How long after stopping NDT to run a Thyroid panel?

Gianluca

Well-Known Member
I was on one grain of NP Thyroid, and started to cut back by 1/4s, till I was using just half grain and feeling fine, so I thought after all I may not need any Thyroid, and decided to stop all 10 days ago, see how it goes. How log should I wait for my endogenous Thyroid to come back 100% and run a Thyroid panel see what the numbers are now? is two weeks enough?
 
I was on one grain of NP Thyroid, and started to cut back by 1/4s, till I was using just half grain and feeling fine, so I thought after all I may not need any Thyroid, and decided to stop all 10 days ago, see how it goes. How log should I wait for my endogenous Thyroid to come back 100% and run a Thyroid panel see what the numbers are now? is two weeks enough?
I was always told, when adjusting thyroid meds. Wait 6 weeks before having labs.
 
I have heard really bad things about NP Thyroid. You may end up not feeling any different because apparently many people claim that particular brand is completely ineffective
 

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⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

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Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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