Can cefepime treat a cold or the flu?

No, cefepime is an antibacterial drug and will not work for viral infections like the common cold or flu.

What should I do if I experience diarrhea while taking cefepime?

Contact your doctor immediately if you develop watery or bloody stools, as this could be a sign of a serious infection called C. difficile.

Is cefepime safe if I am allergic to penicillin?

You should use caution, as up to 10% of people with a penicillin allergy may also react to cefepime.

What are the signs of a serious brain reaction to cefepime?

Watch for confusion, hallucinations, trouble speaking, seizures, or extreme sleepiness, and inform your healthcare provider at once.

Why is it important to finish the full course of cefepime?

Skipping doses or stopping early can make the treatment less effective and help bacteria become resistant to the drug.

Can cefepime cause kidney problems?

Yes, especially when used with certain diuretics or aminoglycosides, so kidney function should be monitored.

What should I do if I miss a dose of cefepime?

The medication should be taken exactly as directed by your healthcare provider.

Is cefepime used for skin infections?

Yes, cefepime is indicated for treating uncomplicated skin and skin structure infections.

Cefepime | CAS 88040-23-7 | HVFLCNVBZFFHBT

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Cephalosporin antibacterial

Cefepime is an antibacterial medicine used to treat various serious bacterial infections, such as pneumonia and urinary tract infections. It belongs to a group of drugs called cephalosporins and is typically given by injection into a vein or muscle.

How it worksCefepime works by fighting bacteria to stop them from growing and spreading in the body.

Brand names:Cefepime

Used for

Pneumonia (moderate to severe)Febrile neutropenic patients (empiric therapy)Urinary tract infections (uncomplicated and complicated)Skin and skin structure infectionsComplicated abdominal infections (used with metronidazole)

Conditions

Bacterial infectionsSeptic shockPyelonephritisOsteomyelitis

Class

AntibacterialCephalosporinCephalosporin antibacterialRespiratoryUrinaryIntegumentaryGastrointestinal

How to take

FormsInjection

RoutesIntravenous (IV), Intramuscular (IM)

Doses vary based on the type of infection and kidney function. Adults typically receive doses every 8 to 12 hours, while pediatric patients receive doses based on their body weight.

Cefepime should only be used for infections that are proven or strongly suspected to be caused by bacteria. It will not work for viral infections like the common cold or flu.

Missed dose: The medication should be taken exactly as directed to prevent antibiotic resistance.

Key warnings

·Allergic reactions to penicillin or other beta-lactam drugs may occur.
·Serious brain-related issues (neurotoxicity) like seizures or confusion may occur, especially in people with kidney problems.
·Severe diarrhea (C. difficile) can occur and may be life-threatening.
·Using this drug when not needed can lead to drug-resistant bacteria.

Do not use if

·Do not use if you have had an immediate allergic reaction to cefepime, other cephalosporins, or penicillin-type drugs.

Side effects

Common

RashDiarrheaNauseaVomitingHeadacheLocal reaction at the injection site

Serious

·Severe allergic reactions
·Confusion or hallucinations (encephalopathy)
·Seizures
·Severe diarrhea (C. difficile-associated)
·Changes in kidney function

Seek help if

·Confusion or hallucinations
·Seizures
·Severe watery or bloody diarrhea
·Signs of an allergic reaction (hives, swelling, trouble breathing)

Interactions

·Aminoglycosides: May increase the risk of kidney or ear damage.
·Diuretics (like furosemide): May increase the risk of kidney damage.
·Certain glucose tests: Cefepime may cause a false-positive result for sugar in urine tests.

Special populations

PregnancyAnimal studies showed no major birth defects, but there are no human studies specifically tracking pregnancy outcomes with cefepime. All pregnancies carry some background risk of birth defects.

BreastfeedingCefepime is found in very low amounts in breast milk. The benefits of breastfeeding should be weighed against potential risks to the baby.

PediatricCefepime is used in children from 2 months to 16 years old for specific infections like pneumonia and urinary tract infections.

GeriatricCefepime is generally safe for elderly patients, but because kidney function often decreases with age, doctors must monitor them closely and adjust doses to avoid toxicity.

Talk to your doctor

Monitor

·Signs of allergic reaction
·Changes in mental status or confusion
·Frequency and consistency of bowel movements
·Kidney function markers

Questions to ask

·Do I have any kidney issues that might require a dose change?
·Am I at risk for an allergic reaction based on my penicillin history?
·How will my kidney function be monitored during treatment?

Pharmacokinetics

Half-lifeAverage of 2 hours in healthy adults

BioavailabilityCompletely absorbed following intramuscular administration

Protein bindingApproximately 20%

MetabolismMetabolized to N-methylpyrrolidine (NMP) and N-oxide (NMP-N-oxide)

ExcretionPrincipally via renal excretion (approximately 85% of dose recovered unchanged in urine)

Practical

OverdoseIf an overdose occurs, seek medical help immediately. Symptoms can include confusion, seizures, or muscle twitching. Hemodialysis may be used to help remove the drug from the body.

Ingredients

Inactive

L-arginine

Educational summary derived from FDA labeling, AI-assisted. Not medical advice — consult a healthcare professional. Updated 2026-04-26.