Nilide

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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 Nilide

Nilide is a medicinal preparation whose active ingredient is Nimesulide, primarily classified as a Nonsteroidal Anti-Inflammatory Drug (NSAID). The purpose of this medication is to manage symptoms of pain, inflammation, and fever.


Property Description
Active ingredient Nimesulide
Pharmacological class Nonsteroidal Anti-Inflammatory Drug (NSAID)
Mechanism type Preferential COX-2 Inhibitor
Origin Synthetic sulfonanilide derivative
Common forms Tablets, oral suspensions, topical gel

What Type of Medicine is Nilide (Nimesulide)?

Nilide is a brand containing the active ingredient Nimesulide, a synthetic compound derived from the sulfonanilide chemical family. It is categorized as an NSAID and functions specifically as a preferential Cyclooxygenase-2 (COX-2) Inhibitor. This mechanism means Nimesulide primarily acts by targeting the enzyme (COX-2) responsible for generating the chemical signals (prostaglandins) that trigger inflammation and pain. This targeted approach helps the body suppress the chemical processes that cause discomfort.

Composition and Available Forms

The Nilide preparation is a single active ingredient product, driven entirely by the presence of Nimesulide. This substance is commonly formulated for systemic administration via oral forms, such as tablets and granules for solution. For localized relief, it is also prepared as a topical gel intended for application directly to the skin (dermal route). Nimesulide is available in various formulation types for both oral and topical use. This diverse formulation allows for flexibility in managing discomfort.

General Purpose of Nimesulide

The overall purpose of Nimesulide is to reduce the body's symptomatic response to irritation by managing pain, inflammation, and fever. By intervening in the synthesis of inflammatory messengers, the medicine achieves its general therapeutic goal of alleviating discomfort. This action is recognized for contributing to the resolution of symptoms and providing foundational symptomatic relief.

Regulatory References

  1. NIH/NCBI Bookshelf: COX Inhibitors
  2. EMA Nimesulide Referral Overview

What side effects are possible with Nilide?

Possible Side Effects and Safety Information

The safety profile for Nilide, containing the Nonsteroidal Anti-Inflammatory Drug (NSAID) Nimesulide, is structured around risks documented in official regulatory sources. Adverse reactions are classified by frequency and the body system affected, known as System-Organ Classes (SOCs).

Common adverse reactions (affecting 1 to 10 users in 100) often involve the Gastrointestinal Disorders system, including nausea, diarrhea, and vomiting. Uncommon effects include gastrointestinal haemorrhage, ulceration, and perforation, as well as hypertension and dizziness.

Serious Adverse Reactions and Key Constraints

The most significant safety focus in regulatory documents is the risk of Hepatobiliary Disorders. Cases of severe acute liver injury, including Fulminant hepatitis (which may be fatal), jaundice, and cholestasis, are documented. To mitigate this risk, the maximum duration for systemic treatment is officially restricted to 15 days.

  • Serious Skin Reactions: Rare but severe reactions such as Stevens-Johnson syndrome (SJS) and Toxic Epidermal Necrolysis (TEN) are listed.
  • Cardiovascular Risk: Like other NSAIDs, it is associated with an increased risk of cardiovascular thrombotic events (e.g., myocardial infarction, stroke).

Nimesulide is contraindicated in specific patient groups, including children under 12 years of age, individuals with severe hepatic impairment, severe renal impairment, or those with active gastrointestinal bleeding or ulceration.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documentation for Nilide (Nimesulide) establishes strict criteria for when medical help must be sought following suspected overdose or the onset of specific symptoms. Overdose manifestations commonly reported are consistent with Nonsteroidal Anti-Inflammatory Drug (NSAID) toxicity, including nausea, vomiting, epigastric pain, lethargy, and drowsiness. However, the regulatory documents also note the potential for severe, life-threatening outcomes, such as acute renal failure, coma, seizures, and severe hepatic damage, particularly in cases of large ingestion.

When Immediate Medical Attention is Required

The critical regulatory instruction centers on potential hepatic injury. Treatment must be discontinued immediately if a patient develops any signs compatible with a liver condition, such as anorexia, fatigue, dark urine, or abnormal liver function tests. Patients who develop these signs must not be rechallenged with Nilide in the future, as mandated by regulatory authorities.

Official Management Profile

Management of a Nilide overdose is restricted to symptomatic and supportive care, as no specific antidote is known for this NSAID. Procedures such as haemodialysis are explicitly noted as unlikely to be useful due to the drug's high level of plasma protein binding. Gastrointestinal decontamination using activated charcoal may be considered if the intervention can be performed within four hours of ingestion following a large or symptomatic overdose.

Therapeutic Uses of Nilide

Nilide (Nimesulide) is commonly used for symptomatic relief across clinical settings where symptoms related to physical discomfort, inflammation, and fever create noticeable physiological strain. Its application is relevant in conditions associated with acute or disruptive episodes, where short-term symptomatic assistance is needed.

Therapeutic applications include the treatment of acute pain, the symptomatic relief of painful osteoarthritis, and primary dysmenorrhoea. This medication is generally applied for easing symptom clusters that may become intense or disruptive, such as discomfort and swelling following minor musculoskeletal injuries or dental surgery. It is also considered relevant support for the cyclical cramping of primary dysmenorrhoea. The benefit is to ease discomfort and reduce local swelling, which supports general well-being during symptomatic phases.

Nilide is also relevant for managing general systemic discomfort, being commonly used to help with symptoms related to systemic imbalance, specifically elevated body temperature. This usage is pertinent in situations where fever is a pronounced manifestation, contributing to an overall easing of the symptom burden.


Quick Fact: Relief for Acute Discomfort
Nilide is generally applied when supportive symptom management is appropriate for short-term, acute manifestations of pain, swelling, or fever.

Eligibility and Restrictions for Use

Who Can and Cannot Use Nilide (Nimesulide)

The eligibility for using Nilide is strictly defined by regulatory authorities and is primarily restricted to adults and adolescents aged 12 years and older. The use of this medicine is limited to second-line treatment for a maximum duration of 15 days.

Absolute Contraindications

Official labeling lists numerous conditions that prohibit the use of Nilide. The medicine is contraindicated in children under 12 years of age and in individuals with a known hypersensitivity to Nimesulide or other Nonsteroidal Anti-Inflammatory Drugs (NSAIDs).

Contraindicated Conditions
Hepatic impairment (any degree) or history of liver reactions to Nimesulide
Severe renal impairment (creatinine clearance < 30 mL/min)
Active gastric or duodenal ulcer or history of recurrent gastrointestinal bleeding
Severe heart failure, severe coagulation disorders, or active bleeding (e.g., cerebrovascular)
Third trimester of pregnancy and breastfeeding (lactation)

Restrictions and Limitations

Nilide is not recommended for women who are in the first or second trimesters of pregnancy or who are attempting to conceive. Elderly patients may use the medicine but require appropriate clinical monitoring due to increased susceptibility to potential effects on the gastrointestinal tract, heart, kidney, and liver.

What should I know about interactions with other medicines?

Nilide Interactions with other medicines and products

The interaction profile for Nilide (Nimesulide) details restrictions and cautions based on its effects on metabolism and pharmacodynamic interactions as documented in official regulatory sources.


Officially Documented Restrictions

  • The use of Nilide is not recommended with warfarin or similar anticoagulant agents or acetylsalicylic acid due to an additive increased risk of bleeding complications. Co-administration is contraindicated in patients with severe coagulation disorders.
  • The simultaneous use of other Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) is not recommended.
  • Alcohol abuse and co-exposure to other potentially hepatotoxic substances must be strictly avoided due to the heightened risk of hepatic reactions.

Pharmacokinetic and Exposure Effects

  • Nilide is a CYP2C9 inhibitor, which may increase the plasma concentration of medicines metabolized by this enzyme, such as Lithium. The serum levels of these drugs must be monitored closely.
  • Caution is required if Nilide is used less than 24 hours before or after Methotrexate treatment, as it may increase methotrexate serum levels and potential toxicity.
  • Co-administration with Furosemide results in a documented decrease of the diuretic’s cumulative excretion and overall effect.

Pharmacodynamic and Conditional Cautions

  • Nilide may increase the nephrotoxicity of Cyclosporines due to its effect on renal prostaglandins.
  • The combination with Furosemide requires specific caution in susceptible renal or cardiac patients due to the potential for deterioration of renal function.

Mechanism of Action

Selective Enzyme Inhibition and Nociception Signaling Attenuation

Nilide's primary mechanism involves the targeted inhibition of the COX-2 enzyme, which is responsible for synthesizing chemical messengers called prostaglandins at the site of tissue activation. This action suppresses the formation of signals, such as PGE2, that modulate peripheral nerve sensitivity and hypothalamic temperature set-point, thereby modulating the physiological responses of nociception signaling and thermoregulation.


Modulation of Cellular Inflammation and Oxidative Stress

The drug also engages secondary mechanisms, acting as a modulator of immune cells like neutrophils and interfering with the release of their hydrolytic enzymes. Furthermore, Nilide acts as a scavenger of free radicals (reactive oxygen species), which are molecular byproducts of inflammation. This multi-target approach results in the suppression of localized tissue injury and contributes to the regulation of the cellular inflammatory pathway.


Combined Physiological Effect Profile

These mechanisms, acting largely at the periphery, initiate or suppress signaling sequences that collectively lead to predictable physiological adjustments. By modulating chemical and cellular responses, this action influences regulatory feedback within the targeted pathways, leading to an effect profile characterized by attenuated nociception and modified thermoregulatory output.

Dosage and Administration Information

Administration Guidelines for Nilide (Nimesulide)

These instructions outline the proper use of systemic Nilide formulations.

Administration Scope

Feature Instruction
Route of Administration Oral (tablets, granules, suspension) or Rectal (suppositories).
Standard Dosing 100 mg per dose for adults, administered systemically. Rectal suppositories are typically 200 mg.
Frequency Systemic dosage is fixed at twice daily (bid).
Timing Oral doses (tablets, granules) must be taken after meals (post cibum).

Course Duration and Restrictions

Treatment with systemic Nilide must be limited to the minimum effective dose for the shortest possible duration. The maximum duration of a systemic treatment course is strictly 15 days.

Population-Specific Use

  • Children: Systemic use is contraindicated in children under 12 years of age.
  • Adolescents (12–18 years): No dosage adjustment is typically necessary.
  • Impaired Organ Function: Use is contraindicated in patients with severe hepatic impairment and severe renal impairment (creatinine clearance < 30 ml/min).

Procedural Structure

To ensure proper use, the administration protocol requires adherence to a defined sequence: 1) the dose must be 100 mg; 2) it must be taken immediately after food; and 3) the entire duration of this twice-daily regimen must not exceed 15 consecutive days. Any powder or granules must be fully dissolved before consumption. The strict time limit and post-meal timing are mandatory components of the usage protocol.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Research into Nilide is focused on its role in managing chronic inflammatory conditions. Nilide is an agent whose properties have been investigated in relation to anti-inflammatory and analgesic outcomes.

Evaluation in Osteoarthritis (OA)

Multiple double-blind, randomized, and placebo-controlled trials have been conducted to investigate the agent in individuals with symptomatic knee or hip osteoarthritis.

  • Clinical Efficacy Studies: Early-phase research has included studies that explored variables related to joint function and pain scores. These studies involved participants receiving either the treatment or a placebo over a 12-week period. One large-scale trial reported statistically significant differences in pain scores compared to placebo.
  • Long-Term Safety Profile: Studies monitoring patients for up to six months primarily focused on collecting data regarding adverse events and tolerability.
  • Administration Studies: Research has focused on exploring administration within specific dose ranges. The effect of varied dosing schedules remains a subject of ongoing research.

Research into Combination Approaches

Research has explored whether combining Nilide with a low-dose glucocorticoid led to additional observed effects in patients with more advanced joint degeneration. Evidence remains limited regarding any definitive structural benefit, such as slowing the radiographic progression of joint space narrowing over a two-year period.

Studies also included an evaluation of Nilide in contexts such as acute, non-inflammatory pain. Severe liver disease was an exclusion criterion in studies of this treatment.

Frequently Asked Questions (FAQ)

Common questions about Nilide (FAQ)

Q: Is Nilide the same type of medicine as [similar drug name]?

A: Official regulatory documents classify Nilide as a Nonsteroidal Anti-Inflammatory Drug (NSAID). Its active ingredient, Nimesulide, functions specifically as a preferential Cyclooxygenase-2 ( COX-2) inhibitor. This difference in mechanism is a key factor that distinguishes it from other non-selective NSAIDs.

Q: What kind of medical conditions is Nilide approved for?

A: Regulatory sources authorize systemic Nilide for the treatment of symptoms related to acute pain and primary dysmenorrhea (menstrual pain). Official guidance restricts its use, noting that it should only be considered as a second-line treatment option.

Q: Are there different versions or strengths of the Nilide tablet?

A: The standard oral dose for systemic use in adults, whether in tablet or granule form, is 100 mg. Other formulations, such as suppositories for rectal administration, are available at a different standard strength, typically 200 mg.

Q: What common non-prescription pain relievers might interact with Nilide?

A: Official warnings advise against using Nilide simultaneously with other Nonsteroidal Anti-Inflammatory Drugs (NSAIDs). This caution applies to many common non-prescription pain relievers that are also classified as NSAIDs. The combination is restricted due to an increased potential for adverse effects.

Q: How is Nilide different from older medicines used for the same purpose?

A: Nilide is classified as a preferential COX-2 inhibitor. This means its targeted mechanism of action primarily suppresses the COX-2 enzyme, which is involved in inflammation. Many older NSAIDs suppress both COX-1 and COX-2 enzymes, which is the technical difference.

Q: What do studies say about the long-term use of Nilide?

A: Regulatory reviews focused on safety data concluded that systemic treatment is restricted to a maximum duration of 15 days. This limitation is in place to minimize the documented risk of serious liver problems that have been associated with its use over longer periods.

Q: What is the general success rate mentioned in the research for Nilide?

A: Clinical studies examining the medicine's effect indicate its role in the symptomatic relief of acute pain. Nilide is intended only for symptomatic therapy to reduce pain and inflammation during the course of treatment.

Q: Does taking Nilide require regular monitoring or check-ups?

A: While the need for regular check-ups is based on individual health, regulatory authorities specify that if symptoms of liver toxicity occur, treatment must be stopped immediately and medical attention sought. These symptoms can include fatigue, nausea, dark urine, or abnormal liver function tests.

Q: What are common reasons a doctor might choose Nilide over an alternative?

A: The selection of any medication is a decision made by a medical professional. Nilide’s classification as a preferential COX-2 inhibitor suggests a more targeted mechanism of action, which is a factor that may be considered when determining its role compared to non-selective NSAIDs.

Q: Is it necessary to take Nilide at a specific time of day?

A: Official administration guidelines state the dose is for twice daily use and specifically after meals (post cibum). A fixed clock-time of day is not mandated in the official instructions, but consistency with the meal timing is required.

Q: Do patients generally tolerate Nilide well?

A: The adverse reaction profile is generally comparable to other Nonsteroidal Anti-Inflammatory Drugs. Regulatory reviews noted a potentially lower occurrence of common gastrointestinal side effects than some older NSAIDs. Official safety information highlights the serious risk of liver injury.

Q: Do I need a prescription to get Nilide?

A: Systemic formulations of Nilide, including tablets, granules for suspension, and suppositories, are only available with a prescription from a licensed prescriber. This regulatory status confirms it is not available as an over-the-counter medicine.

Q: How long does it typically take to notice the expected effect of Nilide?

A: The official pharmacokinetic profile suggests a rapid onset of action. Data indicates that the maximum concentration of the medicine in the blood plasma ( C max) is generally reached within 2 to 3 hours after an oral dose.

Q: If I stop taking Nilide, will the effects wear off immediately?

A: Pharmacokinetic data describes the half-life ( T 1/2) as the time it takes for half of the drug to be eliminated from the body. For Nilide and its main active metabolite, this half-life is stated to be approximately 1.5 to 5 hours.

Q: Does Nilide affect laboratory test results?

A: The medicine is known to cause transient serum enzyme elevations in some patients. Because of this, regulatory safety information emphasizes the importance of monitoring liver function tests and discontinuing the drug if any abnormalities are detected.

Q: Does Nilide have a high potential for misuse?

A: Nilide is classified primarily as a Nonsteroidal Anti-Inflammatory Drug (NSAID). According to available regulatory data, it is not listed as a controlled substance in authorized territories.

Q: What is the physical appearance of the Nilide pill?

A: Official product information describes the granules for oral suspension as a mixture of powder and granules. The physical appearance ranges from almost white to light yellow in color and often possesses an orange odor.

Q: Is Nilide a controlled substance?

A: Regulatory data confirms that Nilide is classified as a Nonsteroidal Anti-Inflammatory Drug (NSAID). Based on the available data, it is not listed as a controlled substance.

Q: Are generic versions of Nilide available?

A: Regulatory sources confirm that the active ingredient, Nimesulide, is available in some authorized territories under both branded trade names (like Nilide) and generic medicine names.

Q: Is it normal to feel a change in appetite after starting Nilide?

A: Anorexia or loss of appetite is listed in regulatory documents as a potential symptom of liver toxicity, which is a serious adverse reaction. If this symptom occurs, regulatory guidance specifies the medicine should be discontinued immediately and consulting a medical professional.

Q: What should be done if an adverse reaction to Nilide occurs?

A: Regulatory safety measures emphasize that if symptoms of serious adverse reactions, particularly those related to liver injury (e.g., anorexia, vomiting, dark urine), occur, treatment must be immediately stopped. A medical professional should be consulted without delay.

How should Nilide be stored and disposed of?

Official Storage Requirements

Nilide (Nimesulide) must be stored under specific conditions defined in regulatory labeling to maintain its stability and effectiveness. The product must be stored at a temperature not exceeding mathbf30 C (eighty-six degrees Fahrenheit). It is essential to keep the medicine in its original container and protect it from both moisture and direct light.

Child Safety and Handling

To prevent accidental access, the medicine must be kept out of the sight and reach of children at all times. All containers should be kept tightly closed.

Disposal Instructions

Disposal of unused or expired Nilide must be executed in accordance with local regulations and through established collection programs (such as pharmacy take-back points). Regulatory guidance specifies that the product must not be released into the environment, which includes avoiding disposal via household trash, sewers, or public water systems.

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

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