Xacduro Dosage

Generic name: sulbactam sodium 1g in 5mL; durlobactam sodium 0.5g in 2.5mL
Dosage form: injection kit
Drug class: Beta-lactamase inhibitors

Medically reviewed by Drugs.com. Last updated on Sep 12, 2023.

Recommended Dosage

XACDURO is a co-packaged product containing sulbactam for injection and durlobactam for injection. The recommended dosage of XACDURO is 1 gram (g) of sulbactam and 1 g of durlobactam every 6 hours administered by intravenous (IV) infusion over 3 hours in adults with a creatinine clearance (CLcr) of 45 to 129 mL/min.

Adjustments to the dosing regimen for XACDURO are recommended for patients with CLcr less than 45 mL/min and for patients with CLcr greater than or equal to 130 mL/min [see Dosage and Administration (2.2)].

The recommended duration of treatment with XACDURO is 7 to 14 days. The duration of therapy should be guided by the patient's clinical status.

Dosage in Patients (18 Years of Age and Older) Based on Renal Function

See Table 1 for the recommended dosage of XACDURO in patients (18 years of age and older) based on renal function [see Use in Specific Populations (8.6) and Clinical Pharmacology (12.3)].

Adjustments to the dosing regimen are recommended for patients with creatinine clearance (CLcr) less than 45 mL/min and patients with augmented renal clearance (CLcr greater than or equal to 130 mL/min). For patients undergoing intermittent hemodialysis (HD), start the dosing of XACDURO immediately after the completion of HD.

For patients with fluctuating renal function, monitor CLcr and adjust dosage accordingly [see Use in Specific Populations (8.6)].

Table 1: Dosage of XACDURO (Sulbactam and Durlobactam) in Patients (18 Years of Age and Older) Based on Renal Function
Dose of Sulbactam and Durlobactam (g)	Estimated CLcr (mL/min)*	Frequency
* CLcr = creatinine clearance estimated by Cockcroft-Gault equation † For patients on hemodialysis, the dose should be administered after the dialysis session has ended
sulbactam 1 g and durlobactam 1 g	Greater than or equal to 130	Every 4 hours
	45 to 129	Every 6 hours
	30 to 44	Every 8 hours
	15 to 29	Every 12 hours
	less than 15†	For patients initiating XACDURO: Every 12 hours for the first 3 doses (0, 12, and 24 hours), followed by every 24 hours after the third dose† For patients currently receiving XACDURO whose CLcr declines to less than 15 mL/min: Every 24 hours

Administration

The prepared XACDURO solution [see Dosage and Administration (2.4)] should be brought to ambient room temperature (over 15 to 30 min) prior to infusion to the patient. Administer all doses of XACDURO by intravenous (IV) infusion over 3 hours.

Preparation of XACDURO for Intravenous Administration

XACDURO is a co-packaged kit containing 1 clear single-dose vial of sulbactam 1g and 2 amber single-dose vials of durlobactam 0.5g as sterile powders that must be reconstituted and further diluted using aseptic technique prior to intravenous infusion.

XACDURO does not contain a bacteriostatic preservative and the prepared solution must be used within 24 hours when stored refrigerated at 2°C to 8°C (36°F to 46°F). Discard unused portion.

Items required to prepare XACDURO:

XACDURO kit (includes one sulbactam 1 g single-dose vial and two durlobactam 0.5 g single-dose vials)
100 mL infusion bag containing 0.9% Sodium Chloride Injection, USP
10 mL Sterile Water for Injection, USP
10 mL sterile syringe and alcohol wipes

Preparation of XACDURO:

Reconstitute the sulbactam 1 g single-dose vial with 5 mL of Sterile Water for Injection and gently shake to dissolve. Each reconstituted vial contains 1 g of sulbactam per 5 mL of clear, colorless to slightly yellow solution. The reconstituted solution is not for direct injection and must be diluted before intravenous infusion. Dilution must occur within 1 hour of reconstitution.
Reconstitute each durlobactam 0.5 g single-dose vial with 2.5 mL of Sterile Water for Injection and gently shake to dissolve. Each reconstituted vial contains 0.5 g of durlobactam per 2.5 mL of clear, light yellow to orange solution. The reconstituted solution is not for direct injection and must be diluted before intravenous infusion. Dilution must occur within 1 hour of reconstitution.
To prepare the required XACDURO dose, withdraw 5 mL of reconstituted sulbactam and 5 mL (2.5 mL from each vial) of reconstituted durlobactam. Add the withdrawn volume of both sulbactam and durlobactam to a 100 mL infusion bag of 0.9% Sodium Chloride for Injection, USP. Discard unused portion.

Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. The prepared XACDURO solution should appear as a clear, light yellow to orange solution, free of particulates. If the XACDURO solution is cloudy or contains particulates, do not administer.

Compatibility

XACDURO is compatible with 0.9% Sodium Chloride Injection, USP.

The compatibility of XACDURO for administration with solutions containing other drugs or other diluents has not been established. XACDURO should not be mixed with other drugs or physically added to solutions containing other drugs.

Storage of Prepared Solution in Infusion Bag

Store the prepared bag in the refrigerator at 2°C to 8°C (36°F to 46°F) until administration. The time between starting the reconstitution of the powders and the conclusion of the infusion should not exceed 24 hours. Do not freeze.