RESUMO
Ceftriaxone is used in wide range of day to day microbial infections in clinical practice3. Despite the incumbent drug regulating authority in Pakistan, there is scanty literature comparing the anti-microbial efficacy of different available br and s of ceftriaxone. Objectives: To know the in-vitro activity of various br and s of ceftriaxone against bacteria most commonly isolated from surgical site infection [SSI]. A comparison of five days cost of these br and s will also be done. Design: Experimental study. Period: Feb 2013 to Aug 2013 Setting: Surgical "C" unit Lady Reading Hospital [LRH] in collaboration with departments of pharmacology Khyber Girls Medical College [KGMC] and microbiology department of Lady Reading Hospital Peshawar. Material and Methods: Isolates of five bacteria i.e. Staphylococcus aureus, Proteus mirabilis, Escherischia coli, enterobacter Spp, and Klebsiella pneumoniae, found sensitive to ceftriaxone were grown on 50 slops each and the zone of inhibition was checked for each of the ten br and s of ceftriaxone. Results: The zones of inhibitions of different br and s of ceftriaxone against the above mentioned bacteria were not significantly different. The cost of therapy was significantly different for ten br and s. Conclusions: Various br and s of ceftriaxone of variable cost had no influence on their activity against bacteria involved in SSI.