cyclophosphamide, Cytoxan (cont.)

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Medical and Pharmacy Editor:

SIDE EFFECTS: Side effects of cyclophosphamide include:

Cyclophosphamide causes kidney failure, and it also may affect the heart and lungs. Cyclophosphamide suppresses production of blood cells from the bone marrow, including white blood cells (leukopenia), red blood cells (anemia) and platelets (thrombocytopenia). Leukopenia reduces the ability of the body to fight infection, thrombocytopenia impairs the ability of blood to clot, and anemia reduces the ability of blood to carry oxygen. Cyclophosphamide suppresses the immune system which may result in serious and sometimes fatal infections. Severe allergic reactions also may occur. Cyclophosphamide may cause inflammation of the urinary bladder with bleeding (hemorrhagic cystitis). This can result in lower abdominal pain from the bladder, problems urinating due to blood clots, and anemia due to loss of blood.

GENERIC AVAILABLE: Yes

PRESCRIPTION: Yes

PREPARATIONS: Powder for intravenous injection: 100, 200, 500, 1000, and 2000 mg). Tablets: 25, 50 mg.

STORAGE: Powder and tablets should be stored at room temperature, 15 C - 30 C (59 F - 86 F). Solutions prepared with bacteriostatic water are usable up to 24 hours if stored at room temperature and up to 6 days if stored in the refrigerator.

DOSING: The usual initial dose of cytoxan for adults and children is 40-50 mg/kg administered intravenously over 2-5 days in divided doses. This dose may repeated at 2-4 week intervals. The usual oral dose is 1-5 mg/kg daily. Subsequent maintenance doses are adjusted based on the response of the tumor to treatment and the side effects.

Medically Reviewed by a Doctor on 2/24/2015


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