Omnicef

(cefdinir)

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Treats bacterial infections.

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Our bottom line

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

Quick facts about Omnicef
  • Drug class: Infection
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (cefdinir)
Prices and discounts
Lowest price for 20 300mg capsules
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$21.55
  • Price before coupon
    $103.26
  • Lowest price with coupon
    $21.55
    79% savings

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.

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What to expect from Omnicef, on one page

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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.

Get the newsletter!

Sign up and get Pill Talk, the latest in health & medicine news from Iodine

Get our free fact sheet

What to expect from Omnicef, on one page

Download Fact Sheet
Prices and discounts
Lowest price for 20 300mg capsules
Determining your location...
$21.55
  • Price before coupon
    $103.26
  • Lowest price with coupon
    $21.55
    79% savings
How it works

Omnicef (cefdinir) is an antibiotic. It kills bacteria by preventing them from making their own protective covering.

Quick facts about Omnicef
  • Drug class: Infection
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (cefdinir)

Used for

Dosage forms

  • Pill
  • Liquid
Tried Omnicef? Write a review!

What to expect when you take Omnicef (cefdinir) for Bacterial infection

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Side effect rates for Omnicef (cefdinir)

From 3841 clinical trials of Omnicef when taken for bacterial infections (600 mg/day)
  • Diarrhea
  • Vaginal yeast infection
  • Nausea
  • Headache

Risks and Warnings for Omnicef (cefdinir)

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    • Higher risk if:
    • Taking Omnicef (cefdinir) for a long time

    Like all antibiotics, Omnicef (cefdinir) can cause diarrhea, but it normally goes away after you finish the medicine. Taking yogurt or probiotic supplements a few hours after taking Omnicef (cefdinir) may help. Rarely, Omnicef (cefdinir) can cause a severe form of diarrhea. If you still have diarrhea after finishing Omnicef (cefdinir), or your diarrhea worsens or becomes bloody, talk to your doctor right away.

Common concerns from people taking Omnicef (cefdinir)

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