Advantages of amoxicillin over ampicillin are all except ?

Ans. is 'b' i.e., Spectrum includes H. influenzae & Shigella Amoxicillin is a close congener of ampicillin; 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 diarrhea is lower. It is less active against Shigella and H. influenzae. It is now preferred over ampicillin for bronchitis, urinary infections, SABE andgonorrhoea.