[Durgical](https://durgical.com/en/) › [DurgiPedia](https://durgical.com/en/durgipedia/) › [Pharmacology](https://durgical.com/en/pharmacology/) › [Beta-lactams](https://durgical.com/en/pharmacology/classes/beta-lactams/) › Cefpodoxime

# Cefpodoxime

## Beta-lactams?

Beta-lactams

Oral third-generation cephalosporin, given as a prodrug (proxetil), for otitis, pharyngitis, sinusitis, mild pneumonia and lower urinary infection.

Updated Nov 1, 2026

Also called: cefpodoxime proxetil

## Quick facts

**Group**
[Beta-lactams](https://durgical.com/en/pharmacology/classes/beta-lactams/)

**Target**
Penicillin-binding proteins (bacterial transpeptidases)

**Used for**
Acute otitis media · Streptococcal pharyngitis

**Key effects**
Diarrhoea · Vaginal yeast infection · Abdominal pain

**Monitor**
Signs of allergy with the first doses

**ATC**
J01DD13

No doses: the clinician sets them by the current guideline.

On this page

- The basics Mechanism of action
- Indications
- Adverse effects
- Pharmacokinetics
- Memory aid

- Safety Contraindications
- Key interactions
- What is monitored
- Administration and safety
- Pregnancy and breastfeeding
- Nursing care

- Study Test yourself

- Connections Connections

## Mechanism of action

✂**Penicillin-binding proteins (bacterial transpeptidases)**Cefpodoxime

ⓘ No structure of cefpodoxime bound to a PBP is published; the figure shows cefotaxime, a third-generation cephalosporin with the same aminothiazole-methoxyimino side chain, acylating Streptococcus pneumoniae PBP1b.

**Target in 3D:** Penicillin-binding proteins (bacterial transpeptidases). PDB structure 2XD1 (RCSB PDB, public domain). [View the structure at RCSB PDB](https://www.rcsb.org/structure/2XD1) · Drag to rotate · pinch to zoom

Cefpodoxime proxetil is a prodrug: esterases in the gut wall remove the ester and release active cefpodoxime. It acylates the PBPs, blocks peptidoglycan cross-linking and is bactericidal. It covers penicillin-susceptible pneumococci and streptococci, H. influenzae, Moraxella catarrhalis, methicillin-susceptible S. aureus and some Enterobacterales.

- Absorbed as an ester (proxetil) in the gut
- Esterases release active cefpodoxime
- Acylates the PBPs and halts wall synthesis
- The bacterium lyses (bactericidal)

## Indications

- Acute otitis media [Acute otitis media →](https://durgical.com/en/conditions/acute-otitis-media/)
- Streptococcal pharyngitis and tonsillitis [Streptococcal pharyngitis →](https://durgical.com/en/conditions/streptococcal-pharyngitis/)
- Mild to moderate community-acquired pneumonia and flares of chronic bronchitis [Community-acquired pneumonia →](https://durgical.com/en/conditions/community-acquired-pneumonia/)
- Acute maxillary sinusitis [Acute rhinosinusitis →](https://durgical.com/en/conditions/acute-rhinosinusitis/)
- Uncomplicated cystitis [Urinary tract infection (acute cystitis) →](https://durgical.com/en/conditions/urinary-tract-infection/)
- Uncomplicated gonorrhoea (urethral, cervical, and anorectal in women) [Gonorrhoea →](https://durgical.com/en/conditions/gonorrhoea/)
- Uncomplicated skin and soft-tissue infections

## Adverse effects

### Common

- Diarrhoea (the most common) and nausea
- Vaginal yeast infection and vulvovaginitis
- Abdominal pain
- Headache

### Serious (rare, important)

- Severe allergic reactions, including anaphylaxis
- Clostridioides difficile diarrhoea, even more than two months later

## Contraindications

- Allergy to cefpodoxime or other cephalosporins

## Key interactions

**High-dose antacids and H2 blockers**
Reduce cefpodoxime absorption.

**Probenecid**
Reduces its renal excretion and raises its levels.

**Nephrotoxic drugs**
Kidney function is watched closely.

## What is monitored

- Signs of allergy with the first doses
- Diarrhoea during and after treatment
- Kidney function in kidney failure or with nephrotoxic drugs

## Administration and safety

- Tablets are given with food; the suspension with or without food
- Separate from antacids and H2 blockers
- The suspension is shaken and measured with an oral syringe

## Pregnancy and breastfeeding

Animal studies showed no harm, but there are no adequate studies in pregnant women; it is used only when clearly needed.

## Nursing care

- Ask about penicillin and cephalosporin allergy
- Teach to finish the course even when symptoms improve
- Ask the patient to report watery or bloody diarrhoea
- Urine glucose is checked with enzymatic strips, not copper-reduction tests

## Pharmacokinetics

**Absorption**
Oral; about half of the dose is absorbed. Tablets are absorbed better with food; antacids and H2 blockers reduce absorption.

**Elimination**
Renal, unchanged; prolonged in kidney failure.

**Half-life**
About 2 to 3 hours with normal kidney function.

## Memory aid

Think of a space «pod»: cefpodoxime travels packed as an ester and «opens» in the gut wall to come out active.

## Test yourself

Think of the answer, then tap the question to see it.

## Why is oral cefpodoxime called «proxetil»?

It is an ester prodrug; gut esterases hydrolyse it and release active cefpodoxime.

## Which commonly used drugs reduce cefpodoxime absorption?

High-dose antacids and H2 blockers, because the prodrug is absorbed less well with lower stomach acidity.

## Which generation is cefpodoxime, and which outpatient infections does it treat?

Oral third generation; it treats otitis media, pharyngitis, sinusitis, mild pneumonia, cystitis and uncomplicated skin infections.

[Add to my cards (3)](https://durgical.app/estudiar/?add=/en/pharmacology/cefpodoxime/)

[More Pharmacology questions →](https://durgical.com/en/practice/?f=pharmacology)

## Connections

## Related drugs 4

- [Cefixime](https://durgical.com/en/pharmacology/cefixime/)
- [Cefdinir](https://durgical.com/en/pharmacology/cefdinir/)
- [Cefuroxime](https://durgical.com/en/pharmacology/cefuroxime/)
- [Ceftriaxone](https://durgical.com/en/pharmacology/ceftriaxone/)

## Related conditions 6

- [Acute otitis media](https://durgical.com/en/conditions/acute-otitis-media/)
- [Streptococcal pharyngitis](https://durgical.com/en/conditions/streptococcal-pharyngitis/)
- [Community-acquired pneumonia](https://durgical.com/en/conditions/community-acquired-pneumonia/)
- [Acute rhinosinusitis](https://durgical.com/en/conditions/acute-rhinosinusitis/)
- [Urinary tract infection (acute cystitis)](https://durgical.com/en/conditions/urinary-tract-infection/)
- [Gonorrhoea](https://durgical.com/en/conditions/gonorrhoea/)

[← Back to the class: Beta-lactams](https://durgical.com/en/pharmacology/classes/beta-lactams/)

Educational content on how drugs work; not a prescribing guide and no substitute for a health professional's advice. No doses are given.

Sources: [DailyMed - CEFPODOXIME PROXETIL tablet, film coated](https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=9d6d7f50-9838-47e3-8214-53e2dbeeadea) (DailyMed (U.S. National Library of Medicine), 2026); [Cefpodoxime: MedlinePlus Drug Information](https://medlineplus.gov/druginfo/meds/a698024.html) (MedlinePlus (U.S. National Library of Medicine), 2026); [ACTIVE SITE RESTRUCTURING REGULATES LIGAND RECOGNITION IN CLASS A PENICILLIN-BINDING PROTEINS](https://www.rcsb.org/structure/2XD1) (RCSB Protein Data Bank, 2026).

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Representative model, for educational purposes only.

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Source: https://durgical.com/en/pharmacology/cefpodoxime/
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/pharmacology/cefpodoxime/