loria

I have been on Tamoxifen since Feb. 06.  At first my cyle was regular for me 23 to 28 days, then 40 to 45 days.  Now I have not had a period for almost 8 months.  I am taking the med because of increased risk of breast cancer.  I was pre-menopausal going into the 5 yr program but now at almost 51 I could be in menopause.  I am told that if I go a full year without a cyle I will be able to take the blood test to determine if I am in menopause.  My diagnosis is ADH and would be very interested in hearing from someone who is also taking Tamoxifen for this reason.