Leucovorin Injection - Calcium Leucovorin (50mg) - 5ml in 1 vial

About this Medicine

Leucovorin Injection, specifically Calcium Leucovorin 50mg/5ml, is a vital prescription medication categorized as a folic acid derivative. This specialized injectable solution plays a crucial role in various medical treatments, primarily known for its ability to counteract the adverse effects of certain chemotherapy agents. Unlike folic acid itself, leucovorin does not require reduction by dihydrofolate reductase, making it immediately available to the body's cells. Its primary function is often referred to as "leucovorin rescue," where it is administered after high-dose methotrexate therapy. Methotrexate, a potent chemotherapy drug, works by inhibiting an enzyme necessary for DNA synthesis, thereby targeting rapidly dividing cancer cells. However, it can also harm healthy rapidly dividing cells, such as those in the bone marrow and gastrointestinal tract. Leucovorin provides the necessary reduced folate, bypassing the methotrexate block and allowing healthy cells to recover and synthesize DNA, thereby mitigating severe side effects without compromising the cytotoxic effect on cancer cells. Beyond its role in methotrexate rescue, Leucovorin is also used in combination with fluorouracil to enhance the effectiveness of fluoropyrimidine chemotherapy in treating certain types of colorectal cancer. It acts as a biochemical modulator, stabilizing the binding of fluorouracil metabolites to thymidylate synthase, which is critical for DNA synthesis. This synergistic action improves the efficacy of the chemotherapy regimen. Furthermore, Leucovorin may be indicated in treating megaloblastic anemia due to folate deficiency when oral therapy is not feasible or effective. As a prescription-only medication, Leucovorin Injection must be administered and monitored by a qualified healthcare professional in a clinical setting, ensuring patient safety and optimal therapeutic outcomes.