Differentiating Sulfur Compounds: Sulfa Drugs, Glucosamine Sulfate, Sulfur, and Sulfiting Agents Should We Label Patients With a Sulfa Allergy? Lesson Learned the Hard Way Med Ed 101 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 What is glutathione and why must we protect patient access to it?