Brand Name

Nuzolvence

Generic Name
Zoliflodacin
View Brand Information
FDA approval date: December 22, 2025
Form: For

What is Nuzolvence (Zoliflodacin)?

NUZOLVENCE is a spiropyrimidinetrione bacterial type II topoisomerase inhibitor indicated for the treatment of uncomplicated urogenital gonorrhea due to Neisseria gonorrhoeae in adults and pediatric patients 12 years of age and older, weighing at least 35 kg.

Brand Information

NUZOLVENCE (zoliflodacin)
1DOSAGE FORMS AND STRENGTHS
For Oral Suspension: 3 g of zoliflodacin as white to off-white granules in each unit-dose packet of NUZOLVENCE.
2CONTRAINDICATIONS
NUZOLVENCE is contraindicated in:
  • patients with a known history of hypersensitivity to NUZOLVENCE
  • patients who use concomitant moderate or strong CYP3A4 inducers because concomitant use is predicted to result in decreased plasma concentrations of zoliflodacin and may reduce the efficacy of NUZOLVENCE
3ADVERSE REACTIONS
The following clinically significant adverse reactions are discussed in the Warnings and Precautions section of the labeling:
  • Hypersensitivity Reactions
3.1Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
A total of 782 patients received a 3 g dose of zoliflodacin across all phases of clinical trials.
The safety of NUZOLVENCE was evaluated in a phase 3, randomized, open-label, active-controlled, multicenter, multinational trial (NCT03959527) (Trial 1). In total, 927 patients with suspected uncomplicated gonorrhea due to
Serious Adverse Reactions and Adverse Reactions Leading to Discontinuation:
There were no serious adverse reactions or adverse reactions leading to treatment discontinuation or death.
Common Adverse Reactions:
Table 2 lists adverse reactions occurring in ≥2% of patients receiving NUZOLVENCE in Trial 1.
Headache: In Trial 1, headache was reported in 61/619 (10%) of patients receiving NUZOLVENCE; headache severity was mild in 8% of patients and moderate in 2%.
Laboratory Abnormalities
Laboratory abnormalities that occurred at a frequency of 2% or greater in Trial 1 are provided in Table 3.
Neutropenia: In Trial 1, 41/609 (7%) and 30/609 (5%) patients developed neutropenia from 4 to 8 days and from 27 to 33 days following NUZOLVENCE administration, respectively. Of these 71 patients, 25% were living with HIV and 8% had unknown HIV status. No patients required treatment for neutropenia.
Leukopenia: In Trial 1, 54/609 (9%) of patients developed leukopenia following NUZOLVENCE administration; 16% of these patients were living with HIV and 11% had unknown HIV status. No patients required treatment for leukopenia.
Other Adverse Reactions Associated with NUZOLVENCE in Trial 1
Adverse reactions occurring in less than 2% of patients receiving NUZOLVENCE in Trial 1 (Safety Population), are presented below:
Blood and lymphatic system disorders: Thrombocytopenia, monocyte count decreased, hemoglobin decreased
Cardiac disorders: Palpitations
Gastrointestinal disorders: Vomiting, abdominal pain, constipation, abdominal distension, flatulence
General disorders: Asthenia, fatigue, malaise, pyrexia, chills, feeling hot, night sweats
Hepatobiliary disorders: Alanine aminotransferase increased, blood bilirubin increased
Infections and infestations: Tinea infections, candidal infections
Musculoskeletal and connective tissue disorders: Musculoskeletal pain
Nervous system disorders: Somnolence, hypersomnia, hypoesthesia
Psychiatric disorders: Insomnia
Renal and urinary disorders: Hematuria, blood creatinine increased, glomerular filtration rate decreased
Respiratory, thoracic, and mediastinal disorders: Cough
Skin and subcutaneous tissue disorders: Rash, pruritus, alopecia, eyelid swelling
Vascular disorders: Hot flush
4DESCRIPTION
NUZOLVENCE for oral suspension contains zoliflodacin, an oral spiropyrimidinetrione bacterial type II topoisomerase inhibitor. The chemical name of zoliflodacin is (2R,4S,4aS)-11-Fluoro-1,2,4,4a-tetrahydro-2,4-dimethyl-8-[(4S)-4-methyl-2-oxo-3-oxazolidinyl]spiro[isoxazolo[4,5-g][1,4]oxazino[4,3-a]quinoline-5(6H),5'(2'H)-pyrimidine]-2',4',6'(1'H,3'H)-trione. Its molecular formula is C
Chemical Structure
Each unit dose packet of NUZOLVENCE for oral suspension contains 3 g of zoliflodacin and the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, mannitol, microcrystalline cellulose, talc, and xanthan gum.
5CLINICAL STUDIES
A total of 930 patients with suspected uncomplicated gonorrhea due to
The primary analysis population was the microbiologic intent-to-treat (micro-ITT) urogenital population, which included patients who had
The demographic and baseline characteristics in the micro-ITT urogenital population were comparable between treatment groups. In total, 91% were male; 55% Black, 31% Asian, 13% White, and 4% Hispanic or Latino; the mean age was 30 years (range: 16 to 73) and the mean weight was 70 kg (range: 37 to 139 kg). The primary efficacy endpoint was microbiological cure as determined by confirmed bacterial eradication of
Table 6 shows the primary endpoint of microbiological cure rates at the urogenital site at TOC in the micro-ITT urogenital population. Trial 1 demonstrated non-inferiority of NUZOLVENCE to the combination of ceftriaxone and azithromycin.
6PATIENT COUNSELING INFORMATION
Advise the patient to read the FDA-approved labeling (Medication Guide and Instructions for Use).
Embryo-Fetal Toxicity: Potential Risk for Pregnant Females
  • Advise pregnant females about the potential risk to the fetus with maternal exposure to NUZOLVENCE
  • Advise females who take NUZOLVENCE during pregnancy that a pregnancy safety study is available to monitor pregnancy outcomes and encourage them to report their pregnancy to Entasis Therapeutics at 1-800-651-3861
Embryo-Fetal Toxicity Related to Males with Female Partners of Reproductive Potential
Advise males who receive NUZOLVENCE and have female partners of reproductive potential to use effective contraception for at least 3 months after receiving NUZOLVENCE
Testicular Toxicity and Risks to Male Fertility
Advise males that NUZOLVENCE may cause testicular toxicity and impair male fertility
Important Preparation Instructions Prior to Administration
Advise patients that NUZOLVENCE are granules for oral suspension and must be mixed with water before administration. Instruct patients not to take the granules in the dry form
Important Administration Instructions Regarding the Ingestion of Food
  • Advise patients weighing 35 kg (77 pounds) to less than 50 kg (110 pounds) to take NUZOLVENCE on an empty stomach, 1 hour before or 2 hours after food
  • Advise patients weighing 50 kg (110 pounds) or more to take NUZOLVENCE with food
Diarrhea
Advise the patient, their families, or caregivers that diarrhea is a common problem caused by antibacterial drugs, including NUZOLVENCE. Sometimes, frequent watery or bloody diarrhea may occur and may be a sign of a more serious intestinal infection. If severe watery or bloody diarrhea develops, tell them to contact their healthcare provider
Antibacterial Resistance
Patients should be counseled that antibacterial drugs including NUZOLVENCE should only be used to treat bacterial infections. They do not treat viral infections (e.g., the common cold). When NUZOLVENCE is prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed. Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by NUZOLVENCE or other antibacterial drugs in the future
7INSTRUCTIONS FOR USE NUZOLVENCE®(nu-ZOL-vence) (zoliflodacin) for oral suspension
This Instructions for Use contains information on how to take NUZOLVENCE. Read this Instructions for Use before you take NUZOLVENCE.
This information does not take the place of talking to your healthcare provider about your medical condition or treatment. Talk to your healthcare provider or pharmacist if you have any questions on how to prepare or take the prescribed dose of NUZOLVENCE.
NUZOLVENCE kit contents:
Important Information You Need to Know Before Taking NUZOLVENCE
  • Do
  • Always mix NUZOLVENCE with water before taking (see
  • Do
  • Take NUZOLVENCE exactly as your healthcare provider tells you.
  • If you do not or cannot take the full dose, call your healthcare provider.
Based on your weight, take NUZOLVENCE as follows:
Storing NUZOLVENCE
  • Store NUZOLVENCE in the original package.
  • Store NUZOLVENCE at room temperature between 68 °F to 77 °F (20 °C to 25 °C), see prescribing information.
  • Do not freeze.
  • Keep NUZOLVENCE and all medicines out of the reach of children.
Preparing NUZOLVENCE
Additional Information
For additional information, call
Distributed by:
NUZOLVENCE
©2025, Entasis Therapeutics, Inc. All rights reserved.
8PRINCIPAL DISPLAY PANEL - 3 g Packet Carton
NDC 68547-915-10
NUZOLVENCE
3g
UNIT-DOSE KIT
Each carton contains:
  • 1 packet containing 3 g of zoliflodacin
  • 1 mixing container, 120 mL, with lid
  • Instructions for Use
  • Medication Guide
PHARMACIST: Dispense
ENTASIS
PRINCIPAL DISPLAY PANEL - 3 g Packet Carton