Sunitinib (Sutent - Pfizer) and sorafenib (Nexavar - Bayer), two oral tyrosine kinase inhibitors, have been approved by the FDA for treatment of advanced renal cell carcinoma (RCC). Sunitinib is also approved for use in patients with gastrointestinal stromal tumor (GIST) who are not responding to or are intolerant of standard therapy with imatinib (Gleevec).

A variety of cancer chemotherapy drugs are used, mostly in combination, for treatment of locally advanced and metastatic esophageal, gastric and colorectal cancers. The mechanism of action, indications and adverse effects of some of these drugs are discussed in thei article.

The tables in this article list drugs used for treatment of cancer in the USA and Canada and their major adverse effects. The choice of drugs in Table I is based on the opinions of Medical Letter consultants. Some drugs are listed for indications for which they have not been approved by the US Food and Drug Administration. In some cases, such as elderly patients or those with many co-morbid illnesses, the regimen of choice might not be suitable. For many of the cancers listed, surgery and/or radiation therapy may be the treatment of choice or may also be part of the management. Anticancer...