Not available in the U.S.
Nemonoxacin
TAIGEXYN
What it isA non-fluorinated C-8-methoxy quinolone antibacterial that inhibits bacterial DNA gyrase and topoisomerase IV.
Why this oneApproved in Taiwan and China (not the US) for community-acquired pneumonia, with activity extending to MRSA and some quinolone-resistant Gram-positive organisms.
What limits itAs a quinolone it can prolong the QT interval and carries class risks of tendinopathy and CNS effects, and chelating cations reduce its oral absorption.
NO BOXED WARNINGS
Principal riskNo FDA boxed warning.