Watch What Drugs Should Be Avoided with Sulfa Allergy?

If you are allergic to sulfa drugs, you cannot take medications that have sulfonamides like some antibiotics termed sulfamethoxazole-trimethoprim (known popularly as Bactrim or Septra). Also included are medications such as sulfasalazine, some diuretics like furosemide or hydrochlorothiazide, and some diabetes medications like glyburide. Always share your allergy history with your doctors so that they can help you stay safe from serious allergic reactions.