I've received in the mail today, friday 22nd, 2009, a consent form to signed a return to the FIBRO AND FITIGUE CENTER where i have been going for blood work and treatment, my dr. wanted to start me on BIO-IDENTICALT T3, L-triiodoyjyronine. At this point, if i have to sign a consent form, then this doesnt sound save. has anyone taken this drug. its for low thyroid, its a thyroid hormone supplement. my sisters are AGAINST TAKEN IT. I am scared at this point, any help on this matter will be considered.