I had never heard of multi dosing either. I take my thyroid medication first thing in the morning, since you are suppose to take them on an empty stomach. That is the only time my stomach is empty. I went to the doctor for bloodwork, so will find out tomorrow where I am. Last time I was at 3.88 and he said I was normal.....He is not overly helpful with my thyroid issues. I will probably have to go back to the endo, which I hate to do.