Cytarabine has a therapeutic effect on some leukemias; the drug is a chemotherapeutic agent that may trigger side effects of anemia and leukopenia. Cytarabine is a commonly used clinical chemotherapeutic drug with antimetabolic effects and is used in the treatment of acute non-lymphoblastic leukemia, acute lymphoblastic leukemia, chronic myeloid leukemia, high-risk leukemia, refractory and relapsed acute leukemia. With the use of this medication, hematologic changes such as anemia, leukopenia, thrombocytopenia, reticulocytopenia; viral, bacterial, fungal, parasitic, or putrefactive infections, some of which may be very serious and sometimes fatal, may occur. In addition to these adverse reactions, fever, myalgia, bone pain, occasional chest pain, and maculopapular rash may occur. The drug is contraindicated in cases of drug allergy, ongoing use of other drugs that cause bone marrow suppression, degenerative encephalopathy, toxic encephalopathy, ongoing treatment with methotrexate or ionizing radiation. If you need to use cytarabine, please under the guidance of a professional physician, unauthorized use of the drug is prohibited.