Glutathione Deficiency Symptoms: Is Poor Sleep Just the Beginning? Cardiology & Neurology Specialists located in Queens, Forest Hills and Brighton Beach, Brooklyn, NY Advanced Medical Care 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) Elemental Diet as a Therapeutic Modality: A Comprehensive Review Digestive Diseases and Sciences Springer Nature Link Glutathione is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic