Omnicef (Cefdinir Suspension)

Name: Omnicef (Cefdinir Suspension)

Uses of Omnicef

  • It is used to treat bacterial infections.

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. 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 this medicine.
  • If you are 65 or older, use Omnicef with care. You could have more side effects.
  • If you take this medicine 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 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 this medicine 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 as you have been told by your doctor or other health care provider, even if you feel well.
  • Take this medicine 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.
  • Shake well before use.
  • Measure liquid doses carefully. Use the measuring device that comes with this medicine. If there is none, ask the pharmacist for a device to measure Omnicef.
  • You may give this medicine 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 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.
  • Seizures.
  • 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 this medicine 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.
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