How to take T3/T4 combo: I was prescribed a T3/T... - Thyroid UK

Thyroid UK

137,624 members161,395 posts

How to take T3/T4 combo

beaton profile image
11 Replies

I was prescribed a T3/T4 combo. back in April from the endo at the NHS hospital in Truro. He prescribed 50 mcg. T4 and 10 mcg. T3 twice a day.(100 T4 and 20 T3). My GP upped the dose in May to 20 mcg. T3 and 50 mcg. T4 twice a day. The T3 was to high so I dropped it back to 10 mcg. twice a day. But there has been a shortage during these months and so I haven't been able to get a routine going. I got a new prescription today of T3. (got plenty of T4 in hand.) The prescription reads 20 mcg. T3 twice a day. Silly man got it wrong again.

The question is :- How much should I take and how often? bearing in mind I have been without T3 and I am feeling under medicated. I was taken the T4 at night and mid morning,about twelve hours apart and well away from food. Now I have to add some T3,should I take it at the same time or mid way between the T4???

Written by
beaton profile image
beaton
To view profiles and participate in discussions please or .
Read more about...
11 Replies
merissa profile image
merissa

T3 prescription from truro? I was told that via gp that this medication can not be accessible. Did you see Dr d b endo there? Xxx

beaton profile image
beaton in reply to merissa

Hi Merissa,I was to see Dr S C but as is normal he was on leave and I saw his sidekick a little foreign guy with a big chip on his shoulder called A R. but give him his dues on month later i got T3.from the hospital which was followed up by the GP. x

merissa profile image
merissa in reply to beaton

Hmmm , let's see how I get on, has the medication helped? Did you have conversion problems. Love to know who your endo was? Xx

Jane104 profile image
Jane104

Hi, you shouldn't need to split the T4 part of your dose, only the T3 part if you feel you need to (some people don't). I'm not a doctor but if I were you I'd start with the 10mcg twice a day that you felt comfortable with before and see how you feel after a week or so. If your GP has prescribed 20mcg x 2 per day then you have room to adjust either or eventually both doses a little if you find they're not working.

in reply to Jane104

I am on a T4/T3 combo and take my T4 all in one go at night. However, my T3 was prescribed as 20mcg split into 2 doses but the GP wrote the prescription as 20mcg x 2 = 40mcg a day. I couldn't tolerate 20mcg in one day at first and ended up on just 10mcg once per day. Have now brought that up to 15mcg a day. I think I also have B12 and folate issues as the combo is not working as well as I had hoped although I do feel some improvement.

beaton profile image
beaton in reply to

Thanks Jan,Are you sure you are not me? You seem to have the same prescription. I've just upped my T3 to 3x 10 mcg..It's early days but i hope it will work.x

beaton profile image
beaton in reply to Jane104

Thanks Janericat,I shall start taking 100 mcg. T4 at night. I'm up to 30 mcg. T3 (3 doses.) durring the day. Hope it will work.x

Hello. Curious about doctors in Cornwall - I'm moving there in August and would really appreciate any input as to who to see (GP and endo). Can you message me with suggestions please? Thanks

beaton profile image
beaton in reply to

What area??

in reply to beaton

Treswithian Downs

beaton profile image
beaton in reply to

Sorry don't know the area,good luck.xx

You may also like...

Results help since taking combo of t4/t3….

compare. Most recent blood test results taking t4/t3 (taking 100 levo and 20mcg T3): Free...

4 Weeks in T3 T4 combo

this level straight away. I started with 2.5 twice a day for a week with T4 at 125 everything fine...

How changin from combo t4/t3 to NDT erfa

T4 feeling like a turtle, but I'm actually in combo 100mcgt4 +25mcg t3. I feel so well, I want to...

Results - anyone on T3 /t4 combo?

overactive? However for the past 4 years I’ve been taking medication for an under active thyroid....

Starting T4/T3 combo therapy

from 125 to 100 daily and start with a ¼ t3 pill per day. My questions are: 1. Should I take this...