What's the worst that could happen? By increasing thyroxine from 200mg to 300mg pd?

[Bypassjohn]

What's the worst that could happen? By increasing thyroxine from 200mg to 300mg pd? I was previously on 300mg of and it was reduced to 200mg pd, all that happened (my point of view) I got tired (very) put on weight & ended up with a 3xcadg, still feel weak & tired also bit "D" is at less than 50% of the minimum levels

[Lalatoot]

Think you need to look at the bigger picture John. What are your Ft3, Ft4 and TSh levels currently. What are all your vitamin levels like - are they in the top third of their ranges?

It could be that you have an absorption issue so the thyroxine is not getting into your blood stream. Or you have a conversion issue where you are not processing the T4 into the active T3.

Post blood results and lets see what we can suggest.

[greygoose]

Are you asking about increasing levo by 100 mcg in one go? I think the worst that can happen is that you will make yourself extremely ill and find yourself having to start at the bottom again. Hormones need to be increased slowly, so that the body has time to adjust and adapt. The most you should increase by is 25 mcg every six weeks.

Also, if your doctor reduced your levo by 100 mcg in one go, that was very wrong, too. And shows that your doctor knows nothing about thyroid.

Whether or not you actually need to be on 300 mcg is another question entirely. And you really need full testing to answer that:

TSH

FT4

FT3

As Lalatoot says, there could be all sorts of reasons why you needed such a high dose, but it is possible that you didn't need it at all. But, even so, it should only have been reduced by 25 mcg every six weeks.

So, when you post your blood test results, we'll be able to tell you more.

[SeasideSusie Remembering]

Bypassjohn

As already mentioned, dose changes should be only 25mcg at a time.

ended up with a 3xcadg - what is that?

also bit "D" is at less than 50% of the minimum levels - what exactly is the level, please give numbers, and is it nmol/L or ng/ml. Are you prescribed D3 by our doctor or you self supplementing - if so what dose?

[humanbean in reply to SeasideSusie]

I think cadg is a typo and it should be cabg.

CABG = Coronary Artery Bypass Graft

[SlowDragon Administrator]

If you were on 300mcg and doctor thought it too much (may or may not be true)

Dose should only be reduced by 25mcg and bloods retested 6-8 weeks later

First thing is, do you have any actual blood test results?

Ideally from BEFORE dose was reduced

And results now on 200mcg

How long have you been on levothyroxine?

How long at 300mcg dose

Reason for your hypothyroidism?

Hashimoto’s, thyroidectomy, Graves?

You are legally entitled to printed copies of your blood test results and ranges.

The best way to get access to current and historic blood test results is to register for online access to your medical record and blood test results

UK GP practices are supposed to offer everyone online access for blood test results. Ring and ask if this is available and apply to do so if possible, if it is you may need "enhanced access" to see blood results.

In reality many GP surgeries do not have blood test results online yet

Alternatively ring receptionist and request printed copies of results. Allow couple of days and then go and pick up.

For full Thyroid evaluation you need TSH, FT4 and FT3 plus both TPO and TG thyroid antibodies tested. Also EXTREMELY important to test vitamin D, folate, ferritin and B12

Low vitamin levels are extremely common, especially if you have autoimmune thyroid disease (Hashimoto's) diagnosed by raised Thyroid antibodies or AFTER DOSE REDUCTION

Ask GP to test vitamin levels

You may need to get full Thyroid testing privately as NHS refuses to test TG antibodies if TPO antibodies are negative

Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and before eating or drinking anything other than water .

Last dose of Levothyroxine 24 hours prior to blood test. (taking delayed dose immediately after blood draw).

This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip, best not mentioned to GP or phlebotomist)

Is this how you do your tests?

Private tests are available. Thousands on here forced to do this as NHS often refuses to test FT3 or antibodies

thyroiduk.org.uk/tuk/testin...

For thyroid including antibodies and vitamins

Medichecks Thyroid plus ultra vitamin or Blue Horizon Thyroid plus eleven are the most popular choice. DIY finger prick test or option to pay extra for private blood draw. Both companies often have special offers, Medichecks usually have offers on Thursdays, Blue Horizon its more random

If you can get GP to test vitamins and antibodies then cheapest option for just TSH, FT4 and FT3 £29 (via NHS private service )

monitormyhealth.org.uk/thyr...

come back with new post once you get results