Clavulanic acid B lactam(B lactamases inhibitor) binds strongly to B lactamases inhibits B lactamases activity -no direct effects on bacteria limited potency as antibiotic used in conjunction with other B lactams• β lactam (β lactamases inhibitor) • binds strongly to β lactamases – inhibits β lactamases activity –No direct effects on bacteria • limited potency as antibiotic • used in conjunction with other β lactams Clavulanic acid 19