Erythromycin, clarithromycin, azithromycin.
Bacteriostatic not bacteriocidal, but doesn’t necessarily mean inferior.
Diarrhoea and vomiting as main side effects, not an allergy as such. True allergy is virtually unheard of! Other important issues:
- Risk of pyloric stenosis in neonates
- Prolong QT, so beware other things that also prolong QT including electrolyte disturbance