No-Nonsense Guide to Antibiotics: Dangers, Benefits & Proper UseAntibiotics can be lifesaving, but they are so often prescribed without good reason that they generate more drug side effects than any other class of medicines. On a personal level, antibiotics can cause mild to deathly side effects. Antibiotic overuse in the larger society has forced the widespread growth of drug resistant bugs, causing a global health crisis according to the World Health Organization. In this latest series of No Nonsense Guides, Dr.