Absence of Cross Reactivity between Sulfonamide Antibiotics and Sulfonamide Nonantibiotics New England Journal of Medicine Differentiating Sulfur Compounds: Sulfa Drugs, Glucosamine Sulfate, Sulfur, and Sulfiting Agents Hives from Sulfa Allergy : r urticaria Which mutation can not handle glutathione supplements? Maybe it's the kind I bought ? Made my arms and legs swell Edit post : the reason why I began taking it was because Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification