b12 injections for fluoroquinolone toxicity 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) 5-AMINO-1MQ (30 CAPSULES) – Sold per Bottle:30 mL retailer
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