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Thyroid UK
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New to levothyroxcin

Hi i am 33 and just had a total thyroid and some lymph gland removed in october 2017 due to cancer, i am on 200micrograms aday of levothyroxcin its making me wont to do nothing unfunction and moody dry skin silly eating habbits weaight gain and cannot sleep, i have taken moor the last to days and felt better am i ok to carry on doing so,i am new to the meds not having a thryroid problem b4 and my doctors are so long drawn out is there any advise for me please

2 Replies

After thyroid cancer i always understood they gave you T3 /liothyronine too

Just levothyroxine is often simply not enough when you have no thyroid


Just increasing the Levothyroxine can actually make you feel worse.

You need to stick to exactly same dose every day and get full Thyroid blood test after 6 weeks on constant dose

Also ask GP to test vitamin D, folate, ferritin and B12

Post your results and ranges on Thyroid and vitamin results and members can advise

Dr Toft, past president of the British Thyroid Association and leading endocrinologist, states in Pulse Magazine,

"The appropriate dose of levothyroxine is that which restores euthyroidism and serum TSH to the lower part of the reference range - 0.2-0.5mU/l.

In this case, free thyroxine is likely to be in the upper part of its reference range or even slightly elevated – 18-22pmol/l.

Most patients will feel well in that circumstance. But some need a higher dose of levothyroxine to suppress serum TSH and then the serum-free T4 concentration will be elevated at around 24-28pmol/l.

This 'exogenous subclinical hyperthyroidism' is not dangerous as long as serum T3 is unequivocally normal – that is, serum total around T3 1.7nmol/l (reference range 1.0-2.2nmol/l)."

You can obtain a copy of the articles from Thyroid UK email print it and highlight question 6 to show your doctor

please email Dionne:

Prof Toft - article just published now saying T3 is likely essential for many


Always take Levo on empty stomach and then nothing apart from water for at least an hour after. Many take on waking, but it may be more convenient and possibly more effective taken at bedtime


Many people find Levothyroxine brands are not interchangeable. Once you find a brand that suits you, best to make sure to only get that one at each prescription.

All thyroid tests should be done as early as possible in morning and fasting and don't take Levo in the 24 hours prior to test, delay and take straight after. This gives highest TSH, lowest FT4 and most consistent results