Generic Name: Cefdinir Suspension (SEF di nir)
Brand Name: Omnicef
Medically reviewed on Sep 5, 2018
The Omnicef brand name has been discontinued in the U.S. If generic versions of this product have been approved by the FDA, there may be generic equivalents available.
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), do not use Clinitest®. Use some other urine glucose testing like Clinistix® or Tes-Tape®.
- 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 are 65 or older, use Omnicef (cefdinir suspension) with care. You could have more side effects.
- If you take Omnicef (cefdinir suspension) with an iron product, your stools may turn a reddish color. This is normal.
- If you have high blood sugar (diabetes), you will need to watch your blood sugar closely.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using Omnicef (cefdinir suspension) while you are pregnant.
- Tell your doctor if you are breast-feeding. You will need to talk about any risks to your 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.
- To gain the most benefit, do not miss doses.
- Keep taking Omnicef (cefdinir suspension) as you have been told by your doctor or other health care provider, even if you feel well.
- Take Omnicef (cefdinir suspension) at the same time of day.
- Take with or without food. Take with food if it causes an upset stomach.
- Do not take dairy products, antacids, didanosine, sucralfate, multivitamins, or other products that contain calcium, magnesium, aluminum, iron, or zinc 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.
- Any unexplained bruising or bleeding.
- Not able to pass urine or change in how much urine is passed.
- Fever or chills.
- Sore throat.
- Feeling very tired or weak.
- Vaginal itching or discharge.
- It is common to have diarrhea when taking Omnicef (cefdinir suspension). Rarely, a very bad form of diarrhea called Clostridium difficile (C diff)–associated diarrhea (CDAD) may occur. Sometimes, this has led to a deadly bowel problem (colitis). CDAD may happen while you are taking Omnicef (cefdinir suspension) or within a few months after you stop taking it. Call your doctor right away if you have stomach pain or cramps, very loose or watery stools, or bloody stools. Do not try to treat loose stools without first checking with your doctor.
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:
- Loose stools (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.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about Omnicef (cefdinir)
- Omnicef Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Drug Images
- Drug Interactions
- Support Group
- En Español
- 47 Reviews
- Generic Availability
- Drug class: third generation cephalosporins
Other brands: Omnicef Omni-Pac