Description Chloramphenicol is a low molecular weight, predominantly lipophilic antibiotic and is effective against Gram-positive and Gram-negative bacteria, and also against spirochaete, salmonella, rickettsiae and chlamydiae (trachoma). The mechanism of action has been shown to be by selective inhibition of bacterial protein synthesis. Chloramphenicol is moderately effective against Proteus, Serratia, Klebsiella, Enterobacter, E. coli, Staph. […]