Compare Omnicef vs. Cedax

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Omnicef (cefdinir)

Prescription only

Cedax (ceftibuten)

Prescription only
Treats bacterial infections.

Omnicef (cefdinir) is good for treating many common bacterial infections.

Treats bacterial infections.

Cedax (ceftibuten) is good for treating many bacterial infections, but be sure to finish the full course of treatment.

Upsides
  • Available as a generic, so it shouldn't be too expensive.
  • It is good at killing the most common bacteria.
  • Available in both pill and liquid forms.
  • Used to treat many types of bacterial infections.
  • Available as a pill or liquid suspension.
  • People usually have few side effects when taking it.
  • Cedax (ceftibuten) is available as a generic.
Downsides
  • Antacids and iron prevent Omnicef (cefdinir) from getting absorbed, so you'll need to separate any supplements from Omnicef (cefdinir) by at least 2 hours.
  • If you're taking iron with Omnicef (cefdinir), it can turn your stool red, which is normal but can be alarming.
  • Can cause diarrhea, nausea, vomiting, or headache.
  • The suspension has some sugar in it, which could raise your blood sugar. Talk to your doctor if you have diabetes.
  • Cedax (ceftibuten) can cause diarrhea, nausea, vomiting, and headache.
  • If you're on blood thinners, let your doctor know. Cedax (ceftibuten) can interact with your medicines and make you more likely to bleed.
  • If you're taking the liquid suspension and you have diabetes, you will need to watch your blood sugar closely. You must take it 2 hours before or 1 hour after a meal.
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Used for
Dosage forms
  • Pill
  • Liquid
  • Pill
  • Liquid
Price
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Reviews
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Side effects
4possible side effects
  • Diarrhea
    15%
  • Vaginal yeast infection
    4%
  • Nausea
    3%
  • Headache
    2%
See more detailed side effects
9possible side effects
  • Nausea
    4%
  • Abnormal changes in kidney function
    4%
  • Diarrhea
    4%
  • Headache
    3%
  • Abrnormal changes in laboratory blood test
    3%
  • Upset stomach
    2%
  • Vomiting
    2%
  • Abdominal pain
    2%
  • Loose stools
    2%
See more detailed side effects
Risks and risk factors
  • Diarrhea
    • Taking Omnicef (cefdinir) for a long time
  • Allergic reaction
    • History of penicillin allergy
  • Drug interactions
    • Taking antacids or iron supplements
See more detailed risks and warnings
  • Kidney problems
    • Kidney problems
    • Kidney disease
    • Hemodialysis
  • Allergic reaction
    • History of penicillin allergy
    • History of cephalosporin allergy
  • New infection
    • Taking Cedax (ceftibuten) for a long time
  • Diarrhea
See more detailed risks and warnings