condition Standard Dose (Oral) Frequency Max Daily Dose Duration/Timing Note
Chronic Use (OA, RA) 20 mg (or 10 mg twice daily) Once Daily (qD) 20 mg Final effect is typically assessed after 2 weeks
Acute Disorders 40 mg daily for the first 2 days, then 20 mg daily Single or Divided Doses 40 mg (initial) Course duration is typically 7 to 14 days

Administration Instructions and Routes

The primary route of administration is oral, using 10 mg or 20 mg capsules or tablets.

  • Intake Condition: Oral Pirobec is typically taken with food or a large volume of water (8–12 oz) to help minimize irritation of the gastrointestinal lining.
  • Capsule Integrity: Capsules are intended to be swallowed whole and not crushed, broken, or chewed.
  • IM Route Restriction: Piroxicam solution for injection (20 mg/mL) is administered via deep intramuscular injection only when the oral route is not feasible. Its use is limited to a maximum of 2 to 3 days, after which a transition to an oral form is standard.

Population-Specific Dosing Rules

Dosing rules apply to specific groups to manage potential risks:

  • Older Adults (Geriatrics): Treatment typically begins at the low end of the dosage range and involves close monitoring.
  • Poor Metabolizers (CYP2C9): A dose reduction may be necessary for patients identified or suspected to be poor metabolizers of the CYP2C9 enzyme to avoid elevated plasma levels.

Recent Clinical Evidence

Research Evidence: Overview of Studies for Pirobec (Piroxicam)

This section summarizes the structure of the clinical research for Pirobec, focusing only on the types of studies conducted, the populations they examined, and the outcomes they measured. This overview is purely descriptive and does not offer clinical advice or make predictions about individual outcomes.


Evidence for Use in Chronic Joint Conditions (Osteoarthritis and Rheumatoid Arthritis)

Research for chronic joint diseases relies primarily on Randomized Controlled Trials (RCTs) and meta-analyses. These studies focus on patient groups experiencing fluctuating symptoms like persistent joint pain and stiffness. Researchers monitored outcomes related to physical discomfort, including pain intensity and measured joint stiffness. Observations indicated that the measured symptomatic changes generally followed patterns seen when other traditional NSAIDs were evaluated. Long-term functional effects are not fully established in primary efficacy studies, as many RCTs have limited follow-up durations, often less than three months.


Evidence for Ankylosing Spondylitis and Acute Symptoms

Research conducted to evaluate Ankylosing Spondylitis (AS) involves RCTs and prospective studies, monitoring outcomes related to spinal pain and changes in functional measures. Findings were generally aligned with research on the NSAID class. The dedicated, large-scale RCT evidence focusing exclusively on Piroxicam in AS is not as voluminous as the research for OA and RA.

Historically, research also examined single-dose RCTs for short-term pain intensity changes. However, regulatory reviews have resulted in systemic Piroxicam no longer being indicated for acute, short-term pain and inflammation in many regions.


Evidence Gaps and Limitations

Scientific reviews highlight areas where certainty remains low. Many efficacy comparisons are derived from studies with limited follow-up durations, meaning the long-term profile is not fully characterized. Research including older adults has been conducted, but data for certain other subgroups remain insufficient. The evidence provides limited information for long-term functional outcomes, as extended research often focuses on general safety surveillance rather than functional measures. The study results reflect the specific conditions under which they were conducted and do not constitute personal predictions.

Key Studies & References Piroxicam Capsules Label - FDA DailyMed: Official Indications, Warnings, and Adverse Event Risk

Frequently Asked Questions (FAQ)

Common questions about Pirobec (FAQ)


Q: Are there any common lifestyle products that might interact with Pirobec?

Official regulatory documentation states that a serious risk associated with Piroxicam is cardiovascular events. It notes that smoking is itself considered a significant risk factor for these events. The documentation primarily focuses on drug-drug and excessive alcohol interactions, which are identified as increasing risk.

Q: Does Pirobec cause drowsiness or affect daily activities like driving?

Piroxicam is associated with certain central nervous system effects documented in official reports. These include potential side effects such as dizziness, vertigo, and drowsiness. If these effects occur, caution is advised when performing activities requiring mental alertness.

Q: Is there a generic version of Pirobec available?

Yes, official regulatory records confirm that the active ingredient, Piroxicam, has been available as a generic medicine for a long time. It is marketed globally by various manufacturers under many different brand names, following its original patent expiration.

Q: What are the official safety classifications for Pirobec in major regulatory bodies?

Piroxicam carries specific regulatory safety classifications depending on the region and formulation. For instance, the systemic form is classified as Prescription Only Medicine (POM or Rx-only) in major markets. The medicine is also officially contraindicated for use during the third trimester of pregnancy.

Q: Are there different brand names for the same active ingredient as Pirobec?

Yes, the active component of Pirobec, which is Piroxicam, is available worldwide under numerous different brand names. The most well-known original trade name for the active substance is Feldene.

Q: How quickly can someone expect Pirobec to start working?

Symptomatic relief often begins early in the course of therapy. However, official information for chronic conditions indicates that the full anti-inflammatory effect may take a progressive response period of up to 8 to 12 weeks to be fully realized.

Q: Does Pirobec have a high potential for dependence or misuse?

Piroxicam is not listed as a federally classified controlled substance in the United States. It has no DEA Schedule assignment, which indicates a low potential for misuse or dependence under major regulatory categories.

Q: What happens if I miss a dose of Pirobec (non-directive question)?

Instructions for what to do after a missed dose are typically detailed in the medicine’s official patient information leaflet. For example, some regulatory monographs provide specific recommendations, such as taking the dose if it is remembered within a short time frame.

Q: How is Pirobec generally eliminated from the body?

Piroxicam is primarily eliminated from the body after it is processed, or metabolized, by a specific liver enzyme known as CYP2C9.

Q: Is Pirobec considered a first-line treatment for its main uses?

Regulatory reviews have resulted in recommendations to restrict the use of Piroxicam. Due to its overall risk profile, major regulatory bodies recommend that its use be limited to the treatment of certain chronic inflammatory conditions.

Q: How long does the effect of one dose of Pirobec usually last?

The pain-relieving effects from a single dose are typically measured by researchers over a period of four to six hours. The drug's long half-life is a factor supporting its once-daily administration for chronic conditions.

Q: Is Pirobec a scheduled drug (controlled substance)?

Piroxicam is not a federally classified controlled substance. It is not listed with a DEA Schedule assignment in the United States.

Q: Why do some people need to have blood tests while taking Pirobec?

Blood tests may be specified in the official label when Piroxicam is used alongside certain other medications, such as Lithium or Methotrexate. This monitoring is specified to check the levels of co-administered drugs or to look for signs of potential changes in organ function.

Q: Is Pirobec linked to any specific mental health side effects?

Regulatory postmarketing surveillance reports list rare psychiatric side effects associated with Piroxicam. These reports have included conditions such as anxiety, confusion, depression, and mood alterations.

Q: Does Pirobec interact with common anesthetic agents (informational)?

Official guidelines for managing medication around surgical procedures address Piroxicam use. This is due to the potential for interactions that could increase the risk of bleeding or affect pain control during and after surgery.

Q: Why is there a warning about Pirobec and sun exposure?

Piroxicam has been associated with a side effect known as photosensitivity in official reports. Photosensitivity means the medicine can increase the skin's sensitivity to sunlight, making sunburn or rashes more likely.

Q: Can Pirobec be obtained without a prescription in some places (informational)?

The availability of Piroxicam without a prescription depends on the country and the drug's formulation. While the systemic forms (tablets, capsules) are generally prescription-only, some regions permit Piroxicam gel 0.5% to be obtained over the counter.

Q: Does Pirobec have any potential impact on sleep patterns?

Regulatory postmarketing reports have included data suggesting Piroxicam is associated with disturbances to sleep patterns. Specifically, these reports have mentioned side effects such as insomnia and dream abnormalities.

Q: How long after stopping Pirobec does it usually take for the drug to clear the system?

Piroxicam is known to have a long elimination half-life, which is approximately 55 hours. Because of this, it typically takes several days for the medicine to be completely cleared from the system following the last dose.

Q: Is Pirobec associated with weight changes?

Official adverse reaction reports list weight changes as a possible side effect of the medicine. Rapid weight gain is specifically noted in the clinical information as a symptom that has been reported in cases of overdose.

How should Pirobec be stored and disposed of?

How to Store and Dispose of Pirobec? (Official Regulatory Information)

Labeled Storage Temperature Requirements: Store at controlled room temperature, typically 20 C to 25 C.
Light/Moisture Protection Requirements: Must be protected from light and moisture (stored in a dry place).
Handling and Packaging Requirements: Do not freeze. Keep the medicine in the original container and keep the container tightly closed.
Child-Protection Storage Requirements: Keep out of the sight and reach of children as required for all medicines.
Disposal Instructions: Dispose of unused or expired product according to local requirements, often by returning it to a pharmacist or a designated collection program.
Environmental Restriction: The medicine must not be discarded via wastewater or household waste, unless specifically permitted by local regulations.

Storage conditions are defined to maintain the product's stability until the labeled expiry date. The original, tightly closed container provides necessary protection from light and moisture. Final disposal is subject to formal regulatory protocols that prohibit disposal in standard household trash to prevent environmental release.

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

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