Product Description
Reference Standards &Impurity
AI Product Description
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Cefixime is a third-generation oral cephalosporin antibiotic widely utilized in clinical practice for the treatment of various bacterial infections. With the Chemical Abstracts Service (CAS) registry number 90573-31-6, its precise molecular formula is C₁₆H₁₅N₅O₇S₂. Structurally, it features a dihydrothiazine ring fused to a beta-lactam core, which distinguishes it from earlier generations and grants it enhanced stability against many beta-lactamases produced by resistant bacteria.
The primary therapeutic application of Cefixime involves managing uncomplicated urinary tract infections, otitis media, pharyngitis, tonsillitis, and bronchopneumonia caused by susceptible organisms such as *Haemophilus influenzae*, *Moraxella catarrhalis*, *Escherichia coli*, and *Klebsiella* species. It is particularly valued for its high oral bioavailability, allowing for effective systemic absorption without the need for intravenous administration. This characteristic makes it an excellent choice for outpatient care and pediatric treatments, where convenience and compliance are critical. The drug functions by inhibiting bacterial cell wall synthesis, leading to cell lysis and death. Unlike some first-generation agents, Cefixime exhibits significantly improved activity against Gram-negative pathogens while retaining reasonable efficacy against certain Gram-positive cocci.
Despite its broad utility, resistance patterns vary geographically, necessitating prudent prescribing practices to mitigate the emergence of multidrug-resistant strains. Common side effects may include gastrointestinal disturbances like diarrhea, nausea, and abdominal pain, though severe hypersensitivity reactions remain a rare but serious concern requiring immediate medical attention. Patients with known allergies to penicillins or other cephalosporins should exercise caution due to potential cross-reactivity. Overall, Cefixime remains a cornerstone in antimicrobial therapy, offering a potent, convenient, and generally well-tolerated solution for common respiratory and urogenital infections when used appropriately according to established medical guidelines.