ECFS 2020 - Optimizing pharmaceutical care in cystic fibrosis

174    www.ecfs.eu OPTIMIZING PHARMACEUTICAL CARE IN CYSTIC FIBROSIS EVALUATION AND MANAGEMENT OF BETA-LACTAM ANTIBIOTIC DRUG REACTIONS CHAPTER 10 Ceftazidime Amoxicillin Piperacillin Aztreonam Meropenem OH O O S S H N N O O O O O NH 2 CH 3 O N H 2 N H N O H H N HO NH 2 O COOH S O O O O O N NH N H N OH S N H HO O O O S H N H H N N OH O N N N S OH HN SO 3 H O Figure 2: Structure of common antibiotics used to treat patients with CF. The semi-synthetic beta-lactam compounds share the beta-lactam ring but have modified side chains. Aztreonam differs from the other drugs in that it possesses a monocyclic beta-lactam nucleus instead of a dual ring

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