Cefmate

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Cefmate

Medically reviewed

Rosario Oropesa

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 Cefmate

What is Cefmate? Composition and Pharmacological Class

This foundational section defines the identity and classification of Cefmate (Cefoperazone/Sulbactam), strictly focusing on its nature and composition.

Property Description
Active Ingredients Cefoperazone, Sulbactam
Form Dry powder for injection
Pharmacological Class β-Lactam Antibiotic & β-Lactamase Inhibitor Combination
Common Use Anti-infective agent for bacterial infections
Origin Semisynthetic

Cefmate is a definitive, prescription-only combination drug used as a potent anti-infective agent to treat serious bacterial infections. Its composition is based on two distinct active components with complementary roles: Cefoperazone and Sulbactam. Cefoperazone, the primary germ-killer, is classified as a semisynthetic β-lactam antibiotic belonging to the third-generation cephalosporin group.


Cefoperazone and Sulbactam: A Synergistic Combination for Anti-Infective Use

The two ingredients are combined to achieve a powerful synergistic effect in anti-bacterial treatment, enabling the medicine to target complex infections that might otherwise resist single-drug therapy. Cefoperazone performs the core bactericidal effect by interfering with the bacteria's essential cell wall synthesis. Other well-known brands containing this identical formulation include Magnex and Sulcefozone.

The critical role of the second component, Sulbactam, is to protect the Cefoperazone from bacterial defenses. Many resistant bacteria produce specialized β-lactamase enzymes that function as a defense mechanism to chemically destroy the antibiotic. The combination of Cefoperazone and Sulbactam provides broad-spectrum coverage against clinically important pathogens. This indicates that the combination is recognized for its role in fighting a variety of difficult bacteria. This medicine is designed for systemic action and is administered via the parenteral use route (intravenous or intramuscular injection). Sulbactam chemically belongs to the β-lactamase inhibitor class. This designation confirms that Sulbactam’s primary function is to block the bacterial enzymes that would normally inactivate the antibiotic.

Regulatory References

  1. NIH: Sulbactam class
  2. NIH: Sulbactam designation

What side effects are possible with Cefmate?

Possible Side Effects and Safety Information

The official safety profile for Cefmate (Cefoperazone/Sulbactam) is defined by structured adverse reaction data and specific constraints documented by government regulatory authorities.

Frequency-Classified Adverse Reactions

Adverse reactions are formally categorized based on frequency observed in clinical data, as presented in regulatory documents:

  • Very Common (Affecting 1 in 10 patients): Increases in liver enzymes (Alanine aminotransferase, Aspartate aminotransferase, Alkaline phosphatase) and changes in blood cell counts, such as neutropenia and leukopenia.
  • Common (Affecting 1 in 100 to < 1 in 10 patients): Gastrointestinal effects like diarrhea, as well as coagulopathy (bleeding disorder), nausea, and vomiting.
  • Uncommon (Affecting 1 in 1,000 to < 1 in 100 patients): Skin reactions including rash, pruritus (itching), and local reactions such as pain or inflammation at the injection site.

Serious Adverse Reactions and Safety Constraints

Official labeling documents certain adverse events due to their clinical significance:

  • Serious Reactions: These include anaphylaxis (severe hypersensitivity), hemorrhage (bleeding problems, sometimes fatal), and Severe Cutaneous Adverse Reactions (SCARs) like Stevens-Johnson Syndrome (SJS). The potential for Clostridium difficile associated diarrhea (CDAD), ranging from mild to fatal colitis, is also documented.
  • Population Notes: Safety information includes specific constraints for patients with renal or hepatic impairment, where monitoring and potential dose adjustments are necessary due to altered component clearance. Periodic monitoring is also advised for neonates and infants.
  • Exposure Patterns: A Disulfiram-like reaction (flushing, headache, tachycardia) is noted when alcohol is consumed during or shortly after administration. Additionally, CDAD is officially documented as having a delayed onset, potentially occurring months after treatment is stopped.

This structure ensures the risks are formally communicated, highlighting the effects on the blood, liver, and gut as key systems documented in the medicine’s safety profile.

Overdose and Emergency Response

Overdose and When to Seek Help

Overexposure to Cefmate is officially expected to produce manifestations that are principally an extension of the adverse reactions reported with the drug. Documented systemic signs observed in contexts of drug accumulation include flushing, sweating, headache, and tachycardia (fast heart rate).

Overdosage carries the risk of severe, life-threatening outcomes, including serious and occasionally fatal hypersensitivity (anaphylactic) reactions. Other severe complications cited in regulatory documents include fatal colitis (an extreme presentation of Clostridium difficile-associated diarrhea) and haemorrhage cases, which have also been reported as sometimes fatal.

Immediate emergency medical attention is required for any signs consistent with a serious hypersensitivity reaction. Official guidance mandates immediate emergency treatment with epinephrine, along with the administration of oxygen, intravenous steroids, and airway management (including intubation) as indicated. The drug must be discontinued, and appropriate therapy instituted.

There is no specific antidote for Cefmate overdosage. Management focuses on symptomatic and supportive treatment. Hemodialysis is documented as a procedural option that may be utilized to enhance the elimination of the drug from the body. Population-specific considerations emphasize that patients with concurrent hepatic dysfunction and renal impairment are at increased risk of accumulation due to reduced drug clearance and may require monitoring of cefoperazone serum concentrations.

Therapeutic Uses of Cefmate

What Cefmate Treats: Main Uses and Benefits

This medication is commonly used across conditions presenting with systemic or localized discomfort that is applied in clinical settings that involve acute or unstable symptom patterns for bacterial disease. Cefmate is relevant for easing the pronounced symptoms that interfere with daily functioning and is applied in addressing conditions marked by increased physiological stress. These therapeutic domains include infections of the bloodstream (septicemia), the lower respiratory tract, intra-abdominal abscesses, complicated urinary tract infections, and infections caused by multidrug-resistant (MDR) bacteria.

The use may assist in addressing the challenge of bacterial resistance, which contributes to easing the overall symptom load in contexts involving heightened systemic burden. The treatment provides supportive relief that helps patients cope more steadily with difficult, acute episodes, supporting a more manageable experience during the symptomatic period.


Quick Fact: Relief for Systemic Imbalance

Cefmate is applied in clinical settings that involve acute or unstable symptom patterns, may assist with managing symptoms related to systemic imbalance associated with conditions involving inflammatory or irritative processes.

Regulatory References

  1. World Health Organization (WHO) document

Eligibility and Restrictions for Use

Who Can and Cannot Use Cefmate?

The population eligibility for Cefmate (Cefoperazone/Sulbactam) is defined by governmental regulatory documents, establishing absolute prohibitions and conditions for restricted use.


Contraindications (Who Must Not Use)

Cefmate is contraindicated in patients with a known history of hypersensitivity or allergy to Cefoperazone, Sulbactam, any cephalosporins, or any penicillins. This is an absolute regulatory exclusion due to the risk of life-threatening cross-reactivity with these beta-lactam antibiotics.


Restrictions and Special Considerations

Population Group Eligibility Status (Regulatory Wording)
Adults and Older Adults Generally permitted for use.
Children and Infants Use has been effectively established, though not extensively studied in premature infants or neonates.
Renal Impairment Restricted use for marked decrease in renal function (creatinine clearance < 30 mL/min); dose adjustment is necessary.
Hepatic Impairment Restricted use in severe biliary obstruction or severe hepatic disease. Dosage should generally not exceed 2 g/day of Cefoperazone without close monitoring.
Pregnancy Use should be considered only if clearly needed.
Lactation Caution should be exercised as the drug is excreted into breast milk.

Eligibility is also restricted for patients with combined hepatic and renal impairment or those with conditions like poor diet or malabsorption, who require close monitoring for the risk of Vitamin K deficiency.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents define the interaction profile of Cefmate (Cefoperazone/Sulbactam) primarily through required monitoring, mandatory restrictions, and identified additive risks.


Documented Interaction Constraints

Interacting Agent Official Interaction Pattern Required Regulatory Action
Alcohol (Ethanol) Risk of a disulfiram-like reaction (flushing, headache, tachycardia). Mandatory avoidance during treatment and for up to the fifth day following the final dose.
Oral Anticoagulants Increased risk of bleeding and coagulopathy due to interference with vitamin K-dependent clotting factors. Mandatory monitoring of prothrombin time (or INR).
Aminoglycosides Risk of additive nephrotoxicity (increased kidney damage risk). Mandatory monitoring of renal function during concomitant use.

Population-Specific Interaction Notes

The pharmacokinetic interaction risk is heightened in patients with Hepatic or Biliary Dysfunction. In this population, the serum half-life of the Cefoperazone component is prolonged, which can officially lead to drug accumulation, particularly if combined with reduced renal function.

The overall interaction structure is defined by clinically significant warnings that require procedural adjustments to mitigate the documented risks associated with co-administration.

Mechanism of Action

How Cefmate Works: Mechanism of Action

Inhibiting Bacterial Defense Enzymes

This mechanism describes the action of the ingredient Sulbactam, which functions as an irreversible inhibitor. It targets and permanently deactivates bacterial beta-lactamase enzymes, which resistant bacteria produce to hydrolyze the primary antibiotic. This interaction supports the stability of the beta-lactam antibiotic at the target site, thereby restoring and supporting its intrinsic mechanistic capability in the presence of beta-lactamase.

Blocking Cell Wall Construction

This mechanism describes the action of Cefoperazone. It interferes with the essential Penicillin-Binding Proteins (PBPs), which are bacterial enzymes required for the final, cross-linking step of peptidoglycan synthesis. This interference causes the bacteria to build a structurally defective cell wall. The compromised wall is unable to withstand internal osmotic pressure, leading to rapid cell rupture (lysis), a physiological consequence that contributes to the destruction of susceptible bacterial cells.

Dosage and Administration Information

The administration of Cefmate (Cefepime) must be managed by a healthcare professional as it is prepared and given via intravenous (IV) infusion or intramuscular (IM) injection.

Administration Scope

The required dose and frequency are determined by the patient’s age, weight, and kidney function. For adults with normal renal function, doses range from 0.5 grams to 2 grams, typically given every 8 or 12 hours. The maximum recommended daily adult dose should not be exceeded.

Age Group Usual Dosing Schedule (Normal Renal Function)
Adults 0.5 g to 2 g every 8 or 12 hours.
Pediatrics (2 months to 16 years) 50 mg per kg per dose every 12 hours.

Procedural and Dosing Rules

  • Route: The drug is administered via IV infusion or IM injection. IV administration is typically given over approximately 30 minutes.
  • Dose Adjustment: Dosage must be reduced in patients with decreased kidney function (creatinine clearance le 60 mL/min), including the elderly.
  • Preparation: For IV infusion, the powder must be reconstituted and/or diluted before use. Pre-filled frozen containers should not be forced-thawed using water baths or microwave irradiation.
  • Timing: Administration is based on fixed time intervals (e.g., every 8 hours or 12 hours), and there are no specific instructions regarding administration with or without food.

Recent Clinical Evidence

Cefmate: Recent Clinical Evidence

Research Evidence for Intra-Abdominal Infections

The combination was evaluated in Randomized Controlled Trials (RCTs) and systematic reviews focusing on intra-abdominal infections in Adults. Studies explored clinical efficacy and microbiologic eradication. Findings described patterns where outcomes were often reported as comparable (non-inferior) to other anti-infective treatments, though consistency of findings varies across different patient groups.

Research Evidence for Febrile Neutropenia

Cefmate was also evaluated in research exploring the empirical use for febrile neutropenia, a high-risk condition in patients undergoing chemotherapy, including Adults and Children. Researchers measured treatment success and mortality. Studies explored success rates that were associated with outcomes comparable to other established regimens, but comparative evidence is lacking for a clear claim of superiority.

Research Evidence for Bloodstream and Severe MDR Infections

For severe systemic infections, particularly those caused by Multidrug-Resistant (MDR) bacteria, the evidence remains less certain. Data for these complex cases are often derived from aggregated Observational Cohort Studies rather than dedicated large RCTs, meaning the results may be subject to factors like patient selection bias.

Evidence in Specific Patient Groups

Specific analyses were observed in studies focusing on Children and Older Adults with severe comorbidities. Research highlights changes measured during the study period for these critically ill populations. However, data for certain groups are less comprehensive, and subgroup findings are uncertain due to reliance on smaller study sizes.

Observation Periods and Key Limitations

Clinical research generally focuses on the acute treatment phase and short-term outcomes, with follow-up durations typically limited to weeks. Therefore, long-term effects are not fully established. The primary research gaps involve the reliance on observational data for MDR infections and the need for more comprehensive long-term evidence.

Key Studies & References

  1. WHO Expert Committee on the Selection and Use of Essential Medicines: Cefoperazone–sulbactam Monograph
  2. MedlinePlus Drug Information: Sulbactam Injection

Frequently Asked Questions (FAQ)

Common questions about Cefmate (FAQ)


Q: Is Cefmate a penicillin-type medication?

A: Official information confirms that the drug is a cephalosporin, which belongs to a different family of antibiotics than penicillin. However, due to the risk of allergic cross-reactivity, it is contraindicated in patients with a known severe allergy to penicillins.

Q: Are there any foods or drinks I need to avoid while on Cefmate?

A: Official labeling states that alcohol avoidance is mandated during treatment and for up to five days after the final dose. This is because consuming alcohol can trigger a severe reaction that causes flushing, headaches, and a rapid heart rate. No specific restrictions on foods or non-alcoholic drinks are typically noted.

Q: What is the difference between Cefmate and other 'ceph' drugs?

A: The primary active component, Cefoperazone, is chemically classified as a third-generation cephalosporin. This classification refers to its specific chemical structure, which provides a determined spectrum of activity against certain types of bacteria, including those with resistance mechanisms.

Q: How quickly is Cefmate usually eliminated from the body?

A: Regulatory data on pharmacokinetics describe how the body handles the drug. In people with typical kidney and liver function, the Sulbactam component has a mean serum half-life of about one hour, while the Cefoperazone component is eliminated slightly slower, with a mean half-life of approximately 1.7 hours. Elimination occurs primarily through the bile and the kidneys.

Q: Does Cefmate interact with caffeine or alcohol?

A: Official information states that alcohol avoidance is mandated due to the serious risk of a disulfiram-like reaction. However, there is typically no clinically significant interaction specified in official labeling regarding the use of caffeine.

Q: What are the signs of a drug interaction with Cefmate?

A: Official warnings describe specific signs associated with known interactions. These include signs of a disulfiram-like reaction (flushing, rapid heart rate) if alcohol is consumed, signs of bleeding or coagulopathy (such as unusual bruising), and signs of increased nephrotoxicity (effects on kidney function) when co-administered with certain other medicines.

Q: What should I look for if I suspect an allergic reaction to Cefmate?

A: Official safety data advises looking for signs of severe hypersensitivity. These include skin reactions like rash or itching, or more serious and potentially fatal reactions such as anaphylaxis (trouble breathing or swelling of the face/throat) or severe blistering and peeling of the skin (like Stevens-Johnson Syndrome).

Q: Is Cefmate a broad-spectrum or narrow-spectrum drug?

A: According to official regulatory documents, the combination of Cefoperazone and Sulbactam is described as providing broad-spectrum coverage. This means it is active against a wide variety of clinically significant bacteria, including some strains that might be resistant to other antibiotics.

Q: Is Cefmate effective for skin infections?

A: Yes, official indications for Cefoperazone/Sulbactam often list the treatment of Skin and Soft Tissue Infections among its uses. As with any antibiotic, it is intended for use against infections caused by bacteria confirmed to be susceptible to the medicine.

Q: How long does it typically take for Cefmate to start working?

A: Since the medicine is administered via injection, therapeutic concentrations are reached in the bloodstream immediately after intravenous administration. The time it takes for symptoms to show measurable improvement, however, depends entirely on the type and severity of the specific infection being treated.

Q: What should I do if I miss a dose of Cefmate?

A: Official guidance indicates that a double dose should not be administered to compensate for a missed dose. A qualified healthcare professional should be consulted for personalized instructions regarding the administration schedule.

Q: Is it okay to stop taking Cefmate once my symptoms improve?

A: Public health compliance guidance emphasizes the importance of completing the full prescribed duration of treatment. Stopping treatment early, even if symptoms improve, may not ensure the complete eradication of the infection and could contribute to the development of antimicrobial resistance.

Q: Can Cefmate make you feel tired or drowsy?

A: Official documents list dizziness as a reported side effect of the Cefoperazone component. Patients who experience this effect should be aware of the need for caution with activities requiring mental alertness, such as driving. Fatigue or drowsiness is not typically listed as a common reaction.

Q: Is Cefmate known to interact with birth control pills?

A: Yes, the official labeling notes a potential interaction where Cefoperazone may reduce the effectiveness of oral contraceptives that contain estrogen. This occurs due to an alteration of intestinal flora. Official information suggests consulting a physician regarding the need for alternative or additional contraceptive methods.

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

A: Regulatory documents state that Cefoperazone has been known to interact with certain non-steroidal anti-inflammatory drugs (NSAIDs). The main concern with this combination is a potential increase in the risk of bleeding. The combination requires caution and monitoring.

Q: Does Cefmate have an official risk classification for pregnancy?

A: In the United States, Cefoperazone has been assigned to Pregnancy Category B by the FDA. This classification means that while animal studies have not shown evidence of harm to the fetus, there is a current lack of adequate and well-controlled studies in pregnant human subjects.

Q: Why is it important to take Cefmate for the full course?

A: The completion of the full prescribed course is essential to maintain sufficiently high drug concentrations in the body. This is necessary to fully eradicate all bacteria causing the infection, preventing treatment failure and minimizing the risk of developing drug-resistant bacteria.

Q: Does Cefmate affect your mood or mental clarity?

A: Official documents note the potential for central nervous system (CNS) effects. These can include headache and, in rare circumstances (usually at very high doses or in patients with kidney problems), increased neuromuscular excitability, which can potentially lead to seizures.

Q: What is the typical duration of treatment with Cefmate?

A: While the exact duration is determined by the prescriber based on the specific infection, regulatory guidelines state that treatment is generally administered for a period ranging from 7 to 14 days. This timeframe may be adjusted depending on the patient's condition and response to therapy.

Q: Do regulatory bodies classify Cefmate as having a high risk of drug resistance?

A: The Sulbactam component is included specifically to inhibit bacterial beta-lactamase enzymes, a key mechanism of resistance, thereby supporting the antibiotic's effectiveness. However, official labeling does include a standard warning that prolonged use of any antibiotic may lead to an overgrowth of non-susceptible organisms.

Q: Where can I find the official prescribing information for Cefmate?

A: The authoritative medical information is available in regulatory documents issued by governmental bodies. This includes the Summary of Product Characteristics (SmPC) from the EMA or the Full Prescribing Information/DailyMed label from the FDA or the corresponding national health authority in your region.

Q: Is Cefmate safe for people with a history of seizures?

A: Regulatory documents advise that caution should be used when prescribing this medicine to patients with a history of seizure disorders. Official safety information notes that Cefoperazone can cause seizures or increase neuromuscular excitability, especially when high doses are used or in patients who have impaired renal function.

Q: Is Cefmate associated with any specific side effects in children?

A: Official documents advise specific caution for use in neonates, particularly premature infants. During extended therapy in neonates and infants, periodic monitoring of the renal, hepatic (liver), and hematopoietic (blood) systems is advised by regulatory authorities.

How should Cefmate be stored and disposed of?

The storage and disposal of Cefmate (Cefoperazone/Sulbactam) must follow regulatory requirements to maintain product stability and ensure safety.

Storage State Temperature and Protection Stability and Handling
Unreconstituted Powder Store at controlled room temperature, typically 20 C to 25 C (68 F to 77 F). Protect from light and keep in the original container until use.
Reconstituted Solution Store under refrigeration (2 C to 8 C) for extended stability (up to 7 days), or for 24 hours at room temperature. Do not use Ringer's Lactate for initial reconstitution. Discard if particulate matter or discoloration is observed.

All medicinal products must be kept out of the sight and reach of children. Unused or expired medication, including associated sharps (needles/syringes), must be disposed of according to local pharmaceutical waste regulations and should not be discarded in wastewater.

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

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