Amoxicillin-clavulanic<unk>  is a first-line treatment for many types of infections, including sinus infections, and urinary tract infections, including pyelonephritis. This is, in part, because of its efficacy against gram-positive bacteria which tend to be more difficult to control than gram-negative bacteria with chemotherapeutic antibiotics.
Clavulanic acid
Ampicillin
Piperacillin
Meropenem
Imipenem
Netilmicin
Cethromycin
Ceftazidime