“Accumulation assay data suggest that the mechanism of synergy may be due to EGCG increasing the uptake of aztreonam.”
“… aztreonam … EGCG exists [fractional inhibitory concentration indices (FICIs) 0.02-0.5], with the combination affording significantly (P=<0.05) enhanced bacterial killing, with a >3 … to restore susceptibility to aztreonam to a level equal to or below the breakpoint set by the European Committee for Antimicrobial Susceptibility Testing.”