NCIt definition : A semi-synthetic beta-lactamase inhibitor. The beta-lactam ring of sulbactam irreversibly
binds to beta-lactamase at or near its active site, thereby blocking enzyme activity
and preventing metabolism of other beta-lactam antibiotics by the enzyme. Combining
this agent with a beta-lactamase susceptible antibiotic, such as penicillins or a
cephalosporin, to treat infections caused by beta-lactamase producing organisms, results
in a decreased turnover rate of the beta-lactamase sensitive antibiotic and enhances
its antibacterial activity.;