Gentamicin is an antibiotic which has a relatively broad antibacterial spectrum.

These agents have the broadest antibacterial spectrum compared to other β-lactam classes such as penicillins and cephalosporins.

Other antibiotics with broad antibacterial spectra are cephalothin, carbenicillin, amoxicillin, cefamandol, tobramycin, and vancomycin.

Nifuratel appears to have a broad antibacterial spectrum of action and is effective against Chlamydia trachomatis and Mycoplasma spp.

The broad antibacterial spectrum and the high in vitro activity are reflected by high in vivo efficacy in experimental infections.