“…To counter the threat of resistance, RF should be preserved, as its use, in combination therapy for nonmycobacterial infections, is ever more frequent. In addition to the well‐known use in prosthetic valve endocarditis (PVE) therapy (Habib et al, ) (given its ability to penetrate through biofilm), other possible uses are either currently accepted or under investigation: RF use in MRSA infections (Purrello et al, ), antibiotic regimens with RF for targeted treatment of infections caused by extensively drug‐resistant carbapenem‐resistant Pseudomonas aeruginosa (XDR CRPa)/ Acinetobacter baumannii (XDR CRAb) (Papst et al, ), minocycline/rifampicin‐impregnated central venous catheters for preventing central line‐associated bloodstream infections (CLABSIs) in the intensive care unit (ICU) setting (Bonne et al, ), and telavancin combined with rifampicin against MRSA in an in vitro biofilm model (Jahanbakhsh, Singh, Yim, Rose, & Rybak, ) are just a few examples. - for pharmacokinetic explanations, it is demonstrated that co‐treatment with RF reduces CL plasma concentrations, with a probable drug underexposure at the infection site (Curis et al, ; Join‐Lambert et al, ). This phenomenon is to be correlated with the RF ability to induce the cytochrome CYP3A4 (responsible for CL metabolism) (Sousa, Pozniak, & Boffito, ).
- for RF possible effect on the intestinal microbiota, nowadays, when considering a long‐lasting antibiotic therapy, the present authors cannot help but consider its effect on the intestinal microbiota.
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