Does T4 suppress natural thyroid production ?

[eferhhth]

Does levothyroxine suppress the natural production of thyroid hormones and if so, how long does it take for the natural production to start back up again ? Is it going to take as long as testosterone production takes with AAS ?
For context, I am not hypothyroid, I had normal thyroid function before hopping on T4 needlessly for a cut. I did 100mcg a day for around 70 days or so and I want to drop it and I don't know how to as there isn't many stuff about this. Even synthroids website doesnt say anything about suppression in side effects.

Please just drop the usual comments about how stupid I was to run T4 for this and just answer the question.

 

[GuerillaPete]

I would take 75 mg for a week or two followed by 50mg for a week or two and cut out after that.
It can shut it down but not hard at that dosage.

 

[psych0ut]

Any changes in TSH, T4, and then T3 take 4 to 6 weeks for changes. Best bet is a dosage taper every 4 weeks with labs every 6. If you wait to get symptoms you are behind the ball by weeks to fix.