Coumarins Cephalosporins possibly enhance the anticoagulant effect of coumarins (e.g. Warfarin) - change in patient's clinical condition, particularly associated with liver disease, intercurrent illness, or drug administration, necessitates more frequent testing of INR, and dose adjustment as necessary. Probenecid Excretion of cephalosporins is reduced by probenecid (resulting in increased concentrations of drug in the blood plasma). Antacids Absorption of<unk>  is reduced by antacids. Therefore antacids should not be taken right before or at the same time as<unk> .
Cefaclor
Cethromycin
Meropenem
Aztreonam
Doripenem
Cefepime
Imipenem
Vancomycin