.

AZTREONAM AND WARFARIN AND OTHER ORAL ANTICOAGULANTS

Medical Diagnosis and Drugs, Medications
Aztreonam occasionally causes a prolongation in prothrombin times, which in theory might possibly be additive with the effects of conventional anticoagulants.
The clinical importance of this interaction is unknown, but bear it in mind in case of an increased response to anticoagulant treatment.
(15)