I have borderline underactive thyroid and high cholesterol and my doctor has told me he would like to start me on medication for my thyroid and see if this also takes my cholesterol level down ( now 7.2).
Is it true that once you start thyroxin you have to stay on it? is there any other way to balance out my thyroid? if i were to take medication for cholesterol instead then could this level out my thyroid? or is thyroxin the best choice.

well the doctor has actually left a note on the computer for the nurse to relate to me saying that i have to start medication and i have to go back later in the week to see the doctor as the nurse is not allowed to give out prescriptions and it will be discussed more then. I would just like to be more prepared and aware of my options.