Cytarabine Injection, an antineoplastic agent, is a sterile preserved solution for intravenous or subcutaneous administration and is available in 20 mg/mL (500 mg/25 mL) multiple-dose vial. Each mL contains: 20 mg Cytarabine, USP and the following inactive ingredients: benzyl alcohol 0.9% and Water for Injection q.s. The pH is adjusted with hydrochloric acid and/or sodium hydroxide to a target pH of 7.6.
Cytarabine is chemically 4-amino-1-β-D-arabinofuranosyl-2(1H)-pyrimidinone. The structural formula is:
Cytarabine is an odorless, white to off-white, crystalline powder which is freely soluble in water and slightly soluble in alcohol and in chloroform.