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Two medicines, side by side

Cefdinir vs doxycycline

Cefdinir and doxycycline are both labeled for bacterial infections. Drugs@FDA records approvals of cefdinir since 1997 and of doxycycline since 1967. Pharmacies paid $0.458 per cefdinir 300 mg capsule and $0.118 per doxycycline hyclate 100 mg tablet (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. Doxycycline's other strengths are brand-only: $18.18 per Doryx mpc DR 60 mg tablet. In FDA's classes, cefdinir is a cephalosporin antibacterial and doxycycline a tetracycline-class drug.

Check it at the source: the cefdinir FDA label on DailyMed (effective October 14, 2025); the doxycycline FDA label on DailyMed (effective July 25, 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 doxycycline record

Doxycycline (Vibramycin) · label of July 25, 2025

Used for

From the label: indications

To reduce the development of drug-resistant bacteria and maintain effectiveness of doxycycline capsules and other antibacterial drugs, doxycycline 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 5, 1967
Generic labelers
83 labelers
Pharmacy cost
$0.118 per tablet

Supply and safety

Shortage
A presentation being discontinued
Recalls
19

Source: FDA drug labels via openFDA (Cefdinir label of October 14, 2025, Doxycycline label of July 25, 2025); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do cefdinir and doxycycline differ on the record?

In FDA's classes, cefdinir is a cephalosporin antibacterial and doxycycline a tetracycline-class drug.

Generics: cefdinir since 2006; doxycycline since 1973 (Drugs@FDA).

CefdinirDoxycycline
Labeled forBacterial infectionsUrinary tract infections, Bacterial infections, Acne
Pharmacologic classCephalosporin AntibacterialTetracycline-class Drug
How it works (label)n/an/a
Half-life (label)n/a1.62 0.95 0.37 0.15 (μg/mL) Average Observed Values Maximum Concentration 3.61 μg/mL (± 0.9 sd) Time of Maximum Concentration 2.60 hr (± 1.10 sd) Elimination Rate Constant 0.049 per hr (± 0.030 sd) Half-Life 16.33 hr (± …
Earliest approval on file (Drugs@FDA)December 4, 1997December 5, 1967
First generic approvedMay 19, 2006June 18, 1973
Generic labelers (NDC)26 labelers83 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.458 per capsule (Cefdinir 300 mg capsule)$0.118 per tablet (Doxycycline hyclate 100 mg tablet)
12-month price change+0.7%-2%
Boxed warningNoNo
Shortage nowNo current entryA presentation being discontinued
Recalls recorded1119
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)7,62869,571
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
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