Is Amoxicillin Better Than Ampicillin?

Is Amoxicillin Better Than Ampicillin? Is ampicillin or amoxicillin better? Both drugs can be effective when used on their own; however, ampicillin is more susceptible to drug resistance, so amoxicillin is more widely prescribed. Why is amoxicillin preferred over ampicillin? The in vitro activity of amoxicillin is similar to that of ampicillin. Ampicillin usually is