<unk>  reacts with probenecid and methotrexate to decrease renal excretion. Large doses of<unk>  can increase the risk of bleeding with concurrent use of warfarin and other oral anticoagulants, possibly by inhibiting platelet aggregation.<unk>  has been said to make oral contraceptives less effective, but this has been disputed. It can be made less effective by other antibiotic, such as chloramphenicol, erythromycin, cephalosporins, and tetracyclines. For example, tetracyclines inhibit protein synthesis in bacteria, reducing the target against which<unk>  acts. If given at the same time as aminoglycosides, it can bind to it and inactivate it. When administered separately, aminoglycosides and<unk>  can potentiate each other instead.<unk>  causes skin rashes more often when given with allopurinol. Both the live cholera vaccine and live typhoid vaccine can be made ineffective if given with<unk> .<unk>  is normally used to treat cholera and typhoid fever, lowering the immunological response that the body has to mount.
Ampicillin
Meropenem
Methicillin
Resistin
Cefotaxime
Vancomycin
Erythromycin
Natamycin