Drug Guide
Cefepime Hydrochloride
Classification
Therapeutic: Antibiotic, Broad-spectrum cephalosporin
Pharmacological: Beta-lactam antibiotic
FDA Approved Indications
- Treatment of severe bacterial infections caused by susceptible organisms, including pneumonia, febrile neutropenia, urinary tract infections, skin and soft tissue infections, intra-abdominal infections, and meningitis.
Mechanism of Action
Cefepime inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins, leading to cell lysis and death. It is resistant to many beta-lactamases, providing broad-spectrum activity.
Dosage and Administration
Adult: Typically 1-2 g every 8-12 hours intravenously, dosage adjusted based on infection severity and renal function.
Pediatric: Dosing varies; generally 50-100 mg/kg/day divided every 8-12 hours, adjusted for renal function.
Geriatric: Use with caution; start at lower doses due to decreased renal function.
Renal Impairment: Dose adjustments required, based on creatinine clearance.
Hepatic Impairment: No specific adjustment necessary.
Pharmacokinetics
Absorption: Administered IV; not absorbed orally.
Distribution: Widely distributed, including cerebrospinal fluid (CSF).
Metabolism: Minimal hepatic metabolism; primarily excreted unchanged.
Excretion: Renal excretion via glomerular filtration and tubular secretion.
Half Life: Approximately 2 hours in patients with normal renal function.
Contraindications
- Known hypersensitivity to cefepime or other cephalosporins.
Precautions
- Use cautiously in patients with allergies to penicillin or other beta-lactam antibiotics.
Adverse Reactions - Common
- Pain at injection site (Common)
- Rash (Common)
- Headache (Common)
Adverse Reactions - Serious
- Anaphylaxis (Rare)
- Seizures (Rare, increased risk in renal impairment)
- Clostridioides difficile-associated diarrhea (Rare)
Drug-Drug Interactions
- Probenecid (may increase cefepime levels).
- Aminoglycosides (potential nephrotoxicity).
Drug-Food Interactions
N/ADrug-Herb Interactions
N/ANursing Implications
Assessment: Monitor renal function, electrolyte balance, and for allergic reactions.
Diagnoses:
- Risk for allergic reaction
- Risk for infection related to antibiotic therapy
- Impaired skin integrity at injection site
Implementation: Administer IV as prescribed; monitor for adverse reactions; adjust dose in renal impairment.
Evaluation: Assess infection resolution, monitor labs, and watch for side effects.
Patient/Family Teaching
- Complete full course of therapy.
- Report any signs of allergic reaction or unusual side effects.
- Inform about possible diarrhea and to seek medical attention if severe or persistent.
Special Considerations
Black Box Warnings:
- Risk of hypersensitivity reactions, including anaphylaxis.
Genetic Factors: None specified.
Lab Test Interference: May cause false elevations in urine glucose testing with some methods.
Overdose Management
Signs/Symptoms: Neurotoxicity including seizures, confusion, and coma in severe overdose.
Treatment: Supportive care; no specific antidote; consider dialysis in severe cases.
Storage and Handling
Storage: Store at room temperature 20-25°C (68-77°F). Protect from light.
Stability: Stable under recommended storage conditions; discard after expiration.