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Prescription medicine

Cefaclor First approved as Ceclor

Cefaclor (Ceclor) is a prescription medicine with an FDA approval on record since 1979. FDA's NDC Directory lists it from 4 generic labelers, and pharmacies paid $0.932 per cefaclor 250 mg capsule in the October 7, 2026 NADAC survey.

  • Generic listed

Check it at the source: the cefaclor FDA label on DailyMed (effective November 1, 2022, Azorian Pharma, LLC); the NDA 50522 record on Drugs@FDA; every cefaclor label on DailyMed.

Highlights of the record

FDA label of November 1, 2022; NDC Directory, Drugs@FDA and Orange Book, October 8, 2026; NADAC October 7, 2026

Used for

From the label: indications and usage

Cefaclor is indicated in the treatment of the following infections when caused by susceptible strains of the designated microorganisms: Otitis media caused by Streptococcus pneumoniae, Haemophilus influenzae, staphylococci, and Streptococcus pyogenes Note: β-lactamase-negative, ampicillin-resistant (BLNAR) strains of Haemophilus influenzae should be considered resistant to cefaclor despite apparent in vitro susceptib

Forms and strengths

  • 250 mg
  • 500 mg
  • 250 mg/5ml

Capsule; film-coated extended-release tablet; suspension.

On the market

Earliest approval on file
April 4, 1979 Ceclor, Lilly; Drugs@FDA’s file, where older or withdrawn approvals can be missing
Generic approvals
30 first April 23, 1979; 3 with a marketed status in Drugs@FDA
Labelers listed (NDC)
4 of which 4 under generic applications, 0 under brand applications, repackagers included

Supply and safety

Pharmacy cost (NADAC)
$0.932 per capsule Cefaclor 250 mg capsule
Shortage (FDA)
No current entry
Recalls by its makers (FDA)
No recall recorded
FAERS reports
1,535 through July 30, 2026

What is cefaclor used for?

From the label: indications and usage

Cefaclor is indicated in the treatment of the following infections when caused by susceptible strains of the designated microorganisms: Otitis media caused by Streptococcus pneumoniae, Haemophilus influenzae, staphylococci, and Streptococcus pyogenes Note: β-lactamase-negative, ampicillin-resistant (BLNAR) strains of Haemophilus influenzae should be considered resistant to cefaclor despite apparent in vitro susceptibility of some BLNAR strains. […]

FDA pharmacologic class: Cephalosporin Antibacterial.

Source: FDA drug label (Cefaclor), Azorian Pharma, LLC, effective November 1, 2022 (SPL set 224af904-38f3-4210-a750-e21006db4c66), via openFDA; the full label on DailyMed

Is there a generic for cefaclor (Ceclor)?

The FDA approved the first generic cefaclor on April 23, 1979. 30 generic applications are approved; 3 of them carry a current (not discontinued) marketing status in Drugs@FDA; that status is not evidence that the generic is on sale.

FDA's NDC Directory lists cefaclor from 4 labelers under a generic (ANDA) application. A listing means the company has registered the product for sale; it does not show that every pharmacy stocks it.

  • 1979 earliest approval on file
  • 1979 first generic approved

Source: Drugs@FDA, FDA NDC Directory and the Orange Book (openFDA bulk files, October 8, 2026)

What do pharmacies pay for cefaclor (Ceclor)?

In CMS's NADAC survey of October 7, 2026, pharmacies paid $0.932 per Cefaclor 250 mg capsule, down 1% from $0.942 on October 8, 2025. The chart's scale runs from the lowest to the highest price shown, not from zero. NADAC is what retail pharmacies paid their wholesalers, per unit, in CMS's monthly survey; what a patient pays depends on insurance and the pharmacy.

  • Cefaclor 250 mg capsule (generic)
$1.32
$0.604
January 2024October 2026
NADAC per unit, October 7, 2026
Strength and formBrand or genericPharmacy cost30 tablets, or one pen or vial12-month change
Cefaclor 250 mg capsuleGeneric$0.932 per capsule$27.97-1%
Cefaclor 500 mg capsuleGeneric$1.10 per capsule$32.99-21%

Source: CMS National Average Drug Acquisition Cost (NADAC) survey, October 7, 2026: what retail pharmacies paid per unit; not a counter price

What does the cefaclor label say about other medicines?

The cefaclor label names 1 other medicine in its interaction, contraindication or warning sections. The labels of 6 other medicines name cefaclor. The sentences are the labels' own; a label lists what its studies and reports found, not every interaction.

Medicine namedSectionWhat the label says
EpinephrinewarningsSERIOUS ACUTE HYPER-SENSITIVITY REACTIONS MAY REQUIRE TREATMENT WITH EPINEPHRINE AND OTHER EMERGENCY MEASURES, INCLUDING OXYGEN, INTRAVENOUS FLUIDS, INTRAVENOUS ANTIHISTAMINES, CORTICOSTEROIDS, PRESSOR AMINES, AND AIRWAY MANAGEMENT, AS CLINICALLY INDICATED.

Other labels that name cefaclor

Check cefaclor against other medicines

Source: FDA drug label (Cefaclor), Azorian Pharma, LLC, effective November 1, 2022 (SPL set 224af904-38f3-4210-a750-e21006db4c66), via openFDA; the full label on DailyMed

What do FAERS reports show for cefaclor?

The FDA Adverse Event Reporting System holds 1,535 reports that list cefaclor among the medicines taken, through July 30, 2026, each a report of something that happened, not proof the medicine caused it; 148 are coded as a death and 695 as a hospital stay. Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is.

Reports received each year

The most reported reactions

  • Drug Hypersensitivity252
  • Nausea (named in the label)159
  • Vomiting (named in the label)159
  • Fatigue137
  • Pyrexia121
  • Dizziness (named in the label)111
  • Infection (a use or a product term, not a reaction)106
  • Diarrhoea (named in the label)103

Side effects: the label's list and every FAERS reaction

Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026

What next?

Other cephalosporins
the pharmacologic class, with prices and generics
Cefaclor side effects
the label's list beside FAERS reports
Check an interaction
what two or more labels say about each other