Calcium leucovorin is a clinically important folinic acid derivative with wide medical and pharmaceutical application values. It can effectively resist the toxic side effects caused by methotrexate chemotherapy drugs, and is widely used for rescue treatment after high-dose methotrexate medication in tumor treatment. It can also supplement folic acid in human body, treat various megaloblastic anemia caused by folic acid deficiency, and assist in the treatment of intestinal malabsorption and malnutrition anemia. In pharmaceutical synthesis industry, it acts as core raw material and pharmaceutical intermediate for preparing various anti-tumor and hematological system therapeutic drugs. It is also commonly used in biochemical research, cell culture medium preparation and related pharmacological mechanism research. With stable medicinal effect and high biological activity, it occupies an important position in oncology adjuvant therapy and clinical blood disease treatment field.

This product belongs to pharmaceutical grade biochemical raw material with low toxicity but still needs standardized operation protection. Inhalation of its fine powder may cause mild respiratory tract discomfort and nasal itching, so operators shall wear dust-proof masks and keep operating environment well ventilated. Long-term skin contact may cause local dryness and slight allergic irritation, it is necessary to wear isolated protective gloves and clean skin with clean water in time after contact. Once the powder enters eyes accidentally, it will produce obvious stinging discomfort, immediately use plenty of flowing clear water to continuously rinse the eye part for more than fifteen minutes and seek medical inspection in time. Accidental excessive intake will easily cause gastrointestinal discomfort such as nausea, dizziness and abdominal distension, stop eating immediately and take symptomatic relief measures. This product is easy to deteriorate under strong light and high temperature, so it must be kept away from light and heat source during storage. It shall be stored separately from daily food and living goods. All discarded materials shall be treated in accordance with medical chemical waste disposal standards to avoid unnecessary safety risks.