Datis If you have a sulfur sensitivity, glutathione can be problematic. Glutathione is primarily made up of sulfur, which can cause issues for those with a sulfur sensitivity. While Glutathione is Absence of Cross Reactivity between Sulfonamide Antibiotics and Sulfonamide Nonantibiotics New England Journal of Medicine A Comprehensive Review of Sulfonamide Hypersensitivity: Implications for Clinical Practice Clinical Reviews in Allergy & Immunology Springer Nature Link This is what happens when you are allergic to Sulfa : r WTF Sulfa Allergy: Not Just a Sulfur Reaction Dr. Sheby Elsa George, Pharm D Rph. posted on the topic LinkedIn