Glutathione Injection And Drip: Benefits With Key Facts Trambellir What to Pair and Avoid with Glutathione Glutathione Injection Cost, Benefits, Side Effects At first, it's subtle. A little gas from NAC. A headache after glutathione. You think you're sensitive. Then it escalates histamine spikes, oxalate overload, neurological fog. What changed? Not the sulfur. FDA highlights concerns with using dietary ingredient glutathione to compound sterile injectables FDA