Omnicef (Cefdinir)

Omnicef
4.85 ratingsReviews
Generic:
Cefdinir
Indications:
infections
Analogs:
Amoxicillin Cefuroxime Cefpodoxime Cephalexin Azithromycin Clarithromycin Ceftin Vantin Suprax Cefzil Keflex Duricef Amoxil Augmentin Zithromax Biaxin
We have generic cefdinir 300 mg in stock and ready to ship. It contains the same active ingredient as the brand-name product.
In stock: 18 packs
AdultsPregnancyAllergiesDiabetesBreastfeedingChildrenDriving

Dosages

Omnicef 300 mg

Quantity Price per tablet You save Total price
30 $5.97 - $179.00
60 $4.88 $65.00 $293.00
90 $4.51 $131.00 $406.00
120 $4.34 $195.00 $521.00
180 $4.15 $327.00 $747.00

Manufacturers

AbbVie Inc.Ranbaxy Laboratories Ltd.Torrent Pharmaceuticals Limited

Payment & Shipping

Package Example

Your order is carefully packed and ships within 24 hours. Here is what a typical package looks like.

Sized like a regular personal letter (9.4x4.3x0.3 inches), with no indication of what is inside.

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Back View
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Shipping Times
Shipping MethodEstimated delivery
Express Free for orders over $300.00Estimated delivery to the U.S.: 4-7 days
Standard Free for orders over $200.00Estimated delivery to the U.S.: 14-21 days
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Discount Coupons

  • Independence Day - July 4, 2026 10% JULY410
  • Labor Day - September 7, 2026 7% LABOR07
  • Thanksgiving - November 26, 2026 9% THANKS09

FAQ

Cefdinir is a prescription-only medicine when purchased from local pharmacies in the United States. Our store policy allows Omnicef to be ordered without a prescription and sent by mail. Our store ordering policy is separate from the medicine's prescription status at US pharmacies.

Do not save leftover cefdinir capsules for a future illness or give them to someone else. The best option is to use an authorized medicine take-back program when available. If a take-back option is not available, follow local disposal guidance or ask a pharmacist how to dispose of the capsules safely.

The manufacturer of the supplied product may vary. The manufacturer's name is shown on the product packaging.

Take cefdinir capsules by mouth exactly as directed for the infection being treated. They may be taken with or without food; swallow the capsule with water. Aluminum- or magnesium-containing antacids and iron products can reduce absorption, so separate them from cefdinir by at least 2 hours. The dose schedule and treatment length depend on the infection and kidney function; common adult regimens use 300 mg every 12 hours or 600 mg once daily for the prescribed duration.

Description

Note: Images in the description are provided for informational purposes and may differ from the actual appearance of the product. Please refer to the product name, strength, ingredients, and dosage form.

Cefdinir (brand: Omnicef) is a third-generation oral cephalosporin antibiotic available as capsules and as an oral suspension. It is used to treat certain mild to moderate bacterial infections caused by susceptible organisms. Use cefdinir only as prescribed-antibiotics do not treat viral infections (such as colds or flu).

Omnicef (Cefdinir) 300 mg

What it is used for

In U.S. labeling, cefdinir is indicated for select infections when caused by susceptible bacteria, including community-acquired pneumonia, pharyngitis/tonsillitis (strep throat), acute maxillary sinusitis, acute bacterial exacerbations of chronic bronchitis, uncomplicated skin infections, and (in pediatric patients) acute bacterial otitis media (ear infections).

Ear infections

Cefdinir may be prescribed for acute bacterial otitis media in pediatric patients when caused by susceptible strains of Haemophilus influenzae (including β-lactamase producing strains), Streptococcus pneumoniae (penicillin-susceptible strains only), and Moraxella catarrhalis (including β-lactamase producing strains).

Strep throat

For pharyngitis/tonsillitis ("strep throat"), cefdinir is indicated when caused by susceptible Streptococcus pyogenes. Cefdinir can eradicate S. pyogenes from the throat, but it has not been studied for prevention of rheumatic fever after strep pharyngitis/tonsillitis (only intramuscular penicillin has been shown to prevent rheumatic fever).

Pneumonia

For community-acquired pneumonia, cefdinir is indicated for infections due to susceptible strains of Haemophilus influenzae (including β-lactamase producing strains), Haemophilus parainfluenzae (including β-lactamase producing strains), Moraxella catarrhalis (including β-lactamase producing strains), and Streptococcus pneumoniae (penicillin-susceptible strains only).

UTI

Cefdinir is not FDA-approved for urinary tract infections. Some clinicians may use it off-label in specific situations based on local resistance patterns and urine culture/susceptibility results. Do not use cefdinir for a UTI unless your prescriber specifically recommends it.

Side effects

Common side effects reported with cefdinir include diarrhea, nausea, headache, rash, and vaginal yeast infection (in some women). Seek urgent medical help for signs of a severe allergic reaction (hives, swelling of the face/lips/tongue, trouble breathing). Contact a clinician promptly for severe or persistent diarrhea, especially if it is watery or bloody.

Comparison: cefdinir vs amoxicillin vs Augmentin

Feature Cefdinir Amoxicillin Augmentin (amoxicillin/clavulanate)
Class / route 3rd-gen cephalosporin; oral capsule or oral suspension Penicillin-class; oral (various forms) Penicillin-class + β-lactamase inhibitor; oral (various forms)
Ear infections (AOM) Indicated in pediatric AOM due to susceptible H. influenzae, S. pneumoniae (penicillin-susceptible strains only), M. catarrhalis Indicated for ENT infections due to susceptible β-lactamase-negative isolates Indicated for AOM caused by β-lactamase-producing H. influenzae and M. catarrhalis
Strep throat Indicated for pharyngitis/tonsillitis due to susceptible S. pyogenes; not studied for rheumatic fever prevention Commonly used for susceptible streptococcal ENT infections (product-specific labeling varies) May be used when broader coverage is needed; still penicillin-class
Pneumonia Indicated for community-acquired pneumonia due to susceptible organisms Labeling includes lower respiratory tract infections due to susceptible β-lactamase-negative isolates Labeling includes LRTI due to β-lactamase-producing H. influenzae and M. catarrhalis
Penicillin allergy Cross-reactivity between penicillins and 3rd-generation cephalosporins is generally low, but patients with a history of immediate or severe reactions (e.g., anaphylaxis) should discuss options carefully with a clinician. A true penicillin allergy is a major concern-do not take unless your clinician confirms it is safe for you. Same penicillin-class concern as amoxicillin; do not take unless your clinician confirms it is safe for you.
Common side effects (general) Diarrhea, nausea, headache, rash; yeast infection in some women GI upset, rash (varies by product and patient) GI upset (often more diarrhea), rash (varies by product and patient)

Storage

Capsules and dry powder should be stored at 77°F (25°C); excursions permitted to 59-86°F (15-30°C). After mixing, the oral suspension is stored at controlled room temperature 68-77°F (20-25°C). Shake well before each dose and discard any unused suspension after 10 days. Refrigeration is not required; avoid freezing.

Cefdinir (Omnicef) is an oral antibiotic used for certain respiratory infections (including community-acquired pneumonia), strep throat caused by susceptible bacteria, and (in children) some ear infections. It is not FDA-approved for UTIs, and antibiotic choice depends on the infection site, susceptibility, and your allergy history.

Medically reviewed by
Brian Holtry
MD, infectious diseases specialist and medical writer
Updated August 11, 2026

Customer questions

Asked by Angela L, Jacksonville, United States

Before I place my order, what package sizes can I choose for the 300 mg cefdinir capsules?

Answered by Support team

The 300 mg cefdinir capsules are listed in packages of 30, 60, 90, 120, or 180 capsules. Select the package quantity that matches the amount you intend to order.

Asked by Joshua D, Fort Worth, United States

Will cefdinir capsules be okay during normal transportation, or do they need refrigerated shipping?

Answered by Support team

Cefdinir capsules are a solid oral dosage form and normally tolerate ordinary transportation when properly packed and protected from excess moisture and light; refrigeration is not required. Store them at 77°F, with permitted excursions from 59°F to 86°F, and check the package and capsules for damage on arrival.

Asked by Joshua A, Detroit, United States

My order arrived in Detroit. Where can I confirm that I received the cefdinir strength I selected?

Answered by Support team

Check the package label for "Cefdinir," "300 mg," and "capsule." Also compare the manufacturer name, lot number, expiration date, and any capsule imprint if one is present. Do not use the product until any difference in ingredient, strength, dosage form, seal, or physical condition has been checked.

Asked by Joshua G, Los Angeles, United States

My doctor mentioned cefdinir for a possible sinus infection. What kinds of infections is it generally used to treat?

Answered by Support team
Medical reviewed by Brian Holtry

Cefdinir is a cephalosporin antibiotic used for certain susceptible bacterial infections, including some ear infections, bacterial sinus infections, strep throat or tonsillitis, community-acquired pneumonia, bronchitis exacerbations, and uncomplicated skin infections. It does not treat viral illnesses such as colds or influenza, and whether it fits a particular infection depends on the diagnosis and likely bacteria.

Product specifications

Active ingredientCefdinir
Drug classCephalosporin antibiotic
Dosage formCapsule
Available strengths300 mg
RouteOral
StorageStore at 77°F; excursions permitted between 59°F and 86°F. Keep capsules in a tightly closed container, away from excess moisture and light.
ATC codeJ01DD15

Regulatory information

FDA ApprovalCefdinir is officially approved for human pharmaceutical use in the United States.
Prescription StatusOral capsules containing cefdinir are available only with a valid prescription from a licensed healthcare provider.

More information