Skip to main content

Two medicines, side by side

Cefprozil vs amoxicillin

Cefprozil and amoxicillin are both labeled for bacterial infections. Drugs@FDA records approvals of cefprozil since 1991 and of amoxicillin since 1974. Pharmacies paid $0.925 per cefprozil 500 mg tablet and $0.0788 per amoxicillin 500 mg capsule (NADAC, October 7, 2026). In FDA's classes, cefprozil is a cephalosporin antibacterial and amoxicillin a penicillin-class antibacterial.

Check it at the source: the cefprozil FDA label on DailyMed (effective May 5, 2024); the amoxicillin FDA label on DailyMed (effective February 22, 2024).

Highlights of the cefprozil record

Cefprozil (Cefzil) · label of May 5, 2024

Used for

From the label: indications

To reduce the development of drug-resistant bacteria and maintain the effectiveness of cefprozil and other antibacterial drugs, cefprozil 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 23, 1991
Generic labelers
7 labelers
Pharmacy cost
$0.925 per tablet

Supply and safety

Shortage
No current entry
Recalls
1

Highlights of the amoxicillin record

Amoxicillin (Amoxil) · label of February 22, 2024

Used for

From the label: indications

Adults and Pediatric Patients • Upper Respiratory Tract Infections of the Ear, Nose, and Throat Amoxicillin is indicated in the treatment of infections due to susceptible (ONLY β-lactamase–negative) isolates of Streptococcus species. (α- and β-hemolytic isolates only), Streptococcus pneumoniae, Staphylococcus spp. , or Haemophilus influenzae. […]

On the market

Earliest approval on file
January 18, 1974
Generic labelers
38 labelers
Pharmacy cost
$0.0788 per capsule

Supply and safety

Shortage
No current entry
Recalls
12

Source: FDA drug labels via openFDA (Cefprozil label of May 5, 2024, Amoxicillin label of February 22, 2024); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do cefprozil and amoxicillin differ on the record?

In FDA's classes, cefprozil is a cephalosporin antibacterial and amoxicillin a penicillin-class antibacterial.

Half-life, in each label's words: Cefprozil, “The average plasma half-life in normal subjects was 1.3 hours, while the steady-state volume of distribution was …”; Amoxicillin, “Metabolism and Excretion The half-life of amoxicillin is 61.3 minutes.”

Generics: cefprozil since 2005; amoxicillin since 1974 (Drugs@FDA).

CefprozilAmoxicillin
Labeled forBacterial infectionsBacterial infections, Acid reflux and ulcers
Pharmacologic classCephalosporin AntibacterialPenicillin-class Antibacterial
How it works (label)n/aAmoxicillin is an antibacterial drug [see Microbiology ( 12.4 )].
Half-life (label)The average plasma half-life in normal subjects was 1.3 hours, while the steady-state volume of distribution was estimated to be 0.23 L/kg.Metabolism and Excretion The half-life of amoxicillin is 61.3 minutes.
Earliest approval on file (Drugs@FDA)December 23, 1991January 18, 1974
First generic approvedNovember 14, 2005December 9, 1974
Generic labelers (NDC)7 labelers38 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.925 per tablet (Cefprozil 500 mg tablet)$0.0788 per capsule (Amoxicillin 500 mg capsule)
12-month price change-11%-12%
Boxed warningNoNo
Shortage nowNo current entryNo current entry
Recalls recorded112
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)78075,926
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 cefprozil
every medicine labeled for the same conditions