Hi Tonya, I am curous as to who advised you not to take Flaxseed with Tamoxifen? As it is an anti-oxident it should not interfere with Tamoxifen. It has been researched and the best advisor you can get is a Pharmacist. Grape Seed oil is very good but has not been researched enough to count as safe with Chemotherapy, whereas Flaxseed is safe. Try logging into Natural Society and you will get access to lots of info. There has been more research by Oncology groups in the states but until it is replicated with the same outcome much of what is good for you has to be checked. I hope your treatment goes well and keep smiling. Mieke (Joanna) Mieke is what my family called me but Joanna is my proper name.