Imipenem, cilastatin, and relebactam

FDA label, intravenous, effective 2025-12-09. Full label on DailyMed

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Dosing in kidney impairment

Recommended Dosage in Adult Patients with Renal Impairment Adult patients who have a CLcr less than 90 mL/min require dosage reduction of RECARBRIO. The recommended dosage of RECARBRIO in adult patients with renal impairment is shown in Table 2 . [See table below.] Do not administer RECARBRIO to adult patients with CLcr less than 15 mL/min unless hemodialysis is instituted within 48 hours after dose administration.

Imipenem, cilastatin, and relebactam are cleared from the circulation during hemodialysis. For adult patients maintained on hemodialysis, administer the recommended dose of RECARBRIO after hemodialysis and at intervals timed from the end of that hemodialysis session. There is inadequate information to recommend dosage of RECARBRIO for adults undergoing peritoneal dialysis.

Recommended Dosage in Pediatric Patients Weighing at Least 30 kg with Renal Impairment Pediatric patients weighing at least 30 kg who have an estimated glomerular filtration rate (eGFR) less than 90 mL/min/1.73m 2 require dosage reduction of RECARBRIO. The recommended dosage of RECARBRIO in pediatric patients weighing at least 30 kg with renal impairment is shown in Table 3 .

There is insufficient information to recommend a dosage of RECARBRIO for pediatric patients weighing less than 30 kg with any degree of renal impairment. [See table below.] Do not administer RECARBRIO to pediatric patients weighing at least 30 kg with an eGFR less than 15 mL/min/1.73m 2 unless hemodialysis is instituted within 48 hours after dose administration.

Imipenem, cilastatin, and relebactam are cleared from the circulation during hemodialysis. For pediatric patients weighing at least 30 kg maintained on hemodialysis, administer the recommended dose of RECARBRIO after hemodialysis and at intervals timed from the end of that hemodialysis session. There is inadequate information to recommend a dosage of RECARBRIO for pediatric patients undergoing peritoneal dialysis.

Table 2: Recommended Dosage of RECARBRIO in Adult Patients with Renal Impairment
Creatinine Clearance (CLcr) ([mL/min)]CLcr calculated using the Cockcroft-Gault formula for adult patients.DoseRECARBRIO is provided as a single vial in a fixed-dose combination; the dose for each component will be adjusted equally during preparation [see Dosage and Administration (2.5)].Dosing FrequencyInfusion Duration
60 to 89RECARBRIO 1 gramProvides 400 mg imipenem, 400 mg cilastatin, and 200 mg relebactamEvery 6 hours30 minutes
30 to 59RECARBRIO 0.75 gramsProvides 300 mg imipenem, 300 mg cilastatin, and 150 mg relebactamEvery 6 hours30 minutes
15 to 29 not receiving hemodialysisRECARBRIO 0.5 gramsProvides 200 mg imipenem, 200 mg cilastatin, and 100 mg relebactamEvery 6 hours30 minutes
Receiving hemodialysisAdministration should be timed to follow hemodialysis and at intervals timed from the end of that hemodialysis session.RECARBRIO 0.5 gramsEvery 6 hours30 minutes
Less than 15 not receiving hemodialysisNot recommended
Table 3. Recommended Dosage of RECARBRIO in Pediatric Patients Weighing at Least 30 kg with Renal Impairment
eGFR (mL/min/1.73 m2)Calculated using a GFR estimating equation validated in pediatric patients weighing at least 30 kg.Recommended DoseRECARBRIO is provided as a single vial in a fixed-dose combination; the dose for each component will be adjusted equally during preparation [see Dosage and Administration (2.5)].Dosing FrequencyInfusion Duration
60 to 89RECARBRIO 1 gramProvides 400 mg imipenem, 400 mg cilastatin, and 200 mg relebactamEvery 6 hours30 minutes
30 to 59RECARBRIO 0.75 gramsProvides 300 mg imipenem, 300 mg cilastatin, and 150 mg relebactamEvery 6 hours30 minutes
15 to 29 not receiving hemodialysisRECARBRIO 0.5 gramsProvides 200 mg imipenem, 200 mg cilastatin, and 100 mg relebactamEvery 6 hours30 minutes
Receiving hemodialysisAdministration should be timed to follow hemodialysis and at intervals timed from the end of that hemodialysis session.RECARBRIO 0.5 gramsEvery 6 hours30 minutes
Less than 15 not receiving hemodialysisNot recommended
Table 4: Preparation of Reduced RECARBRIO Doses for Intravenous Administration in Adult and Pediatric Patients Weighing at Least 30 kg with Renal Impairment
Estimated Renal Function Creatinine Clearance (mL/min) Calculated using the Cockcroft-Gault formula for adult patients Or Estimated Glomerular Filtration Rate eGFR (mL/min/1.73 m2)Calculated using a GFR estimating equation validated in pediatric patients weighing at least 30 kgDoseAfter preparation as instructed above, remove from the 100 mL prepared bag the volume indicated below and discardResulting volume that provides the indicated reduced dose
60 to 89RECARBRIO 1 gramProvides 400 mg imipenem, 400 mg cilastatin, and 200 mg relebactam20 mL80 mL
30 to 59RECARBRIO 0.75 gramsProvides 300 mg imipenem, 300 mg cilastatin, and 150 mg relebactam40 mL60 mL
15 to 29 not receiving hemodialysisRECARBRIO 0.5 gramsProvides 200 mg imipenem, 200 mg cilastatin, and 100 mg relebactam60 mL40 mL
Receiving hemodialysisRECARBRIO 0.5 grams60 mL40 mL

Preparation and administration

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Basis

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Preparation of RECARBRIO Solution for Intravenous Administration RECARBRIO is supplied as a dry powder in a single-dose vial that must be constituted and further diluted using aseptic technique prior to intravenous infusion. To prepare the infusion solution, contents of the vial must be constituted with the appropriate diluent as instructed below.

A list of appropriate diluents is as follows: 0.9% Sodium Chloride Injection, USP 5% Dextrose Injection, USP 5% Dextrose Injection, USP + 0.9% Sodium Chloride Injection, USP 5% Dextrose Injection, USP + 0.45% Sodium Chloride Injection, USP 5% Dextrose Injection, USP + 0.225% Sodium Chloride Injection, USP RECARBRIO has low aqueous solubility.

To ensure complete dissolution of RECARBRIO it is important to adhere to the following instructions: Step 1) For diluents available in 100 mL prefilled infusion bags, proceed to step 2. For diluents not available in 100 mL prefilled infusion bags, aseptically withdraw 100 mL of the desired diluent and transfer it to an empty infusion bag, then proceed to step 2.

Step 2) Withdraw 20 mL (as two 10 mL aliquots) of diluent from the appropriate infusion bag and constitute the vial with one 10 mL aliquot of the diluent. The constituted suspension is for intravenous infusion only after dilution in an appropriate infusion solution. Step 3) After constitution, shake vial well and transfer resulting suspension into the remaining 80 mL of the infusion bag.

Step 4) Add the second 10 mL aliquot of infusion diluent to the vial and shake well to ensure complete transfer of vial contents; repeat transfer of the resulting suspension to the infusion solution before administering. Agitate the resulting mixture until clear. Constituted solutions of RECARBRIO range from colorless to yellow.

Variations of color within this range do not affect the potency of the product. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Discard if discoloration or visible particles are observed. The above instructions for preparation of RECARBRIO solution for intravenous administration must be followed for all patients, irrespective of the intended patient’s renal function, age or weight.

The volume of this prepared RECARBRIO solution to be administered in adult and pediatric (weighing at least 30 kg) patients is determined based on estimated renal function [see Dosage and Administration ] . The volume of the prepared RECARBRIO solution to be administered to pediatric patients weighing 2 kg to less than 30 kg with normal renal function is calculated based on patient weight using the formula below [see Dosage and Administration ]: To achieve the appropriate infusion volume, withdraw and discard the excess (100 mL minus the infusion volume) from the prepared 100 mL solution.

The remaining volume is the appropriate infusion volume. Figure

Preparation of RECARBRIO Solution for Intravenous Administration in Adult and Pediatric Patients Weighing at Least 30 kg with Renal Impairment Prepare a reduced dose of RECARBRIO (1 gram, 0.75 grams, or 0.5 grams) [see Dosage and Administration (2.3 , 2.4) ] by preparing a 100 mL solution containing 1.25 grams as described above [see Dosage and Administration ] then withdrawing and discarding the excess according to Table 4 . [See table below.] 60 mL 15 to 29 not receiving hemodialysis RECARBRIO 0.5 grams Provides 200 mg imipenem, 200 mg cilastatin, and 100 mg relebactam 60 mL 40 mL Receiving hemodialysis RECARBRIO 0.5 grams 60 mL 40 mL

Storage of Constituted Solution RECARBRIO, as supplied in single-dose glass vials upon constitution with the appropriate diluent and following further dilution in the infusion bag, maintains satisfactory potency for at least 2 hours at room temperature (up to 30°C) or for at least 24 hours under refrigeration at 2°C to 8°C (36°F to 46°F).

Do not freeze solutions of RECARBRIO.

Compatible Injectable Drug Products Compatible Drug Products The physical compatibility of RECARBRIO with selected injectable drug products was evaluated in two commonly available diluents. Compatible drugs with the corresponding compatible diluent (i.e., 5% Dextrose Injection, USP or 0.9% Sodium Chloride Injection, USP) are listed below.

RECARBRIO should not be co-administered through the same intravenous line (or cannula), with other drug products not listed below, as no compatibility data are available. Refer to the respective prescribing information of the co-administered drug(s) to confirm compatibility of simultaneous co-administration. List of Compatible Injectable Drugs for use with 5% Dextrose USP or 0.9% Sodium Chloride USP Injection as Diluents dexmedetomidine dopamine epinephrine fentanyl heparin midazolam norepinephrine phenylephrine

Incompatible Injectable Drug Products RECARBRIO for injection for intravenous infusion is physically incompatible with propofol in 5% Dextrose USP or 0.9% Sodium Chloride USP.

Recommended Dosage of RECARBRIO In Pediatric Patients Weighing at Least 2 kg
Age RangeBody WeightDoseDosing FrequencyInfusion Duration
BirthPediatric patients from birth (includes pediatric patients at least 37 weeks post-menstrual age) to less than 3 months2 kg or greaterRECARBRIO 37.5Provides 15 mg/kg imipenem, 15 mg/kg cilastatin, and 7.5 mg/kg relebactam mg/kgEvery 8 hours60 minutes
3 months to less than 18 yearsless than 30 kgRECARBRIO 37.5 mg/kgEvery 6 hours60 minutes
3 months to less than 18 years30 kg or greaterRECARBRIO 1.25Provides 500 mg imipenem, 500 mg cilastatin, and 250 mg, relebactam gramsEvery 6 hours30 minutes
Table 1: Recommended Dosage of RECARBRIO In Pediatric Patients Weighing at Least 2 kg
Age RangeBody WeightDoseDosing FrequencyInfusion Duration
BirthPediatric patients from birth (includes pediatric patients at least 37 weeks post-menstrual age) to less than 3 months2 kg or greaterRECARBRIO 37.5Provides 15 mg/kg imipenem, 15 mg/kg cilastatin, and 7.5 mg/kg relebactam mg/kgEvery 8 hours60 minutes
3 months to less than 18 yearsless than 30 kgRECARBRIO 37.5 mg/kgEvery 6 hours60 minutes
3 months to less than 18 years30 kg or greaterRECARBRIO 1.25Provides 500 mg imipenem, 500 mg cilastatin, and 250 mg, relebactam gramsEvery 6 hours30 minutes
Table 3. Recommended Dosage of RECARBRIO in Pediatric Patients Weighing at Least 30 kg with Renal Impairment
eGFR (mL/min/1.73 m2)Calculated using a GFR estimating equation validated in pediatric patients weighing at least 30 kg.Recommended DoseRECARBRIO is provided as a single vial in a fixed-dose combination; the dose for each component will be adjusted equally during preparation [see Dosage and Administration (2.5)].Dosing FrequencyInfusion Duration
60 to 89RECARBRIO 1 gramProvides 400 mg imipenem, 400 mg cilastatin, and 200 mg relebactamEvery 6 hours30 minutes
30 to 59RECARBRIO 0.75 gramsProvides 300 mg imipenem, 300 mg cilastatin, and 150 mg relebactamEvery 6 hours30 minutes
15 to 29 not receiving hemodialysisRECARBRIO 0.5 gramsProvides 200 mg imipenem, 200 mg cilastatin, and 100 mg relebactamEvery 6 hours30 minutes
Receiving hemodialysisAdministration should be timed to follow hemodialysis and at intervals timed from the end of that hemodialysis session.RECARBRIO 0.5 gramsEvery 6 hours30 minutes
Less than 15 not receiving hemodialysisNot recommended

Drug interactions

Check imipenem, cilastatin, and relebactam against a medication list
Label text (4 paragraphs)

Ganciclovir: Avoid concomitant use. ( 7.1 ) Valproic Acid or Divalproex Sodium: Avoid concomitant use. ( 7.2 )

7.1 Ganciclovir Generalized seizures have been reported in patients who received ganciclovir concomitantly with imipenem/cilastatin, a component of RECARBRIO. Ganciclovir should not be used concomitantly with RECARBRIO unless the potential benefits outweigh the risks.

7.2 Valproic Acid Based on case reports in the literature concomitant use of carbapenems, including imipenem/cilastatin, components of RECARBRIO, with valproic acid or divalproex sodium may decrease valproic acid concentrations which may increase the risk of breakthrough seizures [see Warnings and Precautions (5.3) ] . Although the mechanism of this interaction is unknown, data from in vitro and animal studies suggest that carbapenems may inhibit the hydrolysis of valproic acid's glucuronide metabolite (VPA-g) back to valproic acid, thus decreasing the serum concentrations of valproic acid . Avoid concomitant use of RECARBRIO with valproic acid or divalproex sodium.

Consider alternative antibacterials other than carbapenems to treat infections in patients whose seizures are well controlled on valproic acid or divalproex sodium.

Contraindications

4 CONTRAINDICATIONS RECARBRIO is contraindicated in patients with a history of known severe hypersensitivity (severe systemic allergic reaction such as anaphylaxis) to any component of RECARBRIO. RECARBRIO is contraindicated in patients with a history of known severe hypersensitivity to any component of RECARBRIO. ( 4 )

Pregnancy and lactation

Pregnancy

8.1 Pregnancy Risk Summary Embryonic loss was observed in monkeys treated with imipenem/cilastatin, and fetal abnormalities were observed in relebactam-treated mice; therefore, advise pregnant women of the potential risks to pregnancy and the fetus. There are insufficient human data to establish whether there is a drug-associated risk for major birth defects, miscarriage, or adverse maternal or fetal outcomes with RECARBRIO, imipenem, cilastatin, or relebactam in pregnant women.

Developmental toxicity studies with imipenem and cilastatin (alone or in combination) administered parenterally during organogenesis to mice, rats, rabbits, and monkeys at doses 1 to 5 times the maximum recommended human dose (MRHD of imipenem 500 mg/cilastatin 500 mg every 6 hours for total daily doses of imipenem 2000 mg/cilastatin 2000 mg) based on body surface area comparison, showed no drug-induced fetal malformations. Embryofetal development studies with imipenem/cilastatin administered to cynomolgus monkeys at doses similar to the MRHD (based on body surface area comparison) showed an increase in embryonic loss.

In an embryofetal study, parental administration of relebactam to pregnant mice during the period of organogenesis was associated with a non-dose responsive increase in the litter incidence of cleft palate at a plasma relebactam exposure approximately equal to the human exposure at the MRHD (250 mg every 6 hours for a daily dose of 1000 mg) and an increased percent litter incidence of total skeletal malformations at a plasma exposure approximately 6 times the human exposure at the MRHD.

Reproductive studies with relebactam administered parenterally to pregnant rats and rabbits during the period of organogenesis at plasma exposures up to 7 and 24 times, respectively, the plasma exposure in humans at the MRHD showed no adverse effects on pregnancy or embryofetal development. Relebactam administered to rats during gestation through lactation was not associated with fetal toxicity, developmental delays, or impaired reproduction in first generation offspring at plasma exposures equivalent to 8 times the human exposure at the MRHD (see Data ) . The background risk of major birth defects and miscarriage for the indicated populations is unknown.

All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. The estimated background risk of major birth defects is 2 to 4% and miscarriage is 15 to 20% of clinically recognized pregnancies within the U.S. general population. Data Animal Data Imipenem and Cilastatin Reproductive toxicity studies with…

For breastfeeding, also see LactMed (National Library of Medicine), which summarizes milk levels and infant effects.

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