Carbimazole side effects help

[Imoutragious]

hello,

I’ve just started 20mg of Carbimazole twice daily and I’m starting to experience a bit of nausea.

I have a phobia of being sick and this nausea feels extra unpleasant and panic making!

Does anyone have any advice as to how long this might last? (As in nausea so bad it leads to vomiting)

I’d be very grateful to hear about more positive experiences

thanks in advance

[PurpleNails Administrator]

Welcome to forum.

Most don’t experience sickness or those that do find it is mild & it eases very quickly.

If you’re finding it difficult to manage you must let your doctor know. On occasions Drs will prescribe an addition medication to ease it. If that’s not suitable there is an alternative anti thyroid called Propylthiouracil (PTU). Some do better if switched. Carbimazole is preferred as less dose & pills are required compared to PTU. PTU is thought to be harsher on liver.

It could also be that you are reacting to one of the pill ingredients & a different brand might not cause the same issue.

40mg carbimazole is quite a high starting dose. We sometimes suggest 3 or 4 doses split throughout day. So you could take 10mg 4x a day to lower the impact of a higher dose at once.

What has the doctor done to determine the cause of your hyper?

Have TSI or TRab antibodies been tested?

It’s important to confirm your hyper is continuous as often it can be temporary. Early stages of Hashimoto’s / autoimmune thyroiditis cause fluctuations prior to levels naturally drop & becoming low or hypothyroid. Carbimazole incorrect treatment in those cases.

If you have access to any results share on here so we can explain further. Many have online access to records or obtain a printout with lab ranges to monitor own records.

Do read the patients leaflet carefully. There can be rare side affects which you need to be aware of.

I been taking carbimazole for over 5 years although most do not remain on antithyroid medication for this long.

[Fruitandnutcase]

I agree with what Purple Nails says. I started on 20mcg, it didn’t make any difference so after four weeks I doubled it to 40mcg a day - I took it all at the same time but I had no problems with the carb at all and I made up my mind that should I not go to remission then I would want to stay on carb long term.

You need to speak to someone - your doctor or the endo who is in charge of your case.

[pennyannie]

Hello Imoutragious and welcome to the forum :

Can you give forum members a little more information about yourself -

Why have you been an Anti Thyroid drug - what symptoms took you to the doctor ?

All an AT drug does is semi block your own new daily production of thyroid hormones - T3 and T4 - and slowly these 2 vital hormones should fall back down into range and your symptoms relieved.

Do you have online access to your medical records and can see any readings of a -

TSH, T3 and T4 and or initials of TPO - TgAB- TSI - Trab - with a number - or a reading of a

TSH / Thyroid Receptor Blocking or Stimulating antibody ?

[Cooper75]

Hi there, really sorry to hear you've got side effects - I had vomiting for just a few days and nausea/motion sickness for about a week with 20mg once daily. So for me the side effects stopped quickly, although obviously I was on half of your dose. I found that taking the carbimazole after eating seemed to help. Hope you feel better soon!