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Cefzil Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Cefzil (cefprozil) is a cephalosporin antibiotic used to treat many different types of infections caused by bacteria. Cefzil is available in generic form. Common side effects of Cefzil include:
- stomach pain,
- stiff or tight muscles,
- unusual or unpleasant taste in your mouth,
- itching or skin rash,
- vaginal itching or discharge, or
- diaper rash in an infant taking liquid cefprozil.
Tell your doctor if you have unlikely but serious side effects of Cefzil including:
- unusual tiredness or
The recommended adult dose of Cefzil is 250-500 mg twice daily for 10 days. Pediatric dose is determined by the child's weight. Cefzil may interact with probenecid, antibiotics, or diuretics (water pills). Tell your doctor all medications you are taking. Cefzil should be used only when prescribed during pregnancy. This medication passes into breast milk. Consult your doctor before breastfeeding.
Our Cefzil (cefprozil) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
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.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Cefzil in Detail - Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have any of these serious side effects:
- diarrhea that is watery or bloody;
- fever, chills, body aches, flu symptoms;
- unusual bleeding;
- seizure (convulsions);
- pale or yellowed skin, dark colored urine, fever, confusion or weakness;
- jaundice (yellowing of the skin or eyes);
- fever, sore throat, and headache with a severe blistering, peeling, and red skin rash;
- skin rash, bruising, severe tingling, numbness, pain, muscle weakness; or
- increased thirst, loss of appetite, swelling, weight gain, feeling short of breath, urinating less than usual or not at all.
Less serious side effects may include:
- nausea, vomiting, stomach pain, mild diarrhea;
- stiff or tight muscles;
- dizziness, feeling restless or hyperactive;
- unusual or unpleasant taste in your mouth;
- diaper rash in an infant taking liquid cefprozil;
- mild itching or skin rash; or
- vaginal itching or discharge.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
Read the entire detailed patient monograph for Cefzil (Cefprozil)
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Cefzil Overview - Patient Information: Side Effects
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor immediately if any of these unlikely but serious side effects occur: unusual tiredness/weakness.
Tell your doctor immediately if any of these rare but very serious side effects occur: yellowing of the eyes/skin, severe stomach/abdominal pain, persistent nausea/vomiting, dark urine, change in the amount of urine, signs of new infection (e.g., fever, persistent sore throat), easy bruising/bleeding, mental/mood changes (such as confusion).
This medication may rarely cause a severe intestinal condition (Clostridium difficile-associated diarrhea) due to a resistant bacteria. This condition may occur while receiving therapy or even weeks to months after treatment has stopped. Do not use anti-diarrhea products or narcotic pain medications if you have the following symptoms because these products may make them worse. Tell your doctor immediately if you develop: persistent diarrhea, abdominal or stomach pain/cramping, blood/mucus in your stool.
Use of this medication for prolonged or repeated periods may result in oral thrush or a new vaginal yeast infection (oral or vaginal fungal infection). Contact your doctor if you notice white patches in your mouth, a change in vaginal discharge or other new symptoms.
A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for Cefzil (Cefprozil)
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Cefzil FDA Prescribing Information: Side Effects
The adverse reactions to cefprozil are similar to those observed with other orally administered cephalosporins. Cefprozil was usually well tolerated in controlled clinical trials. Approximately 2% of patients discontinued cefprozil therapy due to adverse events.
The most common adverse effects observed in patients treated with cefprozil are:
Hepatobiliary: Elevations of AST (SGOT) (2%), ALT (SGPT) (2%), alkaline phosphatase (0.2%), and bilirubin values ( < 0.1%). As with some penicillins and some other cephalosporin antibiotics, cholestatic jaundice has been reported rarely.
Hypersensitivity: Rash (0.9%), urticaria (0.1%). Such reactions have been reported more frequently in children than in adults. Signs and symptoms usually occur a few days after initiation of therapy and subside within a few days after cessation of therapy.
The following adverse events, regardless of established causal relationship to CEFZIL (cefprozil) , have been rarely reported during postmarketing surveillance: anaphylaxis, angioedema, colitis (including pseudomembranous colitis), erythema multiforme, fever, serum-sickness like reactions, Stevens-Johnson syndrome, and thrombocytopenia.
Cephalosporin class paragraph
In addition to the adverse reactions listed above which have been observed in patients treated with cefprozil, the following adverse reactions and altered laboratory tests have been reported for cephalosporin-class antibiotics:
Aplastic anemia, hemolytic anemia, hemorrhage, renal dysfunction, toxic epidermal necrolysis, toxic nephropathy, prolonged prothrombin time, positive Coombs' test, elevated LDH, pancytopenia, neutropenia, agranulocytosis.
Several cephalosporins have been implicated in triggering seizures, particularly in patients with renal impairment, when the dosage was not reduced. (See DOSAGE AND ADMINISTRATION and OVERDOSAGE.) If seizures associated with drug therapy occur, the drug should be discontinued. Anticonvulsant therapy can be given if clinically indicated.
Read the entire FDA prescribing information for Cefzil (Cefprozil)
Additional Cefzil Information
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Cefzil User Reviews
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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