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Omnicef (Suspension)

Generic Name: Cefdinir Suspension (SEF di ner)
Brand Name: Omnicef

Medically reviewed by Drugs.com. Last updated on Jun 12, 2019.

Uses of Omnicef:

  • It is used to treat bacterial infections.

What do I need to tell my doctor BEFORE I take Omnicef?

  • If you have an allergy to cefdinir or any other part of Omnicef (cefdinir suspension).
  • If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.

This medicine may interact with other drugs or health problems.

Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Omnicef (cefdinir suspension) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

What are some things I need to know or do while I take Omnicef?

  • Tell all of your health care providers that you take Omnicef (cefdinir suspension). This includes your doctors, nurses, pharmacists, and dentists.
  • Do not use longer than you have been told. A second infection may happen.
  • If you have high blood sugar (diabetes) and test your urine glucose, talk with your doctor to find out which tests are best to use.
  • If you have high blood sugar (diabetes), talk with the doctor. Some of these products have sugar.
  • This medicine may affect certain lab tests. Tell all of your health care providers and lab workers that you take Omnicef (cefdinir suspension).
  • If you take Omnicef (cefdinir suspension) with an iron product, your stools may turn a reddish color. This is normal.
  • Tell your doctor if you are pregnant, plan on getting pregnant, or are breast-feeding. You will need to talk about the benefits and risks to you and the baby.

How is this medicine (Omnicef) best taken?

Use Omnicef (cefdinir suspension) as ordered by your doctor. Read all information given to you. Follow all instructions closely.

  • Keep taking Omnicef (cefdinir suspension) as you have been told by your doctor or other health care provider, even if you feel well.
  • Take with or without food. Take with food if it causes an upset stomach.
  • Do not take antacids that have aluminum or magnesium in them within 2 hours of Omnicef (cefdinir suspension).
  • Do not take iron products within 2 hours before or 2 hours after taking Omnicef (cefdinir suspension).
  • Shake well before use.
  • Measure liquid doses carefully. Use the measuring device that comes with Omnicef (cefdinir suspension). If there is none, ask the pharmacist for a device to measure Omnicef (cefdinir suspension).
  • You may give Omnicef (cefdinir suspension) with infant formula that has iron in it.

What do I do if I miss a dose?

  • Take a missed dose as soon as you think about it.
  • If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
  • Do not take 2 doses at the same time or extra doses.

What are some side effects that I need to call my doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

  • Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
  • Not able to pass urine or change in how much urine is passed.
  • Dark urine or yellow skin or eyes.
  • Seizures.
  • Fever, chills, or sore throat; any unexplained bruising or bleeding; or feeling very tired or weak.
  • Diarrhea is common with antibiotics. Rarely, a severe form called C diff–associated diarrhea (CDAD) may happen. Sometimes, this has led to a deadly bowel problem (colitis). CDAD may happen during or a few months after taking antibiotics. Call your doctor right away if you have stomach pain, cramps, or very loose, watery, or bloody stools. Check with your doctor before treating diarrhea.

What are some other side effects of Omnicef?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

  • Diarrhea.

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.

If OVERDOSE is suspected:

If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

How do I store and/or throw out Omnicef?

  • Store liquid (suspension) at room temperature. Throw away any part not used after 10 days.
  • Store in a dry place. Do not store in a bathroom.
  • Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
  • Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.

Consumer information use

  • If your symptoms or health problems do not get better or if they become worse, call your doctor.
  • Do not share your drugs with others and do not take anyone else's drugs.
  • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
  • Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
  • Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Omnicef (cefdinir suspension), please talk with your doctor, nurse, pharmacist, or other health care provider.
  • If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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