Meropenem
Dosing in kidney impairment
Use in Adult Patients with Renal Impairment Dosage should be reduced in patients with creatinine clearance of 50 mL/min or less. (See dosing table below.) When only serum creatinine is available, the following formula (Cockcroft and Gault equation) 1 may be used to estimate creatinine clearance. Males: Creatinine Clearance (mL/min) = Weight (kg) x (140 - age) __ 72 x serum creatinine (mg/dL) Females: 0.85 x above value [See table below.] There is inadequate information regarding the use of Meropenem for injection in patients on hemodialysis or peritoneal dialysis.
| Recommended Meropenem for injection Dosage Schedule for Adult Patients with Renal Impairment | ||
| Creatinine Clearance (mL/min) | Dose (dependent on type of infection) | Dosing Interval |
| Greater than 50 | Recommended dose (500 mg cSSSI and 1 gram Intra-abdominal) | Every 8 hours |
| 26 to 50 | Recommended dose | Every 12 hours |
| 10 to 25 | One-half recommended dose | Every 12 hours |
| Less than 10 | One-half recommended dose | Every 24 hours |
| Intravenous infusion is to be given over 30 minutes.There is no experience in pediatric patients with renal impairment.GA: gestational age and PNA: postnatal age | |||||
| Recommended Meropenem for injection Dosage Schedule for Pediatric Patients 3 Months of Age and Older with Normal Renal Function (2.3) | |||||
| Type of Infection | Dose (mg/kg) | Up to a Maximum Dose | Dosing Interval | ||
| Complicated skin and skin structure* | 10 | 500 mg | Every 8 hours | ||
| Intra-abdominal | 20 | 1 gram | Every 8 hours | ||
| Meningitis | 40 | 2 gram | Every 8 hours | ||
| - Intravenous infusion is to be given over approximately 15 minutes to 30 minutes.- Intravenous bolus injection (5 mL to 20 mL) is to be given over approximately 3 minutes to 5 minutes.- There is no experience in pediatric patients with renal impairment. *20 mg/kg (or 1 gram for pediatric patients weighing over 50 kg) every 8 hours is recommended when treating complicated skin and skin structure infections caused by P. aeruginosa (2.3).Pediatric patients less than 3 months of age | |||||
| Recommended Meropenem for injection Dosage Schedule for Pediatric Patients Less than 3 Months of Age with Complicated Intra-Abdominal Infections and Normal Renal Function (2.3) | |||||
| Age Group | Dose (mg/kg) | Dose Interval | |||
| Infants less than 32 weeks GA and PNA less than 2 weeks | 20 | Every 12 hours | |||
| Infants less than 32 weeks GA and PNA 2 weeks and older | 20 | Every 8 hours | |||
| Infants 32 weeks and older GA and PNA less than 2 weeks | 20 | Every 8 hours | |||
| Infants 32 weeks and older GA and PNA 2 weeks and older | 30 | Every 8 hours | |||
| Creatinine Clearance(mL/min) | Dose (dependent on type of infection) | Dosing Interval |
| Greater than 50 | Recommended dose (500 mg cSSSI and 1 gram Intra-abdominal) | Every 8 hours |
| 26 to 50 | Recommended dose | Every 12 hours |
| 10 to 25 | One-half recommended dose | Every 12 hours |
| Less than 10 | One-half recommended dose | Every 24 hours |
| Type of Infection | Dose (mg/kg) | Up to a Maximum Dose | Dosing Interval |
| Complicated skin and skin structure infections | 10 | 500 mg | Every 8 hours |
| Complicated intra-abdominal infections | 20 | 1 gram | Every 8 hours |
| Meningitis | 40 | 2 grams | Every 8 hours |
Preparation and administration
Preparation and Administration of Meropenem for injection Important Administration Instructions: Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. For Intravenous Bolus Administration Re-constitute injection vials (500 mg and 1 gram) with sterile Water for Injection (see table 4 below).
Shake to dissolve and let stand until clear. Discard unused portion. Table 4: Volume of Sterile Water for Injection for Reconstitution of Injection Vials [See table below.] 0 mg 10 10 50 1 gram 20 20 50 For Infusion
Injection vials (500 mg and 1 gram) may be directly re-constituted with a compatible infusion fluid.
Alternatively, an injection vial may be re-constituted, then the resulting solution added to an intravenous container and further diluted with an appropriate infusion fluid [ see Dosage and Administration and ].
Do not use flexible container in series connections.
Compatibility Compatibility of Meropenem with other drugs has not been established. Meropenem should not be mixed with or physically added to solutions containing other drugs.
Stability and Storage Freshly prepared solutions of Meropenem should be used. However, re-constituted solutions of Meropenem maintain satisfactory potency under the conditions described below. Solutions of intravenous Meropenem should not be frozen. Intravenous Bolus Administration Meropenem injection vials re-constituted with sterile Water for Injection for bolus administration (up to 50 mg/mL of Meropenem) may be stored for up to 3 hours at up to 25°C (77°F) or for 13 hours at up to 5°C (41°F).
Intravenous Infusion Administration Solutions prepared for infusion (Meropenem concentrations ranging from 1 mg/mL to 20 mg/mL) re-constituted with Sodium Chloride Injection 0.9% may be stored for 1 hour at up to 25°C (77°F) or 15 hours at up to 5°C (41°F). Solutions prepared for infusion (Meropenem concentrations ranging from 1 mg/mL to 20 mg/mL) re-constituted with Dextrose Injection 5% should be used immediately.
| Intravenous infusion is to be given over 30 minutes.There is no experience in pediatric patients with renal impairment.GA: gestational age and PNA: postnatal age | |||||
| Recommended Meropenem for injection Dosage Schedule for Pediatric Patients 3 Months of Age and Older with Normal Renal Function (2.3) | |||||
| Type of Infection | Dose (mg/kg) | Up to a Maximum Dose | Dosing Interval | ||
| Complicated skin and skin structure* | 10 | 500 mg | Every 8 hours | ||
| Intra-abdominal | 20 | 1 gram | Every 8 hours | ||
| Meningitis | 40 | 2 gram | Every 8 hours | ||
| - Intravenous infusion is to be given over approximately 15 minutes to 30 minutes.- Intravenous bolus injection (5 mL to 20 mL) is to be given over approximately 3 minutes to 5 minutes.- There is no experience in pediatric patients with renal impairment. *20 mg/kg (or 1 gram for pediatric patients weighing over 50 kg) every 8 hours is recommended when treating complicated skin and skin structure infections caused by P. aeruginosa (2.3).Pediatric patients less than 3 months of age | |||||
| Recommended Meropenem for injection Dosage Schedule for Pediatric Patients Less than 3 Months of Age with Complicated Intra-Abdominal Infections and Normal Renal Function (2.3) | |||||
| Age Group | Dose (mg/kg) | Dose Interval | |||
| Infants less than 32 weeks GA and PNA less than 2 weeks | 20 | Every 12 hours | |||
| Infants less than 32 weeks GA and PNA 2 weeks and older | 20 | Every 8 hours | |||
| Infants 32 weeks and older GA and PNA less than 2 weeks | 20 | Every 8 hours | |||
| Infants 32 weeks and older GA and PNA 2 weeks and older | 30 | Every 8 hours | |||
| Vial Size | Amount of Diluent Added (mL) | Approximate Withdrawable Volume (mL) | Approximate Average Concentration (mg/mL) |
| 500 mg | 10 | 10 | 50 |
| 1 gram | 20 | 20 | 50 |