Hello all, my mom just got diagnosed ET, and I found this forum as I was researching online. She is 65 and the doctor put her on Hydrea 1000mg daily which helped lower her platelet count from 1,100,000 to about 300,000. Now she is on a lower dose 500mg daily. I saw several mentions on the forum that they had no side effects while taking Hydrea, but my mom’s hair is falling out and her nails turned black. I am wondering if anyone is going through the same. Best wishes to all.