cefprozil (Cefzil)

What are the uses for cefprozil?

Cefprozil is effective against susceptible bacteria causing infections of:

What brand names are available for cefprozil?


Is cefprozil available as a generic drug?


Do I need a prescription for cefprozil?


What are the side effects of cefprozil?

Cefprozil is generally well tolerated. The most common side effects are:

Rare side effects include abnormal liver tests and allergic reactions. Like most antibiotics cefprozil may cause a condition called pseudomembranous colitis, a potentially serious bacterial infection of the colon. Persons with phenylketonuria should be advised that the suspension contains phenylalanine.


Bowel regularity means a bowel movement every day. See Answer

What is the dosage for cefprozil?

Cefprozil is taken once or twice daily, depending on the nature and severity of the infection. The recommended adult dose is 250-500 mg twice daily for 10 days. Pharyngitis and tonsillitis are treated with 500 mg once daily.

The maximum dose for ear infections and sinusitis in children 6 months to 12 year old is 30 mg /kg/day in 2 divided doses given every 12 hours (not to exceed 1000 mg/day).

ppharyngitisand tonsillitis, in children (2 -12 years old) are treated with 15 /kg/day in two divided doses every 12 hours while skin infections are treated with 20 mg/kg/day (not to exceed 1000 mg/day).

Which drugs or supplements interact with cefprozil?

Probenecid (Benemid) may increase the blood concentration of cefprozil by decreasing excretion of cefprozil by the kidney. This interaction is sometimes used to enhance the effect of cephalosporins.

Combining cefprozil with aminoglycosides (for example, tobramycin) produces additive bacterial killing effects but also may increase the risk of harmful effects to the kidney.

Exenatide (Byetta) may delay or reduce the absorption of cephalosporins. Cephalosporins should be administered one hour before exenatide.

CCefprozil may cause false test results with some tests for sugar in the urine.

Is cefprozil safe to take if I'm pregnant or breastfeeding?

There are no adequate studies of cefprozil in pregnant women. However, studies in animals suggest no important effects on the fetus.

Small amounts of cefprozil are secreted in breast milk, but the effect on the infant is unknown.

What else should I know about cefprozil?

What preparations of cefprozil are available?

Tablets: 250 and 500 mg; Powder for suspension: 125 and 250 mg/5 ml.

How should I keep cefprozil stored?

Tablets should be kept at room temperature, 15 C to 30 C (59 F to 86 F). The unmixed powder should be kept at room temperature, 15 to 25 C (59 to 77 F), refrigerated after mixing, and discarded after 14 days.


Cefprozil (Cefzil) is an antibiotic belonging to the cephalosporin family. Cefprozil (Cefzil) is prescribed for the treatment of bacterial infections of the throat, middle ear, tonsils, bronchi, the skin, soft tissues, and lungs. Side effects, warnings and precautions, drug interactions, and patient information should be reviewed prior to taking any medication.

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See more info: cefprozil on RxList
Medically reviewed by John P. Cunha, DO, FACOEP; Board Certified Emergency Medicine


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