Just start off slow and work your way up. If you feel okay taking 200% of RDA, then start with that. Continue that for at least a few weeks without increasing it. Then just up it little by little. I did take half tablets some days and even did every other day for a while.

If you are really concerned you can get your thyroid checked while you are on it. All though I'd get more than just TSH checked (most doctors ONLY check the TSH) because that one number isn't very reliable.

Yeah my hair loss was crappy, but with the DMSA its much better. I posted a new pic on one of the threads the other day.