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Omnicef (Cefdinir)

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Generic Omnicef is effective against susceptible bacteria causing infections of the middle ear (otitis media), tonsils (tonsillitis ), throat, larynx (laryngitis), bronchi (bronchitis), lungs (pneumonia), and skin and other soft tissues.

Other names for this medication:

Similar Products:
Amoxil, Bactrim, Ampicillin, Augmentin, Biaxin


Also known as:  Cefdinir.


Generic Omnicef is a semi-synthetic (partially man-made) oral antibiotic in the cephalosporin family of antibiotics. Like other cephalosporins cefdinir stops bacteria from multiplying by preventing bacteria from forming walls that surround them. The walls are necessary to protect bacteria from their environment and to keep the contents of the bacterial cell together. Bacteria cannot survive without a cell wall. Generic Omnicef is active against a very wide spectrum of bacteria, including Staphylococcus aureus; Streptococcus pneumoniae; Streptococcus pyogenes (the cause of strep throat); Hemophilus influenzae; Moraxella catarrhalis; E. coli ; Klebsiella; and Proteus mirabilis. It is not active against Pseudomonas. Therapeutic uses of cefdinir include otitis media (infections of the middle ear), infections of soft tissues, and respiratory tract infections.

Generic name of Generic Omnicef is Cefdinir.

Omnicef is also known as Cefdinir, Sefdin, Adcef.

Brand name of Generic Omnicef is Omnicef.


Generic Omnicef is taken once or twice daily, depending on the nature and severity of the infection.

The capsules or suspension can be taken with or without food.

Patients with advanced renal disease may need to take lower doses to prevent accumulation of cefdinir since it is eliminated from the body by the kidneys.

For adult infections the usual dose is 300 mg every 12 hours or 600 mg per day for 5-10 days depending on the nature and severity of the infection.

The recommended dose for children 6 months to 12 years of age is 7 mg/kg every 12 hours or 14 mg/kg per day for 5-10 days depending on the infection.

For most infections once daily dosing is as effective as twice daily dosing, though once daily dosing has not been evaluated for the treatment of skin infections or pneumonia.

Do not stop taking Generic Omnicef suddenly.


If you overdose Generic Omnicef and you don't feel good you should visit your doctor or health care provider immediately.


Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F) away from moisture and heat. Throw away any unused medicine after the expiration date. Keep out of the reach of children.

Side effects

The most common side effects associated with Omnicef are:

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Side effect occurrence does not only depend on medication you are taking, but also on your overall health and other factors.


Do not use Generic Omnicef if you are allergic to Generic Omnicef components.

Do not take Generic Omnicef while you are pregnant or have nurseling.

Try to be careful with Generic Omnicef usage in case of having asthma, emphysema or bronchitis along with asthma, certain heart problems (e.g., congestive heart failure, cardiogenic shock, heart block or any conduction or sinus node problems, very slow heartbeat), untreated blood mineral imbalance (electrolyte imbalance), very low blood pressure, kidney or liver problems.

Avoid alcohol.

It can be dangerous to stop Generic Omnicef taking suddenly.

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Dermatologists treat a variety of uncomplicated skin and skin structure infections (uSSSIs) such as folliculitis, impetigo, erysipelas, cellulitis, furuncles, carbuncles, and non-perirectal abscesses. Most uSSSIs are caused by Staphylococcus aureus and Streptococcus pyogenes. The new extended-spectrum cephalosporins (cefdinir, cefpodoxime) offer efficacy against most Gram-positive and Gram-negative pathogens. Despite recently published guidelines, many physicians do not prescribe cephalosporins for uSSSIs out of concern that these agents will produce a hypersensitivity reaction in patients allergic to penicillin. Although the rate of cephalosporin reaction in penicillin-allergic patients is often quoted as up to 10%, this rate does not take into account the 1% to 3% risk for allergy to cephalosporin alone and the nonspecific increased risk of penicillin-allergic patients to develop hypersensitivity to other drugs. When these additional risks are considered, the likelihood of a reaction in known penicillin-allergic patients, especially to most third-generation and extended spectrum cephalosporins, becomes less than 1%. Cephalosporins with side chains unlike those of penicillin or ampicillin side chains are less likely to result in an allergic reaction in penicillin or ampicillin-allergic patients than cephalosporins with similar side chains. Although both cefdinir and cefpodoxime are considered to carry a very low risk of cross reactivity with penicillin or ampicillin, the former demonstrates better activity against S. aureus. Among the late-generation cephalosporins, cefdinir is the most potent oral agent when tested against oxacillin-susceptible staphylococci, 4- to 16-fold more active than cefprozil and cephalexin, respectively.

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Because of increasing resistance to older antimicrobial agents, newer drugs need to be evaluated for the treatment of skin and skin-structure infections (SSSIs). This double-masked, randomized, comparative, multicenter study enrolled patients aged 13 years or older with SSSIs to receive either cefdinir 300 mg BID or cephalexin 500 mg QID for 10 days. Nine hundred fifty-two patients (474 in the cefdinir group and 478 in the cephalexin group) took part, primarily white males between 18 and 65 years of age. There were two follow-up visits, with efficacy determined at the test-of-cure visit, 7 to 16 days posttherapy. Many patients were not microbiologically assessable, primarily because of negative cultures at study admission. Patients who required surgical intervention (e.g., incision and drainage) at the site of infection more than 24 hours after the initiation of drug therapy were defined as treatment failures. Significantly more isolated pathogens were resistant to cephalexin than to cefdinir. In the 178 efficacy-assessable cefdinir-treated patients, the rate of pathogen eradication was 93% (200/215), and the rate of successful clinical response was 88% (157/178), compared with 89% (221/247) and 87% (177/204), respectively, in the 204 efficacy-assessable cephalexin-treated patients. Using confidence-interval analysis, the microbiologic and clinical response rates of the cefdinir-treated patients were statistically equivalent to those of the cephalexin-treated patients. At the follow-up visits, patients were questioned about any adverse events occurring since their previous visit. Any untoward symptom occurring during or within 2 days after completion of drug treatment was considered an adverse reaction if the investigator judged it to be definitely, probably, or possibly related to the study drug. One hundred twenty-three (26%) cefdinir-treated patients and 77 (16%) cephalexin-treated patients experienced at least one adverse reaction, a statistically significant difference. Study drug was discontinued for adverse reactions in 20 (4%) cefdinir-treated patients and 13 (3%) cephalexin-treated patients; in the two groups, 10 and 7 patients, respectively, were discontinued for diarrhea. Cefdinir taken BID was as effective as cephalexin taken QID in the treatment of mild-to-moderate SSSIs and was well tolerated by most patients. The increased antibacterial activity of cefdinir must be balanced against the higher rate of diarrhea seen in patients treated with this drug.

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To evaluate prevalence of ss-lactamase nonproducing ampicillin-resistant (BLNAR) strains of Haemophilus influenzae with mutations in ftsI gene encoding penicillin-binding protein 3 (PBP3) among children with otitis media.

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We analyzed the National Ambulatory Medical Care Survey, 2002-2006 (N = 1114), which occurred in US physicians' offices. The patients were children aged 6 months to 12 years who were diagnosed with AOM. The time comparisons were the 30-month periods before and after the guideline. The main outcome was the encounter rate at which no antibiotic-prescribing was reported. Secondary outcomes were the identification of factors associated with encounters at which no antibiotic-prescribing was reported and antibiotic- and analgesic-prescribing rates.

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Amoxicillin would still be advocated therefore as being a suitable first-line agent, while reduced susceptibility of Prevotella strains remains a matter of concern with penicillins. Amoxicillin/clavulanate, clindamycin, and metronidazole are useful alternatives in combating the anaerobic bacteria involved in dentoalveolar infection.

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Farnesol is a promising adjuvant agent against S. aureus skin infections treated with beta-lactam antibiotics. Further, 5% xylitol inhibited glycocalyx production by S. aureus cells and consequently had a suppressive effect on the colonization of S. aureus on the horny cells of AD lesions.

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Open label noncomparative trial.

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Seven extended-spectrum beta-lactamases related to TEM and four enzymes derived from SHV-1 were transferred to a common Escherichia coli host so that the activity of a variety of beta-lactams could be tested in a uniform genetic environment. For most derivatives, penicillinase activity was 10% or less than that of strains making TEM-1, TEM-2, or SHV-1 beta-lactamase, suggesting that reduced catalytic efficiency accompanied the broader substrate spectrum. Despite this deficit, resistance to aztreonam, carumonam, cefdinir, cefepime, cefixime, cefmenoxime, cefotaxime, cefotiam, cefpirome, cefpodoxime, ceftazidime, ceftibuten, ceftizoxime, ceftriaxone, cefuroxime, and E1040 was enhanced. For strains producing TEM-type enzymes, however, MICs of carumonam, cefepime, cefmenoxime, cefotiam, cefpirome, and ceftibuten were 8 micrograms/ml or less. Susceptibilities of cefmetazole, cefotetan, cefoxitin, flomoxef, imipenem, meropenem, moxalactam, temocillin, FCE 22101, and Sch 34343 were unaffected. FCE 22101, imipenem, meropenem, and Sch 34343 were inhibitory for all strains at 1 microgram/ml or less. In E. coli an OmpF- porin mutation in combination with an extended-spectrum beta-lactamase enhanced resistance to many of these agents, but generally by only fourfold. Hyperproduction of chromosomal AmpC beta-lactamase increased resistance to 7-alpha-methoxy beta-lactams but not that to temocillin. When tested at 8 micrograms/ml, clavulanate was more potent than sulbactam or tazobactam in overcoming resistance to ampicillin, while cefoperazone-sulbactam was more active than ticarcillin-clavulanate or piperacillin-tazobactam, especially against TEM-type extended-spectrum beta-lactamases.

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In order to investigate penicillin resistance (Pcr) in Streptococcus pneumoniae from clinical sources in Japan, a total 1,127 strains of S. pneumoniae was collected at random from 36 institutions participating to "Working group for Pcr S. pneumoniae" around the country in 1993-1994. These strains were isolated more frequently from sputum (38.2%), throat (31.4%), nasal discharge (16.4%), and otorrhea (5.7%). A small number of isolates from blood (19 strains; 1.8%), cerebrospinal fluid (11 strains; 1.0%), and pleural fluid (2 strains; 0.2%) were included respectively. Patients from whom S. pneumoniae was isolated have mostly been associated with children < or = 12 years of age and adults 60 < or = years olds. These isolates were tested for susceptibility to penicillin G, ampicillin, oxacillin, cefixime, cefdinir, imipenem, panipenem, erythromycin, clindamycin, minocycline, and vancomycin by an agar dilution method using Mueller Hinton agar supplemented with 10% sheep blood. Strains with the MICs > or = 0.125 micrograms/ml for penicillin G were defined as a Pc resistance. Of the 1,127 strains, 471 strains (41.8%) were identified as a Pc resistance. Pcr S. pneumoniae were almost resistant to other beta-lactams, including ampicillin, oxacillin, ceftizoxime, cefixime, cefdinir. Although, the MICs of imipenem and panipenem ragned from 0.004-2.0 micrograms/ml with 2 peaks distributions, these antibiotics inhibited the growth of most of Pcr S. pneumoniae at the lowest concentrations of < or = 0.5 microgram/ml. Only vancomycin resistant strain was not detected in these isolates. Most of the Pcr strains were simultaneously resistant to macrolides and minocycline. Further more, isolation frequencies of Pcr S. pneumoniae in west Japan, were relatively high compared with those of east Japan.

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Ciprofloxacin-resistant Escherichia coli isolates (n = 1,858) from outpatient midstream urine specimens at 40 North American clinical laboratories in 2004 to 2005 were frequently resistant to ampicillin (79.8% of isolates) and trimethoprim-sulfamethoxazole (66.5%); concurrent resistance to cefdinir (9.0%) or nitrofurantoin (4.0%) was less common. Only 10.8% of isolates were resistant to ciprofloxacin alone. Fluoroquinolone-resistant isolates of E. coli from urine were frequently multidrug resistant.

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Facial vein thrombophlebitis is an uncommon complication of sinusitis. In cases where periorbital swelling complicating sinusitis is diagnosed, clinical findings of swelling and erythema extending beyond the orbital region into the cheek should alert the physician about this unusual complication and the need for further contrast-enhanced imaging and venography. The radiologist must be particularly careful in the evaluation of vascular structures of the face and neck in these children. CT and MRI with contrast material and MR venography are studies that clearly demonstrate the vascular anatomy and possible complications. However, MR venography confirms flow abnormalities within the venous system with the advantage of avoiding radiation exposure to the pediatric patient.

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Fever was reduced and GABHS was eradicated more rapidly from children treated with cefdinir as compared to amoxicillin.

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Cephalosporins were found to be more effective than penicillins in the eradication of group A beta-hemolytic streptococcal (GABHS) from tonsillar tissues. This study investigated the effect of amoxicillin and cefdinir therapies on the rate of eradication of GABHS from the tonsils of children with acute pharyngo-tonsillitis (PT).

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Comparative, investigator-blinded multicenter trial.

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In this randomized, double-blind, placebo-controlled trial, we randomly assigned Malawian children, 6 to 59 months of age, with severe acute malnutrition to receive amoxicillin, cefdinir, or placebo for 7 days in addition to ready-to-use therapeutic food for the outpatient treatment of uncomplicated severe acute malnutrition. The primary outcomes were the rate of nutritional recovery and the mortality rate.

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The mucoadhesive microcapsules were prepared by using various concentrations of three different mucoadhesive polymers, namely, chitosan, Carbopol 934P, and methyl cellulose as wall materials and cefdinir as the core material employing orificeionic gelation method. The prepared microcapsules were characterized by scanning electron microscope (SEM) and Fourier transform infrared spectrometry (FT-IR). The prepared microcapsules were found to be spherical with particle size ranging from 765±20 to 985±10 μm and encapsulation efficiencies in the range of 55%-92%. The formulation containing Carbopol 934P as mucoadhesive polymer was found to be best with particle size 946±10 μm. The ex vivo wash-off test showed that the mucoadhesion after 1 h was 80% and the in vitro drug release was extended for more than 12 h. FT-IR spectra indicate that there was no interaction between drug and the polymers used in the formulation. Cefdinir is better absorbed from the upper part of the gastrointestinal tract, it suffers from low oral bioavailability (20-30%), shorter biological half-life (1-2 h), and less transit time. Thus, it can be concluded that microcapsules prepared using Carbopol 934P have promising properties for use as mucoadhesive carrier to increase the residence time of cefdinir.

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The present report presents two cases of confluent and reticulate papillomatosis. Case 1 was a 24-year-old man who had suffered from skin eruptions for six months, and Case 2 was a 19-year-old woman who had had this disease for three days. In both patients, reticular dark brown papules, accompanied by mild keratosis and infiltration, spread from the trunk to the neck and upper arm. Direct light microscopy did not detect the presence of any fungi, and histopathological examinations confirmed hyperkeratosis, acanthosis, papillomatosis, and mild small-round-cell infiltration. Thus, these patients were diagnosed as confluent and reticulate papillomatosis. Neither one had diabetes or thyroid dysfunction. In Case 1, cefdinir was effective, and in Case 2, minocycline hydrochloride and ketoconazole were effective. To the best of our knowledge, this was the first documented case of confluent and reticulate papillomatosis responding to cefdinir.

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The in vitro activities (MIC and MBC) of telithromycin (HMR 3647) against clinical isolates in Japan were investigated in comparison with those of erythromycin A, clarithromycin, azithromycin, amoxycillin, cefdinir and levofloxacin. Telithromycin was more potent than the reference compounds against erythromycin A-susceptible or resistant Streptococcus pneumoniae isolates possessing either mef (mefA or mefE) genes or the ermB gene. Against erythromycin A-susceptible or inducibly resistant Staphylococcus aureus and erythromycin A-susceptible and intermediate Enterococcus faecalis, telithromycin was highly active.

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The clinical efficacy and safety of clarithromycin (CAM) and cefdinir (CFDN) were evaluated in 65 pediatric outpatients with group A beta-hemolytic streptococcal tonsillopharyngitis. Treatment was "effective" or better in 26 (78.8%) children receiving CAM and in 27 (87.1%) receiving CFDN based on antigen clearance and the "Criteria for Evaluation in Clinical Trials of Antibacterial Agents in Children" proposed by Japan Society of Chemotherapy (p = NS). The causative organisms were eradicated in 94.7% and 93.8% of subjects in the CAM and CFDN groups, respectively (p = NS). Adverse drug reactions were limited to moderate diarrhea in one patient in each group, and subsided during treatment. Causative organisms exhibited good susceptibility to CAM and CFDN. These results suggest excellent efficacy, safety and usefulness of CAM and CFDN in the treatment of group A beta-hemolytic streptococcal tonsillopharyngitsis in children.

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Assessing elderly patients suspected of the HI infection, and organized management for treatment are essential to improving outcome.

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The effect of serum on the bactericidal activity of cefdinir, and the ability of the antibiotic to modify the interaction of bacteria with human polymorphonuclear neutrophils were assessed. In the presence of antibiotic, serum-resistant Escherichia coli were sensitised to the bactericidal activity of normal human serum. Cefdinir enhanced opsonophagocytic killing of Escherichia coli and Staphylococcus aureus at suprainhibitory concentrations. Significant potentiation of killing occurred with the combination of inhibitory concentrations of cefdinir, neutrophils and sub-optimal levels of serum opsonins. Pre-exposure of Escherichia coli, but not Staphylococcus aureus, to cefdinir enhanced phagocytic uptake and killing of the antibiotic-damaged bacteria. These results indicate that cefdinir-mediated phenotypic modification of Escherichia coli renders the bacteria susceptible to serum antibacterial activity and phagocytic uptake and intracellular killing.

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Of 447 children enrolled, 230 were clinically and bacteriologically evaluable (74% 2 years old or younger; 57% treated for AOM in previous 3 months). Bacteriologic eradication, based on repeat tympanocentesis on days 4-6, was achieved in 74% (170 of 230) of children; 76% (201 of 266) of AOM pathogens were eradicated. Eradication of penicillin-susceptible, -intermediate and -resistant S. pneumoniae was 91% (50 of 55), 67% (18 of 27) and 43% (10 of 23), respectively (P < 0.001); eradication of H. influenzae was 72% (90 of 125). Overall clinical response at days 12-14 was 83% (76 and 82% for children with S. pneumoniae and Haemophilus influenzae, respectively). Sustained clinical response at days 25-28 was 85%. Clinical response was 83% for culture-positive children versus 96% for culture-negative children at baseline tympanocentesis (P < 0.001).

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The clinical efficacy of cefditoren pivoxil (CDTR-PI) was evaluated for 43 pediatric patients with acute otitis media or acute sinusitis. The causative organisms were identified and their susceptibilities to 6 oral beta-lactam antibiotics were measured; ampicillin (ABPC), cefaclor (CCL), cefdinir (CFDN), cefditoren pivoxil (CDTR-PI), cefteram pivoxil (CFTM-PI) and cefpodoxime proxetil (CPDX-PR). The ages of 43 patients were distributed from 4 months to 10 years and 7 months, and especially children under 4 years accounted for 72% (31 cases). In 22 cases (51%), Haemophilus influenzae or Streptococcus pneumoniae were identified as the pathogens, but in 18 cases, no causative organisms were defined. Treatment by CDTR-PI was successful in 12 cases out of 15 evaluable cases in which H. influenzae or S. pneumoniae were identified as the main causative organisms. From the susceptibility testing of them, some strains of H. influenzae were found to be ABPC-resistant and some strains of S. pneumoniae were benzylpenicillin (PCG)-resistant. To support above clinical evaluation of CDTR-PI, susceptibility testings on clinically isolated H. influenzae (81 strains) and S. pneumoniae (79 strains) were performed using above mentioned 6 oral beta-lactam antibiotics. The MIC80s against H. influenzae were; CDTR-PI 0.06 microgram/ml, CCL 2 micrograms/ml, CPDX-PR 0.125 microgram/ml, CFTM-PI 0.03 microgram/ml, CFDN 1 microgram/ml and ABPC 1 microgram/ml. Those against S. pneumoniae were; CDTR-PI 0.5 microgram/ml, CCL > 4 micrograms/ml, CPDX-PR 2 micrograms/ml, CFTM-PI 1 microgram/ml, CFDN 2 micrograms/ml and ABPC 1 microgram/ml. From those results, it was concluded that CDTR-PI or CFTM-PI may be preferable for the treatment of acute otitis media and acute sinusitis in children.

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Beta-lactamase-producing (BLP) strains having the bla gene were identified in 16 isolates (2.5%). PGM strains were identified in 279 isolates (43.3%). There were 242 PGM1-non-BLP strains (37.6%) with mutations in the variable mutated locus of ftsI, 35 PGM2-non-BLP strains (5.4%) with mutations in the highly mutated locus of ftsI and 2 BLP-PGM strains (0.3%) with mutations in ftsI that produced beta-lactamase. BLP-non-PGM strains producing beta-lactamase without mutations in ftsI were identified in 14 isolates (2.2%). MICs of PGM1-non-BLP strains to AMP were 0.5-2.0 microg/ml. The MIC90 of CDN to the PGM1-non-BLP strains was the lowest (0.06 microg/ml). The proportion of PGM1-non-BLP strains increased rapidly during 1999-2002 and then decreased in 2003. In contrast, the proportion of PGM2-non-BLP strains increased in 2003.

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The spectrum and potency of cefdinir, an orally administered cephalosporin, was reevaluated for the uncomplicated skin and soft tissue infection (uSSTI) indication using contemporary isolates from 2004 to 2005. Cefdinir continues to have high rates of susceptibility against methicillin-susceptible staphylococci (100.0%), beta-hemolytic streptococci (groups A and B; 100.0%), viridans group streptococci (88.9%), Escherichia coli (93.2%), and Klebsiella pneumoniae (90.0%). No diminished activity was detected since the last evaluation (1997-2002 isolates), and cefdinir remains significantly more potent (4- to 16-fold) than cephalexin, even when using surrogate agents of cephalexin susceptibility that were suspect for estimating true clinical utility. Activity greater than cephalexin (4-fold) was also noted for cefdinir against community-associated methicillin-resistant Staphylococcus aureus isolates. Cefdinir should be considered as a viable option for the therapy uSSTI caused by indicated species.

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Cefditoren and other orally administered cephalosporins are infrequently included in resistance surveillance studies. Here we evaluated 359 contemporary (2004-2006) strains of Streptococcus pneumoniae, including penicillin-intermediate (12.0%) and -resistant (22.8%) subsets from United States patients by reference broth microdilution methods. Cefditoren was the most potent cephalosporin tested (MIC(50), 0.015 mg/L), including against penicillin-intermediate strains (MIC(50), 0.12 mg/L), and was two-, four- and eight-fold more active than cefuroxime, cefdinir and cefprozil, respectively. Penicillin-resistant strains were largely resistant to all tested ss-lactams. We confirm the continued spectrum and potency for cefditoren against S. pneumoniae that surpasses that of other orally administered cephalosporins.

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A COX inhibitor had an effect on vascular permeability in CNV and may have improved exudative changes.

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We conducted a retrospective cohort study of children aged 6 months to 6 years and received their first diagnosis of UTI in a network of 27 outpatient pediatric practices between July 1, 2001, and May 31, 2006. We examined the relationship between antimicrobial resistance in UTI isolates and exposure to specific antimicrobial agents (amoxicillin, amoxicillin-clavulanate, cefdinir, trimethoprim-sulfamethoxazole, and azithromycin) in the previous 120 days. We developed multivariable logistic regression models for resistance to ampicillin, amoxicillin-clavulanate, trimethoprim-sulfamethoxazole, and first-generation and third-generation cephalosporins, adjusting for potential confounders such as age, number of siblings, recent hospitalizations, and child care exposure.

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The purpose of this study was to evaluate various oral antimicrobial agent levels in tooth extraction sites.

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To examine the microbiologic and clinical efficacy of a 5-day course of cefdinir in the treatment of tympanocentesis-documented acute otitis media (AOM).

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omnicef infant dosage 2017-10-29

Of the S. pneumoniae isolates, 99.6% were susceptible to buy omnicef moxifloxacin, gatifloxacin and levofloxacin; the corresponding figure for H. influenzae was 100%. All M. catarrhalis isolates had moxifloxacin MICs

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omnicef dosage 2015-08-29

Microdilution MIC assays were performed using CLSI-approved methods. S. buy omnicef pneumoniae 19A strains were identified by quellung reaction.

omnicef pediatric dose 2016-05-16

Upregulation of oligopeptide transport activity by dietary protein, certain dipeptides and amino acids has buy omnicef been reported in the rat intestine and a human intestinal cell line.

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Regarding Neisseria gonorrhoeae, the National Committee for Clinical Laboratory Standards (NCCLS) has not defined the breakpoint minimum inhibitory concentration (MIC) for expanded spectrum cephems such as cefpodoxime and ceftizoxime, because of the absence of resistant strains to these antibiotics. To date, in gonococcal urethritis, after treatment with third generation cephems and aztreonam, clinical failures caused by resistant N. gonorrhoeae strains have not been reported. However, we experienced two clinical failures in patients with gonococcal urethritis treated with cefdinir and aztreonam. N. gonorrhoeae isolates from these two patients showed high-level MICs to these agents. buy omnicef The MIC of cefdinir was 1 microg/ml for both strains and that of aztreonam was 8 microg/ml for both strains, while the MICs of other beta-lactams were also higher than the NCCLS value, except for ceftriaxone, for which the MIC was 0.125 microg/ml for both strains. Moreover, the MICs of fluoroquinolones, tetracyclines, and erythromycin against these two isolates were higher than the NCCLS susceptibility value. These isolates were susceptible to spectinomycin. In N. gonorrhoeae, the emergence of these beta-lactam-resistant isolates is of serious concern. However, a more serious problem is that these isolates were already resistant to non-beta-lactam antimicrobials. In Japan, ceftriaxone has not been permitted for clinical use against gonococcal infections. Therefore, in Japan, patients with gonococcal urethritis caused by these resistant N. gonorrhoeae strains should be treated with cefodizime or spectinomycin.

omnicef 125 mg 2016-08-20

The synthesis of 7 beta-[(Z)-2-(aminothiazol-4-yl)-2-hydroxyiminoacetamido] cephalosporins (Ia-i) modified at the C-3 position of a cephem nucleus and the effect of the C-3 substituents on the antibacterial activity and oral absorbability are discussed. The cephems (Ie, h and i) having buy omnicef a C-3 substituent such as 1-propenyl, ethylthio and vinylthio group as well as FK482 (cefdinir) exhibited excellent antibacterial activities against both gram-positive and gram-negative bacteria. However, those compounds showed poor absorption rate after oral administration in rats. It is concluded that the vinyl moiety at the 3-position is necessary to display fairly oral absorptivity in a series of 7 beta-[(Z)-(2-aminothiazol-4-yl)-2-hydroxyiminoacetamido]c eph ems.

omnicef 200 tab 2016-10-09

The objective of present investigation was to study the effect of gut microbiota alteration by oral administration of targeted delivery of pH sensitive cefdinir microspheres to high-fructose-fed (HFD) rats. Rats were fed with a high-fructose diet with or without cefdinir microsphere administration for 30 days. The fecal microbiota community, oral glucose tolerance, the markers of liver injury, plasma and hepatic lipids profile, and histological evaluation were investigated. The levels of blood glucose, liver injury markers, lipid profile in plasma and liver, and fat tissue were significantly increased in high buy omnicef -fructose-fed rats. However, after pH-sensitive cefdinir microsphere administration, the elevation of these parameters was significantly suppressed. Cef EL significantly lowered the increased AST (p < 0.05) and ALT (p < 0.001) levels in HFD group. There is a significant lower (p < 0.01) AUCglucose level in Cef EL group than HFD group The histological changes in the liver and the small and large intestines were more profound in HFD group as compared to cefdinir-treated HFD and control groups. Feeding of cefdinir microsphere sustained lactobacilli and bifidobacteria and significantly decreased (p < 0.05) the number of Enterobacteriaceae induced by HFD. Experimental evidences demonstrated that the effectiveness of pH-specific cefdinir microsphere on reducing insulin resistance and development of metabolic changes in high-fructose-fed rats and suggested that it may be a promising therapeutic agent in treating type 2 diabetes. Intestinal-targeted antibiotic delivery needs to be further explored for its therapeutic applications.

omnicef 80ml dosage 2016-12-16

This comparative study determined the effect of blood on the antienterococcal activities of the newer cephalosporins. Standardized disk diffusion susceptibility tests were performed with 57 buy omnicef strains of enterococci (30 Enterococcus faecalis strains) on Mueller-Hinton agar with and without 5% sheep blood supplementation. Twelve cephalosporins representing five different structural groups (based on the 7-alpha position substitution) were tested. The greatest frequency of activity enhancement by blood was observed with cefdaloxime and cefdinir (7-alpha hydroxyimino group) against E. faecalis. Cephalosporins with a 7-alpha methoxyimino group (cefpodoxime, cefepime, and cefpirome) had marked increases in zone diameters (3 to > 9 mm) when tested with the blood supplement. Cephems with 7-alpha amino or carboxy substitutions did not demonstrate any enhanced activity. Awareness of this phenomenon is important for the interpretation and accuracy of cephalosporin susceptibility testing.

omnicef liquid dosage 2017-08-12

We studied pharmacokinetics and clinical effects of cefdinir (CFDN), a newly developed oral cephalosporin, and the following results were obtained. 1. Pharmacokinetics of CFDN in 2 patients were investigated. The 2 patients with ages of 8 years (36.5 kg, body weight) and 6 years (26.5 kg, body weight) were administered with 3 mg/kg of fine granules of buy omnicef CFDN on empty stomachs. Peak plasma levels of CFDN were 0.85 microgram/ml in one patient and 0.56 microgram/ml in the other. The 8-hour urinary recovery rate was 21.6% of the administered dose in one and was not calculable in the other. 2. Clinical effects of CFDN were studied in 25 children with various infectious diseases: 11 with acute pharyngitis, 1 with acute tonsillitis, 2 with acute laryngitis, 3 with acute bronchitis, 2 with acute bronchopneumonia, 4 with scarlet fever, 1 with acute otitis media, 1 with acute lymphadenitis. The efficacy rate was 96% (24/25), and the bacteriological eradication rate was 83.3% (10/12). 3. No side effects were noted. Clinical laboratory test values were investigated in 14 patients. There were no seriously abnormal laboratory test findings except a slight elevation of eosinophile and GPT.

omnicef capsules 2017-11-30

Although the majority of Fusobacterium strains were resistant to erythromycin, azithromycin, and telithromycin, the remaining antibiotics demonstrated a high level of antimicrobial activity. P. micros and Porphyromonas species exhibited high susceptibility to all antibiotics tested in this study. In the case of Prevotella species, resistance to amoxicillin occurred in 34% of isolates and all of these resistant strains were found to produce beta-lactamase. Susceptibility of Prevotella strains buy omnicef to cefaclor, cefuroxime, cefcapene, cefdinir, erythromycin, azithromycin, and minocycline was found to correlate with amoxicillin susceptibility. Amoxicillin/clavulanate, telithromycin, clindamycin, and metronidazole exhibited high antimicrobial activity even against amoxicillin-resistant strains of Prevotella species.

omnicef capsule 2016-01-02

Vancomycin resistant and multi-drug-resistant enterococci are the major emerging pathogens buy omnicef in surgical, neonatal, and tertiary care units.

omnicef o tablet 2015-05-15

For conditions such as acute otitis buy omnicef media, in which antibiotic penetration into middle ear fluid (MEF) may be slow or limited, antibiotic plasma levels may not reflect the concentrations at the site of infection that are relevant to clinical outcome. In such cases, a model is needed that will enable prediction of the time course of unbound, pharmacologically active antibiotic levels in MEF. We describe the use of microdialysis as a sampling tool for measurement of unbound antibiotic concentrations in the MEF of the awake, freely moving chinchilla. Results of studies of MEF penetration of the beta-lactam antibiotic, cefdinir, with use of this technique are also described. Preliminary results of studies of the penetration of antibiotics into MEF of the chinchilla appear consistent with clinical findings and suggest that the chinchilla microdialysis model may prove to be a useful tool for predicting antibiotic efficacy in patients.

omnicef oral dose 2016-03-03

Acute otitis media (AOM) is treated with antibiotics in the United States, but the changing distribution of bacterial pathogens that cause the disorder can present physicians buy omnicef with several challenges. Most physicians treat AOM empirically, and their treatment choice should target Streptococcus pneumonia, nontypeable Haemophilus influenzae, and Moraxella catarrhalis, as those bacteria are most often isolated in AOM. First-line treatment for new onset AOM remains amoxicillin (80-90 mg/kg/d, divided twice daily). For persistent or recurrent AOM, guidelines recommend high-dose amoxicillin-clavulanate, cefdinir, cefprozil, cefpodoxime, cefuroxime, or ceftriaxone. Improved diagnosis and optimizing the choice of therapy by considering in vitro and in vivo efficacy of the different antibiotics will improve patient outcomes. Improved patient outcomes will result in fewer AOM episodes, decreased antibiotic resistance, and reduced direct and indirect health care costs.

omnicef 250 dosage 2015-05-22

MIC values of cefdinir against 380 strains were determined with E-test method and compared with those of cefaclor. buy omnicef

omnicef alcohol 2015-05-13

The mucoadhesive microcapsules were prepared by using various concentrations of three different mucoadhesive polymers, namely, chitosan, Carbopol 934P, and methyl cellulose as wall materials and cefdinir as the core material employing orificeionic gelation method. The prepared microcapsules were characterized by scanning electron microscope (SEM) and Fourier transform infrared spectrometry (FT-IR). The prepared microcapsules were found to be spherical with particle size ranging from 765 buy omnicef ±20 to 985±10 μm and encapsulation efficiencies in the range of 55%-92%. The formulation containing Carbopol 934P as mucoadhesive polymer was found to be best with particle size 946±10 μm. The ex vivo wash-off test showed that the mucoadhesion after 1 h was 80% and the in vitro drug release was extended for more than 12 h. FT-IR spectra indicate that there was no interaction between drug and the polymers used in the formulation. Cefdinir is better absorbed from the upper part of the gastrointestinal tract, it suffers from low oral bioavailability (20-30%), shorter biological half-life (1-2 h), and less transit time. Thus, it can be concluded that microcapsules prepared using Carbopol 934P have promising properties for use as mucoadhesive carrier to increase the residence time of cefdinir.

omnicef suspension dosage 2015-08-20

High performance liquid chromatography tandem mass spectrometry (HPLC MS) has been widely used for β-lactam antibiotics determination. However, its Neurontin Dosage application to identify impurities of these frequently used drugs is not sufficient at present. In this job, characteristic profiles of the collision induced dissociation (CID) spectra of both β-lactams and ring-opened β-lactams were extracted from the MS data of six β-lactam antibiotics and their forty-five impurities, and were confirmed by the MS data reported in the literature. These characteristics have been successfully applied to rapid differentiation of β-lactam and ring-opened β-lactam impurities in cefixime, cefdinir, and cefaclor. However, these characteristic profiles can only be obtained under low activating voltage. They did not display in the high energy activated CID spectra. Diagnostic fragmentations for determining the localization of double bond and substituents on the thiazine ring and the side chain were also observed. In addition, several characteristic fragmentations are hopeful to be used to differentiate the configurations of C-2 on the thiazine ring of ring-opened impurities, which is generally disadvantageous of mass spectrometry. Taken together, forty-five impurities were identified from the capsules of cefixime, cefdinir, and cefaclor.

omnicef child dose 2015-10-22

Acute bacterial sinusitis (ABS) is an extremely common problem in both children and adults. There are three clinical presentations of acute sinusitis: (1) onset with persistent symptoms (nasal symptoms or cough or both for > 10 but < 30 d without evidence of improvement); (2) onset with severe symptoms (high fever and purulent nasal discharge for 3-4 consecutive days); and (3) onset with worsening symptoms (respiratory symptoms, with or without fever, which worsen after several days of improvement). Images to confirm the presence of acute sinusitis are necessary in older children (> 6 years) and adults to enhance the certainty of diagnosis. The predominant bacterial species that are implicated in acute sinusitis are Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis in children. In the last decade, there has been an increasing prevalence of penicillin-resistant S. pneumoniae, and beta-lactamase-producing H. influenzae and M. catarrhalis. Although there has been some controversy in the literature regarding the effectiveness of antibiotics in the treatment of ABS, most studies in which the diagnosis of acute bacterial sinusitis is confirmed with images and appropriate anti-biotics are prescribed show superior outcomes in recipients of antibiotics Plavix Drug Interactions . Therapy may be initiated with high-dose amoxicillin or amoxicillin-clavulanate. In penicillin-allergic patients or those who are unresponsive to amoxicillin, amoxicillin-clavulanate is appropriate. Alternatives include cefuroxime, cefpodoxime, or cefdinir. In cases of serious drug allergy, clarithromycin or azithromycin may be prescribed. The optimal duration of therapy is unknown. Some recommend treatment until the patient becomes free of symptoms and then for an additional 7 d.

omnicef and alcohol 2016-08-17

Streptococcus Lanoxin Liquid Dosage pyogenes was eradicated in 201 (90%) of the 224 patients receiving cefdinir and 155 (72%) of the 216 patients receiving penicillin V (95% confidence interval [CI], 10.7%-25.1%; P < .001). The clinical cure rates were 92% and 91% in the groups receiving cefdinir and penicillin V, respectively (95% CI, -4.5% to 6.1%; P = .80). Adverse events, regardless of the opinion of the investigator about their relationship to the study medication, occurred in 12.5% of the patients receiving cefdinir and 13.6% of the patients receiving penicillin V (P = .69).

omnicef 300 dosage 2016-04-09

Cefdinir is a new, extended-spectrum, orally active, third-generation cephalosporin that is resistant to bacterial beta-lactamase production. To evaluate efficacy and safety of the antibiotic in maxillary sinusitis, its use was compared with amoxicillin/clavulanate (amox/clav), which is a well-accepted beta-lactamase-resistant antibiotic. In this investigator-blinded multicenter phase III clinical study, 569 patients were randomly assigned to one of three treatment regimens: one daily dose of cefdinir 600 mg (OD), cefdinir 300 mg every 12 h (BD), and amox/clav 500/125 mg Nexium Flea Pills every 8 h. All antibiotics were administered orally for 10 days. Maxillary sinusitis was documented by typical clinical signs and symptoms and was confirmed by X-ray imaging. Before treatment, the genus and species of any pathogens were determined from sinus aspirates. Cultures were tested for beta-lactmase production and in vitro resistance to cefdinir and amox/clav. The effectiveness of antibiotic treatment was evaluated 7-14 days after therapy and whether or not recurrent clinical symptoms or persistent infection was determined 21-35 days post-therapy. The appearance of any adverse events was classified as associated or not associated with the medication of the study. Present findings showed that the in vitro susceptibility of pathogens to cefdinir and amox/clav was similar. Cefdinir OD or BD was therapeutically as effective as or better than amox/clav, although cefdinir BD was not as useful as amox/clav clinically. Cefdinir OD and BD and amox/clav were well tolerated. The statistical incidence of adverse events was the same among the three treatment groups, although cefdinir OD treatment had significantly fewer treatment discontinuations due to adverse events than BD and amox/clav.

omnicef dosage calculator 2017-04-13

Acute otitis media (AOM) is not only the most common bacterial infection in children in the United States, it is also the most common indication for the prescription of antibiotics. Unfortunately, antibiotic resistance to pathogens (Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis) typically causative of AOM, continues to increase. More than 30% of the beta-lactamase producing H. influenzae are resistant to amoxicillin and virtually all strains of M. catarrhalis are beta-lactamase-positive. The emergence of multidrug-resistant strains, particularly S. pneumoniae, complicates the management of AOM and increases the risk for treatment failure. Because of growing resistance, the Centers for Disease Control and the American Academy of Pediatrics promote the judicious use of antibiotics in the treatment of AOM. Their recommendations emphasize the importance of distinguishing AOM from otitis media with effusion, minimizing the Bactrim Cost use of antibiotics, and discerning between first- and second-line antibiotics in the treatment of simple uncomplicated AOM versus non-responsive/recurrent AOM. Because spontaneous cure rates are lower in complicated AOM and AOM secondary to S. pneumoniae infection, antibiotic therapy remains an appropriate treatment option for most children with AOM. When amoxicillin, the treatment of choice in AOM, is not effective or not tolerated in children, the prescriber should consider an alternative that displays not only excellent antimicrobial activity against the suspected pathogens, but also characteristics, such as convenient dosing, tolerability, and palatability, that promote compliance and adherence in children. The cephalosporins offer an alternative to penicillins. Cephalosporins such as cefuroxime axetil (second-generation) and cefdinir and cefpodoxime proxetil (third-generation), offer a broad spectrum of activity and are approved for use in a convenient once- or twice-daily dosing schedule, thus increasing the likelihood of compliance with the full course of therapy. Cefdinir is a possible second-line alternative to amoxicillin for children with AOM, particularly among children who are likely to be noncompliant with a two- to three-times-daily dosing schedule, and those instances where there is a high likelihood for, or a known infection with an amoxicillin-resistant pathogen.

omnicef kids dose 2015-05-18

To evaluate prevalence of ss-lactamase nonproducing ampicillin-resistant (BLNAR) strains of Haemophilus influenzae with mutations in ftsI gene encoding penicillin-binding protein 3 (PBP3) among children with Cymbalta Buy It otitis media.

omnicef brand name 2015-06-16

Cefdinir is Motrin Overdose Toddler an advanced-generation, broad-spectrum cephalosporin antimicrobial agent that has been approved for the treatment of community-acquired pneumonia, acute bacterial exacerbations of chronic bronchitis, acute maxillary sinusitis, pharyngitis/tonsillitis, acute bacterial otitis media, and uncomplicated skin and skin-structure infections in adult and pediatric patients.

omnicef dosing 2017-07-28

FK482 is an oral aminothiazolyl hydroxyimino cephalosporin with a C-3 vinyl group. Its activity was compared with those of cephalexin, cefuroxime, cefixime, and amoxicillin-clavulanate. FK482 inhibited 90% of Staphylococcus aureus isolates at 1 micrograms/ml and 90% of Streptococcus pyogenes, Streptococcus agalactiae, and Streptococcus pneumoniae isolates at less than or equal to 0.012 micrograms/ml, superior to cephalexin and cefuroxime and similar to cefixime. It did not inhibit oxacillin-resistant S. aureus. FK482 inhibited 90% of Enterococcus faecalis isolates at 8 micrograms/ml. Although 90% of Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Salmonella species, and Shigella species isolates were inhibited by less than or equal to 2 micrograms/ml, FK482 was less active than cefixime against Citrobacter, Enterobacter, Morganella, Serratia, and Providencia species, Buy Viagra Locally with MICs for many isolates of greater than 8 micrograms/ml. FK482 inhibited Haemophilus influenzae and Neisseria gonorrhoeae at concentrations comparable to that of cefixime and superior to those of cephalexin and cfaclor. Bacteroides and Pseudomonas species were resistant. FK482 was not hydrolyzed by the TEM-1 and TEM-2 beta-lactamases but was hydrolyzed by TEM-3 and the Proteus vulgaris enzyme. It had a high affinity for chromosomal beta-lactamases.

omnicef 200 mg 2015-03-03

This study was undertaken to provide data on current levels of resistance among common community-acquired bacterial species to 7 betalactam antimicrobial agents (including the combination product amoxicillin/clavulanate), azithromycin, and clarithromycin, determined through application of the Allegra 30 Mg PK/PD breakpoints based on time-above-MIC for the beta-lactams and the nonazalide macrolide clarithromycin, and on 24-hour serum area under the curve divided by MIC for the azalide macrolide azithromycin.

omnicef overdose symptoms 2015-01-16

Against H. influenzae, the Antabuse Cost antibacterials most likely to achieve optimal in vivo exposures in children are cefpodoxime, ceftibuten, and amoxicillin/clavulanic acid.