Side Effects Of IV Glutathione Therapy Glutathione is considered safe generally, however, the following have been documented as possible side effects: Allergic reactions Temporary abdominal discomfort (bloating, pain, etc) Introduction of harmful microorganisms or use of contaminated infusions leading to serious infections (when done by non-medical personnel) Kidney stones, Goitre (when larger than recommended doses are used) *Note that : effects of glutathione and other antioxidants are slower in alcohol and cigarette users
Pain 162 , 243252 (2021)
compared with the commercial products, the number and the positions of impurities of six batches of samples of the product are consistent with those of the commercial products, and the single impurities and the total impurities are slightly smaller than those of the commercial products

Additional caution or monitoring may be appropriate in research settings involving: Active cancer- or tumor-related research models, where antioxidant-related pathways may influence cellular-response or treatment-response mechanisms Severe asthma or hypersensitivity-prone research models, as rare sensitivity-related observations have been reported in some experimental contexts Sulfur-sensitive research models, due to Glutathione containing a thiol (sulfur-containing) group Complex hepatic-function or detoxification-related investigations, where antioxidant modulation may influence oxidative-stress or liver-related biomarkers Research conditions, research amounts, protocol duration, administration frequency, and concurrent compounds may influence tolerability observations across experimental settings
glutathione is probably the most important antioxidant you can give your body
Identification of the ferroxidase centre in ferritin