[Usefulness of an amoxicillin/clavulanic-acid combination in respiratory tract infection: bacterial resistance and antibiotic therapy].

The continual use of antibiotics and the defence works of microorganisms have induced less activity of many antibiotics once particularly effective for their excellent therapeutic index. The association of clavulanic acid with amoxicillin, the latter a long time used for its excellent therapeutic index particularly in respiratory tract infections, has restored and some ways potentiated the once activity of the latter.