Claforan

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Claforan

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Medically reviewed

Laura Arias

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 Claforan

Quick Facts

Property Description
Active ingredient Cefotaxime sodium (INN)
Form Sterile powder for injection
Pharmacological class beta-Lactam antibiotic; Third-generation cephalosporin
Common use Systemic antibacterial action
Origin Semisynthetic compound

Cefotaxime and the Third-Generation Cephalosporin Class

Claforan is the recognized trade name for the prescription-only medicine whose active component is Cefotaxime sodium. It is formally classified as a semisynthetic beta-Lactam antibiotic and belongs specifically to the third-generation cephalosporin group, a class clinically recognized for its potency against a wide spectrum of bacterial pathogens. The drug's designation as a third-generation cephalosporin grants it increased stability against bacterial defense mechanisms, particularly beta-Lactamase enzymes, compared to older generations.

The drug’s classification indicates its primary role as a systemic antibacterial. This type of medicine is typically used to rapidly address complex, systemic infections in adults and children where broad-spectrum activity is necessary.


Composition, Form, and General Therapeutic Purpose

Cefotaxime is supplied as a sterile powder for solution for injection. This physical form means the powder must be reconstituted with an appropriate liquid diluent immediately prior to use and is intended exclusively for parenteral administration (via injection). The composition is that of a single active ingredient product, with Cefotaxime sodium acting as the sole therapeutic agent.

The medicine's general purpose is to act as a bactericidal agent, meaning it actively kills bacteria. This effect is achieved through the inhibition of bacterial cell wall synthesis, a vital structural process unique to bacteria. This well-documented mechanism prevents bacteria from building their protective outer layer, providing a highly effective tool for clearing acute bacterial infections.

Regulatory References

  1. FDA Approval and Classification

What side effects are possible with Claforan?

Possible Side Effects and Safety Information

The safety profile for Claforan (Cefotaxime) is officially documented according to System-Organ Classes (SOCs) and frequency categories, classifying possible adverse reactions from clinical use and post-marketing surveillance. The effects are grouped by their impact on physiological systems, including the Gastrointestinal tract, Blood and Lymphatic system, and the Nervous System.


Frequency and System Classification

Adverse reactions are classified by their estimated incidence rate in official regulatory documents. For instance, pain at the injection site is considered Very Common with intramuscular administration. Effects like diarrhea, convulsions, and temporary changes in blood counts such as leukopenia are classified as Uncommon. Other serious reactions, including anaphylactic shock and pseudomembranous colitis, are listed under Frequency Not Known (meaning they cannot be estimated from available data).


Serious Adverse Reactions and Population Constraints

Official labeling highlights several rare but serious safety concerns. These include severe, immediate hypersensitivity reactions and severe skin reactions, such as Stevens-Johnson Syndrome (SJS). Neurotoxicity, presenting as encephalopathy or convulsions, is a documented risk, especially in patients with renal impairment, where dosage adjustment is required due to reduced drug clearance. Furthermore, caution is required regarding the method of administration, as rapid intravenous bolus injection through a central line is specifically associated with the potential for arrhythmia.

Duration and Interaction Notes

The development of certain blood disorders, like agranulocytosis, is documented primarily in relation to treatment courses lasting longer than 7 to 10 days. Safety notes also advise that caution is required when Cefotaxime is administered alongside other nephrotoxic drugs (e.g., aminoglycosides), due to the potential for increased toxicity to the kidneys. Additionally, prolonged use carries the risk of superinfection from the overgrowth of non-susceptible organisms.

Overdose and Emergency Response

Overdose and when to seek help

Overdose with Claforan (cefotaxime) is characterized by excessive serum concentrations of the active ingredient and is officially documented to carry a primary risk of serious neurotoxicity.

Aspect Official Regulatory Statement
Documented Manifestations Overdose symptoms may largely correspond to the profile of known side effects, notably encephalopathy. This can be evidenced by impairment of consciousness, abnormal movements, and can escalate to convulsions (seizures).
Severe Outcomes Serious outcomes include the risk of convulsions and a potentially life-threatening arrhythmia, the latter of which has been reported following rapid intravenous administration.
Population Risk Factor The risk of neurotoxicity is significantly increased in patients with renal insufficiency (impaired kidney function) due to the reduced ability to clear the drug and its active metabolite.

Emergency Actions

Any suspected overdose or the onset of severe neurological symptoms requires immediate medical attention. Regulators mandate that the medicine must be discontinued upon suspicion of overdose. In the event of severe, life-threatening symptoms such as collapse, seizure, or trouble breathing, contact emergency services immediately. Management is strictly supportive, as no specific antidote exists. Haemodialysis is documented as a key procedural measure that can be used to substantially reduce the plasma levels of Cefotaxime in the event of severe overdose.

Therapeutic Uses of Claforan

Quick Facts: What Claforan Treats

  • Respiratory Infections: Management of lower respiratory tract infections, including certain types of pneumonia.
  • Meningitis: Used in the treatment of central nervous system infections such as meningitis.
  • Abdominal and Gynecologic: May be used to address intra-abdominal and gynecologic infections.
  • Prevention: Utilized for prophylaxis to help prevent infections related to certain surgical procedures.

Claforan (cefotaxime injection) is an approved medication indicated for the management of various bacterial infections in several parts of the body. Its therapeutic application focuses on addressing conditions caused by susceptible organisms, which are confirmed or strongly suspected to be bacterial in origin.

The medication is used as a therapeutic option for infections involving the lower respiratory tract, including pneumonia. It is also utilized in the treatment regimen for central nervous system infections, such as meningitis, where the active ingredient is capable of entering the area. Other approved uses include certain skin and skin structure infections, as well as those affecting the urinary tract, bones, and joints.

Furthermore, Claforan has a defined role in surgical prophylaxis, where it is administered prior to, during, or after certain procedures to help minimize the risk of developing a postoperative infection. The clinical application of this drug is determined by a licensed healthcare professional based on the specific type and severity of the infection.

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Claforan — Official Regulatory Information


Eligibility Scope

Category Eligibility Rule
Populations for whom use is allowed (as stated in label): Use is established for adults, adolescents, children, and neonates across various age groups.
Populations for whom use is contraindicated: Patients with a documented hypersensitivity to Cefotaxime or the cephalosporin class of antibiotics must not use the medicine. It is also prohibited in patients with a history of cephalosporin-associated hemolytic anemia.
Age-related eligibility rules: Infants under 30 months of age are prohibited from receiving the formulation diluted with lidocaine. Older adults require caution in dose selection due to higher likelihood of decreased renal function.
Condition-specific eligibility rules: Use is restricted for patients with impaired renal function (kidney problems); the official labeling mandates a dose reduction based on the degree of impairment to prevent drug accumulation.
Pregnancy and lactation eligibility status (if explicitly documented): Classifications vary by region. US labeling historically listed the drug as Pregnancy Category B. However, some non-US authorities advise the medicine is contraindicated during pregnancy and lactation.
Eligibility-related restrictions: Use requires caution in patients with a history of penicillin allergy due to potential cross-reaction, and in those with a history of colitis or other gastrointestinal diseases.

Eligibility Classifications (High-Level)

Classification Basis
Eligibility severity classification (as defined in official documents): Contraindicated (Hypersensitivity), Restricted (Renal Impairment), and Conditional Use (Age/Comorbidity).
Regulatory basis (EMA / FDA / etc.): The rules are based on official government documents, including the Summary of Product Characteristics (SmPC) and FDA Prescribing Information.
Eligibility-context constraints (as defined in official documents): Eligibility is constrained by allergy history, age-specific formulation requirements, and organ function status.

Resulting Eligibility Structure

Official eligibility statements:

  • The use of Claforan is contraindicated by regulatory agencies in cases of known allergy to the drug or class.
  • Dose reduction is mandatory for patients with significant renal impairment.
  • Use in infants is prohibited when the lidocaine-containing diluent is administered.

Connection to the overall eligibility profile: Official regulatory documents define who can and cannot use Claforan by establishing absolute prohibitions based on documented hypersensitivity and strict conditional restrictions related to the patient's age and ability to clear the drug. These mandates ensure the population receiving the medicine meets specific criteria regarding pre-existing conditions and allergies, as outlined in the legal prescribing information.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents define specific pharmacokinetic and pharmacodynamic interactions for Claforan (Cefotaxime), alongside administration restrictions.

Pharmacokinetic and Pharmacodynamic Interactions

Interacting Substance Regulatory Outcome Classification
Probenecid Increases Cefotaxime exposure (AUC) by approximately 2-fold due to interference with renal tubular transfer.
Aminoglycosides, Potent Diuretics Potentiation of nephrotoxic effects and increased risk of kidney damage. Renal function monitoring is necessary.
Oral Anticoagulants (e.g., Warfarin) Documented increased risk of bleeding when co-administered.
Azlocillin, Mezlocillin Potential for reduced Cefotaxime clearance.

Contraindicated Combinations and Procedural Constraints

Cefotaxime solutions must not be mixed with Aminoglycoside solutions or alkaline solutions (like sodium bicarbonate) due to documented physicochemical incompatibility. The drug label imposes administration restrictions concerning the diluent: Cefotaxime reconstituted with Lidocaine is contraindicated for intravenous administration and is prohibited for use in infants under 30 months of age. The label also notes the potential for interaction with alcohol and may cause a false-positive Coombs test or certain urinary glucose tests.

Mechanism of Action

Claforan (cefotaxime) is a beta-lactam compound that targets the bacterial cell wall synthesis machinery. The molecule acts as a covalent, irreversible inhibitor of penicillin-binding proteins (PBPs), which are integral membrane-anchored transpeptidases essential for peptidoglycan cross-linking. Cefotaxime exhibits a high binding affinity for specific PBPs, notably PBP-1b and PBP-3, effectively arresting the final transpeptidation step in the cell wall construction pathway. This molecular inhibition prevents the formation of a structurally rigid peptidoglycan layer. The intracellular consequence of this disruption is the unarrested activity of bacterial autolytic enzymes (autolysins). The cumulative outcome is a system-level physiological modulation that results in the irreversible compromise of the bacterial cell envelope integrity and subsequent cell lysis.

Dosage and Administration Information

How to Use Claforan

Claforan (cefotaxime sodium) is administered exclusively via parenteral routes (injection), requiring specific preparation and scheduling. The sterile powder must be reconstituted with a compatible diluent, such as Sterile Water for Injection, immediately prior to use.


Administration Guidelines

Instruction Detail
Route of Administration Intravenous (IV) injection or infusion, or Intramuscular (IM) injection.
Adult Dosing Schedule Ranges from 1 g every 12 hours for uncomplicated infections to 2 g every 4 hours for life-threatening cases, with a maximum adult daily dose of 12 g.
IV Administration Speed Intermittent IV injection is to be given slowly over a period of 3 to 5 minutes to avoid complications.
Renal Adjustment Patients with severe renal impairment (creatinine clearance <20 mL/min or <5 mL/min) require the maintenance dose to be halved after the initial loading dose.
Pediatric Use Dosing for children and neonates is calculated by body weight (mg/kg/day) and divided into multiple doses based on age group and severity.
Treatment Duration Therapy is generally continued for a minimum of 48 to 72 hours after the patient demonstrates clinical improvement.

Use Protocol

The usage protocol is structured around the method and timing of delivery. The need for reconstitution of the powder defines the initial procedural step. Dosage and frequency are determined by the required daily total dose to address the type of infection, ranging from twice-daily to every four-hour administration. Administration must adhere to specified time limits for IV injection and specific dilution requirements, which ensures the medicine is administered correctly.

Recent Clinical Evidence

Claforan: Recent Clinical Evidence

Summary of Investigational Areas

Studies have investigated the role of Claforan (cefotaxime) in treating serious bacterial infections, particularly those caused by susceptible organisms. Research has examined its association with clinical outcomes across various infection sites.

  • Antimicrobial Spectrum: The compound is part of the third-generation cephalosporin class. Research explores its effectiveness against Gram-negative and Gram-positive bacteria, including investigations into susceptibility testing methods.
  • Biomarker Analysis: Studies focus on observing the drug's association with the clearance of pathogens and reductions in infection-related inflammatory markers.
  • Tolerability and Adverse Events: Standard investigations generally included assessments of participant responses and common adverse events, especially in vulnerable populations like neonates.

Focus Area 1: Treatment of Septicemia and Meningitis

Clinical trials have examined its use in treating bacterial meningitis and septicemia. In one major study, a link was reported between the administration of Claforan and the resolution of infection symptoms.

Comparative Efficacy Studies

Evidence includes studies exploring whether Claforan is related to equivalent clinical success rates when compared to certain other antibiotic treatments for specific severe infections.


Dosage and Administration Studies

Participants in studies were given various doses, and research explored differences in the time it took for the compound to reach measured concentrations in the blood and cerebrospinal fluid. Research has also investigated the required dosage adjustments for individuals with impaired renal function.

Frequently Asked Questions (FAQ)

Common questions about Claforan (FAQ)

Q: What is the main reason doctors prescribe Claforan?

Claforan (cefotaxime) is an antibiotic prescribed to treat a wide variety of bacterial infections across many areas of the body, according to official regulatory documents. This includes treating lower respiratory tract infections (like pneumonia), gynecological infections, skin infections, and severe conditions such as meningitis and septicemia.

Q: How quickly does Claforan start to work after being given?

Official information indicates that following an intramuscular injection, the drug reaches its highest concentration in the blood within approximately 30 minutes. While the drug's concentration is measurable quickly, the patient's clinical improvement time can vary depending on the severity and type of infection being treated.

Q: How long does the effect of Claforan last in the body?

Studies on healthy adults show that Claforan has a short elimination half-life of about 1 hour. The half-life refers to the time it takes for half of the drug to be removed from the body, and this rate is generally faster in people with normal kidney function.

Q: Is it common to feel tired after receiving Claforan?

Some official drug documents note that symptoms like unusual tiredness or fatigue may be associated with changes in blood counts, such as anemia, which are known adverse reactions. These symptoms are typically documented in relation to other known adverse reactions, which are described in the safety profile.

Q: Are headaches a known side effect of Claforan?

Official safety documents list potential effects on the nervous system. While headache may not be explicitly listed or classified by frequency in all official documentation, general nervous system effects are noted as possible adverse reactions.

Q: Does Claforan interact with common pain relievers like ibuprofen?

Official regulatory documents indicate that Claforan should be used with caution when administered alongside nephrotoxic drugs, which are medicines that can damage the kidneys. This group includes some Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) like ibuprofen, and the risk of increased kidney damage has been noted when co-administered.

Q: Is Claforan known to cause dizziness or lightheadedness?

Official safety information notes that serious but rare adverse reactions can include central nervous system effects, such as dizziness or confusion. These risks are emphasized particularly for patients who may have existing kidney problems.

Q: Can Claforan cause changes in mood or behavior?

Official regulatory safety information notes potential central nervous system effects associated with this medicine. These effects are noted as potential, but rare, central nervous system adverse reactions associated with the medicine.

Q: Does Claforan have a Black Box Warning from the FDA?

The FDA label for Claforan does not contain a Black Box Warning. This is the most serious warning required by the FDA to call attention to specific risks.

Q: Is Claforan used for skin infections?

Yes, Claforan is officially indicated for the treatment of skin and skin structure infections, provided the infection is caused by organisms that are known to be susceptible to the medicine. This is a primary use listed in the drug's official labeling.

Q: Does the body build up a resistance to Claforan over time?

Bacterial resistance to Cefotaxime is a known mechanism, which means the bacteria can change over time to defeat the drug. This resistance typically develops when bacteria produce beta-lactamase enzymes or alter key proteins necessary for cell wall synthesis.

Q: What does it mean if an official document mentions Claforan and Vitamin K deficiency?

Official safety information indicates that caution is noted because some antibiotics in the cephalosporin class have been associated with a potential risk of coagulopathy (bleeding problems). This can be due to interference with Vitamin K synthesis, and this risk is noted in official safety information.

Q: Do official documents mention Claforan being used for Lyme disease?

Claforan is listed in some authorized drug compendia as being used for the treatment of neurologic Lyme disease (e.g., Lyme meningitis). Its ability to reach the central nervous system is consistent with this use.

Q: What kind of infections does Claforan not treat?

Claforan is a bactericidal agent, meaning it only works by killing bacteria. Therefore, it will not work to treat infections caused by viruses, such as the common cold, flu, or other infections caused by non-susceptible organisms.

Q: How does the route of administration (IV/IM) impact the drug's effect?

Both Intravenous (IV) and Intramuscular (IM) routes are approved. The IV route delivers the drug directly into the bloodstream, resulting in immediate high concentrations. The IM route results in a slightly delayed peak blood concentration, usually within about 30 minutes.

Q: What is the difference between a side effect and an allergic reaction to Claforan?

A side effect is a non-immune adverse event, such as injection site pain or diarrhea, that is classified by how often it happens. An allergic reaction is an immune-mediated hypersensitivity response, which, if severe (like anaphylaxis), is explicitly listed as a contraindication (prohibition) to using the drug in regulatory documents.

Q: How long after finishing Claforan will the drug be completely out of my system?

Based on its short half-life of about 1 hour, the drug is generally considered cleared from the body within roughly 5 to 6 hours after the final dose in individuals with normal kidney function. It takes several half-lives for a medication to be completely eliminated.

Q: Why is it necessary to complete the full course of treatment with Claforan?

Official instructions specify that therapy is generally continued for a period after the patient demonstrates clinical improvement. This full duration is described in regulatory documents as necessary to minimize the risk of developing drug-resistant bacteria and ensure the infection is fully cleared.

Q: Why is Claforan sometimes given instead of amoxicillin or penicillin?

Claforan belongs to the third-generation cephalosporin class, which gives it certain advantages over older generations like penicillin. This class is known for increased stability against bacterial beta-lactamase enzymes, which are bacterial defense mechanisms. This difference in stability often allows it to be effective against a wider or different range of bacteria.

Q: Are there any major food or drink restrictions while using Claforan?

Official documents specifically note the potential for an interaction between Claforan and alcohol. There are typically no widespread restrictions on specific foods or non-alcoholic drinks noted in the primary product information.

Q: Is Claforan effective against MRSA or other 'superbugs'?

Claforan is a broad-spectrum antibiotic recognized for its activity against a wide range of bacteria. However, it is generally not active against specific multi-drug resistant organisms, such as MRSA (methicillin-resistant Staphylococcus aureus), according to its established antimicrobial spectrum.

Q: Why is Claforan usually given in a hospital setting?

Claforan is administered exclusively by parenteral routes (injection), and the medicine is supplied as a sterile powder that requires reconstitution with a liquid immediately prior to use. This required method of administration and preparation means it is often administered in a clinical or hospital setting by a professional.

Q: How does Claforan compare to other third-generation cephalosporins?

Claforan belongs to the class of third-generation cephalosporins, a group known for its potency. Within this class, Cefotaxime (Claforan) is recognized in official documents as a powerful systemic antibacterial agent, specifically noted for its effectiveness in treating certain severe infections like meningitis.

Q: What does it mean for Claforan to be a broad-spectrum antibiotic?

The term broad-spectrum is used to describe an antibiotic that is active against a wide range of bacteria. This means Claforan is effective against many types of Gram-negative and Gram-positive bacteria, allowing it to be used when a wide coverage against a potential infection is needed.

Q: What types of safety monitoring are typically done when a patient is on Claforan?

Official safety documents mention that renal function monitoring is a consideration when Claforan is used with other kidney-toxic drugs. Similarly, official information indicates that the monitoring of blood counts is sometimes required for treatment courses lasting longer than 7 to 10 days, due to the risk of blood disorders.

Q: Are there any long-term health concerns associated with using Claforan?

Serious adverse reactions are primarily noted in relation to the duration of treatment. The risk of developing certain blood disorders and superinfection (new infections from non-susceptible organisms) is documented with prolonged use, typically those lasting beyond one week.

Q: Are there specific symptoms that signal a more serious reaction to Claforan?

Official safety information lists rare but serious adverse events, including severe hypersensitivity reactions (allergic reaction) like anaphylactic shock, and severe skin reactions like Stevens-Johnson Syndrome (SJS). Neurotoxicity, which can involve confusion or convulsions, is also noted as a serious reaction, particularly for patients with kidney problems.

Q: Is it possible to use Claforan for patients on dialysis?

Regulatory documents describe that patients with severe renal impairment (kidney problems) require a dose reduction of the medicine to prevent drug accumulation. Patients on dialysis are covered under this restriction, meaning their use necessitates the dosage adjustment outlined in the official prescribing information.

How should Claforan be stored and disposed of?

Storage and Disposal of Claforan (Cefotaxime Sodium)

Claforan, supplied as a sterile powder, must adhere to strict regulatory storage and disposal requirements.

Storage Requirements

The unopened powder should be stored at Controlled Room Temperature (20 C to 25 C), kept in its original outer carton for protection from light, and must not be frozen.

Condition Requirement
Temperature Store at 20 C to 25 C.
Prohibited Do not freeze or store above 25 C.
Child Safety Keep out of the sight and reach of children.

Reconstituted Solution Stability

Claforan is for single use only. Once prepared, the solution is preferably used immediately. If necessary, it remains stable for up to 24 hours when refrigerated at 2 C to 8 C.

Disposal Instructions

Any unused portion must be discarded. The product must not be disposed of via wastewater or household waste and should be discarded strictly in accordance with local pharmaceutical waste requirements.

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

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