@carolsue1234 I asked my Doc to prescribe the 20 mg Tamoxifen she wants me on, but get it in 10 mg. pills. She knew I was wanting to do the ten, which I did for 3 weeks. Then because of headaches & lots of joint pain I decided to reduce to 5 mg. She would NOT even answer my written request for 10 mg. tabs. She does not want me on 5mg saying it's not effective. It seems she views patients as not having a say in their dosage. I'm going to make a change.