Cefpodoxime

Prescription ·Exploratory record · not publication-reviewed ·Updated July 13, 2026

Cefpodoxime is an oral third-generation cephalosporin antibiotic administered as the prodrug cefpodoxime proxetil, which is hydrolyzed to active cefpodoxime during intestinal absorption. It is used for community-acquired respiratory tract infections, acute otitis media, pharyngitis, uncomplicated skin infections, and uncomplicated urinary tract infections. Like other third-generation agents it offers extended Gram-negative coverage and stability against many beta-lactamases compared with earlier cephalosporins.

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Publication status

Exploratory record, not a reviewed medical publication.

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This generated database record has not completed a claim-level review by a qualified human medical reviewer. Bibliography links and evidence labels are not approval. The page remains available for reference and is excluded from search indexing.

In short

What the research says.

A quick, data-only summary. The full evidence, dosing, and sources are below.

Cefpodoxime is an oral third-generation cephalosporin antibiotic administered as the prodrug cefpodoxime proxetil, which is hydrolyzed to active cefpodoxime during intestinal absorption. NutriStack rates the supporting evidence as strong. Common adult dosing is 100 to 400 mg orally every 12 hours depending on indication (commonly 100 mg twice daily for pharyngitis or uncomplicated UTI, 200 mg twice daily for respiratory infections; treatment duration typically 5 to 14 days). Dose adjustment is required in severe renal impairment., though a prescriber sets the actual dose. With long-term use it can deplete vitamin k. This profile indexes 3 sources.

What it's good for

Community-acquired pneumonia²
Acute bacterial exacerbation of chronic bronchitis^1,2
Acute maxillary sinusitis
Acute otitis media
Streptococcal pharyngitis and tonsillitis

What to watch for

Diarrhea
Nausea and vomiting
Abdominal pain
Known hypersensitivity to cefpodoxime or other cephalosporins^1,2
History of severe immediate (anaphylactic) reaction to penicillins or other beta-lactam antibiotics

The bottom line

Evidence rating strong. Most-documented uses: community-acquired pneumonia, acute bacterial exacerbation of chronic bronchitis, acute maxillary sinusitis. 3 sources indexed (1992–2010), with 0 interaction records on file.

The science

How it works, mechanistically.

Core mechanism

Cefpodoxime is a beta-lactam antibiotic that exerts bactericidal activity by binding to and inhibiting penicillin-binding proteins (PBPs), the transpeptidase and carboxypeptidase enzymes responsible for cross-linking peptidoglycan strands in the bacterial cell wall. Disruption of cell wall synthesis leaves the wall structurally weak, leading to autolysis and cell death, particularly in actively dividing organisms. Its beta-lactam ring and oximino side chain confer relative stability to many plasmid-mediated beta-lactamases, extending activity against Gram-negative pathogens, though it remains susceptible to extended-spectrum beta-lactamases (ESBLs) and is not active against Pseudomonas aeruginosa, enterococci, or methicillin-resistant staphylococci.^1,2

Class

Cephalosporin antibiotic (third-generation)

Absorption

Water-soluble; take with food

Dosing

Dosing & protocol.

Common range

100 to 400 mg orally every 12 hours depending on indication (commonly 100 mg twice daily for pharyngitis or uncomplicated UTI, 200 mg twice daily for respiratory infections; treatment duration typically 5 to 14 days). Dose adjustment is required in severe renal impairment.

Recommended form

Oral tablet (cefpodoxime proxetil); oral suspension is available for pediatric and difficulty-swallowing use

Tablet absorption is enhanced by food, so cefpodoxime proxetil tablets should be taken with a meal; the oral suspension is not affected by food. Absorption requires gastric acid, so antacids and H2-blockers reduce bioavailability and should be separated in time. The prodrug is de-esterified to active cefpodoxime during gastrointestinal absorption.

Depletions

What it depletes.

Nutrients this medication can lower over time, and what to replace.

Vitamin K

Mild

As a broad-spectrum oral antibiotic, cefpodoxime suppresses the colonic bacteria that synthesize menaquinones (vitamin K2), which can reduce the endogenous vitamin K supply. Unlike some cephalosporins (for example cefoperazone or cefamandole), cefpodoxime lacks the N-methylthiotetrazole (NMTT) side chain, so it does not directly inhibit vitamin K epoxide reductase; the effect is therefore limited to gut-flora disruption and is usually clinically minor except during prolonged therapy or in patients with poor dietary intake, malabsorption, or concurrent warfarin use.

Replace Vitamin K2 (menaquinone) or vitamin K1 (phylloquinone) if dietary intake is poor or therapy is prolongedMonitor Prothrombin time / INR (particularly in patients on warfarin or with bleeding risk)Onset Days to a few weeks with continued use; clinically relevant only with prolonged courses or in at-risk patients

Full Cefpodoxime depletion and interaction guide →

Safety

Full safety detail.

Side effects

Diarrhea
Nausea and vomiting
Abdominal pain
Vaginal candidiasis (yeast infection)
Headache
Rash
Clostridioides difficile-associated diarrhea and pseudomembranous colitis (can occur during or after treatment)
Hypersensitivity reactions including anaphylaxis (rare)
Transient elevations in liver enzymes

Contraindications

Known hypersensitivity to cefpodoxime or other cephalosporins^1,2
History of severe immediate (anaphylactic) reaction to penicillins or other beta-lactam antibiotics
Use with caution in patients with a history of gastrointestinal disease, particularly colitis

Sources

Sources, by evidence tier.

Numbered references. Citations throughout the page link here.

Reviews & position papers

1Cefpodoxime: a review of its antibacterial activity, pharmacokinetic properties and therapeutic potentialWiseman LR, Benfield P · Drugs · 1993
Cefpodoxime exerts bactericidal activity by binding penicillin-binding proteins and is stable to many beta-lactamases, conferring extended Gram-negative activity typical of third-generation cephalosporins.
2Cefpodoxime proxetil. A review of its use in the management of bacterial infections in paediatric patientsFrampton JE, Brogden RN, Langtry HD, Buckley MM · Drugs · 1992
Cefpodoxime proxetil provides broad Gram-positive and Gram-negative coverage with twice-daily dosing and is effective across common community-acquired respiratory and urinary infections.

Reference material

3Vantin (cefpodoxime proxetil) FDA prescribing informationPharmacia and Upjohn / FDA · FDA Label · 2010
Cefpodoxime proxetil tablet absorption is enhanced in the presence of food; antacids and H2-receptor antagonists reduce peak plasma concentrations and extent of absorption.

FAQ

Common questions.

Quick answers about Cefpodoxime, drawn from the data on this page.

What is Cefpodoxime?

What is Cefpodoxime used for?

Commonly cited benefits of Cefpodoxime include: Community-acquired pneumonia; Acute bacterial exacerbation of chronic bronchitis; Acute maxillary sinusitis; Acute otitis media; Streptococcal pharyngitis and tonsillitis. NutriStack rates the overall evidence as strong.

What is a typical dose of Cefpodoxime?

A typical adult dose of Cefpodoxime is 100 to 400 mg orally every 12 hours depending on indication (commonly 100 mg twice daily for pharyngitis or uncomplicated UTI, 200 mg twice daily for respiratory infections; treatment duration typically 5 to 14 days). Dose adjustment is required in severe renal impairment.. The commonly recommended form is Oral tablet (cefpodoxime proxetil); oral suspension is available for pediatric and difficulty-swallowing use. These are general ranges, not personalized advice; confirm the right dose with a clinician.

What are the side effects of Cefpodoxime?

Reported side effects include diarrhea, nausea and vomiting, abdominal pain, vaginal candidiasis (yeast infection), headache, rash. This is educational information; check with a healthcare professional before use.

How strong is the evidence for Cefpodoxime?

NutriStack rates this as Strong, meaning multiple high-quality meta-analyses or systematic reviews converge on the same finding. Full tier criteria are at https://nutristackapp.com/methodology/evidence-tiers.

Use this with your stack

Cefpodoxime in NutriStack.

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