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Chemotherapy 101

The Basics of Chemotherapy

By Lisa Fayed, About.com

Updated: October 20, 2005

About.com Health's Disease and Condition content is reviewed by our Medical Review Board

Chemotherapy is a treatment option for many cancer patients. Many times, chemotherapy is a combination of drugs referred as "anti-cancer" medications.

How Does Chemotherapy Work

We know that cancer is caused by the out of control multiplication of cells. When these cells break free from the original site, the cancer metastasizes, or spreads. Chemotherapy interrupts the process of the multiplication.

How is Chemotherapy Given?

It is administered intravenously, in a pill form, by injection, or even applied to the skin. The frequency or duration of chemotherapy all depends on the type of cancer you have. It varies from patient to patient and often the treatment schedule is according to successes in trial studies.

Is Chemotherapy Expensive?The cost of chemotherapy can depend on what medication you are prescribed. Some pill form medications cost up to $16 a pill. This can be costly if you are prescribed frequent dosages. Check with your doctor to see if a medication can be prescribed that your insurance company covers. If not, the hospital social worker can refer you to agencies that may be able to provide assistance or grants.

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