We all need to follow our own doctor’s instructions, but typically we need to wait a minimum of six weeks before having more blood work. I vaguely recall that my doctor checked things a bit more frequently than that when I was first on the antithyroid drugs like methimazole, but “vague” isn’t good enough. If you have concerns, call your doctor. But it might very well be too soon to check.
Bobbi — NGDF Online Facilitator