Cytarabine or cytosine arabinoside (Cytosar-U or Depocyt) is a chemotherapy agent used mainly in the treatment of cancers of white blood cells such as acute myeloid leukemia (AML) and non-Hodgkin lymphoma.It is also known as Ara-C (ArabinofuranosylCytidine).It kills cancer cells by interfering with DNA synthesis. 1.Why is this medication prescribed? Cytarabine is used alone or with other chemotherapy drugs to treat certain types of leukemia (cancer of the white blood cells), including acute myeloid leukemia (AML), acute lymphocytic leukemia (ALL), and chronic myelogenous leukemia (CML). Cytarabine is also used alone or with other chemotherapy drugs to treat meningeal leukemia (cancer in the membrane that covers and protects the spinal cord and brain). Cytarabine is in a class of medications called antimetabolites. It works by slowing or stopping the growth of cancer cells in your body. 2.How should this medicine be used? Cytarabine comes as a powder to mixed with liquid to be injected intravenously (into a vein), subcutaneously (under the skin), or intrathecally (into the fluid-filled space of the spinal canal) by a doctor or nurse in a medical facility. Your doctor will tell you how often you will receive cytarabine. The schedule depends on the condition you have and on how your body responds to the medication. 3.What’s the side effects? One of the unique toxicities of cytarabine is cerebellar toxicity when given in high doses, which may lead to ataxia. Cytarabine may cause granulocytopenia and other impaired body defenses, which may lead to infection, and thrombocytopenia, which may lead tohemorrhage. Toxicity: leukopenia, thrombocytopenia, anemia, GI disturbances, stomatitis, conjunctivitis, pneumonitis, fever, and dermatitis,Palmar-Plantar Erythrodysesthesia. Rarely, myelopathy has been reported after high dose or frequent intrathecal Ara-C administration. To prevent the side effects and improve the therapeutic efficiency, various derivatives of this drugs (including amino acid, peptide, fatty acid and phosphates) have been evaluated, as well as different delivery systems.
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