IMIPENEM / CILASTATIN

(Primaxin)

Standard Prescription

imipenem/cilastatin__mg IV Q   H (__mg/kg/24hr)

Dosages

All doses are based on imipenem content

Children:  
15 - 25 mg/kg/dose IV Q6H
Maximum:   1000 mg/dose

Adults:
500 - 1000 mg IV q6h
Maximum:  1000 mg/dose

Mechanism of Action

Carbapenem antibiotic

Forms Supplied

injection: 500 mg imipenem and 500 mg cilastatin per vial

Comments

Not to be used for meningitis.

Cilastin blocks the metabolism of imipenem in the kidney.

Dose adjustment required in renal impairment.

Doses greater than 500 mg have a higher incidence of nausea/vomiting; slower infusion rates may decrease incidence of nausea/vomiting.

Seizures may occur, especially in those with underlying CNS disease, with overdose in patients with renal failure and with other predisposing factors.

Meropenem causes less nausea and vomiting and has a decreased risk of seizures compared to imipenem.

References

6, 44

Last Edited

2022-07-03 18:37:02