section name header

Pronunciation

pi-PER-a-sill-in/tay-zoe-BAK-tam

Classifications

Therapeutic Classification: anti-infectives

Pharmacologic Classification: extended spectrum penicillins

Indications

REMS


Action

Piperacillin

  • Binds to bacterial cell wall membrane, causing cell death. Spectrum is extended compared with other penicillins.

Tazobactam

  • Inhibits beta-lactamase, an enzyme that can destroy penicillins.
Therapeutic effects:
  • Death of susceptible bacteria.

Spectrum:

Pharmacokinetics

Absorption: IV administration results in complete bioavailability.

Distribution: Widely distributed. Enters CSF well only when meninges are inflamed.

Metabolism/Excretion: Piperacillin (68%) and tazobactam (80%) are mostly excreted unchanged by the kidneys.

Half-Life: Adults: 0.7–1.2 hr; Children (6 mo–12 yr): 0.7–0.9 hr; Infants (2–5 mo): 1.4 hr.

Time/Action Profile

(piperacillin plasma concentrations)

ROUTEONSETPEAKDURATION
IVrapidend of infusion4–6 hr



Contraind./Precautions

Contraindicated in:

Use Cautiously in:

Adv. Reactions/Side Effects

Interactions

Drug-drug:

Route/Dosage

Appendicitis/Peritonitis

Renal Impairment

Nosocomial Pneumonia

Renal Impairment

Skin and Skin Structure Infections, Gynecologic Infections, and Community-Acquired Pneumonia

Renal Impairment

Availability

(Generic available)

Assessment

Lab Test Considerations:

Implementation

Patient/Family Teaching

Evaluation/Desired Outcomes

US Brand Names

Zosyn

Code

NDC Code