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Mefoxin Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Mefoxin (cefoxitin) is used to treat many kinds of bacterial infections, including severe or life-threatening forms. It is a cephalosporin antibiotic. The brand name Mefoxin is discontinued in the U.S. Generic forms may be available. Common side effects include swelling, redness, pain, or soreness at the injection site. It may also infrequently cause loss of appetite, nausea, vomiting, diarrhea, or headache.
The usual adult dosage range of cefoxitin is 1 gram to 2 grams every six to eight hours. Cefoxitin may interact with antibiotics. Other drugs may interact with cefoxitin. Tell your doctor all prescription and over-the-counter medications and supplements you use. Tell your doctor if you are pregnant before using cefoxitin. This medication passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breast-feeding.
Our Mefoxin (cefoxitin) 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.
Mefoxin 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, sore throat, and headache with a severe blistering, peeling, and red skin rash;
- swelling, pain, or irritation where the injection was given;
- skin rash, bruising, severe tingling, numbness, pain, muscle weakness;
- feeling light-headed, fainting;
- easy bruising or bleeding, unusual weakness;
- fever, chills, body aches, flu symptoms;
- urinating less than usual or not at all;
- seizure (black-out or convulsions); or
- jaundice (yellowing of the eyes or skin).
Less serious side effects are more likely to occur, such as:
- nausea, vomiting, stomach pain;
- mild skin rash; or
- vaginal itching or discharge.
Read the entire detailed patient monograph for Mefoxin (Cefoxitin)
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Mefoxin 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 right away if you have any serious side effects, including: dark urine, easy bruising/bleeding, fast/pounding/irregular heartbeat, seizures, unusual weakness, yellowing eyes/skin, mental/mood changes (such as confusion).
This medication may rarely cause a severe intestinal condition (Clostridium difficile-associated diarrhea) due to a type of resistant bacteria. This condition may occur during treatment or weeks to months after treatment has stopped. Do not use anti-diarrhea products or narcotic pain medications if you have any of the following symptoms because these products may make them worse. Tell your doctor right away 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. 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 rare. However, get medical help right away if you notice any of the following symptoms of a serious allergic reaction: 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 Mefoxin (Cefoxitin)
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Mefoxin FDA Prescribing Information: Side Effects
MEFOXIN is generally well tolerated. The most common adverse reactions have been local reactions following intravenous injection. Other adverse reactions have been encountered infrequently.
Thrombophlebitis has occurred with intravenous administration.
Rash (including exfoliative dermatitis and toxic epidermal necrolysis), urticaria, flushing, pruritus, eosinophilia, fever, dyspnea, and other allergic reactions including anaphylaxis, interstitial nephritis and angioedema have been noted.
Eosinophilia, leukopenia including granulocytopenia, neutropenia, anemia, including hemolytic anemia, thrombocytopenia, and bone marrow depression. A positive direct Coombs test may develop in some individuals, especially those with azotemia.
Elevations in serum creatinine and/or blood urea nitrogen levels have been observed. As with the cephalosporins, acute renal failure has been reported rarely. The role of MEFOXIN in changes in renal function tests is difficult to assess, since factors predisposing to prerenal azotemia or to impaired renal function usually have been present.
In addition to the adverse reactions listed above which have been observed in patients treated with MEFOXIN, the following adverse reactions and altered laboratory test results have been reported for cephalosporin class antibiotics:
Urticaria, erythema multiforme, Stevens-Johnson syndrome, serum sickness-like reactions, abdominal pain, colitis, renal dysfunction, toxic nephropathy, false-positive test for urinary glucose, hepatic dysfunction including cholestasis, elevated bilirubin, aplastic anemia, hemorrhage, prolonged prothrombin time, pancytopenia, agranulocytosis, superinfection, vaginitis including vaginal candidiasis.
Several cephalosporins have been implicated in triggering seizures, particularly in patients with renal impairment when the dosage was not reduced. (See DOSAGE AND ADMINISTRATION). 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 Mefoxin (Cefoxitin)
Additional Mefoxin Information
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