The nurse is reviewing the medication history of a patient who will be taking a sulfonamide antibiotic. During sulfonamide therapy, a significant drug interaction may occur with which of these drugs or drug classes?

Question

Quizplus · Accepted Answer

Sulfonamides may potentiate the hypoglycemic effects of sulfonylureas in diabetes treatment and the toxic effects of phenytoin. They also enhance the anticoagulant effects of warfarin, which can lead to hemorrhage. Sulfonamides may also reduce the efficacy of oral contraceptives.

The Nurse Is Reviewing the Medication History of a Patient