Enhancement of tigecycline potency using efflux pump inhibitors

摘要

Disclosed herein are Efflux Pump Inhibitor (EPI) compounds that can be co-administered with antimicrobial agents for the treatment of infections caused by drug resistant pathogens. The EPI compounds are soft drugs which exhibit a reduced propensity for tissue accumulation. It is demonstrated that the EPIs can be used to increase the potency, decrease bacterial resistance and development of bacterial resistance, and increase killing effectivness of tigecycline. Also disclosed are methods of treatment and pharmaceutical compositions for co-administering tigecylcine with an EPI.