Skip to Content

Cefzil

Generic Name: cefprozil (sef PROE zil)
Brand Name: Cefzil

Medically reviewed on January 22, 2018.

What is cefprozil?

Cefprozil is a cephalosporin (SEF a low spor in) antibiotic. It works by fighting bacteria in your body.

Cefprozil is used to treat many different types of infections caused by bacteria.

Cefprozil may also be used for purposes not listed in this medication guide.

Important Information

You should not use cefprozil if you are allergic to any cephalosporin antibiotic (cefdinir, cefprozil, cefuroxime, cephalexin, and others).

Before taking this medicine

You should not use this medicine if you are allergic to cefprozil or to other cephalosporin antibiotics, such as:

To make sure cefprozil is safe for you, tell your doctor if you have:

  • kidney disease;

  • a history of intestinal problems, such as colitis; or

  • if you are allergic to penicillin or other medicines.

FDA pregnancy category B. This medicine is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

Cefprozil can pass into breast milk and may harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

The cefprozil suspension (liquid) may contain phenylalanine. Talk to your doctor before using this form of cefprozil if you have phenylketonuria (PKU).

How should I take cefprozil?

Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.

Shake the oral suspension (liquid) well just before you measure a dose. Measure liquid medicine with the dosing syringe provided, or with a special dose-measuring spoon or medicine cup. If you do not have a dose-measuring device, ask your pharmacist for one.

Do not share this medicine with another person, even if they have the same symptoms you have.

This medicine can cause unusual results with certain lab tests for glucose (sugar) in the urine. Tell any doctor who treats you that you are using cefprozil.

Use cefprozil for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Skipping doses may also increase your risk of further infection that is resistant to antibiotics. Cefprozil will not treat a viral infection such as the common cold or flu.

Store cefprozil tablets at room temperature away from moisture, heat, and light.

Store cefprozil oral liquid in the refrigerator. Do not allow it to freeze. Throw away any unused medication that is older than 14 days.

What happens if I miss a dose?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking cefprozil?

Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or bloody, stop taking cefprozil and call your doctor. Do not use anti-diarrhea medicine unless your doctor tells you to.

Cefprozil side effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

  • diarrhea that is watery or bloody;

  • sudden weakness or ill feeling, cold or flu symptoms, mouth sores, red or swollen gums, pain when swallowing;

  • pale or yellowed skin, dark colored urine, confusion or weakness;

  • unusual bleeding;

  • bruising, severe tingling, numbness, pain, muscle weakness;

  • seizure (convulsions); or

  • severe skin reaction--fever, sore throat, swelling in your face or tongue, burning in your eyes, skin pain, followed by a red or purple skin rash that spreads (especially in the face or upper body) and causes blistering and peeling.

Common side effects may include:

  • mild diarrhea;

  • nausea, vomiting, stomach pain; or

  • vaginal itching or discharge.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See also: Side effects (in more detail)

What other drugs will affect cefprozil?

Other drugs may interact with cefprozil, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.

Further information

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Hide