Dear tmc123, Taxol and taxotere are in the same family of drugs (the taxanes) and both are used in the treatment of breast cancer. The difference in terms of side effects may make one more tolerated in an individual situation than the other. Here is a link to a website www.chemocare.com. You can look up both medications for information regarding the medications, how they work, side effects, as well as suggestions for management of side effects.