Omnicef - Dosage | Use | Side Effects
This article was medically reviewed by M.Pharm, Marko Tanaskovic on August 12, 2018. To read more about an author, click here.
Omnicef (Cefdinir) belongs to the cephalosporin group of antibiotics. Omnicef (Cefdinir) is used to treat infections caused by bacteria susceptible to Omnicef, as follows:
- Otitis media (ear infection)
- Tonzilitis, pharyngitis (throat infection)
- Lower respiratory tract infections (bronchitis and pneumonia)
- Skin or soft tissue infection
Warnings and precautions
Do not take Omnicef:
- If you are allergic (hypersensitive) to Omnicef, or other cephalosporin antibiotics such as:
- cefaclor (Raniclor),
- cefadroxil (Duricef),
- cefazolin (Ancef),
- cefditoren (Spectracef),
- cefpodoxime (Vantin),
- cefprozil (Cefzil),
- cefuroxime (Ceftin),
- cephalexin (Keflex),
- cephradine (Velosef),
Signs of an allergic reaction include:
- difficulty in swallowing or breathing,
- swelling of the lips, face, throat or tongue.
Caution should be exercised in the following situations:
- If you are allergic to penicillin or other antibiotics
- If you have ever had gastrointestinal disease, particularly inflammatory bowel disease (colitis)
- If you have any kidney problems
- If you are pregnant
If you are not sure whether recited above applies to you, consult your doctor or pharmacist before taking this medicine.
Use with other medicine (Interactions)
Tell your doctor about any medications you are taking or you have recently taken, including medicines obtained without a prescription and herbal medicines.
Omnicef may affect the effectiveness of other medicines. While using Omnicef you should not take antacids (medicines that neutralize stomach acid, such as: magnesium hydroxide, aluminium hydroxide etc.).
You should also avoid use of rifampin or rifabutin (drugs used to treat tuberculosis). Omnicef may affect oral contraceptives, so you should use another contraceptive methods.
Use with foods
Omnicef can be taken with or without food.
Omnicef use during pregnancy
Omnicef should be administered during pregnancy only if the benefit of the treatment outweighs the potential risks. Consult your doctor or pharmacist before you start using any medicine during pregnancy.
Dosage and administration
|Type of infection||Dosage (for adults)|
|Pneumonia||300 mg every 12 hours for 10-14 days|
|Bronchitis||300 mg every 12 hours for 5-10 days or 600 mg every 24 hours for 10 days|
|Tonsillitis and pharyngitis||300 mg every 12 hours for for 5-10 days or 600 mg every 24 hours for 10 days|
|Sinusitis||300 mg every 12 hours or 600 mg every 24 hours for 10 days|
|Skin or soft tissue infection||300 mg every 12 hours for 10 days|
|Type of infection||Dosage|
|Pneumonia||13 years or older: 300 mg orally every 12 hours for 10 to 14 days|
|Bronchitis||13 years or older: 300 mg orally every 12 hours for 5 to 10 days or 600 mg orally every 24 hours for 10 days|
|Tonsillitis and pharyngitis||7 mg/kg orally every 12 hours for 5 to 10 days or 14 mg/kg orally every 24 hours for 10 days|
|Sinusitis||7 mg/kg orally every 12 hours or 14 mg/kg orally every 24 hours for 10 days|
|Skin or soft tissue infection||7 mg/kg orally every 12 hours for 10 days|
|Otitis media||7 mg/kg orally every 12 hours for 5 to 10 days or 14 mg/kg orally every 24 hours for 10 days|
If you take more pills than prescribed you should consult your doctor!
Stop taking this medicine and contact your doctor immediately if you are experiencing any of following side effects:
- Allergic reaction (swelling of the lips, swelling ot the tongue, swelling of the throat, swelling of the face, difficulty breathing, swelling of the hands, feets or ankles).
- Gastrointestinal disorders. Possible side effects include:
- abdominal pain. Antibiotics should be prescribed with caution in patients with a history of gastrointestinal disease, particularly colitis. Omnicef may cause diarrhea and pseudomembranous colitis!
- Dark urine
- Red or black stools
- Sore throat
- Heavy bleeding during menstrual periods
- Loss of appetite
- Yellow eyes or skin (jaundice)
- Genital pruritus (genital itching) and vaginitis (inflammation of the vagina)
- Pain during sexual intercourse
- Dry mouth
- Redness of the skin
Information on this website are provided for educational purposes only and are not intended for medical advice, diagnosis or treatment.
If you have any concerns or questions about your health, you should always consult with a physician or other health-care professional.