Cimelide

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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 Cimelide

Property Description
Active ingredient Nimesulide
Form Tablet, capsule, granule for oral suspension, suppository
Pharmacological class Atypical Nonsteroidal Anti-inflammatory Drug (NSAID)
Common use Symptomatic relief of pain, inflammation, and fever
Origin Synthetic organic (Sulfonanilide class)

Cimelide: Classification and Identity of the Medication

Cimelide is a pharmaceutical product containing the single active ingredient, Nimesulide (INN). It is scientifically classified as an Atypical Nonsteroidal Anti-inflammatory Drug (NSAID), placing it within the broader categories of analgesic (pain-relieving) and antipyretic (fever-reducing) medicines. Nimesulide belongs to the sulfonanilide chemical class and is a synthetic organic compound requiring a prescription. Nimesulide is recognized for its relatively selective inhibitory effect on the COX-2 enzyme, a characteristic of its pharmacological profile.

Composition and Available Pharmaceutical Forms

The medicine consists of the active substance Nimesulide, combined with necessary pharmaceutical excipients that determine the preparation's final format. Cimelide is offered in several common dosage forms suitable for administration via the oral and rectal routes. These preparations frequently include the standard tablet, capsule, and granule for oral suspension, as well as suppository formulations, providing versatility for clinical needs. The drug's chemical identity and structure contribute to its generally recognized fast onset of action compared to some other NSAIDs.

What is the General Purpose of Nimesulide?

The general purpose of Cimelide is to provide comprehensive symptomatic relief by addressing the core manifestations of the inflammatory response. The drug achieves this through a multifactorial mode of action where its core benefit is the simultaneous combination of its three properties: diminishing pain, reducing inflammatory swelling, and normalizing elevated body temperature. It is typically used to alleviate discomfort associated with conditions requiring general symptomatic control.

What side effects are possible with Cimelide?

Possible Side Effects and Safety Information

Official regulatory documents emphasize that the primary safety concern associated with Cimelide is the risk of hepatotoxicity (liver injury). This risk is serious, with reports of severe hepatic reactions, including fulminant hepatic failure and cases requiring liver transplantation, which have led to regulatory actions.


Adverse Reaction Scope

The frequency of side effects is classified based on clinical data. Common reactions (affecting 1 to 10 in every 100 patients) often involve the gastrointestinal system and include nausea and vertigo. Less common effects (affecting 1 to 10 in every 1,000 patients) may involve vomiting, headache, or visual disturbances. Serious adverse reactions noted in regulatory sources are focused on the Hepatobiliary System (liver) and include reports of necrotizing fasciitis.


Safety Restrictions and Limitations

The risk of liver toxicity is directly related to exposure; therefore, official safety profiles impose a strict maximum treatment duration, typically limiting use to no more than 15 days.

Contraindications formally restrict the use of Cimelide in specific populations and conditions. The medicine is contraindicated in children under 12 years of age, during pregnancy, and in patients with pre-existing liver problems (such as hepatic failure or active liver disease) or severe chronic kidney disease. Patients must immediately discontinue treatment if they experience any symptoms suggestive of liver problems, such as anorexia, abdominal pain, or dark urine.

Overdose and Emergency Response

Overdose Manifestations

Officially documented signs of acute Cimelide (Nimesulide) overdose are typically limited to symptoms such as lethargy, drowsiness, nausea, vomiting, and epigastric pain. While these manifestations are often reversible with supportive care, more severe and potentially life-threatening systemic outcomes may occur. Rare but serious complications documented in regulatory labeling include gastrointestinal bleeding, hypertension, acute renal failure, respiratory depression, and coma. Anaphylactoid reactions have also been reported in the context of NSAID exposure and may manifest following an overdose.

When to Seek Emergency Help

It is required that individuals seek immediate medical attention if an overdose is suspected or has occurred. Urgent professional clinical assessment is mandatory due to the risk of severe complications, such as central nervous system depression, kidney failure, or serious bleeding. This necessity for immediate care is further underscored by the fact that regulatory documents state there is no specific antidote known for Nimesulide.

Required Management and Monitoring

Management is defined strictly as symptomatic and supportive care. Close clinical monitoring is necessary, particularly for the potential development of severe effects. For cases of potentially massive overdose or when presentation occurs within four hours of ingestion, procedures such as gastric lavage or administration of activated charcoal may be required. Patients with pre-existing severe renal, hepatic, or cardiac impairment are considered to be at an elevated risk for more severe overdose complications.

Therapeutic Uses of Cimelide

What Cimelide Treats: Main Uses and Benefits

Cimelide is a medication used to provide symptomatic relief across multiple therapeutic domains characterized by symptoms associated with acute or episodic changes. It is commonly used in clinical settings marked by heightened patient distress, where temporary assistance in symptom stabilization is important.

The medication is applied in addressing acute pain and localized inflammation, and is also used for the symptomatic relief of painful osteoarthritis and primary dysmenorrhoea (severe menstrual cramps).

“This medication is primarily relevant when supportive symptom management is appropriate, helping to ease the overall burden of symptoms in acute situations.”

This supportive therapeutic role means it assists with maintaining functional stability when symptoms become more noticeable, offering the patient support during difficult episodes by easing distress. It also supports the patient in situations involving symptoms related to systemic imbalance, and is applied in addressing elevated body temperature (fever).


Quick Fact: Relief for Acute Pain

Cimelide is applied in scenarios where additional management of discomfort is required, for mild to moderate pain stemming from inflammation or injury.

Regulatory References

  1. European Medicines Agency's official documentation

Eligibility and Restrictions for Use

Official Population Eligibility Rules

Official regulatory documentation strictly defines the eligible population for Cimelide (Nimesulide) by imposing mandatory exclusions and restrictions. Use of this medicine is absolutely contraindicated in several populations due to safety concerns, particularly the risk of liver injury.

Category Regulatory Status Rule Summary
Pediatric Use Contraindicated Children under 12 years of age must not use the medicine.
Hepatic Function Contraindicated Patients with severe hepatic impairment or active liver disease are excluded.
Renal Function Contraindicated Use is prohibited in patients with severe renal impairment (Creatinine Clearance < 30 mL/min).
Pregnancy Contraindicated Prohibited during the third trimester and not recommended in the first two trimesters.
Treatment Duration Restricted Use is limited to a maximum of 15 consecutive days for all eligible patients.

Eligible patients include adolescents and adults over 12 years of age, provided they do not have any contraindications listed above, such as a history of gastrointestinal ulceration, severe heart failure, or known hypersensitivity to the drug. The medicine is often restricted to second-line treatment.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents describe clinically significant interactions resulting primarily from the effects of co-administered medicines on the plasma concentration of Cimelide and its influence on other therapies. These interactions are categorized by their severity and the mandated management requirements.


Interaction Classifications and Restrictions

Interaction Domain Mechanism of Action (as stated in regulatory sources) Regulatory Constraint
Strong CYP3A4 Inhibitors Increases Cimelide plasma concentration (exposure) due to inhibition of metabolism. Contraindicated: Co-administration is prohibited.
Strong CYP3A4 Inducers Decreases Cimelide plasma concentration (exposure) due to induction of metabolism. Avoid Concomitant Use: Risk of reduced efficacy.
P-glycoprotein (P-gp) Modulators Affects absorption and disposition of Cimelide by altering drug transporter activity. Requires Caution/Monitoring: Dose adjustments may be necessary.
QTc-prolonging Agents Potential for additive pharmacodynamic effect on cardiac repolarization. Avoid Concomitant Use: Risk of serious ventricular arrhythmias.
CYP3A4 Substrates Cimelide is a mild inhibitor of CYP3A4, increasing exposure of co-administered substrates. Requires Monitoring: Dose adjustment of the co-administered drug may be necessary.

Interaction-Related Conditions

Timing-based constraints are required when initiating Cimelide following discontinuation of strong CYP3A4 inducers, mandating a specific washout period to prevent sub-therapeutic drug levels. The official labeling specifies that concomitant use of other medicinal products that significantly alter the exposure of Cimelide, particularly inhibitors, requires hepatic function monitoring in patients with pre-existing liver impairment.

Mechanism of Action

Selective COX-2 Enzyme Modulation

Cimelide's primary mechanism involves acting as a selective inhibitor of cyclooxygenase-2 (COX-2). By engaging this enzyme, the drug interrupts the eicosanoid cascade at an early molecular step, specifically reducing the synthesis of pro-inflammatory prostaglandins. This action results in the modulation of signaling pathway activity driven by excessive mediator concentrations.


Regulation of Inflammatory Mediators

The compound engages mechanisms that influence other signaling processes beyond the COX-2 pathway. This includes inhibiting the release of proteolytic enzymes, such as matrix metalloproteinases, and modulating the activity of free radicals and reactive oxygen species (ROS) within cells. This sequence influences the concentration and downstream effects of diverse inflammatory mediators, contributing to generalized pathway adjustment.


Modulation of Histamine Release

A distinct mechanistic domain involves the drug's effect on systems where specific transmitters, such as histamine, dominate. Cimelide decreases the release of histamine from tissue mast cells and basophils. This interaction alters the local signaling environment and subsequent physiological consequences within the targeted system.

Dosage and Administration Information

The usage of Cimelide (Nimesulide) involves specific parameters regarding the route of administration, dosage regimen, frequency, and maximum duration of use. The medication is for systemic use via the oral and rectal routes, typically as a 100 mg unit dose, and for localized use as a topical 3% w/w gel. Clinical use emphasizes the principle of using the minimum effective dose for the shortest possible duration.


The standard protocol establishes a maximum systemic daily dose of 200 mg, administered as 100 mg taken twice daily (bid). For oral forms, the medication is taken after a meal (post prandially). This systemic treatment is subject to a strict maximum duration of 15 consecutive days for short-term clinical application.


Administration Scope: Key Parameters

Property Administration Instruction
Dosing Schedule 100 mg per systemic dose, max 200 mg daily.
Frequency Twice daily for systemic use.
Administration Timing Oral dose must be taken after a meal.
Duration Constraint Maximum 15 consecutive days for systemic treatment.
Population Rules No dose adjustment typically required for older adults or adolescents (12–18 years).

This comprehensive structure ensures the medication is utilized within the precise parameters and duration established for the medication.

Recent Clinical Evidence

Evidence for Symptomatic Patterns in Acute Pain

Research exploring Cimelide was conducted in acute pain settings, primarily using short-term Randomized Controlled Trials (RCTs). These studies monitored outcomes related to physical discomfort, examining pain intensity change and the time required for symptomatic modification. Findings describe patterns observed in these studies but are limited to very short-term observation periods, typically not exceeding 15 days. Long-term effects are not fully established, and results apply only to the populations studied.


Evidence for Symptomatic Patterns in Primary Dysmenorrhoea

Cimelide was studied in research contexts examining pain associated with severe menstrual cramps (Primary Dysmenorrhoea). RCTs focused on Adult Women, tracking patient-reported outcomes describing perceived discomfort during acute episodes. The follow-up durations were limited to one or two menstrual cycles. Consequently, the data for continuous use are still emerging, and there is a lack of evidence for long-term outcomes.


Research Examining Symptomatic Patterns in Osteoarthritis

Research exploring short-term symptom changes related to painful osteoarthritis was evaluated in trials that recruited Adults. These studies examined outcomes reflecting daily functioning or activity level and physical discomfort, structured for periods of up to four weeks. However, the trial evidence structure reflects limited information for long-term outcomes, given the chronic nature of the condition.


Key Limitations and Areas of Uncertainty in the Evidence

The evidence base contains several research limitation frames. The primary constraint is the short-term nature of the majority of studies, which means long-term effects are not fully established. Research exploring Adolescents and Older Adults was conducted, but follow-up durations remain limited. Data for certain groups, such as pregnant populations or patients with significant comorbidity, is limited in the existing evidence landscape.

Frequently Asked Questions (FAQ)

Common questions about Cimelide (FAQ)


Q: What should I do if I miss a dose of Cimelide?

Official product information generally states that if a dose is missed, it should be taken as soon as it is remembered. However, if it is almost time for the next scheduled dose, the missed dose is typically skipped. Product labeling advises against ever doubling the dose to make up for a missed one.


Q: What should I do if I accidentally take more than the recommended dose?

Official product information indicates that medical attention should be sought immediately in the event of a suspected overdose. Symptoms following an acute overdose of this type of medicine are commonly described as limited to mild effects such as drowsiness, nausea, vomiting, or stomach pain. Supportive care and symptomatic treatment are generally indicated by healthcare professionals.


Q: Is there a liquid form of Cimelide for people who have trouble swallowing pills?

Nimesulide, the active ingredient in Cimelide, is listed in official labeling as being manufactured in various pharmaceutical forms. These forms typically include tablets, capsules, and granules for oral suspension, as well as suppositories. The availability of specific dosage forms may vary depending on the product and geographic region.


Q: What are the specific types of pain Cimelide is used to treat?

Regulatory documents state that this medicine is indicated for the symptomatic treatment of acute pain, painful osteoarthritis, and primary dysmenorrhoea (severe menstrual pain). Regulatory labeling notes that its use is generally restricted to second-line treatment, which means it is often considered after other treatment options have proven ineffective.

How should Cimelide be stored and disposed of?

Storage Requirements

Official regulatory information requires that Cimelide (Nimesulide) be stored under controlled conditions to maintain its quality. The medication must be stored at a temperature below 30 C (86 F) in a cool and dry place. The product should be protected from direct heat and sunlight and kept in its original container with the container kept tightly closed.

Child Safety and Handling

It is a mandatory storage requirement that the medicine be stored out of the sight and reach of children and pets.

Disposal Instructions

Expired or unused Cimelide must be disposed of properly. The safest option is to utilize a community drug take-back program or mail-back collection envelope. If no take-back program is available, the product may be disposed of in the household trash only after being mixed with an undesirable substance (such as dirt or used coffee grounds) and sealed in a container to prevent accidental exposure or misuse. Regulatory guidelines caution against flushing most medicines down the toilet.

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

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