PDF) Replenishing glutathione counters ciprofloxacin induced acute liver failure via possible gene modifying mechanism Frontiers Increased expression of glutathione peroxidase 3 prevents tendinopathy by suppressing oxidative stress Fluoroquinolone Toxicity: What Works Anthrobotanica Reducing the effects of drug toxicity on glutathione metabolism ScienceDirect Leucovorin (also called folinic acid) is a folate analog and chemoprotective agent. It's used to rescue healthy cells from the toxic effects of high dose methotrexate, to enhance the effectiveness of fluorouracil (5 FU)