Aztreonam PLUS Avibactam – A New Bright Star in the Night Sky

Looking at the molecular structure of ceftazidime (CTAZ) and aztreonam (ATM), the differences are clear, and so are the similarities: ATM does not have the cephem ring structure of CTAZ, only the 4-member beta-lactam ring.  However, the side chains are identical in both CTAZ and ATM which explains the overlapping Continue reading Aztreonam PLUS Avibactam – A New Bright Star in the Night Sky

MRSA Fluoroquinolones – An Interesting Bunch Playing a High-Stakes Game

Fluoroquinolones (FQ) of the ofloxacin/ciprofloxacin generation were mainly active against Gram-negative bacteria, distinguishing themselves as cidal IV/PO drugs with high potency against most lactose- and non-lactose fermenters.  They were excellent against problem pathogens like P. aeruginosa, had excellent efficacy against Salmonellae, the Gonococcus and other Neisseriae, and you could count on them for Continue reading MRSA Fluoroquinolones – An Interesting Bunch Playing a High-Stakes Game

Avycaz Approval and Labeling Restrictions

On Feb 25, 2015 the combination of ceftazidime/avibactam (Avycaz) was approved by FDA for cUTI and cIAI infections in patients ‘who have limited or no alternative treatment options’.  As a QIDP drug, Avycaz received priority review.  Its label states that it is indicated for infections caused by pathogens proven or ‘suspected to Continue reading Avycaz Approval and Labeling Restrictions