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Cefuroxime (Ceftin, Zinacef): Uses, Forms, and Safety

Quick summary Cefuroxime is a cephalosporin antibiotic available in oral and injectable forms. It is used for several bacterial infections and for some surgical prophylaxis situations. Exact use, dose, and duration depend on the...

Educational content Use this article as a starting point for understanding the topic.
Check with a professional Ask a doctor or pharmacist before changing any medicine.
Safety first Side effects, interactions and risks depend on each person.
Medical disclaimer

This content is for educational purposes only and does not replace medical advice, diagnosis or treatment from a qualified healthcare professional.

Quick summary

Cefuroxime is a cephalosporin antibiotic available in oral and injectable forms. It is used for several bacterial infections and for some surgical prophylaxis situations. Exact use, dose, and duration depend on the product, age, weight, kidney function, and the official prescribing information.

Medical disclaimer: This article is for general information only. It does not replace advice from a doctor, pharmacist, or the official FDA medication guide. Do not use it to diagnose an illness or to decide on treatment changes.

What is cefuroxime?

Cefuroxime is an antibiotic used to treat certain bacterial infections. The content provided for this article lists two related forms: cefuroxime axetil for oral use and cefuroxime sodium for injection.

Brand names mentioned in the source content include Ceftin, Zinacef, and Kefurox.

How cefuroxime works

Cefuroxime is described as a bactericidal antibiotic. It works by inhibiting bacterial cell wall synthesis, which leads to bacterial lysis.

What cefuroxime is used for

The source content lists cefuroxime for the treatment of several infections, including:

  • Tonsillitis and pharyngitis
  • Sinusitis
  • Otitis media
  • Bronchitis and acute exacerbation of chronic bronchitis
  • Community-acquired pneumonia
  • Cystitis and pyelonephritis
  • Uncomplicated skin and soft tissue infections
  • Intra-abdominal infections
  • Early Lyme disease
  • Antibiotic prophylaxis in some gastrointestinal, orthopedic, cardiovascular, and gynecological surgeries, including cesarean section

Whether cefuroxime is appropriate depends on the infection, the suspected bacteria, and the formulation being used.

Available forms

The content distinguishes between:

  • Oral cefuroxime axetil
  • Injectable cefuroxime sodium for intravenous or intramuscular use

How it is taken or given

According to the source content, oral cefuroxime should be taken right after meals.

Injectable cefuroxime sodium is given by intravenous or intramuscular routes, or by intravenous infusion, depending on the clinical situation and the product instructions.

Dosage information from the source content

The following summary reflects the original content and should be verified against the official leaflet or prescribing information before use.

Oral dose: cefuroxime axetil

Group Examples listed in the source
Adults and children weighing 40 kg or more 250 mg twice daily for several infections; 500 mg twice daily for otitis media, chronic bronchitis exacerbation, and Lyme disease
Children under 40 kg Weight-based dosing is listed in the source content for different infections
Treatment duration Usually 5 to 10 days; Lyme disease is listed as 10 to 21 days

Injectable dose: cefuroxime sodium

Group Examples listed in the source
Adults and children weighing 40 kg or more Doses are listed for pneumonia, bronchitis exacerbation, soft tissue and intra-abdominal infections, complicated urinary tract infections, and surgical prophylaxis
Children under 40 kg Weight-based intravenous dosing is listed for selected infections
Renal impairment Dose adjustment is listed in the source content

Contraindications listed in the source

Cefuroxime should not be used in people with:

  • Hypersensitivity to cefuroxime or other cephalosporin antibiotics
  • A history of severe hypersensitivity to other beta-lactam antibacterials, including penicillins, monobactams, and carbapenems

Warnings and precautions

The original content highlights several precautions to review with a healthcare professional:

  • Allergy to penicillins or other beta-lactams
  • Kidney failure, where dose adjustment may be needed
  • Liver failure, where caution is advised
  • Risk of overgrowth of Candida and other non-sensitive microorganisms during prolonged treatment
  • Risk of pseudomembranous colitis
  • Possible nephrotoxicity with potent diuretics or aminoglycosides
  • Jarisch-Herxheimer reaction may occur during treatment for Lyme disease
  • Injectable forms should be used only by the approved IV or IM routes, not intracamerally
  • No experience is listed for children under 3 months

Kidney and liver considerations

The source content advises caution in liver failure and dose adjustment in kidney failure. It also lists specific renal dosing adjustments for both oral and injectable forms.

If kidney disease is present, the official leaflet and a clinician’s guidance are especially important before use.

Interactions listed in the source

The original content mentions the following interactions or testing issues:

  • Possible nephrotoxicity with aminoglycosides and furosemide
  • Reduced oral absorption with antacids
  • Reduced renal tubular secretion with probenecid
  • Possible reduced reabsorption of estrogens, which may affect oral contraceptive efficacy
  • Possible false-positive Coombs and glucosuria tests by reduction method
  • Possible false-negative blood glucose with ferricyanide method
  • Possible increased INR with oral anticoagulants

Pregnancy and breastfeeding

The source content says there is not enough information on pregnancy and that benefit-risk assessment is needed.

For breastfeeding, cefuroxime is described as passing into breast milk in small amounts. The source notes that adverse reactions are not expected at therapeutic doses, but diarrhea and fungal infections in the infant cannot be excluded.

Driving and machinery

No studies are listed on driving ability, but the source content warns that cefuroxime can cause dizziness. If dizziness occurs, driving or operating machinery may be affected.

Possible adverse reactions

The source content lists the following adverse reactions:

  • Candida overgrowth
  • Neutropenia
  • Eosinophilia
  • Decrease in hemoglobin
  • Headache
  • Dizziness
  • Diarrhea
  • Nausea
  • Abdominal pain
  • Increased liver enzymes
  • Injection-site reactions

What to verify with a doctor or pharmacist

If cefuroxime has been prescribed or is being considered, it is useful to confirm:

  • Which formulation is being used: oral cefuroxime axetil or injectable cefuroxime sodium
  • The exact infection being treated
  • Whether kidney function changes the dose
  • Whether any other medicines may interact with it
  • How long the treatment should last
  • Whether the official patient leaflet includes any additional warnings

Safety reminder: Antibiotics should be used only when prescribed for a suspected or confirmed bacterial infection. If symptoms worsen, new symptoms appear, or an allergic reaction is suspected, seek medical advice promptly.

FAQ

▸ What is cefuroxime used for?

The source content lists cefuroxime for several bacterial infections, including throat, sinus, ear, bronchial, lung, urinary tract, skin, abdominal, and early Lyme disease, as well as some surgical prophylaxis uses.

▸ Is cefuroxime the same as Ceftin or Zinacef?

The source content lists Ceftin and Zinacef as brand names associated with cefuroxime in the United States.

▸ Should cefuroxime be taken with food?

The source content says oral cefuroxime should be taken right after meals.

▸ What are the main precautions?

The source content highlights allergy history, kidney and liver caution, possible overgrowth of non-sensitive organisms, pseudomembranous colitis, and route-specific precautions for injectable forms.

▸ Can cefuroxime affect lab tests?

Yes. The source content mentions possible false-positive Coombs and glucosuria tests and possible false-negative blood glucose results with one testing method.

▸ Where can I check the official information?

The FDA medication guide and the product leaflet are the best places to confirm approved uses, warnings, and dosing details for a specific product.

Editorial note Active Ingredients Online Editorial Team This article is prepared as educational medicine information for general readers. It is written to support understanding of active ingredients, medicine uses, possible side effects, precautions and safety-related questions.
Published: July 8, 2019 Updated: August 17, 2026 Educational content

Medical disclaimer

This content is for educational purposes only. It should not be used as a substitute for professional medical advice, diagnosis or treatment. Always ask a doctor, pharmacist or qualified healthcare professional before starting, stopping or changing any medicine.

Sources and verification

The following sources or official references are listed to support verification of the medicine information discussed in this article.

Final note

Medicine information can change and may vary depending on country, product formulation, patient history and professional guidance. Always check official medicine information and ask a healthcare professional for personal medical questions.

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