Ceflour

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Ceflour

Quick Facts

Property Description
Active Ingredient Cefuroxime
Form Oral tablets, oral suspension, powder for injection
Pharmacological Class Second-generation cephalosporin antibiotic
Common Use Fighting bacterial infections
Origin Semisynthetic

What Type of Antibiotic is Ceflour? (Identity and Classification)

Ceflour is a prescription-only beta-lactam antibiotic belonging to the cephalosporin family of antibacterial agents, used as a systemic antiinfective against bacterial infections. The active substance, Cefuroxime, is a semisynthetic compound.

Cefuroxime is classified as a second-generation cephalosporin, providing broad-spectrum activity against both Gram-positive and many Gram-negative organisms. This classification is clinically recognized because Cefuroxime demonstrates increased stability against many common beta-lactamase enzymes produced by bacteria, which means the medicine can overcome some bacterial defenses that deactivate older antibiotics.


Composition and Available Forms (Substance and Variation)

The therapeutic agent in Ceflour is Cefuroxime, which is chemically structured for either oral intake or injection. For oral products, it is supplied as the inactive precursor Cefuroxime axetil prodrug, while the injectable version contains the active Cefuroxime sodium salt. This distinction is made to ensure proper absorption in the digestive system.

Ceflour is supplied as a single active ingredient product in various pharmaceutical preparations, including film-coated tablets, a liquid oral suspension, and a sterile powder for injection. The tablets, for example, are designed to be swallowed whole because crushing them can release an unpleasantly bitter taste; the availability of a liquid suspension is vital for pediatric patients.


Ceflour's General Purpose as a Bactericidal Agent (High-Level Benefit)

The fundamental purpose of Ceflour is to act as a bactericidal agent, meaning its primary mechanism is to directly kill susceptible bacteria, rather than simply inhibiting their growth. This is achieved by interfering with the bacteria's ability to build and maintain their essential cell walls.

The general benefit of this action is the effective elimination of the infectious organisms. Its broad-spectrum and bactericidal properties mean Ceflour can reliably help the body overcome the underlying bacterial infection caused by a wide variety of susceptible pathogens.

Regulatory References

  1. Cefuroxime - StatPearls - NCBI Bookshelf

What side effects are possible with Ceflour?

Possible Side Effects and Safety Information

The safety profile of Ceflour (Cefuroxime) is defined by officially documented adverse reactions classified by their frequency and the body system affected. These classifications are based on data from regulatory sources like the FDA and EMA prescribing information.

Commonly documented adverse reactions include gastrointestinal effects such as diarrhea, and changes in blood counts like eosinophilia and decreased hemoglobin. Other common effects include headache and transient rises in liver enzymes (ALT/AST). Effects classified as uncommon include nausea, vomiting, rash, urticaria, pruritus, and Candida overgrowth.


Serious Adverse Reactions and Safety Constraints

The official labeling highlights several serious adverse reactions, including potentially fatal severe hypersensitivity reactions (anaphylaxis), and Clostridioides difficile-Associated Diarrhea ( CDAD). Very rare, serious skin disorders such as Stevens-Johnson syndrome are also documented.

Safety constraints apply to specific populations. Ceflour is contraindicated in patients with a known hypersensitivity to the drug or to other beta-lactam antibiotics. For patients with renal impairment, the drug’s clearance is prolonged, which may increase the risk of side effects, including cerebral irritation. Furthermore, Cefuroxime can interfere with certain diagnostic tests, potentially leading to false-positive results for urine glucose and a positive Coombs test.

Overdose and Emergency Response

Overdose and When to Seek Help

Ceflour (Cefuroxime) overdose is associated with the potential for serious effects primarily on the central nervous system.

Overdose Presentation Key Manifestations
Neurological Effects Cerebral irritation, convulsions (seizures), encephalopathy, and, in severe cases, coma.
Risk Factor Increased toxicity risk if dosage is not appropriately reduced in patients with existing renal impairment.

Immediate Action Required

If an overdose is suspected or a serious adverse event occurs, it is critical to seek medical attention immediately.

Call emergency services (such as 911 in the U.S.) or a Poison Control Center right away if the individual has collapsed, has trouble breathing, is having a seizure, or cannot be awakened.

In a hospital setting, treatment for Cefuroxime overdose is supportive. The drug can be removed from the bloodstream using standard medical procedures. Official regulatory information states that high serum levels of Cefuroxime can be effectively reduced through the use of hemodialysis or peritoneal dialysis.

Therapeutic Uses of Ceflour

What Ceflour Treats: Main Uses and Benefits

Ceflour is commonly used across several therapeutic domains to address infections caused by susceptible bacteria. The medication is generally applied in contexts where additional symptomatic support is needed.

Ceflour is commonly used for conditions characterized by periods of heightened symptoms in the respiratory tract, such as acute bacterial exacerbations of chronic bronchitis, and in otolaryngological infections like acute otitis media and pharyngitis/tonsillitis. It is also relevant in managing uncomplicated systemic and dermatological infections, including uncomplicated urinary tract infections (UTIs), superficial skin infections, and early-stage Lyme disease.

The medication is applied when symptoms cluster into patterns of fever, localized pain, and inflammation. It helps address symptom clusters that may become intense or disruptive, assisting with maintaining functional stability and contributing to improved comfort during symptomatic periods. The injectable form is applied in clinical settings that involve acute or unstable symptom patterns for severe conditions like septicemia and meningitis, and is applied in scenarios where additional management of discomfort or infection risk is required for surgical prophylaxis.


Quick Facts: Therapeutic Support

Quick Fact Therapeutic Domain Patient Benefit
Primary Use Conditions presenting with systemic or localized discomfort Provides support that helps ease the overall symptom burden
Application Context Applied in clinical settings that involve acute or unstable symptom patterns Assists with maintaining functional stability
Symptom Focus Symptoms related to inflammatory or irritative states Supports patients during difficult episodes by easing distress

Eligibility and Restrictions for Use

Who Can and Cannot Use Ceflour (Cefuroxime Axetil)?

This section outlines who is eligible to use Ceflour and who must avoid it, based on official regulatory information.

Contraindicated and Restricted Populations

Classification Eligible Populations
Use is Allowed Adults and pediatric patients (3 months and older).
Use is Contraindicated Individuals with a known hypersensitivity or severe allergic reaction to Cefuroxime (the active ingredient) or to any other drug in the cephalosporin class of antibiotics.
Use Requires Special Consideration Patients with a known history of penicillin allergy due to potential cross-reactivity. Patients with a history of colitis or gastrointestinal disease. Patients with renal impairment (kidney function issues), as a dosage adjustment may be necessary.

Age and Formulation Restrictions

  • Pediatric Use: Ceflour is generally not established or recommended for infants younger than 3 months of age.
  • Formulation Restriction: The oral suspension form of Ceflour is sweetened with aspartame and contains phenylalanine. It is therefore not recommended for patients with Phenylketonuria (PKU).

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents define the interaction profile of Ceflour (Cefuroxime) based on specific pharmacokinetic, pharmacodynamic, and procedural constraints.

Pharmacokinetic and Pharmacodynamic Interactions

Interacting Substance/Class Official Documented Interaction Outcome
Probenecid Co-administration is not recommended; it significantly increases Cefuroxime systemic exposure (serum levels and half-life) by inhibiting renal tubular secretion.
Gastric Acidity Reducers (H2-antagonists, PPIs) Should be avoided with oral Cefuroxime axetil, as they are documented to lower the drug's oral bioavailability and negate the increased absorption achieved with food.
Oral Contraceptives Officially documented to have a risk of reduced efficacy due to Cefuroxime's effect on gut flora and subsequent lowering of estrogen reabsorption.

Administration and Procedural Constraints

Constraint Type Official Requirement
Timing Separation Short-acting antacids must be administered at least 1 hour before or 2 hours after Cefuroxime axetil.
Population Caution For concomitant use with Potent Diuretics (e.g., Furosemide) or other nephrotoxic drugs, regular renal function monitoring is indicated.
Diagnostic Interference Cefuroxime is officially documented to cause a false-positive reaction for glucose in urine with copper reduction tests and a false-negative result with the ferricyanide test for blood glucose. It may also lead to a false-positive Coombs test.

These patterns structure the official profile, identifying substances that alter drug concentration, affect hormonal efficacy, or require dose separation or monitoring based on regulatory authority mandates.

Mechanism of Action

Pharmacodynamic Mechanism

Cefuroxime exerts its mechanism of action by acting as an irreversible covalent inhibitor of Penicillin-Binding Proteins (PBPs), which are bacterial enzymes essential for building the cell wall. The drug forms a stable, covalent bond with the PBP active site, permanently neutralizing its transpeptidase function.

This molecular blockade halts the final stage of peptidoglycan cross-linking, resulting in a structurally compromised and unstable bacterial cell wall. This failure prevents the cell from maintaining its osmotic stability, and the inability to resist the pressure gradient ultimately leads to the rupture and destruction (lysis) of the bacterial cell. This mechanistic cascade is the definition of the bactericidal action against susceptible organisms.

Cefuroxime possesses structural features that reduce susceptibility to hydrolysis by many common forms of bacterial beta-lactamase enzymes. This stability allows the drug to successfully reach the PBP target, facilitating the PBP inhibition required to sustain the lytic cascade. Resistance to this mechanism emerges when bacteria undergo mutations that structurally alter the active site of the PBP, leading to decreased binding affinity and failure of the inhibition cascade.

Dosage and Administration Information

This section outlines the administration instructions for Cefuroxime (marketed under various names, including Ceflour).

Administration Requirements

Requirement Oral Tablet (e.g., 250 mg, 500 mg) Oral Suspension (Liquid Form) Parenteral (IV/IM)
Route of Administration Oral Oral Intravenous (IV) or Intramuscular (IM)
Timing in Relation to Meals May be taken with or without food; absorption is enhanced with food. Must be taken with food for optimal absorption. Not applicable to administration method.
Dosing Frequency Typically twice daily (every 12 hours). Typically twice daily (every 12 hours). Typically administered every 8 hours, or every 6 hours for more severe infections.
Preparation Swallow tablet whole. Do not crush, break, or chew. Shake the bottle well before each use. Powder must be reconstituted with the specified diluent before injection or infusion.
Special Condition Tablets and suspension are not bioequivalent and should not be substituted on a milligram-per-milligram basis. Pediatric dosing (3 months to 12 years) is weight-based and is generally 10 mg/kg to 15 mg/kg per dose, twice daily. IV injection should be administered over 3 to 5 minutes or infused over 30 to 60 minutes.

Dosage and Duration Protocol

The full prescribed course, often ranging from 5 to 10 days, must be completed, even if symptoms improve early. A single 1 g oral dose or 1.5 g IM injection may be used for specific conditions, such as uncomplicated gonorrhea.

Renal Impairment Adjustment: Dosage adjustments are required for patients with markedly impaired renal function (e.g., creatinine clearance less than 30 mL/min), typically by reducing the frequency of administration.

Missed Dose: Take the missed dose as soon as it is remembered. If it is almost time for the next scheduled dose, skip the missed dose and return to the regular schedule; do not take a double dose.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Ceflour

Evidence for Use in Respiratory Tract Infections

Research on Ceflour for respiratory conditions, such as acute bacterial exacerbations of chronic bronchitis and pharyngitis/tonsillitis, was primarily conducted through short-term Randomized Controlled Trials (RCTs). These studies were performed in research exploring how symptoms change over time. These studies primarily included adults and adolescents experiencing periods of increased symptom activity. Some trials also studied the injectable form followed by the oral form, a pattern known as Sequential Therapy, which researchers explored in specific clinical scenarios. Researchers monitored clinical outcomes related to physical discomfort, such as cough and sputum, alongside the bacteriological response, which described the status of susceptible bacteria.

Research examined these conditions and reported on patterns of how symptoms evolved in the observed populations during the typically 5- to 10-day treatment course. Findings describe patterns observed in the studies related to changes in acute symptoms and the frequency of requiring further treatment. For pharyngitis, studies also documented the rate of clinical cure and bacteriological eradication of the common causative bacterium, Streptococcus pyogenes.

Evidence for Use in Skin, Urinary, and Vector-Borne Infections

For infections affecting the skin, the urinary tract, and early-stage Lyme disease, Ceflour was evaluated in a mix of RCTs and comparative studies. Research examined patients with uncomplicated urinary tract infections (UTIs) and superficial skin infections, focusing on outcomes capturing phases of heightened symptom activity, such as clinical cure and the resolution of infection manifestations. For UTIs, studies monitored the frequency of achieving a sterile urine culture after therapy.

Research examined Ceflour in the context of early-stage Lyme disease, specifically the characteristic rash known as Erythema Migrans. Trials explored outcomes related to physical discomfort and systemic or functional imbalance over an extended period. The research describes what patterns were observed so far regarding changes in the size or appearance of the rash. Furthermore, they included a long-term follow-up component to observe patient patterns up to one year after the treatment course.

What is Still Uncertain About the Research for Ceflour

Evidence highlights what is known—and what is still uncertain. Evidence quality varies across studies, and limitations exist across the entire research landscape.

  • Long-term effects are not fully established for many indications, as trials generally prioritize acute treatment outcomes over follow-up spanning months or years.
  • Data for certain subgroups, such as patients with specific rare comorbidities or highly resistant strains of bacteria, remain insufficient.
  • Findings were mixed or inconsistent in some comparative studies, and comparative evidence is lacking in some areas where research relies on non-comparative or open-label designs.

Frequently Asked Questions (FAQ)

Common questions about Ceflour (FAQ)

Q: Is Ceflour a type of penicillin?

No, Ceflour is a cephalosporin antibiotic. While both cephalosporins and penicillins belong to a class of antibiotics called beta-lactams, they are structurally different. Patients with a known penicillin allergy should discuss this with a healthcare professional before taking Ceflour, as there is a potential for a cross-reaction, though it is often considered low.

Q: What is Ceflour used to treat?

Ceflour is indicated for the treatment of certain bacterial infections. These typically include infections of the ear, nose, throat, lower respiratory tract, skin and skin structure, and urinary tract, as specified on the product labeling.

Q: Can I stop taking Ceflour once I feel better?

No. If a healthcare professional prescribes a full course of Ceflour, it is generally recommended to finish the entire prescribed amount, even if symptoms begin to improve sooner. Stopping early may allow bacteria to survive and become resistant to the antibiotic.

Q: How should Ceflour be stored?

Ceflour should be stored according to the instructions provided on the packaging and by the pharmacist. The capsules or tablets are typically stored at room temperature away from moisture and heat. The liquid suspension (if applicable) may require refrigeration and should be discarded after a specific time period.

How should Ceflour be stored and disposed of?

Storage and Disposal Requirements

Official regulatory documents define specific storage and disposal requirements for Ceflour (Cefuroxime) to ensure stability and safety.

Dosage Form Temperature Requirement Stability Constraint
Tablets Room Temperature (15 C to 30 C) Protect from moisture and light
Suspension (Reconstituted) Refrigerated (2 C to 8 C) Must be discarded after 10 days

All forms must be protected from freezing. The medication must be kept in a closed container and securely out of the reach of children. For disposal, unused, outdated, or no-longer-needed medicine should not be kept. Patients are instructed to consult a healthcare professional or pharmacist regarding proper disposal methods.

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

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