Novogard

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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 Novogard

Novogard: Quick Facts and Overview

Novogard is a specialized agent used in critical care to combat bacterial resistance, ensuring that accompanying antibiotics remain effective.

Property Description
Active Ingredient Synthetic compound (e.g., Avibactam, Relebactam class)
Pharmacological Class Non-beta-Lactam beta-Lactamase Inhibitor
Form Powder for solution for intravenous (IV) infusion
Common Use Restores efficacy of companion antibiotics against resistant bacteria
Origin Purely synthetic (Laboratory-developed)
Regulatory Status Prescription-only (Rx)

What Type of Medicine is Novogard and Its Distinctive Form?

Novogard is a potent anti-infective potentiator, classified as a non-beta-lactam beta-lactamase inhibitor. Its primary role is to protect a co-administered antibiotic drug from deactivation by bacterial enzymes. This protective function is clinically recognized for expanding the utility of established antibiotics against strains that have developed difficult-to-treat resistance.

Novogard is typically prepared as a sterile powder for solution for intravenous (IV) infusion. This specific administration route is used because the active ingredient requires direct systemic delivery to achieve the necessary blood concentrations quickly. As a medicine predominantly used in hospital or high-acuity settings, Novogard is strictly a prescription-only (Rx) product.

What is Novogard’s Active Ingredient and Origin?

The core of Novogard is a highly specialized, purely synthetic compound that is meticulously engineered for stability and potency. Unlike older antibiotics derived from natural sources, Novogard’s active substance is entirely manufactured in a laboratory. This synthetic origin allows for a precise chemical design that provides a unique mechanism for trapping and neutralizing a wide array of bacterial beta-lactamase enzymes.

The unique structure of compounds in the Novogard class possesses a distinct chemical profile. This synthetic design helps it overcome certain resistance factors that older beta-lactamase inhibitors may struggle to neutralize.

What is the General Purpose of Novogard?

The overall purpose of Novogard is to restore therapeutic options in the face of escalating antibiotic resistance. Its use is a critical strategic decision in medical practice to ensure that infections caused by resistant bacteria—a globally recognized public health threat—can still be managed successfully. This combination approach is vital in managing conditions where bacterial resistance is confirmed or strongly suspected, allowing the primary antibiotic the opportunity to work as intended.

What side effects are possible with Novogard?

Possible Side Effects and Safety Information: Novogard

The safety profile for Novogard (an anti-infective potentiator) is established through official regulatory documentation, which structures possible effects by frequency and the body system affected.

Category Description
Frequency Classification Adverse reactions are formally categorized as Very Common (1/10 of patients) or Common (1/100 to < 1/10).
Systems Involved Documented effects primarily involve Gastrointestinal Disorders, Nervous System Disorders, Blood and Lymphatic System Disorders, and conditions at the Administration Site.

Very Common adverse reactions explicitly listed in regulatory documents include Headache, Nausea, Diarrhea, Vomiting, and Phlebitis (inflammation at the infusion site). Reactions classified as Common include Abdominal pain, elevations in liver enzymes (Hepatobiliary Disorders), and changes in blood cell counts such as Anemia, Leukopenia, and Thrombocytopenia.

Serious Adverse Reactions and Safety Constraints

The regulatory label highlights critical safety concerns, categorized as Serious Adverse Reactions. These include Hypersensitivity Reactions, which may manifest as anaphylaxis, as well as clinically significant reactions such as Renal Impairment and severe gastrointestinal complications like Clostridioides difficile-associated diarrhea (CDAD).

Population-Specific Safety: The medicine's clearance is predominantly renal, meaning Renal Impairment is a central safety consideration. Official labels require specific monitoring and impose Safety-Related Restrictions for patients with severe renal impairment to prevent potential drug accumulation. The safety profile is generally consistent for Older Adults and Pediatric Patients but requires careful monitoring of renal function, as documented in official prescribing information.

This regulatory structure defines the official risk profile by separating expected, high-frequency effects from serious, less frequent safety events and providing context for use in specific patient populations.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information describes Novogard overdose as primarily manifesting through pronounced Central Nervous System (CNS) effects due to drug accumulation. The documented presentations include neurological sequelae such as tremor, myoclonus, and encephalopathy. More severe manifestations, which classify the event as life-threatening, include convulsions (seizures) and coma.


Required Emergency Actions and Risk Factors

Element Regulatory-Documented Action or Constraint
Immediate Action Get medical help right away if severe, life-threatening symptoms (e.g., coma, seizures) are observed. Tell your doctor or nurse straight away if over-exposure is suspected.
Risk Factor Patients with renal impairment are at an increased risk of neurological sequelae if the dose is not appropriately reduced for decreased drug clearance.
Antidote/Support No specific antidote is known. Management includes symptomatic and supportive treatment; the active components are officially documented as removable by haemodialysis.

The necessity of seeking emergency medical assistance is driven by the potential for these severe neurological outcomes. Management of excess exposure is based on supporting the patient and utilizing haemodialysis for drug removal, as outlined in official prescribing information.

Therapeutic Uses of Novogard

What Novogard Treats: Main Uses and Benefits

Novogard is commonly used to help provide a relevant therapeutic option when patients are battling severe infections caused by multidrug-resistant (MDR) bacteria. This class of anti-infective potentiator is commonly applied in the most acute contexts. The medication is relevant for easing symptoms associated with critical conditions like complicated urinary tract infections (cUTI), deep-seated complicated intra-abdominal infections (cIAI), and severe lung infections such as hospital-acquired bacterial pneumonia (HABP) and ventilator-associated bacterial pneumonia (VABP).

Managing High-Acuity Symptoms

The primary patient benefit is providing support for the companion antibiotic, which may support the body's efforts to address the infection that may contribute to persistent illness. The medication plays a role in managing pronounced symptoms linked to systemic imbalance and heightened physiological activity. This includes addressing severe signs like high, unrelenting fever and is relevant for easing acute respiratory distress. Novogard is considered relevant for specific patient groups, including adults in critical care and pediatric patients with severe complicated infections when resistance is confirmed or strongly suspected. The use of this specialized agent assists with maintaining comfort during episodes marked by increased physiological stress.


Quick Fact: Relief for Resistant Infections
Symptom Axis Symptoms related to systemic imbalance and organ-specific functional stress.
Conditions Used For Conditions characterized by periods of heightened symptoms due to confirmed or suspected bacterial resistance.
Patient Benefit Supports the overall treatment strategy by contributing to easing the overall symptom load.

Eligibility and Restrictions for Use

Who Can and Cannot Use Novogard?

The population eligibility for Novogard (representing a beta-lactam/beta-lactamase inhibitor combination agent) is defined by strict regulatory criteria focusing on patient history and physiological status.

Contraindicated Populations

Novogard is contraindicated (must not be used) in patients with a known serious hypersensitivity to its active components or to any beta-lactam antibacterial agent, such as penicillins or cephalosporins. This exclusion is absolute due to the risk of severe allergic reactions.


Eligibility and Restrictions

The medicine is generally eligible for adults and pediatric patients aged 3 months and older for its labeled indications. However, use is not established in infants younger than 3 months. Geriatric patients (ge 65 years) are eligible but require careful monitoring of renal function.

Population Group Regulatory Status
Renal Impairment (CrCl le 50 mL/min) Requires Mandatory Dosage Adjustment and monitoring.
Pregnancy Not recommended unless clearly needed due to lack of adequate human studies.
Lactation Requires a decision to discontinue breastfeeding or discontinue the drug.

Use requires caution in patients with a history of seizure disorders due to the associated risk of CNS adverse reactions with beta-lactam agents.

What should I know about interactions with other medicines?

Novogard Interactions with other medicines and products

Novogard’s interaction profile is defined by constraints on systemic clearance and specific pharmacodynamic risks, as documented in regulatory prescribing information. The active component is primarily cleared by the kidneys, which governs several documented interaction outcomes.

Classification Interacting Substance/Condition Documented Outcome/Restriction
Exposure Restriction Valproic acid or Divalproex sodium Combination is formally advised to be avoided. Co-administration significantly reduces the serum concentration of the anti-epileptic, which may result in loss of seizure control.
Clearance Alteration Probenecid Co-administration is documented to increase Novogard plasma exposure by competitively inhibiting its renal tubular secretion, thereby decreasing its clearance.
Pharmacodynamic Risk Ganciclovir or Valacyclovir Official labeling notes an increased risk of seizures or other central nervous system events when co-administered.

Systemic Constraints and Timing Rules

Administration also includes constraints tied to systemic clearance procedures. Novogard must be administered after a hemodialysis session, with the subsequent dosing interval timed from the end of that session. For individuals with Severe Renal Impairment (creatinine clearance less than 15 mL/min), use is restricted unless the patient is scheduled for hemodialysis within 48 hours. No clinically significant interactions with food, alcohol, or herbal products are documented in the official regulatory information.

Mechanism of Action

Novogard’s mechanism is strictly defined by the targeted inhibition of specific bacterial defense enzymes, which functionally enables the activity of a co-administered beta-lactam antibiotic. Its molecular action involves acting as a reversible beta-Lactamase Inhibitor, targeting the active site serine residues of Ambler Class A and C beta-Lactamases. By forming a temporary covalent bond with the enzyme, Novogard neutralizes its hydrolytic activity, thereby chemically stabilizing the co-administered drug. This protective function is potentiating; it allows the beta-lactam drug to successfully bind to its primary target, the Penicillin-Binding Proteins (PBPs), which mediates the halt of the bacterial cell wall synthesis pathway. The resulting physiological consequence is the re-establishment of antibiotic-mediated PBP inhibition, an outcome dependent on the simultaneous action of both agents. The mechanism is biochemically limited, as Novogard is generally ineffective against Metallo-beta-Lactamases (MBLs), which utilize zinc ions in their active site instead of the required serine residue.

Dosage and Administration Information

Novogard is administered strictly via intravenous (IV) infusion. The medicine is supplied as a sterile powder, requiring mandatory reconstitution and subsequent dilution into an appropriate intravenous fluid before delivery. This procedural requirement dictates the use context, which is typically limited to hospital or high-acuity settings.

Dosage and Frequency

The standard regimen for adults with normal renal function (Creatinine Clearance, or CrCl, above 50 mL/min) involves administering a 2.5 gram dose every eight hours (q8h).

Use Context Dosing Principle
Renal Impairment Dose reduction is mandatory for CrCl mathbfleq 50 mL/min, adjusted to specific lower doses and potentially longer intervals.
Pediatrics Dosing is calculated using a weight-based (mg/kg) regimen, not to exceed the standard 2.5 gram adult dose.

Administration Conditions

Each dose must be administered as a continuous intravenous infusion over a set period of two hours to ensure proper systemic delivery. The total course of treatment typically ranges between 5 and 14 days, depending on the specific infection being addressed. A special procedural condition dictates that for patients undergoing hemodialysis, the dose must be administered after the dialysis session is complete. For certain indications, such as complicated intra-abdominal infections, the protocol requires the co-administration of metronidazole alongside Novogard.

This information describes the standardized use protocol.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Pharmacological Activity and Efficacy

Pharmacokinetic and Research Objectives

The research literature contains discussions regarding the drug's proposed activity. Clinical research assessed various measures of focus and attention. Pharmacokinetic studies measured the concentration of the drug in plasma. Studies examining the duration of action assessed different formulations.

Core Symptom Management

Clinical trials assessed changes in sustained attention in adults with ADHD following administration. Some participants reported changes in core symptoms. Investigators monitored cognitive performance across the course of treatment. The median time for initial observed changes varied among study participants.

One line of research examined changes in impulsivity over an extended period. Comparisons to other study medications are noted in the research literature. Trials often used standardized rating scales to quantify changes in symptoms.


Combination Therapy and Participant Experience

Use with Behavioral Interventions

Studies evaluated the effect of this drug when administered alongside behavioral therapy. Research is ongoing to assess which approaches are studied most often. Trials tracked the impact of this combined approach on academic performance and social functioning.

Secondary Outcomes and Data Collection

Some studies assessed patient-reported changes in anxiety and sleep quality during the trial period. Researchers collected data regarding the experience of participants in the studies. Clinical data was collected on common and uncommon adverse events. Findings related to long-term effects on cardiovascular parameters were also reviewed.

Key Studies & References

  1. Meta-analysis on the efficacy of the norepinephrine reuptake inhibitors reboxetine and atomoxetine for the treatment of schizophrenia and attention deficit hyperactivity disorder - *Advances in Clinical and Experimental Medicine
  2. Attention deficit hyperactivity disorder: diagnosis and management (NICE Guideline NG87)

Frequently Asked Questions (FAQ)

Common questions about Novogard (FAQ)


Q: Does Novogard affect birth control or fertility?

Official regulatory documents indicate that the effects of Novogard on human fertility have not been specifically studied. However, animal studies examining one of the active components did not suggest harmful effects on male fertility.


Q: How quickly can a person expect Novogard to start working?

Novogard is administered directly into a vein (intravenously), meaning the active components quickly reach their highest level in the bloodstream, typically near the end of the two-hour infusion. However, the desired therapeutic outcome is related to completing the entire course of treatment, which usually spans 5 to 14 days.


Q: What is the difference between Novogard and similar older medicines?

Novogard is a combination medicine in which one component is described in official information as protecting the partner antibiotic from a broader spectrum of bacterial defense enzymes than some older inhibitors. This protective function is designed to assist the companion antibiotic in addressing resistance patterns.


Q: Can Novogard interact with herbal products like St. John's Wort?

According to official regulatory prescribing information, no clinically significant interactions have been documented with common herbal products, including St. John’s Wort. There are also no documented interactions with food or alcohol.


Q: Are there specific warnings about Novogard and alcohol consumption?

Official prescribing information indicates that there are no clinically significant interactions specifically documented with alcohol consumption.


Q: What patient groups were excluded from the main Novogard studies?

While the main clinical trials focused on specific infections in adult patients, the medicine’s regulatory label is also based on data from pediatric patients. Currently, official use is not established in infants younger than 3 months.


Q: Is Novogard known to cause weight gain or loss?

Weight changes, whether gain or loss, are not listed among the officially reported Very Common (occurring in 1/10 patients) or Common (occurring in 1/100 to 1/10 patients) adverse reactions in regulatory documents.


Q: Does Novogard affect mood or anxiety?

Changes in mood or anxiety are not listed as common side effects. However, official information notes that Nervous System Disorders, including an increased risk of seizures or other central nervous system events, have been reported, particularly in patients with impaired kidney function.


Q: Is it true that Novogard is a newer drug compared to others for the same condition?

Official documents list the medicine's initial approval date in February 2015, which is more recent than that of the older component, ceftazidime.


Q: Does Novogard affect sleep patterns?

Changes to sleep patterns are not listed among the Very Common or Common adverse reactions detailed in the official regulatory documentation for this medicine.


Q: Is there a generic version of Novogard available?

Official drug listings indicate that a generic version of the combination product is not currently available.


Q: Is it normal to feel a bit dizzy when first starting Novogard?

Yes, regulatory documents list dizziness as a Common adverse reaction. This means it was reported in 1% to 10% of patients during clinical trials.


Q: Does Novogard require special monitoring or blood tests?

Official documentation requires careful monitoring of kidney function and may involve blood tests, especially for patients with or at risk of severe renal (kidney) impairment. Specific safety restrictions apply to these patient groups.


Q: Does Novogard interact with common over-the-counter pain relievers?

Regulatory documents list specific drug-drug interactions, such as those that affect the medicine’s clearance from the body. However, common non-prescription pain relievers like ibuprofen or acetaminophen are not listed as documented interactions.


Q: How does Novogard leave the body?

The active components of Novogard are primarily eliminated from the body through the kidneys. They are mainly excreted as unchanged drug via renal excretion.


Q: Are there different brand names for the medicine Novogard?

Yes, this specific combination of active ingredients is marketed under different brand names, such as AVYCAZ and ZAVICEFTA, in various regions globally.


Q: Is Novogard prescribed for conditions other than its main use?

Regulatory labels strictly define the specific bacterial infections for which the medicine is approved. Use for conditions that are outside of these official, labeled indications is not authorized.


Q: Are there different strengths or forms (tablet, liquid) of Novogard?

The medicine is only available as a powder that is prepared for administration as an intravenous infusion. It is not available in tablet, capsule, or liquid oral forms.


Q: Does taking Novogard make a person more sensitive to the sun?

Photosensitivity, which is an increased sensitivity or reaction to the sun, is not listed among the officially reported Very Common or Common adverse reactions for Novogard.


Q: How soon after stopping Novogard do the effects wear off?

The official half-life of the active components is approximately 2.7 to 3.0 hours in healthy adults. The half-life describes the time it takes for half of the medicine to be eliminated from the bloodstream.


Q: Is Novogard safe to take while drinking coffee?

Official regulatory documents state there are no clinically significant interactions documented with food, alcohol, or common beverages like coffee.


Q: What are the main research themes related to Novogard's use?

A core research theme involves the medicine's activity against certain multi-drug resistant Gram-negative bacteria that produce specific types of beta-lactamase enzymes.


Q: Why is Novogard sometimes used with another medicine?

Official guidelines often require the co-administration of another medicine, specifically metronidazole, when treating certain complicated intra-abdominal infections. This combination is required to provide coverage against a wider range of bacteria, including anaerobic bacteria.


Q: How long does the main effect of Novogard last after taking it?

The official half-life of the active components is approximately 2.7 to 3.0 hours in healthy adults. The half-life describes the time it takes for half of the medicine to be eliminated from the bloodstream.


Q: Is it normal to have mild stomach upset when starting Novogard?

Yes, according to regulatory documents, common adverse reactions include nausea, vomiting, and diarrhea. These effects were reported in 1% to 10% of patients and are considered common forms of gastrointestinal upset.

How should Novogard be stored and disposed of?

How to Store and Dispose of Novogard

Novogard (Ceftazidime/Avibactam) is provided as a powder and must be handled and stored according to strict regulatory guidelines.


Storage Requirements

Unopened vials must be stored at controlled room temperature, specifically 25 C (77 F), with permitted excursions. To protect the contents from light, the product must remain in its original outer carton and the container must be kept tightly closed.

Prepared Solution Stability: Once the powder is constituted and diluted, its stability is time-dependent. The diluted solution is stable for up to 12 hours at room temperature or for up to 24 hours if refrigerated (2 C to 8 C).

Disposal and Safety

All Novogard products must be stored out of the sight and reach of children. Unused medicinal product must be disposed of according to local requirements, typically via an approved waste disposal plant, and must not be discarded through household waste or wastewater.

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

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