Taxotere is a chemotherapy drug used to treat a number of cancers, especially breast cancer. Taxotere is a taxanes.  Taxanes are diterpenes produced by the plants of the genus Taxus that have a taxadiene core.
Taxanes are widely used as chemotherapy agents. Taxotere has been one of the most widely used chemotherapy drugs since it was developed in the mid-1990s. Chemotherapy drugs like Taxotere work by attacking cancer cells within the body. Taxotere was originally developed and introduced by the New Jersey pharmaceutical company Adventis which is now Sanofi-Adventis.