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Last updated on November 21st, 2021

Generic name: Cefdinir, Omnicef Omni-Pac

Brand names: Omnicef

General Information

Omnicef is a popular remedy which belongs to a broad-spectrum antibiotic. It reduces a wide variety of bacterial infections such as ear infections, bronchitis, tonsillitis, skin infections, pneumonia, and sinus infections.

Note: it will not work for colds, flu or viral infections.

Avoid antacids, aluminum, calcium, iron, magnesium, and zinc supplements for 4 hours before and 8 hours after taking a dose of this drug.

Omnicef may make you dizzy or impair your coordination.

Contact your physician if you need to learn more information about this drug.

Don’t stop treatment with Omnicef earlier than it was prescribed by your doctor even if you notice improvements of your condition. Stopping the medication too early may worsen your condition. Be careful about doing dangerous tasks, driving, operating machinery or climbing until you are aware how this drug affects you. Don’t drink alcohol. Always contact a medic before giving Omnicef to a child.


What symptoms or conditions should I report to a doctor before I take this medicine?

It is important to report to a doctor if you have or had the following conditions:

  •     heart disorders (such as heart rhythm problems)
  •     liver or kidney disease
  •     allergy to cefdinir, or to similar medicines, dyes, foods, or preservatives
  •     intestinal problems (colitis)
  •     epilepsy or fits
  •     enzyme disorder
  •     diabetes
  •     pregnancy, breastfeeding or planning to become pregnant

How do I take this medicine?

Note: This remedy was prescribed to you only. Do not share this medicament with others.

This medication is available in the form of suspension or capsule to take orally.

It is usually taken one or two times per day, at regular intervals. Omnicef is taken with some water. It is important to drink several glasses of water each day while you are taking Omnicef to protect your kidneys. You may take it either with or without food. In order to understate stomach irritation and help your body absorb the drug is desirable to combine with meals.

The capsules should be swallowed whole. Do not open, crush, chew or break them. Shake the liquid well before measuring a dose to mix the medicament evenly. Use a specially marked measuring spoon or medicine cup to be sure of the correct dose.

Do not take this dosage unless your medical practitioner specifically instructs you to do so.

What should I do if I miss the dose?

If you miss the dose, try to take it as soon as you have the opportunity. If it is time for your next dose, take only one dose. You don’t have to double the dose.

What should you do if you overdose with Omnicef?

Taking any medicine in excess you can have serious consequences for your health. If you feel an overdose, report to your physician straightway.

In large doses, Omnicef may may cause diarrhea, convulsions, nausea, and vomiting or stomach pain.


What drug(s) may interact with Omnicef?

  •     antacids
  •     iron supplements
  •     probenecid
  •     antacids containing aluminum or magnesium
  •     iron supplements (including multivitamins)

This list of interactions may be not complete. Provide your medical practitioners entire list of medicines, herbs, dietary supplements or non-prescription drugs you take. Moreover tell them whether you drink alcohol, use illegal drugs or smoke. Particular items may interact with your drug.

Which side effects can I perceive from this remedy?

  •     Allergic reaction (hives; swelling of your throat, lips, face or tongue; skin rash or swelling; difficulty breathing; itching)
  •     Problems with breathing
  •     Fever, chills
  •     Nausea, vomiting
  •     Numbness, tingling in your hands or feet (tremor), muscle stiffness, or spasms
  •     Difficulty urinating (urinary retention), dark urine, diarrhea or loose stools
  •     Headache, dizziness, ringing in your ears or hearing loss
  •     Indigestion, or upset stomach, bloating, stomach gas, pain or cramps
  •     Redness, blistering, peeling or loosening of the skin, including inside the mouth, pale skin
  •     Fast/pounding/irregular heartbeat (palpitations)
  •     Fatigue, faintness
  •     Liver problems, yellowing eyes, skin
  •     Unusual bleeding or bruising
  •     Trouble sleeping

If these side effects persist or worsen, contact your medical practitioner straightway. Remember, this list of side effects is not complete, others may occur. If you notice any side effect, call your doctor or pharmacist.

How should Omnicef be stored?

Omnicef should be stored at room temperature, between 15 and 30 degrees C (59 and 86 degrees F), in a tightly closed container. Protect from moisture, direct heat, and light. Do not store in the bathroom or near a sink. Keep Omnicef out of the reach of children and away from animals.

Warning: Before taking the drug you need to consult your doctor.

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