Zidebactam and cefepime
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From MedlinePlus, U.S. National Library of Medicine
Cephalosporin Antibacterial
Dosing in kidney impairment
Recommended Dosage in Adult Patients with Renal Impairment Table 1 shows the recommended intravenous dosage of ZAYNICH for patients with varying degrees of renal function. Dosage adjustment of ZAYNICH is recommended in adult patients with renal impairment who have an eGFR of less than 60 mL/min, including patients receiving intermittent hemodialysis (IHD) [ see Use in Specific Populations ].
The duration of treatment is 7 days to 10 days. Administer each intravenous infusion over 1 hour. [See table below.]
| eGFR As calculated using 4-variable Modification of Diet in Renal Disease (MDRD) formula. (mL/min) | Dose The total duration of treatment is for 7 to 10 days. | Dosing Interval |
| 60 to 89 | ZAYNICH 3 grams Provides 2 grams cefepime and 1 gram zidebactam. | Every 8 hours |
| 30 to 59 | ZAYNICH 1.5 grams Provides 1 gram cefepime and 0.5 grams zidebactam. | Every 8 hours |
| 15 to 29 | ZAYNICH 1.5 grams | Every 12 hours |
| 8 to 14 (with or without intermittent hemodialysis (IHD)) On hemodialysis days, recommended dose should be administered after a hemodialysis session. On days, when hemodialysis is not performed, administer recommended dose 24 hours after the previous dose. | ZAYNICH 1.5 grams | Every 24 hours |
| eGFR As calculated using the 4-variable Modification of Diet in Renal Disease (MDRD) formula. (mL/min) | Dose The total duration of treatment is for 7 to 10 days. | Dosing Interval |
| 60 to 89 | ZAYNICH 3 grams Provides 2 grams cefepime and 1 gram zidebactam. | Every 8 hours |
| 30 to 59 | ZAYNICH 1.5 grams Provides 1 gram cefepime and 0.5 grams zidebactam. | Every 8 hours |
| 15 to 29 | ZAYNICH 1.5 grams | Every 12 hours |
| 8 to 14 (with or without IHD) On hemodialysis days, recommended dose should be administered after a hemodialysis session. On days, when hemodialysis is not performed, administer 24 hours after the previous dose. | ZAYNICH 1.5 grams | Every 24 hours |
Preparation and administration
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Preparation and Administration Instructions for ZAYNICH Preparation ZAYNICH is supplied as a sterile dry powder in a single-dose vial that must be reconstituted and further diluted prior to intravenous infusion as outlined below. ZAYNICH does not contain preservatives. Aseptic techniques must be used for reconstitution and dilution.
Prepare the required dose for intravenous infusion using the steps described below: 1. Reconstitute the powder in the ZAYNICH vial with 10 mL of 0.9% Sodium Chloride Injection, or 5% Dextrose Injection, or Lactated Ringer's solution from a 100 mL infusion bag or with 10 mL of sterile Water for Injection. 2. Mix gently to dissolve the content.
The reconstituted ZAYNICH solution will have a resultant concentration of approximately 240 mg/mL. The final volume is approximately 13 mL. 3. The reconstituted ZAYNICH solution is not for direct injection and must be further diluted, prior to administration as described in Step 4 below. 4. The reconstituted solution should be used immediately after preparation or within the stability period, as described below: 5.
The reconstituted ZAYNICH solution can be stored for up to 6 hours at 20°C to 25°C (68°F to 77°F) or up to 12 hours at 2°C to 8°C (36°F to 46°F). After reconstitution, retain the vial in the outer carton to protect it from light. 6. The reconstituted solution must be diluted further in the 100 mL infusion bag used in Step 1.
For example: If reconstitution in Step 1 is performed with 5% dextrose, the dilution in Step 3 should be performed with the 100 mL infusion bag of 5% dextrose from Step 1. 7. To dilute the reconstituted solution, withdraw the full or partial reconstituted vial contents and add it into the infusion bag in accordance with Table 2 below. 8.
If the ZAYNICH powder is reconstituted in sterile Water for Injection, withdraw 10 mL volume from a 100 mL infusion bag (0.9% Sodium Chloride Injection, or 5% Dextrose Injection, or Lactated Ringer's solution), discard the 10 mL volume withdrawn from the infusion bag and use this bag for the dilution of the reconstituted solution. 9.
Administer the final diluted ZAYNICH solution for infusion within 12 hours, if stored at room temperature 20°C to 25°C (68°F to 77°F) or within 24 hours, if stored refrigerated at 2°C to 8°C (36°F to 46°F). [See table below.] 1.5 grams (1 gram cefepime and 0.5 grams zidebactam) 1 vial 6.5 mL 100 mL Administration ZAYNICH is administered by intravenous infusion over 1 hour after reconstitution and further dilution as described above.
Visually inspect the diluted ZAYNICH solution. Parenteral drug products should be inspected visually for absence of particulate matter and discoloration prior to administration, whenever solution and container permit. Similar to other cephalosporins, the reconstituted solution of ZAYNICH in the vial or the final solution for infusion may develop a yellow to amber color.
Use only if prepared solution is clear and free from particulate matter. Administer the entire volume of the final diluted ZAYNICH solution for infusion by intravenous infusion over 1 hour [ see Dosage and Administration ( 2.1 , 2.2 ) ].
Drug Compatibility ZAYNICH is compatible with 0.9% Sodium Chloride Injection, 5% Dextrose Injection, Lactated Ringer's solution, and sterile Water for Injection. Compatibility of ZAYNICH solution for administration with other drugs has not been established.
| ZAYNICH (cefepime and zidebactam) Dose | Number of Vials to Reconstitute for Further Dilution | Volume to Withdraw from Each Reconstituted Vial for Further Dilution | Approximate Volume of Infusion Bag If 250 mL infusion bag is used, discard 150 mL and follow the same steps listed above. |
| 3 grams (2 grams cefepime and 1 gram zidebactam) | 1 vial | 13 mL | 100 mL |
| 1.5 grams (1 gram cefepime and 0.5 grams zidebactam) | 1 vial | 6.5 mL | 100 mL |
Drug interactions
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- Zidebactam and cefepime
Label text (4 paragraphs)
7 DRUG INTERACTIONS
7.1 Aminoglycosides Monitor renal function if aminoglycosides are to be administered with ZAYNICH because of the increased potential of nephrotoxicity and ototoxicity of aminoglycoside antibacterial drugs.
7.2 Diuretics Nephrotoxicity has been reported following concomitant administration of other cephalosporins with potent diuretics such as furosemide. Monitor renal function when ZAYNICH is concomitantly administered with potent diuretics.
7.3 Drug/Laboratory Test Interactions The administration of ZAYNICH may result in a false-positive reaction for glucose in the urine with certain methods. It is recommended that glucose tests based on enzymatic glucose oxidase reactions be used.
Supplement interactions
Dietary supplement interactions
1 noted- Antibiotics can destroy vitamin K-producing bacteria in the gut, potentially decreasing vitamin K status. This effect might be more pronounced with cephalosporin antibiotics, such as cefoperazone (Cefobid), because these antibiotics might also inhibit the action of vitamin K in the body.
Contraindications
4 CONTRAINDICATIONS ZAYNICH is contraindicated in patients with a known history of serious hypersensitivity to the components of ZAYNICH (cefepime and zidebactam) or other beta-lactam antibacterial drugs [ see Warnings and Precautions ( 5.1 ) ]. ZAYNICH is contraindicated in patients with a known history of serious hypersensitivity to the components of ZAYNICH (cefepime and zidebactam) or other beta-lactam antibacterial drugs. ( 4 )
Safety data
Reported adverse events (FAERS)
Liver injury (LiverTox)
LiverTox has no chapter for zidebactam and cefepime. Check the label's hepatic warnings.
Pregnancy and lactation
Pregnancy
8.1 Pregnancy Risk Summary There are no data for the use of ZAYNICH, or zidebactam, a component of ZAYNICH, during pregnancy to evaluate for a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes. Available data from published observational studies and case reports over several decades with cephalosporin use, including cefepime, in pregnant women have not established the drug-associated risks of major birth defects, miscarriage or adverse maternal or fetal outcomes. Cefepime Cefepime was not associated with adverse developmental outcomes in rats, mice, or rabbits when administered parenterally during organogenesis.
The doses used in these studies were 1.6 (rats), approximately equal to (mice), and 0.3 times (rabbits) the recommended human dose of cefepime in ZAYNICH (see Data). Zidebactam Intravenous administration of zidebactam to pregnant rats during organogenesis showed no evidence of maternal or embryo-fetal toxicity at a dose of 800 mg/kg/day, approximately 5 times the recommended human dose (RHD; 1 gram zidebactam administered every 8 hours) based on plasma area under the concentration-time curve (AUC) comparison.
In pregnant rabbits, intravenous administration of zidebactam during organogenesis was associated with increased late fetal resorptions and total fetal loss in two litters at a dose of 600 mg/kg/day (approximately 5 times the RHD) and distended bladder, a fetal anomaly, at zidebactam doses greater than or equal to 300 mg/kg/day (approximately 3 times the RHD). In a pre-postnatal study, zidebactam administered intravenously to pregnant rats during organogenesis and through the lactation period was not associated with maternal toxicity or adverse effects in first- and second-generation offspring at a maternal dose of 800 mg/kg/day, approximately 5 times the RHD (see Data).
The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively.
Data Human Data Cefepime While available studies cannot definitively establish the absence of risk, published data from case-control studies and case reports over several decades have not identified an association with cephalosporin use, including cefepime, during pregnancy and major birth defects, miscarriage, or other adverse maternal or fetal outcomes.…
For breastfeeding, also see LactMed (National Library of Medicine), which summarizes milk levels and infant effects.
Supply and cost
Drug shortage status
Recalls (last 24 months)
Therapeutic equivalence (Orange Book)
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