by these criteria , pivampicillin was the best-absorbed drug , with absorption 3.0 to 3.6 times higher than that of ampicillin and 1.2 to 1.5 times higher than that of amoxycillin , whereas the absorption of amoxycillin was 2.1 to 2.9 times higher than that of ampicillin .
C0002645
amoxycillin
C0002680
ampicillin