I am 50 and have cardiac problem along with GERD, I have been having a cycle every 16 to 18 days would not worry about it except I am on plavix and been experience extreme anemia to the point the hemoglobin was 7 and the ferrtin non-existence had to have a blood transfusion and IV iron, I am not sure if the plavix or one of the other meds I am on is causing the period to be so frequent I take norvacs, tekturnia, troprol XL, imdur, spironolactone, crestor, kapidex, carafate, and asprin (my cycles have been exteremly heavy to the point I go thru 15 to 20 maxi pads in a day for three to four days, and at least one soak everything I'm wearing. Is the medication causing it and is there something that could be done to decrease the flow. I was anemic before being put on the medications.