Cefuzime

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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 Cefuzime

Quick Facts

Property Description
Active ingredient Cefuroxime
Form Tablet, Oral Suspension, Powder for Injection/Infusion
Pharmacological class Second-generation cephalosporin antibiotic
Common purpose Elimination of susceptible bacterial infections
Origin Semi-synthetic

Cefuzime: A Second-Generation Cephalosporin Antibiotic

Cefuzime is a prescription-only medicine whose active component is the substance Cefuroxime, placing it within the broad category of antibiotics. It is definitively classified as a beta-lactam antibiotic and, more specifically, a second-generation cephalosporin. Cefuroxime is used to treat a wide variety of bacterial infections, such as those impacting the skin or the respiratory system. This classification means the medicine is specifically designed to eliminate susceptible bacterial pathogens throughout the body, providing a crucial, broad-spectrum anti-infective agent for clinical use. Cefuroxime's second-generation status is clinically recognized for offering an expanded range of bacterial coverage compared to older cephalosporins.

Composition, Origin, and Available Forms

The active ingredient, Cefuroxime, is a semi-synthetic compound, meaning it is derived from a natural substance that has been chemically modified to enhance its therapeutic properties. As a single-component product, Cefuzime is available in forms suitable for both parenteral (injection) and oral administration. The primary dosage forms include film-coated tablets and granules for oral suspension (containing Cefuroxime axetil), as well as powder for solution for injection or infusion (containing Cefuroxime sodium). This structure gives it a predictable spectrum of activity against key pathogens, distinguishing it by its optimized activity profile.

How Cefuroxime Delivers Its Anti-Bacterial Purpose

Cefuzime functions by a bactericidal mechanism, meaning it actively and directly kills the target bacteria. This is accomplished by interfering with a structural necessity for the pathogen: the formation of its protective cell wall. The essential general benefit of this direct mechanism is the swift and decisive elimination of bacterial threats, serving the overall purpose of resolving systemic infections. This effective anti-bacterial action is the core reason for the drug's designation as an essential medicine.

Regulatory References

  1. Cefuroxime: MedlinePlus Drug Information

What side effects are possible with Cefuzime?

Cefuzime: Possible side effects and safety information

Adverse Reaction Profile

Cefuzime (cefuroxime axetil) is associated with adverse reactions primarily affecting the gastrointestinal tract, blood and lymphatic systems, and skin. Side effects are classified by frequency based on clinical trial data and post-marketing surveillance:

Classification Examples of Reactions
Common (1% to < 10%) Diarrhea, nausea, vomiting, dizziness, headache, Candida overgrowth, eosinophilia, transient increases in liver enzyme levels (AST/ALT).
Uncommon (0.1% to < 1%) Leukopenia, thrombocytopenia, positive Coombs' test.
Not Known (Post-marketing) Haemolytic anaemia, pseudomembranous colitis, seizures, serious hypersensitivity reactions, severe cutaneous adverse reactions (SCARs).

Serious and Clinically Significant Reactions

Treatment carries a risk of serious hypersensitivity reactions (including anaphylaxis), which can be fatal. Severe cutaneous adverse reactions (SCARs), such as Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS), have been reported. The potential for Clostridioides difficile-associated diarrhea (CDAD) exists, which can range from mild diarrhea to fatal colitis, and can occur even months after the medication is discontinued.

Safety Considerations and Restrictions

  • Hypersensitivity: The medication is contraindicated in patients with a history of severe hypersensitivity to any beta-lactam antibacterial agent (e.g., penicillins or cephalosporins).
  • Renal Function: Dose adjustment is necessary for patients with impaired renal function, as the drug is primarily eliminated by the kidneys.
  • Microbial Overgrowth: Prolonged use may result in the overgrowth of non-susceptible organisms, including Candida and C. difficile.
  • Phenylketonuria (PKU): Certain oral suspension formulations contain phenylalanine and must be used with caution in patients with PKU.
  • Interference with Tests: Cefuzime may cause false-positive results in certain urine glucose tests and false-negative results in certain blood glucose tests. Bioavailability of the tablet formulation is increased when taken with food.

Overdose and Emergency Response

Overdose and When to Seek Help

The information regarding Cefuzime (cefuroxime) overdose is derived from official governmental regulatory documents, which address the potential risks and required emergency actions.

Documented Overdose Profile

Official regulatory labeling classifies the primary risk of an overdose of cephalosporin antibiotics, including Cefuzime, as Central Nervous System (CNS) toxicity.

Potential Overdose Symptoms:

System Affected Manifestation
Central Nervous System Cerebral irritation, which can lead to convulsions (seizures).

Emergency Response and Management

If an overdose is suspected, urgent medical attention is required immediately, even if the patient appears asymptomatic or only experiences mild symptoms. This is due to the potential for serious, delayed effects such as convulsions.

The regulatory profile specifies that for the management of an overdose, high serum levels of cefuroxime can be reduced. This procedural instruction indicates that the drug can be removed from the bloodstream using standard medical interventions:

  • Hemodialysis
  • Peritoneal dialysis

Timely medical intervention is critical for managing the potential for severe CNS effects following an overdosage of Cefuzime.

Therapeutic Uses of Cefuzime

Quick Facts

  • Treats: Bacterial infections of the lower respiratory tract
  • Treats: Acute exacerbations of chronic bronchitis
  • Treats: Uncomplicated skin and soft-tissue infections
  • Treats: Uncomplicated urinary tract infections
  • Treats: Early Lyme disease

Cefuzime is a prescription medication utilized in therapeutic settings to manage a variety of infections caused by susceptible bacteria. Its approved applications focus on addressing specific conditions where a bacterial origin is established or strongly suspected.

Key therapeutic domains include the treatment of lower respiratory tract infections, such as certain types of pneumonia and acute bacterial exacerbations of chronic bronchitis. The medication is also indicated to manage uncomplicated skin and skin-structure infections, as well as uncomplicated urinary tract infections (UTIs).

Additionally, Cefuzime serves as a therapy option for early Lyme disease (erythema migrans) in appropriate patient populations. It may also be used in the treatment of acute bacterial otitis media (ear infection) and acute bacterial maxillary sinusitis.

For a full and detailed list of uses, patients and caregivers should consult the professional drug labeling. Discussing these potential benefits with a healthcare professional is crucial for a personalized care approach.

Regulatory References

  1. NIH MedlinePlus guidance on Cefuroxime

Eligibility and Restrictions for Use

Who Can and Cannot Use Cefuzime?

This section outlines the official population eligibility rules for Cefuzime (Cefuroxime) as defined by government regulatory documents. Eligibility is determined by absolute prohibitions and specific age or medical conditions.


Absolute Contraindications

Cefuzime is contraindicated and must not be used by individuals who meet the following criteria:

  • Patients with a known hypersensitivity to the active substance, Cefuroxime, or to any component of the formulation.
  • Patients with a known allergy to any cephalosporin antibiotic.
  • Patients with a history of a severe allergic reaction (such as anaphylaxis) to any other beta-lactam antibacterial agent (e.g., penicillins).

Age and Condition Restrictions

  • Pediatric Use: Safety and effectiveness for the oral suspension form are not established in patients under 3 months of age. Use is permitted for older children and adults.
  • Renal Impairment: Eligibility is restricted and use is conditional for patients with significantly impaired renal function (Creatinine Clearance < 30 mL/min).
  • Pregnancy and Lactation: Use during pregnancy is generally not recommended unless the benefit is determined to outweigh the risk. Cefuroxime is excreted in breast milk in low concentrations, requiring caution during lactation.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Cefuzime's official interaction profile is defined by regulatory documents based on effects on drug clearance, absorption, and pharmacodynamic outcomes. All statements reflect information documented in government prescribing labels.

Pharmacokinetic and Timing Restrictions

Co-administration with Probenecid is not recommended as it significantly inhibits the renal tubular secretion of Cefuroxime. This interaction is officially documented to increase the drug's systemic exposure, including a higher peak serum level and a prolonged elimination half-life. Substances that reduce gastric acidity, such as antacids, H2-antagonists, and Proton Pump Inhibitors, are documented to lower the bioavailability of Cefuzime's oral form. To manage this interaction, a mandatory time separation rule is specified: administer these acidity-reducing medicines at least two hours before or two hours after Cefuzime oral tablets or suspension. Conversely, food enhances the absorption of the oral form, reversing the effect of reduced bioavailability from acidity modifiers.

Pharmacodynamic and Laboratory Interactions

Cefuzime requires caution when combined with certain medicines due to documented pharmacodynamic effects. Co-administration with oral anticoagulants may lead to an increased International Normalised Ratio (INR) and an elevated risk of bleeding. Caution is also advised when co-administered with potent diuretics or nephrotoxic drugs like Aminoglycosides, as this combination has been formally associated with an increased risk of renal impairment. For combined oral contraceptives, the drug label documents a potential reduction in contraceptive efficacy. Additionally, Cefuzime use may result in a false-positive Coombs test and can interfere with certain blood and urine glucose tests.

Mechanism of Action

Cefuzime (Cefuroxime) functions through a bactericidal mechanism, focusing on biochemical pathways required for bacterial structural integrity. The drug acts by forming an irreversible covalent bond with specific bacterial enzymes known as Penicillin-Binding Proteins (PBPs), primarily PBP3 and PBP1a/1b. This interaction acylates the enzyme's active site, permanently inhibiting its transpeptidase function.

Inactivation of PBPs arrests the final stage of peptidoglycan cross-linking, preventing the construction of a rigid cell wall layer. This structural failure compromises the bacterial cell's integrity and simultaneously activates internal autolytic enzymes. Unable to withstand its high internal osmotic pressure, the bacterial cell undergoes cytolysis (rupture), leading directly to bacterial cell death.

This mechanism is constrained by bacterial beta-lactamase enzymes which hydrolyze the drug's beta-lactam ring, or by the production of altered PBPs with reduced binding affinity, thereby circumventing the drug's intended action.

Dosage and Administration Information

How to Use Cefuzime (Cefuroxime) — Administration Overview

Cefuzime, known generically as Cefuroxime, must be administered strictly according to its labeling, which defines the route, dosage, timing, and preparation for its various forms.


Administration Scope

Administration Detail Instruction
Route of Administration Oral (tablets/suspension), Intravenous (IV), or Intramuscular (IM).
Dosing Schedule Most forms are dosed Twice Daily (q12h) or Every 8 Hours (q8h).
Timing in Relation to Meals Oral tablets can be taken with or without food, but the oral suspension must be taken with meals.
Preparation Requirements Oral powder requires reconstitution; IV/IM powder requires reconstitution and may need further dilution for infusion.

Procedural and Adjustment Rules

Special Procedural Conditions:

  • Oral Tablets must be swallowed whole and should not be crushed or split.
  • IV Administration must be given as a slow injection (3 to 5 minutes) or as an infusion (30 to 60 minutes).
  • IM Administration requires deep injection into a large muscle mass.
  • The full prescribed course duration (typically 7 to 10 days) must be completed as directed.

Population-Specific Rules:

  • Dosage adjustment is mandatory for patients with renal impairment, where the dosing interval or amount must be reduced based on creatinine clearance.
  • Pediatric dosing for suspension is calculated based on body weight.

In the event of a missed dose, the dose should be taken as soon as remembered unless it is near the next scheduled time, in which case the missed dose should be skipped; do not take two doses simultaneously.

Recent Clinical Evidence

Evidence for Treating Respiratory and Skin Infections

Research has been studied for Cefuzime (Cefuroxime) in the context of conditions such as lower respiratory tract infections and acute bacterial bronchitis. The research available includes Randomized Controlled Trials (RCTs) and systematic reviews. These studies primarily monitored outcomes related to systemic or functional imbalance, such as the resolution of visible signs and symptoms, and also measured the clearance of bacteria from the affected area. Findings describe patterns observed in the studies where clinical response measurements were similar to those seen with other established antibiotics.

What remains uncertain is the necessity for ongoing monitoring of how Cefuzime interacts with evolving patterns of bacterial resistance, which may influence how it performs over time. Additionally, follow-up durations were limited in many studies, meaning that long-term effects are not fully established.


Research on Surgical Prophylaxis and Prevention

The research base was studied for Cefuzime's use in surgical site infection (SSI) prophylaxis. The evidence relies on comparative RCTs and meta-analyses that synthesized data from multiple trials, and was evaluated in patient groups undergoing various surgical procedures. The primary outcome monitored was the documentation of the incidence rate of SSI. The findings indicate that the rate of surgical site infections observed in the studied groups was associated with patterns comparable to those seen with first-generation cephalosporin agents. Key limitations include that this research primarily focuses on demonstrating comparable performance; the long-term effects are not fully established beyond the short 30-day monitoring interval.


Evidence in Special Populations and Uncertainties

Studies monitored clinical outcomes in pediatric patients (children) for conditions such as otitis media and dedicated research examined Cefuzime use in pregnant women diagnosed with pyelonephritis. Findings describe group patterns, not personal outcomes. However, data for certain groups remain insufficient. For instance, some of the findings in pediatric patients with acute sinusitis were mixed when compared to a placebo. The research base consistently notes that the continued evaluation of performance is dependent on local bacterial resistance patterns, which requires ongoing research and surveillance.

Key Studies & References

  1. Meta-Analysis of Clinical Trials Comparing Cefazolin to Cefuroxime, Ceftriaxone, and Cefamandole for Surgical Site Infection Prevention
  2. Cefuroxime - StatPearls (Indications and US Regulatory Information)

Frequently Asked Questions (FAQ)

Common questions about Cefuzime (FAQ)


Q: Is Cefuzime considered a broad-spectrum antibiotic?

A: Yes, Cefuzime (cefuroxime axetil) is classified by official sources as a semisynthetic, broad-spectrum cephalosporin antibiotic. This means it is typically effective against a wide variety of bacterial infections caused by both Gram-positive and Gram-negative bacteria.


Q: What happens if I stop taking Cefuzime as soon as I feel better?

A: Official guidance emphasizes the importance of completing the full prescribed course. Stopping the medicine too soon increases the risk of developing drug-resistant bacteria.


Q: Why is it important to complete the full course of Cefuzime?

A: Completing the full course is generally recommended to reduce the potential for the infection to recur or for bacteria to develop resistance to the medication.


Q: Is dizziness a normal side effect of Cefuzime?

A: Dizziness is listed in the official product information as one of the common adverse reactions reported by patients in clinical trials. This means it is a common adverse reaction that has been reported by patients in clinical trials.


Q: Is it possible for Cefuzime to cause a fungal infection, like thrush or a yeast infection?

A: Yes, the potential for superinfections (a second infection during treatment) is a known safety consideration. Candida overgrowth, which is the cause of thrush or yeast infections, is listed as a common adverse reaction in the safety data.


Q: Is Cefuzime appropriate for treating children's infections?

A: Official labeling indicates that Cefuzime is indicated for use in pediatric patients (children) for certain infections, such as acute bacterial otitis media and pharyngitis/tonsillitis. However, safety and effectiveness are not established for patients under 3 months of age.


Q: Is Cefuzime effective for treating ear infections like otitis media?

A: Yes, Cefuzime is indicated for the treatment of acute bacterial otitis media (middle ear infection). This use targets infections caused by susceptible strains of specific bacteria, such as Streptococcus pneumoniae.


Q: Can Cefuzime be used to treat infections in the lungs or chest?

A: Yes, official guidelines indicate Cefuzime is used for certain lower respiratory tract infections. This includes the treatment of acute bacterial exacerbations of chronic bronchitis and secondary bacterial infections of acute bronchitis.


Q: Is Cefuzime ever prescribed for urinary tract infections (UTIs)?

A: Yes, Cefuzime is indicated for the treatment of uncomplicated urinary tract infections (UTIs). This use targets infections caused by susceptible strains of common UTI-causing bacteria, such as Escherichia coli.


Q: Does Cefuzime work on virus infections like the common cold or flu?

A: No. Cefuzime is an antibiotic designed to treat infections caused only by bacteria. Official prescribing information confirms it is designed only to treat bacterial infections. It is generally not effective against viruses like the common cold or flu.


Q: What is the 'Jarisch-Herxheimer reaction' that can occur with Cefuzime for Lyme disease?

A: The Jarisch-Herxheimer reaction is an effect that has been reported in regulatory documents following Cefuzime treatment for Lyme disease. It is a consequence that may be experienced when the drug quickly begins to break down the bacteria. It is generally described as common and self-limiting.


Q: Can Cefuzime affect the results of a blood sugar test?

A: Yes, a drug/laboratory test interaction is documented. Cefuzime may cause a false-negative result for blood or plasma glucose when certain testing methods, such as ferricyanide tests, are used. Alternative testing methods are often used to avoid potential interference.


Q: Is the bitter taste of the crushed Cefuzime tablet normal?

A: The official administration instructions state that Cefuzime tablets must be swallowed whole and should not be chewed, crushed, or split. Official instructions are in place to ensure proper absorption.


Q: What are the possible signs of an accidental overdose of Cefuzime?

A: Overdosage can lead to effects on the central nervous system. Regulatory information notes that symptoms can include seizures and other neurological problems. Regulatory documents note that management of an overdose involves general supportive measures.


Q: Can Cefuzime be used for uncomplicated skin and soft tissue infections?

A: Yes, Cefuzime is indicated for the treatment of uncomplicated skin and skin-structure infections. This use targets infections caused by susceptible bacteria like Staphylococcus aureus or Streptococcus pyogenes.


Q: Is it normal to feel a bit dizzy or less alert when on Cefuzime?

A: Dizziness is a common adverse reaction noted in the official safety data. Due to this potential effect on the central nervous system, official guidance suggests caution regarding tasks that require alertness, such as driving or operating machinery.


Q: What is the risk of developing Clostridioides difficile-associated diarrhea with Cefuzime?

A: The risk of Clostridioides difficile-associated diarrhea (CDAD) is noted in the warnings section for Cefuzime. This can range from mild to severe colitis and can sometimes occur even up to two months after the medication is stopped.


Q: What types of bacteria is Cefuzime most effective against (Gram-positive or Gram-negative)?

A: The drug's microbiology profile shows activity against a wide range of common pathogens, including many Gram-positive microorganisms (e.g., S. pneumoniae) and Gram-negative microorganisms (e.g., E. coli). This reflects its second-generation cephalosporin status.


Q: Is Cefuzime used for more severe or complicated infections?

A: Many infections listed on the official label are for mild-to-moderate conditions, such as pharyngitis/tonsillitis. However, Cefuzime's injectable form may be used in hospital settings for more severe infections, where specific dosing may be required.


Q: Does Cefuzime interact with any vaccines, like the cholera vaccine?

A: Yes, an interaction is documented. Cefuzime may decrease the effects of certain vaccines, including the oral typhoid vaccine (live) and the cholera vaccine. Official guidance recommends avoiding co-administration of the cholera vaccine with systemic antibiotics.


Q: Is it normal to have a mild rash that goes away when taking Cefuzime?

A: While minor rashes can occur with antibiotics, the label emphasizes the importance of watching for serious hypersensitivity reactions and severe cutaneous adverse reactions (SCARs). Patients are advised to contact their healthcare provider if any rash develops, due to these potential risks.


Q: How does Cefuzime affect the growth of bacteria resistant to penicillin?

A: Cefuzime is effective against certain bacterial strains that produce the enzyme beta-lactamase, which is a primary mechanism for penicillin resistance. This activity helps treat infections caused by some bacteria that are not susceptible to penicillin-class drugs.


Q: Can Cefuzime cause an increased risk of bleeding or bruising?

A: An increased risk of bleeding is noted, particularly when Cefuzime is taken with oral anticoagulants (blood thinners). Additionally, postmarketing reports include blood disorders, such as thrombocytopenia (low platelet count), which can contribute to easier bruising.

How should Cefuzime be stored and disposed of?

Storage and Disposal Conditions for Cefuroxime (Cefuzime)

Dosage Form Required Storage Condition Stability/Handling Rule
Tablets Store at Controlled Room Temperature (20 C to 25 C) in the original, tightly closed container to protect from moisture. Keep out of the sight and reach of children.
Oral Suspension (Liquid) Must be stored in a refrigerator (2 C to 8 C); Do not freeze. Discard any unused portion after 10 days.
Powder for Injection Store at a temperature not exceeding 25 C and keep in the outer carton to protect from light. Reconstituted solution must be used immediately or within a maximum of 24 hours if refrigerated.

All expired or unused Cefuzime must be disposed of in accordance with local requirements. Patients are instructed to utilize established drug take-back programs and avoid discharge into drains or general household waste.

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

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