In Ampicilline & Amoxycilline, Amoxycilline is better due to

(Better bioavailability in taken with foods) (700-701-KDT 6th)AMOXYCILLINE - is close congener of ampicillin (but not a pro drug) similar to it in all respects EXCEPT* Oral absorption is better, food does not interfere with absorption; higher and more sustained blood levels are produced* Incidence of diarrhoea is lower* It is less active against Shigella and H. influenza.