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Two medicines, side by side

Cefdinir vs azithromycin

Cefdinir and azithromycin are both labeled for bacterial infections. Drugs@FDA records approvals of cefdinir since 1997 and of azithromycin since 1991. Pharmacies paid $0.458 per cefdinir 300 mg capsule and $0.266 per azithromycin 250 mg tablet (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. Azithromycin's other strengths are brand-only: $98.51 per mL (Azasite 1% eye drops). In FDA's classes, cefdinir is a cephalosporin antibacterial and azithromycin a macrolide antimicrobial.

Check it at the source: the cefdinir FDA label on DailyMed (effective October 14, 2025); the azithromycin FDA label on DailyMed (effective December 4, 2025).

Highlights of the cefdinir record

Cefdinir (Omnicef) · label of October 14, 2025

Used for

From the label: indications

To reduce the development of drug-resistant bacteria and maintain the effectiveness of cefdinir capsules and other antibacterial drugs, cefdinir capsules should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. […]

On the market

Earliest approval on file
December 4, 1997
Generic labelers
26 labelers
Pharmacy cost
$0.458 per capsule

Supply and safety

Shortage
No current entry
Recalls
11

Highlights of the azithromycin record

Azithromycin (Zithromax) · label of December 4, 2025

Used for

From the label: indications

Azithromycin tablets are macrolide antibacterial drug indicated for the treatment of patients with mild to moderate infections caused by susceptible strains of the designated microorganisms in the specific conditions listed below. […]

On the market

Earliest approval on file
November 1, 1991
Generic labelers
55 labelers
Pharmacy cost
$0.266 per tablet

Supply and safety

Shortage
A presentation being discontinued
Recalls
11

Source: FDA drug labels via openFDA (Cefdinir label of October 14, 2025, Azithromycin label of December 4, 2025); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do cefdinir and azithromycin differ on the record?

In FDA's classes, cefdinir is a cephalosporin antibacterial and azithromycin a macrolide antimicrobial.

Generics: cefdinir since 2006; azithromycin since 2005 (Drugs@FDA).

CefdinirAzithromycin
Labeled forBacterial infectionsBacterial infections
Pharmacologic classCephalosporin AntibacterialMacrolide Antimicrobial
How it works (label)n/aAzithromycin is a macrolide antibacterial drug. [see Microbiology ( 12.4 )]
Half-life (label)n/aElimination Plasma concentrations of azithromycin following single 500 mg oral and IV doses declined in a polyphasic pattern resulting in a mean apparent plasma clearance of 630 mL/min and terminal elimination half-life …
Earliest approval on file (Drugs@FDA)December 4, 1997November 1, 1991
First generic approvedMay 19, 2006November 14, 2005
Generic labelers (NDC)26 labelers55 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.458 per capsule (Cefdinir 300 mg capsule)$0.266 per tablet (Azithromycin 250 mg tablet)
12-month price change+0.7%-26%
Boxed warningNoNo
Shortage nowNo current entryA presentation being discontinued
Recalls recorded1111
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)7,62859,712
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 cefdinir
every medicine labeled for the same conditions