Due to a change in my medical provider I am required to use a mail order script supplier. I was totally stunned when I received my first scripts from the company and found out they had switched my Synthroid to L-Thyroxine without discussing it with me. According to all that I have read, there is the hair loss issue and possible weight gain. I did not "opt in" to this. Where are my rights as a consumer to decide what medications I take and what side effects I can or cannot live with. I have been taking Synthroid for a few years now without any problems. I went through the hair loss thing in the beginning and I don't want to go thru it again. Don't my feelings count?