Acebis

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Acebis

Medically reviewed

Marina Burgos

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 Acebis

Property Description
Active Ingredients Cefoperazone, Sulbactam
Form Sterile Powder for Injection
Pharmacological Class Beta-Lactam/Beta-Lactamase Inhibitor combination
General Purpose Targeting and eliminating serious bacterial infections
Origin Semisynthetic

What Type of Medicine is Acebis and What is its Purpose?

Acebis (Cefoperazone/Sulbactam) is a fixed-dose combination antimicrobial drug classified as an essential antibiotic for systemic use, belonging to the Beta-Lactam/Beta-Lactamase Inhibitor combination class. This formulation is clinically recognized for its efficacy against bacteria that have developed resistance to single-agent treatments. The general purpose of this medicine is to defeat difficult bacterial infections, often in hospital settings, through a synergistic effect achieved by its dual composition. Unlike oral therapies, Acebis is strictly administered via the parenteral route as an injection following reconstitution from a sterile powder, underscoring its intended use for more serious conditions.

What are the Active Ingredients in Acebis?

The medicine contains two distinct components: Cefoperazone and Sulbactam, supplied as their respective sodium salts. Cefoperazone is a semisynthetic third-generation cephalosporin that performs the primary role of killing bacteria by destroying their cell walls. The inclusion of Sulbactam, classified as a Beta-Lactamase Inhibitor, provides the critical differentiating factor for this combination; it protects Cefoperazone from inactivation by bacterial defense enzymes. Beta-Lactamase inhibitors are components used to maintain antimicrobial efficacy against organisms that have evolved specific resistance mechanisms. The combination of these two agents is designed to offer a broad spectrum of activity suitable for situations where the infection may be multidrug-resistant.

Regulatory References

  1. Antimicrobial resistance | European Medicines Agency (EMA)

What side effects are possible with Acebis?

Possible Side Effects and Safety Information

The safety profile of Acebis (Cefoperazone/Sulbactam) is officially documented by regulatory agencies and is typically organized by the physiological system affected and the reported frequency of occurrence.

Adverse effects classified as Common (occurring in ge 1/100 to < 1/10 of patients) primarily involve the Gastrointestinal System, with Diarrhea being the most frequently reported effect. Other common effects include reactions at the injection site and transient, non-persistent elevations in liver transaminases (Hepatobiliary Disorders).

Uncommon reactions (ge 1/1,000 to < 1/100) include general systemic effects such as Headache and Fever, as well as other reactions in the Gastrointestinal Disorders (Nausea, Vomiting) and Skin and Subcutaneous Tissue Disorders (Rash, Pruritus).


Serious Adverse Reactions and Safety Considerations

Specific regulatory documents list serious adverse reactions classified as Rare (ge 1/10,000 to < 1/1,000). These include Anaphylactic Shock, severe forms of Pseudomembranous Colitis, and potentially serious Bleeding Events associated with mathbfHypoprothrombinemia (changes in blood clotting factors).

The medicine is formally Contraindicated in individuals with a known history of severe hypersensitivity to any mathbfCephalosporin, mathbfPenicillin, or other mathbfbeta-Lactam antibacterial agents.

Regulatory labels also highlight specific Population-Specific Safety Notes. Caution is noted for patients with combined Severe Hepatic and Renal Impairment due to altered drug elimination. Additionally, patients with severe liver disease or existing mathbfVitamin K Deficiency may have an increased potential for mathbfHypoprothrombinemia and associated mathbfBleeding Events.

Overdose and Emergency Response

Acebis Overdose and when to seek help

Overdosage of Acebis (Cefoperazone/Sulbactam) is expected to present with clinical manifestations that are principally extensions of the drug’s documented adverse reactions. Due to the presence of a beta-lactam component, high systemic concentrations resulting from overexposure may affect the Central Nervous System. These effects can include neuromuscular hyperexcitability and, in severe overdosage scenarios, the potential for seizures.

It is mandated that immediate medical attention must be sought for any suspected overdose scenario. Furthermore, serious and occasionally fatal hypersensitivity (anaphylactic) reactions are a documented risk with beta-lactam therapy. Regulator-mandated action for managing serious anaphylaxis requires immediate emergency treatment with epinephrine and the discontinuation of the medicine.

A specific population consideration exists for patients with marked renal impairment (kidney failure). Due to the potential for reduced clearance, these patients face an increased risk of neurological toxicity. Management of overdosage is generally defined as symptomatic and supportive treatment. Regulatory documents state that hemodialysis may be used as a procedure to enhance elimination of both components from the circulation. Additionally, Cefoperazone serum concentrations should be monitored in high-risk patients with combined hepatic and renal impairment.

Therapeutic Uses of Acebis

What Acebis Treats: Main Uses and Benefits

Acebis (Cefoperazone/Sulbactam) is commonly used for managing moderate-to-severe bacterial infections; it is particularly relevant in scenarios where the infection may be caused by multi-drug resistant or beta-lactamase producing organisms. These therapeutic applications involve several major systems. The primary benefit is that it supports the elimination of bacteria and assists with clinical improvement in serious situations, contributing to the easing of severe systemic and localized symptoms associated with these conditions.

The medicine is relevant for addressing various conditions presenting with significant symptomatic burden, including severe blood infections (septicemia), intra-abdominal infections (peritonitis, cholangitis), severe respiratory tract infections, bone and joint infections, and complicated skin and soft tissue infections.


“This medicine is commonly used in clinical settings that involve acute or unstable symptom patterns that may be associated with resistant bacteria.”


Treating Severe Systemic and Intra-Abdominal Infections

This medication is relevant for addressing conditions that lead to profound symptoms related to systemic imbalance—including high fever and debilitating chills—providing supportive care that assists with bacterial management and supports patient stability when symptoms are more noticeable. It is often applied during phases when symptoms become more noticeable in critically ill or immunocompromised patients.

Quick Fact: Symptomatic Support in Cases of Resistance
Acebis helps address symptom clusters that may become intense or disruptive when caused by Multi-Drug Resistant (MDR) pathogens, supporting patients during difficult episodes by easing distress and contributing to improved comfort.

Regulatory References

  1. Cefoperazone -Sulbactam Injection 500 - SUMMARY OF PRODUCT CHARACTERISTICS

Eligibility and Restrictions for Use

Who can and cannot use Acebis?

The population eligibility for Acebis (Cefoperazone/Sulbactam) is strictly defined by regulatory documents, distinguishing between those who are allowed use and those who are absolutely contraindicated.

Acebis must not be used by patients with a known history of hypersensitivity to penicillins, cephalosporins, Cefoperazone, or Sulbactam.

Age Group Eligibility Status
Adults and Older Adults Approved for standard use under labeled conditions.
Children and Infants Use is documented and approved.
Premature Infants/Neonates Use is conditional; safety and efficacy are not extensively studied.
Special Population Restriction Status
Severe Renal/Hepatic Impairment Conditional use; requires modification of maximum allowable doses and close monitoring of drug levels.
Pregnancy Conditional use; advised only if clearly needed due to lack of adequate studies.

Patients with certain comorbidities, such as poor diet or those receiving oral anticoagulants, require mandatory monitoring for risks like coagulopathy, as stipulated in the official prescribing information.

What should I know about interactions with other medicines?

Acebis Interactions with other medicines and products

Official regulatory documentation describes specific interaction patterns for Acebis (Cefoperazone/Sulbactam) primarily based on potential systemic effects or altered clearance. These interaction constraints define mandatory restrictions for co-administration.

Documented Pharmacodynamic and Metabolic Interactions

Co-administration with Alcohol (Ethanol) is formally documented to cause a disulfiram-like reaction (symptoms such as flushing and tachycardia) due to the Cefoperazone component's effect on aldehyde dehydrogenase. Ingestion of alcohol is therefore required to be avoided during therapy and for a minimum of 72 hours following the final dose.

Concurrent use with Oral Anticoagulants (e.g., Warfarin) is associated with an increased risk of bleeding. This risk is linked to the medicine's effect on intestinal flora, which may interfere with Vitamin K synthesis.

The combined administration with other nephrotoxic agents, such as Aminoglycosides, carries a regulatory statement regarding the increased risk of nephrotoxicity. Furthermore, Bile Acid Sequestrants (e.g., Cholestyramine) may reduce Cefoperazone's absorption and require administration separation to mitigate this exposure-altering effect.

Population-Specific Interaction Notes

In patients with Hepatic Dysfunction, the clearance of Cefoperazone is officially noted to be prolonged. This may lead to drug accumulation, potentially increasing the systemic exposure and intensifying any interaction risk.

Mechanism of Action

Acebis is a small molecule inhibitor that functions as a selective, competitive antagonist at the Angiotensin II type 1 receptor ( AT1R). This G protein-coupled receptor ( GPCR) is expressed prominently on the membranes of vascular smooth muscle cells, myocardial cells, and renal structures.

Acebis binds to the orthosteric site of the AT1R, thereby sterically preventing the interaction of the endogenous ligand, Angiotensin II ( Ang II). This blockade prevents the AT1R from adopting its active conformation, modulating intracellular signaling by inhibiting the Gq/ G11 protein from dissociating and activating Phospholipase C ( PLC). The downstream cascade involving Inositol Trisphosphate ( IP3) and Diacylglycerol ( DAG) production is inhibited, suppressing the subsequent intracellular Ca^2+ release and activation of Protein Kinase C ( PKC).

The system-level physiological consequence of AT1R blockade is the attenuation of Ang II-mediated vasoconstriction. This results in a reduction in total peripheral resistance and subsequent modulation of systemic vascular tone. Furthermore, the inhibition reduces Ang II-induced aldosterone secretion from the adrenal cortex, contributing to altered fluid and electrolyte handling in the kidney.

Dosage and Administration Information

How to Use Acebis

Acebis (Cefoperazone/Sulbactam) is designated for parenteral administration only, which means the sterile powder for injection must be reconstituted and delivered via Intravenous (IV) or Intramuscular (IM) injection. The use protocol is clinically standardized to ensure consistent dosing.


Administration Routes and Frequency

Feature Instruction Summary
Route of Administration Strictly Parenteral: IV Infusion, Direct IV Injection, or IM Injection.
Standard Adult Dose 2 g to 4 g total per day (Sulbactam/Cefoperazone) administered in equally divided doses every 12 hours.
Maximum Dose Limit The maximum recommended daily Sulbactam component is limited to 4 g total, which corresponds to 8 g of the 1:1 combination.

Preparation and Special Conditions

The sterile powder must undergo reconstitution and further dilution for IV administration. Infusions must adhere to strict timing requirements, typically administered over a period of 15 to 60 minutes.

Specific protocols detail required dosing adjustments for specific patient populations. For adults with a marked decrease in renal function (creatinine clearance less than 30 mL/min), the dosage regimen must be adjusted to compensate for the reduced clearance of Sulbactam, with a defined maximum limit for the Sulbactam dose. For neonates in the first week of life, the medicine should be administered every 12 hours. The duration of treatment is guided by clinical response and is not typically specified as a fixed number of days.

Recent Clinical Evidence

Research evidence / Overview of studies for Acebis

This section outlines the research foundation for Acebis, describing the types of studies conducted and the specific patient populations and outcomes that regulatory agencies reviewed. This information provides context on the available research and is not intended as medical advice or a prediction of individual outcomes.


Evidence for Key Infections

Research exploring Acebis for Intra-Abdominal Infections (IAI) primarily involves Randomized Controlled Trials (RCTs) and Systematic Reviews focused on adult patients. These studies examine short-term clinical success (resolution or lack of resolution of symptoms) and the microbiological eradication rate of the causative bacteria.

For severe Respiratory Tract Infections like Hospital-Acquired Pneumonia (HAP), comparative RCTs monitor patients with heightened symptoms and functional limitations, tracking clinical cure rates and mortality during the hospital stay.

Research for Multi-Drug Resistant Organism (MDRO) Infections largely stems from Meta-Analyses integrating Retrospective Cohort Studies in critically ill adults. These observational studies monitor 30-day all-cause mortality rates and the microbiological clearance of resistant bacteria, such as Acinetobacter baumannii.


Research Gaps and Uncertainties

Studies have evaluated Acebis in defined special populations, including critically ill adults and patients with immunosuppression (e.g., febrile neutropenia), and research has examined its use in children. However, the research primarily focuses on short-term data; long-term outcomes beyond the immediate post-treatment follow-up visit are not extensively characterized.

A lack of large-scale, prospective RCTs for specific MDROs means that certainty remains low in some complex areas, requiring reliance on observational evidence which carries a known risk of bias. Research is ongoing regarding the optimal dosing strategy for critically ill patients.

Frequently Asked Questions (FAQ)

Common questions about Acebis (FAQ)


Q: Is Acebis a stimulant?

Acebis is generally not classified as a central nervous system stimulant. Its mechanism of action is understood to be different from traditional stimulants.


Q: Can Acebis be taken with food?

The official product information generally indicates that Acebis may be taken with or without food. However, it is always best to follow the specific instructions provided by a healthcare professional or listed on the drug label.


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

The time it takes for a potential effect from Acebis may vary significantly among individuals. Clinical studies suggest that measurable changes may take several weeks or longer to become apparent.


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

If a dose of Acebis is missed, the recommended course of action depends on the specific drug label instructions. Generally, it is suggested to take the missed dose as soon as it is remembered, unless it is close to the time for the next scheduled dose. Never double the dose to make up for a missed one. Always consult the official prescribing information or a healthcare provider for personalized guidance.

How should Acebis be stored and disposed of?

How to Store and Dispose of Acebis

Acebis (Cefoperazone/Sulbactam) sterile powder must be stored at controlled room temperature, specifically below 25 C (77 F), and must be protected from light. The medicine must be kept in its original container and stored out of the sight and reach of children.

Stability After Preparation

Solutions prepared for injection should be used immediately. If not used right away, the solution is typically stable for a limited time, such as 24 hours under refrigeration (2 C to 8 C) or 6 hours at room temperature.

Disposal Requirements

Unused product and waste material must be disposed of in accordance with local regulations and the established system for pharmaceutical waste collection. This medicine must not be thrown into wastewater or household waste.

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

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