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Two medicines, side by side

Cefuroxime vs metronidazole

Cefuroxime and metronidazole are both labeled for bacterial infections. Drugs@FDA records approvals of cefuroxime since 1983 and of metronidazole since 1963. Pharmacies paid $0.280 per cefuroxime axetil 250 mg tablet and $0.102 per metronidazole 250 mg tablet (NADAC, October 7, 2026). Metronidazole's other strengths are brand-only: $2.60 per mL (Likmez 500 mg/5 mL suspension). In FDA's classes, cefuroxime is a cephalosporin antibacterial and metronidazole a nitroimidazole antimicrobial.

Check it at the source: the cefuroxime FDA label on DailyMed (effective April 29, 2024); the metronidazole FDA label on DailyMed (effective September 3, 2024).

Highlights of the cefuroxime record

Cefuroxime (Zinacef) · label of April 29, 2024

Used for

From the label: indications

Cefuroxime axetil tablets are a cephalosporin antibacterial drug indicated for the treatment of the following infections due to susceptible bacteria: ( 1 ) Pharyngitis/tonsillitis (adults and pediatric patients) ( 1.1 ) Acute bacterial otitis media (pediatric patients) ( 1.2 ) Acute bacterial maxillary sinusitis (adults and pediatric patients) ( 1.3 ) Acute bacterial exacerbations of chronic bronchitis (adults and […]

On the market

Earliest approval on file
October 19, 1983
Generic labelers
19 labelers
Pharmacy cost
$0.280 per tablet

Supply and safety

Shortage
No current entry
Recalls
1

Highlights of the metronidazole record

Metronidazole (Flagyl) · label of September 3, 2024

Boxed warning

Metronidazole has been shown to be carcinogenic in mice and rats (see PRECAUTIONS ). Unnecessary use of the drug should be avoided. Its use should be reserved for the conditions described in the INDICATIONS AND USAGE section below.

Used for

From the label: indications

Symptomatic Trichomoniasis. Metronidazole tablets are indicated for the treatment of T. vaginalis infection in females and males when the presence of the trichomonad has been confirmed by appropriate laboratory procedures (wet smears and/or cultures). Asymptomatic Trichomoniasis. […]

On the market

Earliest approval on file
July 18, 1963
Generic labelers
55 labelers
Pharmacy cost
$0.102 per tablet

Supply and safety

Shortage
In shortage
Recalls
7

Source: FDA drug labels via openFDA (Cefuroxime label of April 29, 2024, Metronidazole label of September 3, 2024); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do cefuroxime and metronidazole differ on the record?

In FDA's classes, cefuroxime is a cephalosporin antibacterial and metronidazole a nitroimidazole antimicrobial.

Only the metronidazole label carries a boxed warning.

Generics: cefuroxime since 1986; metronidazole since 1984 (Drugs@FDA).

CefuroximeMetronidazole
Labeled forBacterial infections, Urinary tract infectionsBacterial infections
Pharmacologic classCephalosporin AntibacterialNitroimidazole Antimicrobial
How it works (label)Cefuroxime axetil is an antibacterial drug [see Microbiology (12.4) ].n/a
Half-life (label)n/aThe elimination half-life, measured during the first 3 days of life, was inversely related to gestational age.
Earliest approval on file (Drugs@FDA)October 19, 1983July 18, 1963
First generic approvedJanuary 10, 1986December 6, 1984
Generic labelers (NDC)19 labelers55 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.280 per tablet (Cefuroxime axetil 250 mg tablet)$0.102 per tablet (Metronidazole 250 mg tablet)
12-month price change-3%+10%
Boxed warningNoYes
Shortage nowNo current entryIn shortage
Recalls recorded17
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)15,67063,553
DEA schedulenonenone

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

What next?

Alternatives to cefuroxime
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