Nimesulida Pasteur

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Medically reviewed

Rosario Oropesa

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 Nimesulida Pasteur

Quick Facts

Property Description
Active ingredient Nimesulide
Form Tablet, Granules, Suppository, Topical Gel
Pharmacological class Non-Steroidal Anti-Inflammatory Drug (NSAID)
General purpose Symptomatic relief of pain, inflammation, and fever
Origin Synthetic chemical compound

What Type of Medicine is Nimesulida Pasteur?

Nimesulida Pasteur is the trade name for a medication whose sole active substance is Nimesulide, a synthetic compound classified as a Non-Steroidal Anti-Inflammatory Drug (NSAID). This chemical entity is a sulfonanilide derivative, distinguishing its molecular structure from that of other traditional NSAIDs, such as common profens or fenacs. Based on its anti-inflammatory properties, Nimesulide is formally categorized within this class.

The drug's primary classification is specifically as a preferential cyclooxygenase-2 (COX-2) inhibitor. This characteristic provides a focused mechanism of action compared to older, non-selective NSAIDs. This unique profile in the NSAID class underpins its targeted activity against the biochemical pathways of inflammation.


What is the Composition and General Purpose of Nimesulida Pasteur?

The medication is a single-ingredient product whose composition is defined exclusively by the active ingredient Nimesulide integrated into a suitable pharmaceutical base. Its general purpose is to provide symptomatic relief by addressing the core signs of the body's defensive response: pain, inflammation, and fever.

The mechanism connects directly to this purpose: Nimesulide works by inhibiting the production of prostaglandins, which are essential mediators of these symptoms. The medication is designed to address acute symptoms and is used for easing physical distress. By suppressing these inflammatory chemicals, the medication reduces the signaling of discomfort, helps to alleviate swelling, and assists in normalizing elevated body temperature.


What Forms Does Nimesulida Pasteur Come In?

Nimesulida Pasteur is available in several physical presentations, ensuring various routes of administration, including oral, rectal, and topical applications. This variety, including granules for oral suspension and topical gels, is a key differentiating factor, providing flexibility compared to medications available only as a single tablet form. The common dosage form(s) include tablets and granules for oral suspension for systemic effects, suppositories for rectal use, and topical gels for direct cutaneous application.

What side effects are possible with Nimesulida Pasteur?

Possible side effects and safety information for Nimesulida Pasteur

Adverse Reaction Scope

Nimesulida is a non-steroidal anti-inflammatory drug (NSAID) whose use is associated with a risk of serious hepatotoxicity, including cases of acute liver failure that may require liver transplantation, which is a key safety concern distinguishing it from many other NSAIDs. Gastrointestinal adverse reactions, such as ulceration, bleeding, and perforation, are also documented, consistent with the NSAID class profile. Other system-organ classes involved include the renal system (renal impairment, acute renal failure), skin/hypersensitivity reactions (rash, urticaria), and the cardiovascular system (potential increased risk of thrombotic events like myocardial infarction and stroke).

Safety Restrictions and Contraindications

Due to the risk of liver damage, the regulatory basis for Nimesulida use includes stringent restrictions:

  • Duration Limit: Treatment is strictly limited to a maximum of 15 days. Long-term or continuous use (over 15 days) is specifically prohibited to minimize hepatotoxicity risk.
  • Second-Line Treatment: It must only be prescribed as a second-line analgesic when other non-steroidal anti-inflammatory options have failed.
  • Contraindications: Nimesulida is contraindicated in patients with a history of hepatotoxic reactions to the drug, existing liver impairment, severe renal impairment (creatinine clearance < 30 mL/min), active gastrointestinal ulceration or bleeding, severe heart failure, severe coagulation disorders, and in children under 12 years of age.
  • Immediate Cessation: Treatment must be stopped immediately if symptoms of potential liver injury occur, such as loss of appetite, persistent tiredness, nausea, vomiting, or dark urine. Treatment must not be restarted in such cases.

Overdose and Emergency Response

Overdose Scope

Property Description (Official Regulatory Statement)
Documented overdose presentations Initial manifestations may include nausea, vomiting, epigastric pain, lethargy, and drowsiness.
Physiological systems affected Gastrointestinal system, renal system (acute renal failure), nervous system (coma, respiratory depression), cardiovascular system, and potential for hepatic injury.
Population-specific overdose notes Patients with pre-existing hepatic impairment or severe renal impairment are noted to be at heightened risk for severe outcomes.
Emergency-response statements Management consists of symptomatic and supportive care. No specific antidote is documented.
When immediate medical help is required Seek immediate medical attention for severe symptoms or if the patient exhibits signs of potential hepatic injury, such as dark urine or persistent tiredness. Hospital monitoring may be required.

Overdose Classifications (High-Level)

Classification Description (Official Regulatory Statement)
Severity classification Manifestations are typically described as reversible with supportive care, but severe outcomes like gastrointestinal bleeding, acute renal failure, and coma are explicitly documented as potential risks.
Overdose-context constraints No specific antidote is known for Nimesulida Pasteur overdose.

Resulting Overdose Structure

Official overdose statements:

  • Overdose may present with common signs including nausea, vomiting, epigastric pain, lethargy, and drowsiness.
  • Severe manifestations officially documented include gastrointestinal bleeding, acute renal failure, respiratory depression, and coma.
  • Immediate medical attention is required for severe symptoms or if the patient exhibits signs of potential hepatic injury, at which point the regulator mandates to stop taking Nimesulida Pasteur immediately.

Connection to the overall overdose profile (2–4 sentences): Regulatory documents define the overdose profile by listing common initial symptoms alongside a clear warning of potential severe, life-threatening outcomes. The mandated guidance on when to seek help is established by these documented severe manifestations and the explicit instruction to seek immediate care if any sign of potential hepatic injury is observed, confirming the official absence of a specific countermeasure and the need for symptomatic and supportive care.

Therapeutic Uses of Nimesulida Pasteur

What Nimesulida Pasteur Treats: Main Uses and Benefits

The primary purpose of Nimesulida Pasteur is to provide supportive relief by assisting with symptoms related to physical discomfort: pain, inflammation, and fever. It is applied across domains where short-term symptomatic assistance is needed due to heightened or sudden symptom clusters. The medication's use is identified for the management of acute pain and primary dysmenorrhoea.


Symptom Relief and Clinical Contexts

Nimesulida Pasteur is commonly used to help with symptoms that are associated with acute or episodic changes, such as discomfort associated with soft tissue injuries like sprains and strains, as well as postoperative pain following dental or minor surgical procedures. It is also applicable within clinical settings that involve recurrent or episodic symptom patterns, including the cramping of primary dysmenorrhoea, and may be part of symptomatic management during flare-ups of chronic joint conditions such as osteoarthritis. In situations where patients experience heightened symptoms, symptoms related to inflammatory or irritative states, the medication helps ease the overall symptom load.

“The medication supports patients during difficult episodes by easing distress and providing supportive relief when symptoms interfere with routine activities.”

Quick Fact: Symptom Management Focus Property Description
Primary Focus Conditions involving episodic or fluctuating manifestations
Therapeutic Focus Acute pain, primary dysmenorrhoea, osteoarthritis flare-ups
Symptom Cluster Pain, Inflammation, Fever
Patient-Oriented Focus Supports general well-being during symptomatic periods

Regulatory References

  1. European Medicines Agency (EMA) overview

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Nimesulida Pasteur

The eligibility for systemic use of Nimesulida Pasteur (Nimesulide) is highly constrained by official regulatory documents, defining specific groups who are allowed to use it and numerous absolute exclusions.

Eligibility Status Applicable Populations
Allowed (Short-Term Use) Adults and Adolescents (ge 12 years).
Not Recommended Women attempting to conceive; Women in the first and second trimesters of pregnancy.

Contraindicated Populations (Must Not Use)

Systemic formulations are contraindicated in the following groups and conditions, as stated in product labels from international regulatory authorities:

  • Pediatric Use: Children under 12 years of age.
  • Organ Impairment: Patients with hepatic impairment (all degrees) or severe renal impairment (creatinine clearance < 30 ml/min).
  • Reproductive Status: Women in the third trimester of pregnancy and women who are breastfeeding/lactating.
  • Pre-existing Conditions: Patients with active gastrointestinal bleeding or ulceration, a history of hepatotoxic reaction to Nimesulide, severe heart failure, active bleeding disorders, or severe coagulation disorders.
  • Acute Symptoms: Patients presenting with fever and/or flu-like symptoms.

Furthermore, regulatory guidelines mandate that the medication is restricted to second-line treatment and for a maximum duration of 15 consecutive days for all approved individuals.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Nimesulida Pasteur's interaction profile is governed by official regulatory constraints concerning combination restrictions and altered drug exposure.

Formal Restrictions and Contraindications

The medication is formally contraindicated for co-administration with other potentially hepatotoxic substances, which includes other Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) and Paracetamol. This restriction, alongside the mandated avoidance of excessive alcohol consumption, addresses the documented risk of serious liver toxicity.

Pharmacodynamic Interactions

The co-administration of Nimesulida Pasteur with anti-coagulants (e.g., Warfarin) and anti-platelet agents carries a pharmacodynamic risk resulting in an officially documented increased risk of bleeding and hemorrhage. Furthermore, Nimesulida Pasteur can reduce the efficacy of Diuretics (e.g., Furosemide) and certain antihypertensive agents (ACE inhibitors, AIIA). Caution is specified for use with these agents in patients with reduced renal function, as it may lead to a deterioration of kidney function.

Pharmacokinetic and Exposure Effects

Nimesulida Pasteur is documented to inhibit the CYP2C9 enzyme, which can elevate the plasma concentrations of co-administered drugs that are substrates for this enzyme. This effect necessitates caution with medications such as Lithium and Methotrexate due to the risk of toxicity from increased drug exposure. Additionally, Nimesulide reduces the bioavailability and cumulative excretion of Furosemide.

Mechanism of Action

Targeted Enzyme Inhibition and Prostaglandin Modulation

This domain covers the drug's core molecular action: the preferential inhibition of the Cyclooxygenase-2 ( COX-2) enzyme within the Arachidonic Acid Cascade. This interference reduces the synthesis of Prostaglandin E2 ( PGE2), a central mediator involved in the sensitization of nociceptors and the elevation of the hypothalamic temperature set-point. This mechanism is central to the modulation of physiological processes linked to nociceptive signaling and central thermoregulation.

Non-COX Tissue Protection and Signaling Dampening

Beyond its primary enzyme target, the mechanism includes non-enzymatic actions, such as the scavenging of Reactive Oxygen Species (ROS) and the inhibition of Matrix Metalloproteinases (MMPs). These complementary actions influence processes that involve cellular damage and tissue matrix degradation, thus contributing to the regulation of the inflammatory cascade. This approach involves the modulation of physiological signaling and affects the state of activity within the affected pathways.

Dosage and Administration Information

How Nimesulida Pasteur is Used: Official Administration Guidelines

Nimesulida Pasteur, which contains the active ingredient Nimesulide, is administered according to specific protocols that define the route, dose, frequency, and duration of use. The medication is available for systemic use via the oral and rectal routes, and for local use via the topical (cutaneous) gel.


Standard Dosing and Frequency

For systemic treatment, administration is governed by the principle of using the minimum effective dose for the shortest possible duration.

Use Type Standard Adult Dose Frequency and Maximum Duration
Systemic (Oral/Rectal) 100 mg Nimesulide Twice daily (bid)
Maximum Systemic Dose Not to exceed 200 mg per day The treatment course must not exceed 15 consecutive days
Local (Topical Gel) Apply a thin layer to the affected area Two to three times daily; typically not exceeding 15 days

Administration Requirements and Restrictions

Oral forms of Nimesulide (tablets or granules) must be taken after meals (post-meal administration). Granules require dissolution in water immediately prior to intake. Systemic Nimesulide is officially contraindicated for use in children under 12 years and in patients with severe renal or any hepatic impairment. While no dose adjustment is generally required for older adults or adolescents (12–18 years), the overall limits on daily dose and duration must be strictly maintained. These constraints define the standardized approach to using the medicine.

Recent Clinical Evidence

Research evidence / Overview of studies for Nimesulida Pasteur


Evidence for Use in Acute Pain Relief

Research for acute pain primarily relies on short-term Randomized Controlled Trials (RCTs) in adults and adolescents (≥12 years). These studies observed patient-reported outcomes related to physical discomfort and the use of rescue pain medication. Findings describe patterns related to pain intensity metrics during brief treatment periods. However, results apply only to the populations studied, and long-term effects are not fully established beyond the acute phase.


Evidence for Primary Dysmenorrhoea

Nimesulide research examined this condition, which is characterized by fluctuating, episodic manifestations, primarily through short-term RCTs. Studies focused on patient-reported outcomes describing perceived discomfort and how symptoms evolved during a defined menstrual interval. The follow-up durations were limited, typically confined to one or two cycles, and comparative evidence is lacking or varied across studies examining Nimesulide against other treatments.


Context of Evidence for Osteoarthritis

Studies evaluated Nimesulide for short-term symptom outcomes in osteoarthritis, monitoring functional status using tools like the WOMAC scale. While trials reported patterns related to patient-reported discomfort, the overall regulatory consensus involves restricting use to very short-term durations (maximum 15 days). Consequently, evidence describing patterns for this chronic condition over longer periods is not actionable.


Research Gaps and Follow-up Duration

The majority of pivotal studies focused on short-term follow-up durations (up to 15 days), meaning the evidence is constrained to addressing temporary symptom management. There is limited information for long-term outcomes and sustained patterns once treatment is stopped. Although adolescents (≥12 years) were included in acute pain trials, data remains insufficient for children under 12, specific comorbidity groups, and the elderly.

Key Studies & References

  1. Primary Dysmenorrhea: Assessment and Treatment (Used for clinical background and first-line treatment context)
  2. U.S. National Library of Medicine (Used for general drug classification and context)

Frequently Asked Questions (FAQ)

Common questions about Nimesulida Pasteur (FAQ)

Q: What is the main difference between Nimesulida Pasteur and other common pain relievers?

Official documents classify the active ingredient, Nimesulide, as a preferential COX-2 inhibitor, which is a structural distinction from older, non-selective Non-Steroidal Anti-Inflammatory Drugs (NSAIDs). Its regulatory profile includes specific warnings about the potential risk of hepatotoxicity, which distinguishes its authorized use and restrictions from some other analgesic agents.

Q: Can Nimesulida Pasteur be used for chronic pain conditions?

According to official administration guidelines, the treatment course for this medication is strictly limited to a maximum of 15 consecutive days. This mandatory duration restriction means the product is not intended for long-term or sustained management, even when used for chronic conditions.

Q: What are the most common reported side effects of Nimesulida Pasteur?

While official warnings emphasize serious risks like liver injury, the most common side effects reported, according to official adverse event data, may include stomach discomfort, nausea, vomiting, and diarrhea.

Q: Are there any specific foods or drinks that should be avoided when taking Nimesulida Pasteur?

Official documents advise avoiding excessive alcohol consumption. This guidance is based on the potential risk of liver-related adverse events. Oral forms of the medication are also directed to be taken after meals.

Q: Is Nimesulida Pasteur safe to use for older adults?

The regulatory text indicates that dose adjustment is not generally required for older adults. However, official research documents acknowledge that data specifically concerning the long-term effects and safety in the elderly population remains limited.

Q: How does Nimesulida Pasteur compare to ibuprofen regarding its mechanism of action?

The drug is classified as a preferential COX-2 inhibitor. This mechanism differs from non-selective NSAIDs, such as ibuprofen, which typically target both the COX-1 and COX-2 enzymes.

Q: What does the research say about the effectiveness of Nimesulida Pasteur for dental pain?

The medication is officially indicated for the treatment of acute pain. Research evidence has examined and supports its use for various forms of acute pain, including specific mention of dental pain in clinical summaries of the drug's effectiveness.

Q: Is it normal to feel mild stomach discomfort after taking Nimesulida Pasteur?

Official adverse event lists often include less severe gastrointestinal side effects as common occurrences. This can involve feeling mild stomach discomfort, nausea, or having diarrhea. The official guidance to take the medication after meals is related to potentially mitigating these gastrointestinal risks.

Q: How do doctors usually define the 'benefit-risk ratio' for Nimesulida Pasteur?

The drug's benefit-risk profile is addressed by specific regulatory restrictions, including the requirement that it must be used as a second-line analgesic for a maximum duration of 15 days. This strict limitation is mandated due to the specific, documented risk of serious hepatotoxicity associated with the drug.

Q: Why is it important to check drug interactions with Nimesulida Pasteur?

Official documents require checking interactions because co-administration with certain drugs can lead to an increased risk of serious outcomes. These risks include heightened bleeding risk with anticoagulants or potential toxicity due to increased exposure of drugs metabolized by the CYP2C9 enzyme.

Q: Does Nimesulida Pasteur interact with common over-the-counter cold medicines?

The official product information specifies that this medication is contraindicated for use with other NSAIDs and with Paracetamol. Since both of these are common active ingredients in many over-the-counter cold and flu preparations, caution regarding combination use is required.

Q: What is the role of Nimesulida Pasteur in managing symptoms of arthritis?

The medication is indicated for the symptomatic relief of osteoarthritis discomfort. However, its role is limited to short-term management only, as use is restricted by regulatory mandate to a maximum of 15 consecutive days.

Q: Does taking Nimesulida Pasteur with food change how it works?

While official data indicates food does not significantly reduce the overall absorption, taking the oral form after meals is intended to help reduce the potential risk of gastrointestinal side effects.

Q: What are some alternatives to Nimesulida Pasteur mentioned in clinical settings?

The regulatory requirement that the drug must be used as a second-line analgesic implies that other established non-steroidal anti-inflammatory options are considered first-line alternatives. These alternatives are typically discussed by healthcare providers.

Q: Is Nimesulida Pasteur prescribed for inflammation without pain?

The official purpose of the medication is to provide symptomatic relief by addressing the core signs of the body's defensive response: pain, inflammation, and fever. Its mechanism, which involves inhibiting inflammatory mediators, directly targets the inflammatory process.

Q: How quickly can I expect Nimesulida Pasteur to start working?

Clinical summaries suggest that the onset of pain relief is generally rapid, with effects potentially observed within approximately 15 to 30 minutes following oral intake.

Q: How long does the effect of Nimesulida Pasteur usually last?

The duration of the analgesic effect typically lasts for several hours. This duration aligns with the typical interval of administration mentioned in the official product information.

Q: Is a headache a reported side effect of Nimesulida Pasteur?

Official documents list various nervous system disorders as a class of adverse effects. While not the primary warning, official post-marketing surveillance data frequently includes headache as a reported side effect for the drug.

Q: What should be done if an interaction with Nimesulida Pasteur is suspected?

Official guidance indicates that if symptoms of a serious adverse effect, such as those related to liver injury or gastrointestinal bleeding, are suspected, immediate treatment discontinuation is required. Following this, the patient is advised to consult with a healthcare professional.

Q: Is it possible for Nimesulida Pasteur to cause drowsiness?

Regulatory documents indicate that caution is advised for patients who experience side effects such as dizziness, vertigo, or somnolence (drowsiness). This warning is included in the section concerning the drug’s potential effects on the ability to drive or operate machinery.

Q: What happens if a dose of Nimesulida Pasteur is missed?

Official Patient Information Leaflets typically state that if a dose is missed, the next dose should be taken at the regular scheduled time, and a double dose should not be taken.

Q: Are there different strengths of Nimesulida Pasteur available?

The standard unit dose defined in official regulatory documents is 100 mg Nimesulide for systemic use. The specific available forms (such as granules or tablets) and their corresponding strengths are listed in the product's official pharmaceutical information.

Q: Is Nimesulida Pasteur a narcotic or habit-forming drug?

Nimesulide is formally classified as a Non-Steroidal Anti-Inflammatory Drug (NSAID). According to official drug classifications, it is not listed as a controlled substance and is not considered a narcotic or habit-forming drug.

Q: Are there any known issues with Nimesulida Pasteur and driving or operating machinery?

Official regulatory warnings indicate that patients who experience side effects like dizziness or somnolence (drowsiness) are advised not to drive or operate heavy machinery.

Q: Can Nimesulida Pasteur cause fluid retention?

Official regulatory documents list potential side effects common to Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), including the risk of peripheral oedema, which is the clinical term for fluid retention.

Q: How is Nimesulida Pasteur eliminated from the body?

According to official pharmacokinetic information, the drug and its metabolites are eliminated from the body through both urine (renal) and faeces (biliary/faecal) routes after undergoing extensive metabolism.

How should Nimesulida Pasteur be stored and disposed of?

How to Store and Dispose of Nimesulida Pasteur?

Official regulatory documentation defines specific storage and disposal requirements for Nimesulida (Nimesulide) to ensure product stability and safety. The product must be stored locked up (P405) to restrict unauthorized access, particularly by children. To maintain the quality of the medication, the container must be kept tightly closed in a dry, cool, and well-ventilated place.


Storage and Disposal Requirement Regulatory Constraint
Access Restriction Store locked up (P405)
Environment Control Store in a dry, cool, and well-ventilated place
Disposal Dispose of contents/container to an approved waste disposal plant (P501)

Disposal must comply strictly with official regulations. The contents and container should not be released into the environment and must be managed by an approved waste disposal plant or a hazardous waste collection point.

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

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