This decision aid can help you to decide whether or not to take a medicine called tamoxifen to reduce your chance of developing breast cancer. It is not intended for women who have had breast cancer in the past. Your decision depends on several things that this information will help to explain. Different women will feel that some of these things are more important to them than others, so it is important that you make a decision that is right for you. This decision aid is designed for you to work through with your healthcare professional. You might also find it helpful if you want to talk things over with your family or friends.