Cepime

Quick links to important sections

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 Cepime

Quick Facts About Cefepime

Property Description
Active ingredient Cefepime hydrochloride
Form Lyophilized powder for injection
Pharmacological class Fourth-generation Cephalosporin Antibiotic
General use Eliminating serious bacterial infections
Origin Synthetic (chemically manufactured)

Identity and Pharmacological Classification

The medicine known by the trade name Cepime is based on the active substance Cefepime hydrochloride, a synthetic compound. This medicine is a single-ingredient product classified as a fourth-generation cephalosporin, positioning it within the larger beta-lactam family of antimicrobial agents. The classification as a fourth-generation agent reflects its advanced structure, which provides a broad spectrum of antimicrobial activity against a wide array of susceptible bacteria. Cefepime has demonstrated activity against certain Gram-negative bacteria that may be resistant to older antibiotic classes, establishing its role in modern infectious disease management.


General Purpose and Bactericidal Action

The general purpose of Cefepime is to serve as a potent bactericidal agent—a medicine that actively destroys the bacteria responsible for infection. Cefepime achieves this by targeting and interfering with the process of bacterial cell wall synthesis, a function critical for the integrity and survival of the microbial organism. This direct killing action is a defining feature of the medicine, clinically recognized for its necessity in treating serious, systemic infections.

Cefepime's status as a critically important antimicrobial is recognized by health authorities. Its inclusion on the Model List of Essential Medicines underscores its necessity and clinical utility. The drug is supplied as a sterile, lyophilized powder for solution for injection. This powder must be reconstituted and is administered via the parenteral route, such as intravenous (IV) or intramuscular (IM) injection, which is the standard method for agents requiring rapid distribution to treat severe, systemic infections.

Regulatory References

  1. WHO Essential Medicines List
  2. The WHO's inclusion

What side effects are possible with Cepime?

Possible Side Effects and Safety Information

Cepime (Cefepime) is generally associated with a risk profile common to the cephalosporin class of antibacterial drugs. All official safety information is derived from regulatory governmental documents, without interpretation.

Key Adverse Reactions

The most common adverse reactions (incidence ge 1%) reported in clinical trials include local reactions at the injection site (e.g., pain, inflammation), rash, and diarrhea. A positive direct Coombs' test without hemolysis is a very common laboratory finding (incidence ge 10%).

Serious and Clinically Significant Risks

Serious adverse reactions primarily involve the nervous system. These include life-threatening or fatal occurrences of encephalopathy (altered consciousness, confusion, stupor, or coma), myoclonus, and seizures (including nonconvulsive status epilepticus). Most such cases occurred in patients with underlying renal impairment who did not receive appropriate dosage adjustment.

Other serious risks include Clostridioides difficile-associated diarrhea (CDAD), which may range from mild diarrhea to fatal colitis, and severe hypersensitivity reactions (e.g., anaphylaxis, severe skin reactions). Cepime is contraindicated in patients with a history of immediate hypersensitivity to Cepime, cephalosporins, penicillins, or other beta-lactam antibiotics.

Population-Specific Safety Notes

Caution and mandatory dosage adjustment are required for all patients with compromised renal function (creatinine clearance le 60 mL/min) to minimize the risk of neurotoxicity. Elderly patients, who are more likely to have reduced renal function, should be closely monitored for dosage appropriateness.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile indicates that overdose with Cepime primarily results in severe Central Nervous System (CNS) Neurotoxicity due to elevated concentrations of the drug in the body. Overdose manifestations have been associated with life-threatening or fatal occurrences.

Manifestation Category Documented Clinical Presentations
Neurological Signs Encephalopathy (including confusion, stupor, and coma), Myoclonus (muscle twitching), Seizures (convulsive and Nonconvulsive Status Epilepticus), and Aphasia (speech difficulty).

The risk of these neurotoxic manifestations is explicitly linked to high serum concentrations, occurring particularly in patients with renal impairment and geriatric individuals who may not have received appropriate dosage considerations.

Regulatory guidance mandates that immediate medical attention must be sought for any signs of severe neurotoxicity, such as an altered mental status, confusion, or decreased responsiveness. Upon the suspicion of overdose, the medicine must be discontinued. No specific chemical antidote is known; therefore, official management involves symptomatic and supportive treatment. In severe overdosage, hemodialysis is the documented procedural measure recommended to accelerate the removal of Cepime from the body.

Therapeutic Uses of Cepime

What Cepime Treats: Main Uses and Benefits

The primary therapeutic benefit of Cepime is addressing the bacterial source of serious and complicated infections across several major organ systems. This medicine is commonly used for conditions characterized by periods of heightened symptoms and supports symptomatic relief by addressing the underlying illness.

“It is commonly used in clinical settings that involve acute or unstable symptom patterns, where short-term symptomatic assistance is needed.”

This medicine is primarily applied to manage the bacterial source of serious, systemic infections like severe pneumonia and bloodstream infections (bacteremia), complicated urinary tract infections (cUTI), and complicated intra-abdominal infections. It is also utilized in providing treatment (empiric coverage) for high-risk patients with febrile neutropenia (fever in immunocompromised patients).

When applied in these conditions, this medication is used to address the deep-seated infection and helps reduce pronounced, associated symptoms like intense localized pain and systemic distress, which contributes to easing the symptom load during recovery.

Quick Fact: Relief for Systemic Discomfort

Property Description
Primary Therapeutic Goal Managing the bacterial source of severe infections.
Symptom Focus Helps manage fever and intense localized pain linked to systemic imbalance.
Common Clinical Context Applied in hospital settings for acute, complicated infections.
Patient Benefit Contributes to easing the symptom load during difficult episodes.

Regulatory References

  1. NIH MedlinePlus overview of Cefepime

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Cepime — Official Regulatory Information

The eligibility profile for Cepime is strictly defined by government regulators, focusing on a patient's hypersensitivity status, age, and organ function.


Eligibility Scope

Populations for whom use is contraindicated:

  • Patients with a known immediate hypersensitivity reaction to Cefepime itself.
  • Patients with a history of immediate hypersensitivity to other cephalosporins or related beta-lactam antibacterial drugs (e.g., penicillins).

Age-related eligibility rules:

  • Use is approved for Adults and for pediatric patients aged 2 months up to 16 years.
  • Safety and effectiveness have not been established for use in infants younger than 2 months.

Condition-specific eligibility rules:

  • Renal Impairment: Patients with impaired kidney function (Creatinine Clearance leq 60 mL/min) are eligible, but use is restricted and conditional upon a dosage modification. This adjustment is necessary due to the drug's primary elimination pathway.
  • Hepatic Impairment: No restriction applies; use is permitted without a dosage adjustment.

Pregnancy and lactation eligibility status:

  • Use in Pregnant Women and Lactating Women is conditional. It should only be used if the potential benefit is determined to justify the potential risk, as the medicine is excreted in human breast milk.

Eligibility Classifications (High-Level)

Eligibility severity classification (as defined in official documents):

  • Contraindicated: Absolute non-eligibility due to hypersensitivity reactions.
  • Conditional/Restricted Use: Requires caution, dose adjustment, or a formal risk-benefit assessment (e.g., renal impairment, pregnancy).
  • Not Established: Populations for whom safety and effectiveness data are explicitly lacking (e.g., infants under 2 months).

Connection to the overall eligibility profile (2–4 sentences): Official regulatory documents define who can and cannot use the medicine by first establishing an absolute exclusion for individuals with a history of beta-lactam hypersensitivity. For approved populations, use is further defined by conditional restrictions mandated by the patient's renal function status and physiological states like advanced age, ensuring the drug is used within official, well-defined boundaries.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documentation requires monitoring and caution when Cepime is used with certain other medicines, primarily due to the potential for increased toxicity or reduced efficacy of co-administered products.

Documented Pharmacological Interactions

Interacting Product Category Practical Regulatory Implication
Aminoglycoside Antibiotics Requires close monitoring of renal function due to increased risk of nephrotoxicity and/or ototoxicity.
Potent Diuretics (e.g., Furosemide) Requires monitoring of renal function due to increased risk of nephrotoxicity.
Anticoagulants (e.g., Warfarin) Requires close monitoring of prothrombin time (PT/INR) due to a potential increase in the risk of bleeding.
Hormonal Contraceptives (Oral) Alternate or additional non-hormonal contraception may be advisable due to potential reduced contraceptive effectiveness.
Live Vaccines (e.g., Typhoid, Cholera, BCG) Concurrent use is generally not recommended due to the potential for interference leading to reduced vaccine efficacy.

Interaction with Laboratory Tests

Cepime may cause a false-positive reaction for glucose in urine when tests utilizing copper-reduction methods (such as Clinitest tablets) are used. The use of glucose oxidase enzyme-based methods is recommended for urine glucose testing to avoid this issue.

Mechanism of Action

Irreversible Disruption of Bacterial Cell Wall

Cepime exerts its primary effect through the covalent binding and inhibition of bacterial Penicillin-Binding Proteins (PBPs), a class of transpeptidase enzymes essential for cell wall assembly. Acting as a structural mimic of the peptidoglycan precursor, the drug permanently deactivates the PBPs, halting the crucial process of peptidoglycan cross-linking. This molecular blockade results in a structurally defective cell wall, triggering the activation of the bacteria's own autolysin enzymes. The resulting cellular rupture, known as osmotic lysis, leads to a bactericidal effect.

Off-Target Influence on CNS Inhibitory Signaling

Structurally, the molecule's zwitterionic character facilitates enhanced outer membrane penetration into Gram-negative bacteria and provides stability against certain defense enzymes, such as AmpC beta-lactamases, supporting sustained activity at the target site. Separately, the drug's secondary action involves crossing the blood-brain barrier where it functions as an antagonist at mammalian gamma-aminobutyric acid (GABA A) receptors. This non-therapeutic interaction suppresses the brain's primary inhibitory tone, which can result in neuronal hyperexcitability, defining a functional constraint of the mechanism.

Dosage and Administration Information

The medicine Cepime (Cefepime) is supplied as a lyophilized powder and is intended for parenteral administration, primarily via intravenous (IV) infusion in a medically supervised setting. The official administration process requires the powder to be first reconstituted and then further diluted into a solution before use. Intravenous administration is typically performed as an infusion over approximately 30 minutes. While the IV route is standard for all approved uses, the intramuscular (IM) injection route may be indicated for specific, mild-to-moderate urinary tract infections.

Standard adult dosing for patients with normal kidney function (Creatinine Clearance > 60 mL/min) typically involves doses ranging from 0.5 g to 2 g. The frequency is either every 8 hours or every 12 hours depending on the infection type, with the higher 2 g dose administered q8h reserved for severe conditions like empiric treatment for febrile neutropenia. Therapy duration generally ranges from 7 to 10 days.

A critical procedural constraint is the mandatory dose reduction or interval extension for patients with confirmed renal impairment (CrCL le 60 mL/min). For complicated intra-abdominal infections, Cefepime is structurally used in combination with metronidazole. Pediatric dosing for patients between 2 months and 16 years of age is based on body weight at 50 mg/kg per dose.

Recent Clinical Evidence

Research Evidence: Overview of Studies for Cepime

The research evidence for Cefepime comes primarily from Randomized Controlled Trials (RCTs) and comprehensive Systematic Reviews conducted by scientific and regulatory bodies. This research has explored outcomes when Cefepime was studied for serious bacterial infections. Studies help show what has been observed so far, providing context but not individual predictions.


Evidence for Use in Febrile Neutropenia

Research has explored Cefepime's use as an initial, or empiric, treatment for patients who develop a fever while having a low white blood cell count (neutropenia). These studies were conducted during periods of increased symptom activity in hospitalized adults and children. Researchers primarily tracked outcomes related to clinical success, such as the patient's change in fever and other infection signs. Findings describe patterns observed in the studies regarding the measured change in acute symptoms. However, the consistency of findings related to mortality across different meta-analyses has been discussed. Furthermore, research examined outcomes only up to the immediate period of recovery from neutropenia, meaning that long-term effects are not fully established.

Evidence for Use in Complicated Urinary Tract Infections (cUTI)

Cefepime was studied in trials that focused on conditions characterized by complicated urinary tract infections, including acute pyelonephritis. These studies often used a design called a non-inferiority trial, where research has explored the relationship between Cefepime's outcomes and those of other standard antibiotics. The data show patterns related to the measured change in the presence of bacteria from the urinary system and the changes in systemic outcomes linked to the infection.

What Research Shows About Evidence Quality and Uncertainty

The overall body of research for Cefepime's approved uses is based on a significant volume of research, including Randomized Controlled Trials and comprehensive regulatory reviews. Studies help show what has been observed so far, but findings describe group patterns, not personal outcomes. Key limitations include the fact that most recent research focuses on combination therapies to address growing bacterial resistance, meaning comparative evidence for Cefepime monotherapy with respect to some modern strains is not broadly available. Additionally, subgroup findings are uncertain in some specialized patient populations, suggesting more research is ongoing.

Key Studies & References

  1. Cefepime - StatPearls (NIH Bookshelf)
  2. Cefepime on the WHO Essential Medicines List (WATCH Group)

Frequently Asked Questions (FAQ)

Common questions about Cepime (FAQ)

Q: Does Cepime work against staph infections?

Regulatory documents state that Cepime is active against certain types of Staphylococcus aureus bacteria, specifically those categorized as methicillin-susceptible (MSSA) isolates. However, activity is not supported against methicillin-resistant strains.


Q: Is Cepime only given in the hospital?

According to the official product information, Cepime is intended for parenteral administration (via injection), typically as an intravenous (IV) infusion in a medically supervised setting. The intramuscular (IM) injection route is included in some regulatory labels for specific, mild-to-moderate urinary tract infections.


Q: What kind of bacteria is Cepime meant to fight?

Official information describes Cepime as a broad-spectrum antibiotic used to treat infections caused by a wide range of susceptible bacteria. This includes many Gram-positive bacteria and Gram-negative bacteria, notably including serious pathogens such as Pseudomonas aeruginosa.


Q: How quickly does Cepime start working after the first dose?

Since Cepime is administered as an intravenous infusion, it rapidly achieves its maximum plasma concentration in the body shortly after the 30-minute infusion is completed. This rapid delivery is intended to quickly reach concentrations associated with its bactericidal activity.


Q: What is the risk of developing a new infection while on Cepime?

Studies and official information indicate that using antibacterial drugs like Cepime can increase the risk of certain new infections, commonly called superinfections. A specific and serious risk reported is Clostridioides difficile-associated diarrhea (CDAD), which can occur during or after treatment.


Q: Is it normal to feel extra tired after receiving Cepime?

A general feeling of tiredness or weakness is listed among the adverse reactions that have been reported with the use of Cepime. While specific frequency data is often not available for every symptom, this side effect has been noted in patients receiving the drug.


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

The time it takes for half the drug to be eliminated from the body is known as the elimination half-life. In healthy adults with normal kidney function, the average elimination half-life of Cepime is described in official documents as approximately 2.0 hours.


Q: Can Cepime treatment affect my liver tests?

Regulatory documents indicate that patients have experienced transient, or temporary, elevations in certain liver enzymes, such as ALT and AST, during clinical trials. The labeling describes these changes as typically transient.


Q: How does the scientific evidence describe the use of Cepime for severe pneumonia?

The official product labeling indicates that Cepime is an approved treatment option for moderate-to-severe pneumonia. Its use is supported by scientific evidence examining its activity against the susceptible bacteria commonly responsible for this condition.


Q: What is the most frequently mentioned side effect in patient discussions about Cepime?

Official adverse reaction data from clinical trials (incidence ge 1%) report that the most common events include local reactions at the injection site (pain or inflammation), rash, and diarrhea.


Q: How is the safety profile of Cepime generally described in official documents?

The safety profile is defined by official documents, which detail common adverse reactions, serious risks (such as the potential for neurotoxicity or seizures), and explicit contraindications for patients with hypersensitivity to beta-lactam antibiotics.


Q: Is it common to feel stomach upset when receiving Cepime?

Official information lists diarrhea as a common adverse reaction that can occur with Cepime. Other forms of gastrointestinal upset, including nausea and vomiting, are also listed among the reported side effects.


Q: What are some reasons why a doctor might choose Cepime over a different antibiotic?

Regulatory documents cite the drug’s advanced structure, which provides a broad spectrum of activity against many bacterial types. Its stability against certain defense enzymes (like AmpC beta-lactamases) is a characteristic relevant to its approved uses against certain resistant Gram-negative strains.


Q: Can Cepime treatment affect blood sugar levels?

The medicine may cause a false-positive reaction for glucose when testing urine using older copper-reduction methods. Because of this interference, official guidance recommends the use of glucose oxidase methods for accurate urine testing.


Q: Is Cepime used to prevent infections or only to treat them?

The medicine is officially indicated to treat established infections. It is also indicated for use in febrile neutropenic patients, where it is used as empiric therapy (an initial treatment targeting suspected pathogens).


Q: How does the drug information describe the potential for drug fever with Cepime?

Fever is simply listed as one of the reported adverse reactions in patients receiving Cepime, according to official product information.


Q: Is the clinical evidence for Cepime considered recent or decades old?

The established body of clinical evidence includes foundational studies that led to the drug's initial approval in 1994. Research is ongoing, with more recent studies focusing on its use in combination therapies to address the continuous evolution of bacterial resistance.

How should Cepime be stored and disposed of?

The storage and disposal of Cefepime (Cepime) must strictly follow the official instructions documented in the product labeling to ensure stability and safety.

Required Storage Conditions

Product State Temperature Stability Period (Maximum)
Unreconstituted Powder Controlled Room Temperature (20 C to 25 C) Until expiration date
Reconstituted Solution Refrigerated (2 C to 8 C) 7 days
Room Temperature Solution Controlled Room Temperature 24 hours

Store the dry powder in its original container and protect from light [1, 2]. Do not use solutions that contain an insoluble precipitate or if the container is not intact [3].

Handling and Disposal

  • Child Safety: The medication must be kept out of the sight and reach of children [4].
  • Thawing: Do not force thaw frozen solutions by using microwave radiation or water baths [3].
  • Disposal: Dispose of any unused product, waste material, or expired medicine in accordance with local requirements [5]. Official guidance advises against disposing of medicine via household waste or wastewater [4].

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

Available in countries:

Equivalent of Cepime found in:

A-Z Index: