Omnicef is the brand name for cefdinir, a drug that belongs in the cephalosporin antibiotic family, as indicated by Drugs.com. Omnicef is used to treat numerous bacterial infections. Drugs.com reports that it may also be used for other purposes. As with any medication, Omnicef has the potential for side effects.
Less Serious Side Effects
Some of the side effects of Omnicef are considered mild unless they become persistent or bothersome. Several of the less serious side effects listed by Drugs.com include constipation, appetite reduction, bloating, gas, stomach upset, restlessness, hyperactivity, dry mouth, abnormal taste in the mouth, mild itching, diaper rash in infants and vaginal itching or discharge. Website eMedtv.com reports less serious side effects like diarrhea in up to 15 percent of cases, yeast infection in up to 4 percent of women, nausea in up to 3 percent of users, headache in up to 2 percent of users, unexplained rash in up to 3 percent of individuals and/or vomiting and abdominal pain in up to 1 percent of patients.
Serious Side Effects
Serious side effects should be reported to a medical professional. Drugs.com lists several serious side effects including diarrhea that is watery or bloody, pain in the chest, flu-like symptoms (fever, chills, body aches), unexplained bleeding, convulsions, pale skin, yellowed skin, darkened urine, confusion, weakness, jaundice, fore throat, severe skin blistering, peeling of the skin, red rash, increased thirst, swelling of any part of the body, sudden weight gain, shortness of breath, reduced urination and/or not urinating at all. Other hazards as reported by eMedTV.com, may include heart failure, inflammation of the vagina, blurred vision, liver or kidney failure, serious intestinal infection and/or increased blood pressure.
Allergic Reaction
Some individuals may experience an allergic reaction to Omnicef. Side effects of this include hives, trouble breathing, swelling of the face, swelling of the lips, swelling of the tongue and/or swelling of the throat.
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