Cefim-3

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Medically reviewed

Marina Burgos

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 Cefim-3

Quick Facts: Cefim-3

Property Description
Active Ingredient Cefixime
Form Oral (Capsule, Tablet, Powder for Suspension)
Pharmacological Class Cephalosporin Antibiotic (Third-Generation)
Rx Status Prescription-only
Origin Semisynthetic

What is Cefim-3 and What Is Its Active Ingredient?

Cefim-3 is a prescription-only medicinal product whose active component is Cefixime, a clinically recognized antibiotic used to fight bacterial infections throughout the body. This drug is a semisynthetic third-generation cephalosporin, which distinguishes it from older antibiotic classes due to its enhanced stability against certain bacterial defense mechanisms. Cefixime acts by inhibiting bacterial cell wall synthesis. This classification is particularly noted for its reliable activity profile in treating infections caused by susceptible organisms, such as those responsible for certain ear, throat, or urinary tract issues.


What Type of Antibiotic is Cefim-3 Used For?

Cefim-3 is fundamentally a bactericidal agent, meaning its general purpose is to directly kill the bacterial pathogens causing an infection, rather than merely slowing their growth. This goal is achieved because Cefixime interferes with the critical synthesis of the bacterial cell wall, leading to the structural breakdown and death of the organism. Cefixime is highly resistant to certain bacterial enzymes known as beta-lactamases. This ensures that Cefim-3 maintains its effectiveness even against some resistant strains that can often inactivate older penicillin-based antibiotics.


How Is Cefim-3 Packaged and Administered?

Cefim-3 is an orally-active medication, designed to be taken by mouth for systemic absorption and delivery of the antibacterial action. The availability of the product in multiple dosage forms—including capsules, tablets, and a powder for oral suspension—is a key feature, allowing healthcare providers flexibility, particularly in dosing children. The oral suspension form is often flavored to enhance palatability and support adherence among pediatric patients. The high-level composition always features the Cefixime component alongside inert excipients necessary to create the final, stable, and orally deliverable presentation.

Regulatory References

  1. Cefixime: MedlinePlus Drug Information
  2. NIH: Beta-Lactam Antibiotics (NCBI Bookshelf)

What side effects are possible with Cefim-3?

Possible Side Effects and Safety Information

The official safety profile of Cefim-3, which contains Cefixime, is primarily characterized by effects on the Gastrointestinal System. Diarrhea is the most frequently reported adverse reaction and is often categorized as Very Common or Common in regulatory documents, alongside abdominal pain, nausea, and dyspepsia.


System-Specific Adverse Reactions

Adverse reactions are formally grouped by the body system affected. Beyond the gastrointestinal effects, common reactions may involve the Nervous System (e.g., headache, dizziness) and the Skin and Subcutaneous Tissue (e.g., rash, pruritus), which are often classified as Uncommon.

Serious Adverse Reactions

Regulatory labeling highlights specific, rare, but clinically important adverse effects. These Serious Adverse Reactions (SARs) include immediate, severe Anaphylactic Reactions and life-threatening skin conditions such as Stevens-Johnson Syndrome (SJS). Furthermore, use of the antibiotic carries the risk of Clostridium difficile-Associated Diarrhea (CDAD), which may manifest during or up to two months following treatment.

Safety Considerations and Restrictions

Safety constraints and limitations are defined by regulatory authorities for specific circumstances. Caution is required in patients with pre-existing Renal Impairment, as drug clearance is reduced, which can increase the risk of neurotoxicity and may prolong prothrombin time. Cefim-3 is also contraindicated in individuals with a known severe hypersensitivity to Cefixime, other cephalosporin antibiotics, or severe, immediate hypersensitivity to penicillin or other beta-lactams. Additionally, Cefixime can cause false positive results in certain copper sulfate-based urine glucose tests.

Overdose and Emergency Response

Overdose and When to Seek Help

The officially documented profile for Cefim-3 (Cefixime) overdose is largely based on the risks associated with high systemic concentrations of cephalosporin antibiotics, as specific experience with acute overdose at standard high doses is limited. The most serious potential outcomes documented in regulatory sources involve the Central Nervous System (CNS) and the renal system.

High exposure may manifest as encephalopathy, including signs like confusion, impaired consciousness, or movement disorders. The most significant severe outcome documented is the potential for seizures (convulsions) and acute renal failure, indicated by transient elevations in BUN or creatinine. This risk of seizures is notably higher in individuals with pre-existing renal impairment if the dosage is not properly adjusted.


Required Emergency Actions

Immediate medical attention must be sought if an overdose is suspected or if severe signs appear. Urgent help is required if the person experiences a seizure, collapse, or cannot be awakened.

Management is strictly symptomatic and supportive, as no specific antidote exists for Cefim-3. While gastric lavage may be indicated to reduce absorption, regulatory information confirms that Cefixime is not removed in significant quantities by dialysis.

Therapeutic Uses of Cefim-3

What Cefim-3 Treats: Main Uses and Benefits

Cefim-3, which contains cefixime, is applied in addressing bacterial infections. This medicine is relevant when supportive symptom management is appropriate for conditions characterized by periods of heightened symptoms across several systems. It is commonly used to help with acute or episodic manifestations affecting the middle ear, throat and tonsils, and certain exacerbations of chronic lung issues.

Therapeutic Areas and Symptom Relief

It is applied in addressing situations involving certain distressing symptoms linked to infections, such as those that interfere with daily comfort. The medication is considered relevant for easing systemic discomfort in the context of uncomplicated infections of the urinary tract, as well as uncomplicated gonorrhea. The primary benefit is that it helps improve day-to-day comfort during symptomatic periods by addressing the bacterial cause of the distress. The use of this medicine contributes to easing the overall symptom load.

Quick Fact: Supports Management of Symptoms related to physical discomfort

Regulatory References

  1. Health Canada Product Monograph on Cefixime

Eligibility and Restrictions for Use

Who Can and Cannot Use Cefim-3 (Cefixime)

Eligibility for Cefim-3 is strictly determined by official regulatory documents, primarily based on known allergies, age, and physiological status.

Absolute Non-Eligibility (Contraindications)

Cefim-3 is contraindicated and must not be used in individuals with a known hypersensitivity or allergy to Cefixime itself or to any antibiotic belonging to the cephalosporin class.

Populations Requiring Conditional Use

Use of Cefim-3 requires caution or special consideration in several patient groups:

  • Penicillin Allergy History: Caution is required due to the potential for cross-sensitivity reactions with penicillin-class antibiotics.
  • Renal Impairment: Patients with reduced kidney function (Creatinine Clearance < 60 mL/min) require a dose adjustment as mandated by regulatory labeling.
  • History of Colitis/Gastrointestinal Disease: Use is advised with caution.

Age and Developmental Status

  • Infants: The safety and effectiveness of Cefim-3 have not been established in children younger than six months of age.
  • Adults and Children: The medicine is generally eligible for use in individuals six months of age and older who do not have contraindications.

Pregnancy and Breastfeeding Status

  • Pregnancy: Use is recommended only if clearly needed (Category B).
  • Breastfeeding: It is unknown if the drug is excreted in human milk; regulatory documents recommend considering the temporary discontinuation of nursing during treatment.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Cefim-3 (Cefixime) has officially documented interaction patterns that primarily relate to changes in drug exposure and pharmacodynamic effects on coagulation, as confirmed by regulatory authorities.

Documented Pharmacokinetic and Pharmacodynamic Interactions

Interacting Entity/Category Official Interaction Outcome Type of Interaction
Warfarin and Anticoagulants Reports of increased prothrombin time, which may occur with or without subsequent clinical bleeding. Pharmacodynamic
Probenecid Increases Cefixime plasma concentration (AUC/Cmax) due to a documented decrease in Cefixime’s renal clearance. Pharmacokinetic
Carbamazepine Reports of elevated Carbamazepine levels when co-administered. Pharmacokinetic
Salicylates (High Dose) May result in a 20–25% decrease in Cefixime plasma concentration and exposure (AUC/Cmax). Pharmacokinetic
Estrogen-Containing Medications Potential for reduced effectiveness of the estrogen component (e.g., oral contraceptives). Pharmacokinetic

Regulatory Restrictions and Population Notes

The antibiotic action of Cefixime is classified as a serious interaction risk with certain live bacterial vaccines (such as BCG, Cholera, and Typhoid vaccines), and their concurrent use is generally restricted. The documented risk of increased prothrombin time when combining Cefim-3 with anticoagulants is noted as a particular consideration for patients with renal impairment, hepatic impairment, or a poor nutritional state. Food has no effect on Cefixime absorption, and no mandatory timing separation rules are explicitly documented.

Mechanism of Action

How Cefim-3 Works: Mechanism of Action

Cefim-3 exerts its action by targeting the essential structure-building process of susceptible bacterial cells. The drug functions as an irreversible inhibitor of bacterial enzymes known as penicillin-binding proteins (PBPs) . These transpeptidase enzymes are critical for the final stage of peptidoglycan synthesis, which involves cross-linking to construct the rigid bacterial cell wall.

By covalently binding to the active site of the PBPs, Cefim-3 inactivates the enzymes, preventing the formation of stable peptidoglycan strands. This immediate mechanistic consequence leads to the rapid development of a structurally defective cell wall. This failure to maintain integrity causes the bacterial cell to become highly susceptible to internal osmotic pressure, triggering a cascade of cellular disruption known as lysis (cell rupture). The resulting physiological effect is the direct, targeted bactericidal destruction of the multiplying bacterial population.

Dosage and Administration Information

Official Administration Guidelines for Cefim-3

Cefim-3, which contains the active substance Cefixime, is an orally administered medicine available in various formulations, including tablets, capsules, and a powder for oral suspension. The official instructions for use govern the route, dosing, frequency, and duration of the course.


Standard Regimens and Frequency

For most adult use patterns, the standard total dose is 400 mg per day. This may be administered as a single dose once daily or divided into 200 mg every 12 hours, with the total dose not typically exceeding the 400 mg daily maximum. Cefim-3 tablets and capsules may be taken without regard to food.

Duration and Contextual Use

The typical treatment course lasts between 7 and 14 days. However, for specific infections caused by Streptococcus pyogenes (Group A Strep), the duration must be for a minimum of 10 consecutive days to ensure proper use.


Population-Specific Dosing

Specific modifications are utilized for certain groups. For pediatric patients who are six months of age or older, the dosage is calculated at 8 mg/kg/day using the oral suspension, which is often given as a single daily dose. For adult patients with severe renal impairment (creatinine clearance less than 20 mL/min), the dose must be reduced and should not exceed 200 mg once daily.

Preparation and Handling Constraints

The powder for suspension requires shaking well before each use. It is a procedural requirement that the reconstituted suspension be discarded after 14 days. Furthermore, the tablet and suspension forms are not bioequivalent and should not be substituted for one another when treating certain indications.

Recent Clinical Evidence

Cefim-3: Overview of Studies

Cefim-3 (Cefixime) research has explored its application in treating specific acute bacterial infections. The available evidence, largely from Randomized Controlled Trials (RCTs) and comparative studies, focuses on short-term outcomes measured during periods of heightened symptom activity.


Evidence by Clinical Context

Research was conducted across several conditions marked by acute or disruptive episodes:

  • Acute Middle Ear Infections (AOM): Research was evaluated in pediatric study populations, monitoring measurements of clinical status and pathogen clearance. The evidence level is described as High.
  • Throat and Tonsil Infections: Studies examined short-term outcomes related to physical discomfort, providing insight into symptom change in both adults and children. The evidence level is designated as Moderate.
  • Acute Flare-ups of Chronic Lung Issues (AECB): Cefim-3 was observed in studies examining adults, tracking measurements of clinical status and pathogen clearance over defined time intervals. The evidence level is considered Moderate.
  • Uncomplicated Urinary Tract/Gonorrhea Infections: Trials and systematic reviews have studied its use for these infections. For uncomplicated gonorrhea, the evidence level is described as High.

Study Limitations and Uncertainties

Research provides context but not individual predictions. The majority of studies are focused on the acute phase of infection, meaning the follow-up durations were limited. As a result, long-term effects are not fully established, and there is limited data on the risk of an infection recurring months after the study period.

Research highlights that data for certain groups remain insufficient. For instance, some trials consist of non-comparative studies, limiting the ability to relate findings directly to every standard treatment. Additionally, the measured outcomes are influenced by local bacterial resistance patterns, which can evolve over time.

Key Studies & References

  1. Effectiveness and tolerance of cefixime in comparison with penicillin V in bacterial pharyngitis and tonsillitis in children. Cefixime Study Group
  2. Is cefixime (Cefixime) effective for treating urinary tract infections (UTIs)? - Evidence on Efficacy and Limitations

Frequently Asked Questions (FAQ)

Common questions about Cefim-3 (FAQ)


Q: Can I take Cefim-3 with dairy products like milk or yogurt?

According to the official product information, Cefim-3 tablets and capsules can be taken without regard to food. Regulatory documents do not specifically mention any restrictions or mandatory timing separation rules when taking this medication with dairy products such as milk or yogurt.


Q: Does Cefim-3 interact with birth control pills?

Official drug labeling indicates that Cefim-3 may have the potential to reduce the effectiveness of estrogen-containing medications, which includes oral contraceptives (birth control pills). A healthcare provider should be consulted with any concerns regarding the efficacy of hormonal products during treatment.


Q: What are the serious side effects of Cefim-3?

While side effects are typically mild, serious adverse reactions have been reported in official documents. These include severe skin reactions like Stevens-Johnson Syndrome (SJS), acute kidney failure, and a condition known as Clostridium difficile-Associated Diarrhea (CDAD). Symptoms of a severe reaction are typically evaluated by a healthcare professional.


Q: Can I drink alcohol while taking Cefim-3?

Official drug product labeling from regulatory authorities does not document a specific, harmful interaction between Cefim-3 (Cefixime) and the consumption of alcohol. This means there is no official restriction or warning regarding concurrent use in the prescribing information.


Q: What should I do if I miss a dose of Cefim-3?

Official patient instructions suggest that a missed dose may be taken as soon as it is remembered. However, if the next scheduled dose is near, the missed dose is typically skipped to avoid taking double the prescribed amount.


Q: Is Cefim-3 effective for all types of bacterial infections?

Cefim-3 is not indicated for the treatment of all bacterial infections. Official product information states that it is only indicated for the treatment of infections caused by susceptible strains of specific microorganisms. Using it incorrectly may lead to the overgrowth of non-susceptible organisms.

How should Cefim-3 be stored and disposed of?

How to Store and Dispose of Cefim-3

The storage and disposal requirements for Cefim-3 (Cefixime) are strictly defined by regulatory labeling and depend on the product form.

Storage and Stability

Product Form Storage Requirement
Dry Product (Capsules/Powder) Store at a temperature not exceeding 30°C and protect from light and moisture.
Reconstituted Suspension Stable for 14 days after mixing. May be stored at room temperature or in the refrigerator (2°C to 8°C).

The medication must be kept in its original, tightly closed container and must be kept from freezing in either form. As a safety requirement, Cefim-3 must be kept out of the sight and reach of children.

Disposal Instructions

Any unused portion of the liquid suspension must be discarded after 14 days from reconstitution. Disposal of outdated or no longer needed Cefim-3 must follow local regulations; medicines should not be disposed of via wastewater.

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

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