Abstract
To review the antimicrobial activity, pharmacokinetics, clinical efficacy, and tolerability of cefdinir, an expanded-spectrum oral cephalosporin. Literature was identified by a MEDLINE search (January 1983-November 1999) of the medical literature, review of English-language literature and bibliographies of these articles, and product information. Clinical efficacy data were selected from all published trials mentioning cefdinir. Additional information concerning in vitro susceptibility, safety, chemistry, and pharmacokinetic profile of cefdinir was also reviewed. Cefdinir, an oral expanded-spectrum cephalosporin, has a broad spectrum of activity against many gram-negative and -positive aerobic organisms, including Streptococcus pneumoniae, Staphylococcus aureus, Streptococcus pyogenes, Haemophilus influenzae, and Moraxella catarrhalis. Cefdinir is stable to hydrolysis by many common beta-lactamases. Cefdinir is rapidly absorbed from the gastrointestinal tract and is primarily eliminated via renal clearance of unchanged drug. The terminal disposition half-life of cefdinir is approximately 1.5 hours. Efficacy has been demonstrated in a number of clinical trials in adults and children with upper and lower respiratory tract infections (e.g., pharyngitis, sinusitis, acute otitis media, acute bronchitis, acute exacerbation of chronic bronchitis, community-acquired pneumonia) and skin and skin-structure infections. The adverse event profile is similar to that of comparator agents. Cefdinir is a second-line alternative to first-line antimicrobial agents, with convenient once- or twice-daily dosing in the treatment of upper and lower respiratory tract infections and skin and skin-structure infections. Similar to other oral expanded-spectrum cephalosporins, cefdinir has activity against common pathogens of the respiratory tract and skin and is stable in the presence of many beta-lactamases. The clinical choice of an oral expanded-spectrum cephalosporin will be based on patient acceptance, frequency of administration, and cost.
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