Peracef

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Peracef

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 Peracef

Quick Facts

Property Description
Active ingredient Cefoperazone (Cefoperazone sodium)
Form Sterile powder for injection
Pharmacological class beta-Lactam antibiotic, Third-generation cephalosporin
Common use Anti-infective for systemic bacterial infections
Origin Semi-synthetic (derived from Cephalosporium nucleus)

What Type of Medicine is Peracef?

Peracef is a trade name for a powerful anti-infective medicine. Its active substance, Cefoperazone, is classified as a third-generation cephalosporin, which is a type of semi-synthetic beta-Lactam antibiotic. This classification distinguishes Cefoperazone, derived chemically from the Cephalosporin nucleus, as a highly effective bactericidal agent. Third-generation cephalosporins offer enhanced stability against many bacterial enzymes, positioning Cefoperazone with a desirable broad-spectrum of activity against various bacterial strains.


Composition, Form, and General Purpose

The medication is supplied as Cefoperazone sodium, a sterile powder for injection. This formulation is a prescription-only medication (POM) that requires reconstitution with a suitable sterile diluent, such as an aqueous solution, to create an injectable solution necessary for parenteral administration (typically via intravenous or intramuscular injection). This injectable form is a key differentiator, indicating its use in clinical situations where immediate and high drug concentrations are required.

The overarching purpose of this single-agent product is to swiftly and directly kill susceptible bacteria. It achieves this by selectively targeting and inhibiting bacterial cell wall synthesis, a destructive action that supports patient recovery from serious, systemic bacterial infections.

Regulatory References

  1. Cefoperazone in the WHO Essential Medicines List (eEML)

What side effects are possible with Peracef?

Possible Side Effects and Safety Information

The official safety information for Peracef details documented adverse reactions and significant safety concerns, strictly organized by regulatory bodies.


Key Adverse Reaction Categories

Adverse reactions are classified by the system-organ classes they affect, including:

  • Blood and Lymphatic System Disorders: Documented effects include changes to blood cell counts (e.g., leukopenia, eosinophilia, thrombocytopenia) and potential coagulation disorders, requiring monitoring of blood parameters.
  • Gastrointestinal Disorders: Reactions include diarrhea and nausea. Severe, clinically significant reactions include pseudomembranous colitis, which may occur during or after treatment.
  • Immune System Disorders: This covers hypersensitivity reactions which can range from mild skin symptoms (rash, itching) to severe, life-threatening events such as anaphylaxis and severe cutaneous adverse reactions.
  • General Disorders and Administration Site Conditions: Reactions commonly occur at the injection site, such as pain, swelling, and inflammation.

Safety Restrictions and Monitoring

The regulatory profile highlights specific mandatory safety restrictions and requirements:

  • Contraindication: Peracef is formally contraindicated in patients with a history of hypersensitivity to cephalosporin antibiotics or a severe reaction to any other beta-lactam antibiotic (e.g., penicillin) due to the risk of cross-reactivity.
  • Renal Impairment: Caution is required and dose adjustment is necessary for patients with impaired kidney function to mitigate the risk of accumulation and potential toxicity, including neurotoxicity and seizures.
  • Coagulation: Monitoring of prothrombin time and other clotting factors may be required during prolonged or high-dose therapy due to documented changes in coagulation parameters.

This structure ensures that serious risks, such as severe allergies and organ system toxicities, are formally identified to guide the medicine’s safe use.

Overdose and Emergency Response

An overdose of Peracef (ceftazidime) can lead to serious neurological complications, particularly in patients with existing kidney impairment, as the drug is primarily cleared by the kidneys. Exceeding the prescribed dose can result in a buildup of the medication in the body, increasing the risk of central nervous system toxicity.

Symptoms of Overdose

Symptoms following an acute overdose may include:

  • Neurological Signs: Seizure activity (convulsions), encephalopathy (abnormal brain function leading to confusion, disorientation, or memory problems), asterixis (flapping tremor), and neuromuscular excitability (muscle twitching or jerking).
  • Severe Cases: In extreme instances, an overdose may lead to coma.

When to Seek Immediate Help

If you suspect an overdose, even if no symptoms are present, contact emergency medical services immediately or go to the nearest hospital emergency department.

Immediate medical attention is crucial if the following severe symptoms occur:

Symptom Category Signs of Concern
Neurological Seizures, sudden and severe confusion, loss of consciousness, or uncontrollable muscle movements.
Respiratory Difficulty breathing or changes in breathing rate.

Overdose management is supportive and may involve procedures such as hemodialysis or peritoneal dialysis in patients with poor kidney function to aid in the removal of the antibiotic from the bloodstream. Always inform healthcare providers about the exact amount of medication taken and when it occurred.

Therapeutic Uses of Peracef

What Peracef Treats: Main Uses and Benefits

Peracef (Cefoperazone) is a cephalosporin antibiotic that is commonly used across conditions presenting with acute episodes of bacterial infection. The medication is applied in clinical settings that involve acute or unstable symptom patterns, assisting with management of symptoms related to physical discomfort and systemic imbalance caused by the underlying irritative processes.

This therapy is relevant when supportive symptom management is appropriate for indications such as bacterial septicemia, meningitis, intra-abdominal infections, lower respiratory tract infections, and bone and joint infections.

Offers supportive relief when symptoms interfere with routine activities, contributing to easing the overall symptom load.

Its use may assist with maintaining functional stability, especially during phases when symptoms become more noticeable.

Quick Fact: Relief for Symptoms That Create Noticeable Physiological Strain.

Regulatory References

  1. NIH DailyMed Product Label for Ceftriaxone Sodium

Eligibility and Restrictions for Use

Who Can and Cannot Use Peracef?

The population eligibility for Peracef (Cefoperazone) is strictly defined by regulatory documents, focusing on contraindications, age limitations, and organ function.

Populations Who Must Not Use Peracef

Peracef is contraindicated for use in patients with a known history of hypersensitivity to Cefoperazone, the cephalosporin class of antibiotics, or a severe allergic reaction to any other beta-lactam antibiotic (such as penicillin).

Age-Group and Organ Function Restrictions

Population Group Regulatory Status
Pediatric (Children) Safety and effectiveness have not been established (Use Not Established).
Neonates/Premature Infants Use has not been extensively studied.
Hepatic Impairment Use requires caution; dosage adjustment is mandated for severe impairment due to the drug's primary elimination via the bile.
Pregnancy Should be used only if clearly needed (Pregnancy Category B).
Lactation Caution should be exercised when administering to nursing mothers.

Standard use is generally permitted for the adult and older adult populations. Additionally, patients with conditions like poor nutritional status or malabsorption states require specific monitoring due to an increased labeled risk of bleeding related to vitamin K deficiency.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory documents define specific interaction patterns for Peracef (Cefoperazone) based on pharmacodynamic reinforcement and altered substance metabolism. These documented interactions establish certain mandatory restrictions and monitoring requirements for co-administration.

Interactions Requiring Administration Restriction The co-administration of Ethanol (Alcohol) is strictly prohibited during therapy and for at least 72 hours (three days) after the final dose. This mandatory restriction is due to the potential for a severe disulfiram-like reaction, stemming from Cefoperazone's official interaction with Aldehyde Dehydrogenase.

Pharmacodynamic and Exposure-Modifying Interactions

  • Oral Anticoagulants (e.g., Warfarin, Acenocoumarol): Co-administration may increase the risk of bleeding due to pharmacodynamic effects that can lead to hypoprothrombinemia.
  • Nephrotoxic Agents (e.g., Aminoglycosides, certain NSAIDs): Concomitant use with Peracef may officially increase the risk or severity of nephrotoxicity.
  • Bile Acid Sequestrants (e.g., Cholestyramine): These agents require a mandatory timing separation and must be administered at least one hour before or four to six hours after Peracef to prevent reduced exposure.
  • Excretion Rate Reduction: Peracef may decrease the excretion rate of certain co-administered drugs, which can result in higher serum levels of those substances.

Population-Specific Considerations Official labeling notes that in patients with severe hepatic impairment, the drug's prolonged half-life may intensify the effects of these documented interactions.

Mechanism of Action

Irreversible Blockade of Cell Wall Construction

Peracef (Cefoperazone) works by a selective action focused entirely on the bacterial cellular machinery, leading to structural degradation and subsequent cell death. The drug acts as an irreversible inhibitor of Penicillin-Binding Proteins (PBPs), a class of essential bacterial enzymes that finalize the rigid peptidoglycan layer of the cell wall. By covalently binding to and deactivating these enzymes, the drug blocks the final stage of structural assembly, compromising the bacteria's physical integrity.

Triggering the Bactericidal Cascade

The molecular blockade of PBPs initiates a specific mechanistic cascade by disrupting the regulatory balance of the bacterial cell. This action inadvertently activates the cell's own autolytic enzymes (autolysins), which actively begin to degrade the existing cell wall structure. The combined effect of arrested assembly and active degradation leads to cell lysis (rupture) due to internal osmotic pressure, resulting in the drug's bactericidal effect and selective elimination of susceptible bacterial populations.

Constraints on Mechanistic Action

The mechanism is fundamentally constrained by bacterial defense strategies, primarily the production of beta-Lactamase enzymes that chemically inactivate the drug before it reaches the target. The destructive mechanism is also constrained in bacteria with mutated PBPs or those in a non-growing state, as the mechanism relies on the active process of cell wall synthesis to exert its action.

Dosage and Administration Information

The administration of Peracef (Cefoperazone sodium) is strictly parenteral, meaning it must be given by either the intravenous (IV) or intramuscular (IM) route. Since the medicine is supplied as a sterile powder, it always requires reconstitution using a compatible sterile diluent, such as 0.9% Sodium Chloride or 5% Dextrose in Water, before it can be used. For IV administration, the solution is typically infused over a 15 to 30 minute period. The IM route may require the use of a lidocaine solution as a diluent for higher concentrations to aid in proper physical administration.


The standard adult daily dosage is typically 2 to 4 grams per day, administered in equally divided amounts every 12 hours. In cases involving severe or refractory infections, the dosage may be increased up to a total of 8 grams per day. Dosing regimens for specific patient groups require procedural adjustments based on organ function: for patients with concurrent hepatic dysfunction, the daily dose generally must not exceed 2 grams without close monitoring due to the drug’s primary elimination pathway.

Pediatric dosing is based on weight, typically ranging from 50 to 200 mg/kg/day in divided doses. The length of therapy is variable, continuing for at least 48 hours after the necessary clinical response is achieved. If a dose is missed, standard practice is to take the missed dose as soon as it is remembered, but there is a warning against doubling the next scheduled dose.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Peracef

Evidence for use in Intra-Abdominal Infections

Research has studied Peracef (Cefoperazone), often combined with sulbactam, for treating serious infections inside the abdomen. The evidence was evaluated in short-term Randomized Controlled Trials (RCTs) involving hospitalized adults. Researchers focused on endpoints like the Clinical Success Rate (resolution of acute signs and symptoms) and Microbiological Eradication Rate (clearance of bacteria). Findings describe the patterns of measurements observed in the studies, providing insight into short-term changes.

Evidence for use in Lower Respiratory Tract Infections

Peracef was studied for severe lung infections like Hospital-Acquired Pneumonia (HAP) using Randomized Non-inferiority Trials. These studies monitored outcomes such as the Clinical Cure Rate and the resolution of changes monitored during the study period. Research has explored how outcomes evolved in study populations that included older adults with comorbidities. The evidence base is considered moderate in grade.

What is Still Uncertain about Peracef

A significant limitation across all indications is the heavy reliance on data derived from the Cefoperazone-Sulbactam combination, leaving the data for Cefoperazone used as a single agent less comprehensive. Additionally, follow-up durations were limited in most key studies (typically 5 to 14 days). Consequently, long-term effects are not fully established, particularly concerning infection recurrence or recovery outside the immediate post-treatment period. The results apply only to the populations studied, and evidence is limited for some special groups.

Frequently Asked Questions (FAQ)

Common questions about Peracef (FAQ)

Q: What is the main reason doctors prescribe Peracef?

A: The main reason doctors prescribe Peracef is because the medication is indicated for the management of various systemic bacterial infections. Official documents identify its use for infections affecting the respiratory tract, urinary tract, intra-abdomen, skin and soft tissue, bones and joints, and the genital tract.


Q: Does Peracef cause tiredness or dizziness?

A: According to the official safety profile, dizziness is listed as a reported adverse effect. However, tiredness is not listed among the commonly cited primary side effects in the core regulatory documents.


Q: Are there any common foods or drinks that interact with Peracef?

A: Regulatory documents state that the use of alcohol (ethanol) is strictly prohibited during therapy and for up to 72 hours afterward due to the risk of a severe disulfiram-like reaction. Official labeling does not define other restrictions for common non-alcoholic foods or beverages.


Q: What are the most common side effects reported with Peracef use?

A: Adverse reactions most frequently reported include gastrointestinal issues such as diarrhea, nausea, and vomiting. Other common effects include hypersensitivity reactions (like a rash) and local reactions at the injection site.


Q: What is the longest time a person usually takes Peracef for?

A: The length of treatment is variable and depends on the specific type and severity of the infection being managed. Official product information notes that therapy is generally continued for a minimum of 48 hours after the patient's symptoms show improvement or have resolved.


Q: Is it normal to feel a change in appetite while on Peracef?

A: A change in appetite, specifically loss of appetite (anorexia), is an adverse effect that has been reported in association with the use of Peracef.


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

A: Official drug interaction information notes that co-administration with certain Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) may increase the potential for nephrotoxicity (impact on kidney function). NSAIDs are a class of medication that includes common pain relievers.


Q: Is Peracef linked to weight changes?

A: Weight changes are not explicitly listed as one of the primary side effects of the drug itself. However, changes in weight (gain or loss) have been cited as a symptom associated with potential kidney damage (nephrotoxicity), a risk that is identified in safety labeling.


Q: Can older adults use Peracef safely?

A: Use in older adults is generally permitted, but official regulatory labeling advises caution for this population. A dosage adjustment is often advised because older adults are more likely to have age-related changes in kidney or liver function.


Q: How does Peracef affect blood pressure or heart rate?

A: Reported side effects have included changes in heart rhythm, such as experiencing a fast heartbeat. Changes in blood pressure are not listed as a primary side effect in the core documents.


Q: Are allergic reactions to Peracef common?

A: Peracef is known to cause hypersensitivity reactions, which can range from mild skin symptoms to rare, severe, and potentially fatal reactions like anaphylaxis. Official labeling states the drug is contraindicated for individuals with a history of allergy to cephalosporins or related antibiotics.


Q: Can Peracef be taken with vitamins or mineral supplements? / What if I'm taking herbal supplements—do they interact with Peracef?

A: Official patient information emphasizes the importance of reviewing all products being used, including herbal supplements, vitamins, and minerals, with a healthcare professional. This is advised to screen for potential interactions.


Q: Does Peracef have an official warning about driving or operating machinery?

A: Due to the potential for side effects such as dizziness (vertigo), the labeling highlights the need for caution regarding the ability to drive or operate complex machinery. Patients should be aware of these central nervous system effects.


Q: How long does Peracef stay in your system after the last dose?

A: The time it takes for the concentration of the drug in the blood to decrease by half, known as the serum half-life, is reported to be approximately 1.7 to 2.07 hours. This figure is reported based on data from individuals with normal kidney and liver function.


Q: What does the term 'contraindication' mean for Peracef?

A: A contraindication is a condition or factor that serves as a regulatory reason to withhold a medical treatment because of the harm it could cause a patient. For Peracef, the primary contraindication is a known severe hypersensitivity to the drug or related antibiotics.


Q: Does the time of day matter when taking Peracef?

A: The specific time of day for administration is not mandatory, but the drug must be administered in equally divided doses at regular intervals. The interval is crucial for maintaining the prescribed schedule and consistent administration.


Q: Are there any specific lifestyle changes recommended while taking Peracef?

A: The mandatory lifestyle restriction defined in the labeling is the strict prohibition of alcohol (ethanol) during treatment and for up to 72 hours after the final dose. There are no other general, mandatory lifestyle recommendations listed in the official documents.


Q: Does taking Peracef make you sensitive to the sun?

A: Official safety information notes that this drug, or drugs in its pharmacological class, may potentially cause photosensitivity. This means there is an increased sensitivity or reaction to sunlight.


Q: What are the signs that Peracef is starting to work?

A: The clinical goal of the medication is the resolution of acute signs and symptoms that led to treatment, such as a reduction in fever, pain, or local inflammation. This is how research studies measure effectiveness.


Q: What is the purpose of the black box warning on Peracef's label?

A: The official regulatory document does not currently include a Black Box Warning (BBW) for the single-agent drug Peracef. The BBW is the strongest safety alert that is reserved for medications that carry certain serious risks.


Q: Does Peracef interact with birth control pills?

A: Official interaction documentation states that Peracef may potentially reduce the effectiveness of estrogen-containing birth control pills.


Q: What is the average time before Peracef reaches its peak effect in the body?

A: Since the drug is administered via an intravenous (IV) infusion, the highest concentration of the drug in the bloodstream (peak serum level) is reached at the conclusion of the 15 to 30-minute intravenous infusion.


Q: Are there specific tests needed before starting Peracef?

A: The primary requirement before starting therapy is a careful inquiry into the patient's history of allergies to cephalosporins or other beta-lactam antibiotics. Monitoring of renal and hepatic function is often considered based on the patient's medical history.


Q: Is Peracef considered a high-risk medication?

A: The official safety labeling highlights several serious documented risks, including the potential for severe allergic reactions (anaphylaxis), serious hemorrhage (bleeding), and potentially life-threatening severe diarrhea (CDAD).


Q: What does 'research evidence supports the use of Peracef' actually mean?

A: Research support means that the drug has been formally evaluated in controlled clinical trials such as Randomized Controlled Trials (RCTs). These studies demonstrated specific clinical outcomes like clinical success (symptom resolution) and the clearance of bacteria.


Q: Is Peracef commonly prescribed in conjunction with other treatments?

A: Peracef is often studied and prescribed as a fixed-dose combination with the drug Sulbactam. This combination is commonly used for treating a broad range of systemic infections.

How should Peracef be stored and disposed of?

How to Store and Dispose of Peracef?

The storage and disposal requirements for Peracef (Cefoperazone sodium sterile powder for injection) are defined by regulatory labeling to ensure product integrity and safety.


Official Storage Conditions

Product Form Storage Requirement Stability Constraint
Unreconstituted Powder Store at or below 30°C (86°F) and protect from light. Store until the expiration date.
Reconstituted Solution Temperature-dependent: e.g., 24 hours at room temperature or up to 5 days when refrigerated (2°C–8°C). Do not refreeze thawed solution.

Disposal and Safety Rules

  • Child Safety: The medication must be kept out of the sight and reach of children.
  • Handling: Unused portions of the prepared solution must be discarded after the specified stability period has ended.
  • Environmental Disposal: Disposal of unused or expired product must be done according to local regulations and must not enter wastewater systems or general household trash.

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

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