INJ pipzo pediatric dose
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piperacillin tazobactam pediatric dosing guidelines 2025
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Here is a comprehensive summary of Inj. Piperacillin-Tazobactam (Pipzo) Pediatric Dosing:
Inj. Piperacillin-Tazobactam (Pipzo) - Pediatric Dose
Doses below are expressed as the piperacillin component unless otherwise stated.
Standard Dosing by Age Group
| Age Group | Dose | Frequency |
|---|---|---|
| Neonates | 160-300 mg/kg/day | Divided q8-12h (2-4 doses/day) |
| Infants 2-9 months | 90 mg/kg/dose | q8h (intra-abdominal) or q6h (nosocomial pneumonia) |
| Children >9 months / 2-12 yrs (≤40 kg) | 100 mg/kg/dose | q8h (standard) |
| Severe infections | 100 mg/kg/dose | q6h |
| Children >40 kg / adolescents | Use adult dosing: 3.375-4.5 g | q6-8h |
Daily dose range (children): 240-300 mg/kg/day in 3-4 divided doses (Katzung)
Indication-Specific Dosing
| Indication | Dose | Source |
|---|---|---|
| Intra-abdominal infection (2-12 yrs, ≤40 kg) | 100 mg/kg/dose q8h | Pfizer/FDA label |
| Febrile neutropenia (<50 kg) | 80 mg/kg/dose q6h (with aminoglycoside) | Pfizer label |
| Skin/Soft tissue / Necrotizing fasciitis | 60-75 mg/kg/dose q6h | IDSA 2014 Guidelines |
| Endocarditis (children) | 240 mg/kg/day in divided doses q8h | AHA Guidelines |
| Surgical prophylaxis | Per ASHP/IDSA/SIS/SHEA weight-based protocol | - |
Max single dose: 4 g (piperacillin component) per dose
Max daily dose: 12-16 g/day (16 g/day for severe infections)
Renal Dose Adjustment (Perth Children's Hospital / ChAMP)
| eGFR (mL/min/1.73m²) | Standard Dose Adjustment | Severe Infection Adjustment |
|---|---|---|
| ≥40 | Normal dosing | Normal dosing |
| 20-40 | 70 mg/kg/dose q8h | 50-70 mg/kg/dose q6h |
| <20 | 70 mg/kg/dose q12h | 50-70 mg/kg/dose q8h |
No dose adjustment required for hepatic impairment alone.
Administration
- Reconstitute 4 g vial with 37 mL NS 0.9% → gives 100 mg/mL
- Infuse IV over 30 minutes (standard); extended/continuous infusion preferred for severe infections
- Continuous infusion (Hospital-in-the-Home): 300-400 mg/kg/day; loading dose = 25% of daily dose over 30 min
Key Points
- Dose is weight-based until child reaches 40-50 kg, then switch to adult dosing
- For severe/resistant infections, q6h dosing or extended infusion improves time-above-MIC (PD target: fT>MIC)
- Always combine with vancomycin for necrotizing fasciitis (mixed infections)
- For febrile neutropenia, combine with an aminoglycoside
Sources: Katzung's Basic & Clinical Pharmacology 16th Ed., Fitzpatrick's Dermatology (IDSA 2014 Guidelines), Tintinalli's Emergency Medicine, Pfizer prescribing information, Perth Children's Hospital ChAMP Monograph, Drugs.com dosage guide (updated Nov 2025)
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