Ceftriaxone (Rocephin)is wide spectrum cephalosporin that has been used for decades
for combating infections caused by broad array of pathogens. In this study, the
antibiotic ceftriaxone from three different brands was tested for its
effectivenessagainst strains of bacteria likeStreptococcuspyrogens,
Staphylococcusaerus and Klebsiella pneumonia. The effectiveness of ceftriaxone was
estimated by measuring zone of inhibition and compared with standard disc (BD
BBLSensi-Disc 2004/09). The diameters of the inhibitory zones for all brands were
ranged from 20 to 33mm±0.5.The present study showed that there is no significant
variation amongst the different brands of ceftriaxone in term of their antibacterial
effectiveness.
Keywords: Ceftriaxone, Zone of Inhibition, antibacterial efficacy