antibacterial composition for medical anvendning - 6 / d (-) - alpha - (4 - ethyl - 2,3 - dioxo - 1 - piperazinylkarbonylamino) phenylacetamido / penicillansyra and a beta laktamasinhiberande penicillin or cephalosporin

摘要

An antibacterial composition for medical use comprising 6-[D(-)- alpha -(4-ethyl-2,3-dioxo-1-piperazinylcarbonylamino)phenylacetamido]penicil lanic acid or a pharmaceutically acceptable salt thereof and a beta -lactamase-inhibiting penicillin or cephalosporin. The composition exhibits synergistic effect which is much greater than the sum of antibacterial effects of each component used alone.