Riparin-B as a Potential Inhibitor of AdeABC Efflux System from .

is an important opportunistic pathogen that causes serious health-related infections, especially in intensive care units. The present study aimed to investigate the antimicrobial activity of Riparin-B (Rip-B) alone and in association with norfloxacin against multidrug-resistant clinical isolates of . For this, the minimum inhibitory concentrations were determined by the microdilution method.