IM/IV use only, adjust dose as a function of creatinine clearance with 80% excreted renally unchanged, 86% protein bound
1st Generation Cephalosporins
OH
HH
N
S
H2N
O
N
O
C H3
C O2H
Indications: UTI, pharyngitis and tonsillitis due to group A b-hemolytic Streptococcus, skin and skin structure infections.
Gram(+) aerobic bacteria - limited Gram(-)
Oral use only, 10% protein bound, >90% excreted renally unchanged
One of the Top 200
Indications: Oral - Respiratory tract infections, Otitis media, skin and skin structure infections, Bone infections, GU infections, UTI;
N N
N
H
N
S
O O
N
SN
N
CO2H
S CH3
Cefazolin - Ancef®, Kefzol®, Zolicef®
Indications: Respiratory tract infections, GU infections, skin and skin structure infections, Biliary tract infections, bone and joint infections, Septicemia, endocarditits; pre-, post- or intraoperative prophylaxis. Used for staph or strep infection in patients with mild hypersensitivity to penicillins! NOT for meningitis (can’t cross BBB).