Omnicef (Cefdinir)
Dosages
Omnicef 300 mg
| Quantity | Price per tablet | Total price | |
|---|---|---|---|
| 30 | £3.31 | £99.27 | |
| 60 | £2.72 | £162.98 | |
| 90 | £2.51 | £225.94 | |
| 120 | £2.41 | £289.65 | |
| 180 | £2.31 | £415.59 |
Payment & Delivery
Your order is carefully packed and is dispatched within 24 hours. Here is what a typical package looks like.
Sized like a regular personal letter (approximately 24x11x0.7 cm), with no indication of what is inside.
| Delivery Method | Estimated delivery |
|---|---|
| Express Free for orders over £222.24 | Estimated delivery to the UK: 4-7 days |
| Standard Free for orders over £148.16 | Estimated delivery to the UK: 14-21 days |
Discount Coupons
- New Year's Day - 1 January 2026 9% NEWYEAR9
- Valentine's Day - 14 February 2026 6% VALENTINE6
- St David's Day - 1 March 2026 4% DAVID4
- St Patrick's Day - 17 March 2026 5% PATRICK5
- St George's Day - 23 April 2026 4% GEORGE4
- May Day - 1 May 2026 5% MAYDAY5
- Halloween - 31 October 2026 6% HALLOWEEN6
- Guy Fawkes Night - 5 November 2026 5% GUY5
- Christmas Eve - 24 December 2026 9% XMASEVE9
- Christmas Day - 25 December 2026 10% XMAS10
- Boxing Day - 26 December 2026 10% BOXING10
- New Year's Eve - 31 December 2026 8% NYE8
Brand Names
| Country | Brand Names |
|---|---|
 India | Cednir Cefdair Cefdiel Kefnir Sefdin |
 Japan | Cefzon |
 Malaysia | Cefdiel |
| Manufacturer | Brand Names |
|---|---|
| Ranbaxy Laboratories Ltd. | Adcef Cefdiel |
| Torrent Pharmaceuticals Limited | Adcef Cefdiel |
Description
Cefdinir (brand: Omnicef) is a third-generation oral cephalosporin antibiotic available as capsules and 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.
What it is used for
In U.S. labelling, cefdinir is indicated for certain infections when they are caused by susceptible bacteria, including community-acquired pneumonia, pharyngitis/tonsillitis (strep throat), acute maxillary sinusitis, acute bacterial flare-ups of chronic bronchitis, uncomplicated skin infections and, in children, acute bacterial otitis media (ear infections).
Ear infections
In the UK, cefdinir may be prescribed for acute bacterial otitis media in children 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 the infection is caused by susceptible Streptococcus pyogenes. Cefdinir can clear S. pyogenes from the throat, but it has not been studied for preventing 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 licensed in the UK for urinary tract infections. In some situations, a clinician may still prescribe it off-label based on local resistance patterns and urine culture and susceptibility results. Do not use cefdinir for a UTI unless your prescriber specifically recommends it.
Side effects
Common side effects reported with cefdinir include diarrhoea, nausea, headache, rash and vaginal thrush (in some women). Get urgent medical help if you have signs of a severe allergic reaction, such as hives, swelling of the face, lips or tongue, or trouble breathing. Contact a clinician promptly if you have severe or persistent diarrhoea, especially if it is watery or bloody.
Comparison: cefdinir vs amoxicillin vs Augmentin
| Feature | Cefdinir | Amoxicillin | Augmentin (amoxicillin/clavulanate) |
|---|---|---|---|
| Class / route | Third-generation cephalosporin; oral capsule or oral suspension | Penicillin class; oral (various forms) | Penicillin class + β-lactamase inhibitor; oral (various forms) |
| Ear infections (AOM) | Indicated in children with 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 prevention of rheumatic fever | Commonly used for susceptible streptococcal ENT infections (product-specific labelling varies) | May be used when broader cover is needed; still in the penicillin class |
| Pneumonia | Indicated for community-acquired pneumonia due to susceptible organisms | Labelling includes lower respiratory tract infections due to susceptible β-lactamase-negative isolates | Labelling includes LRTI due to β-lactamase-producing H. influenzae and M. catarrhalis |
| Penicillin allergy | Cross-reactivity between penicillins and third-generation cephalosporins is generally low, but patients with a history of immediate or severe reactions (for example, anaphylaxis) should discuss options carefully with a clinician. | A true penicillin allergy is a major concern - do not take it unless your clinician confirms it is safe for you. | The same penicillin-class concern applies as with amoxicillin; do not take it unless your clinician confirms it is safe for you. |
| Common side effects (general) | Diarrhoea, nausea, headache, rash; thrush in some women | GI upset, rash (varies by product and patient) | GI upset (often more diarrhoea), rash (varies by product and patient) |
Storage
Capsules and dry powder should be stored at 25°C (77°F); excursions are permitted to 15-30°C (59-86°F). After mixing, the oral suspension should be stored at controlled room temperature, 20-25°C (68-77°F). Shake well before each dose and discard any unused suspension after 10 days. Refrigeration is not required; do not freeze.
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 licensed in the UK for UTIs, and the choice of antibiotic depends on the site of infection, susceptibility and your allergy history.
