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One unexpected serious adverse reaction occurred in a NAC-treated patient caused by an erroneous iv infusion rate (1.5g-loading dose-15 min followed by 7.5 g delivered over 3h15min instead of 4 h), causing chest tightness, despite stable vital signs, which was resolved by corticosteroids and discontinuation of iv NAC

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The ratio of reduced to oxidized glutathione serves as a key indicator of the cellular redox potential, with even small changes in the GSH:GSSG ratio influencing protein function by altering cysteine oxidation and disulfide bond formation (Romero-Aristizabal et al., 2014)