Thyroid UK
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Worried about my meds for graves

I was taking 40mg of carbanizol but I got sickness and itching from it so I contacted my specialist who said that's fine I have your blood results and I'm leaving you a prescription. My daughter has collected it for me and I'm a bit shocked it's now propylthiouracil 400mg taken throughout the day I see my specialist in 3 weeks and I'll ask her then but I don't really want to take them. I've rang her number but she must of left. I know that a certain blood test hadn't been done and I had it taken last week. Is this a high dose or is it the norm. It worries me because I take so many pain meds for degenerate disc disease including morphine. Sorry to ask a lot of questions again x

2 Replies


Propylthirouracil (PTU) is prescribed for patients who have adverse reactions to Carbimazole. Your pharmacist should be able to advise whether 400mg PTU is equivalent to 40mg Carbimazole.


Thanks for the reply. My specialist rang last night and told me it's the equivalent of the other so that's put my mind at rest. Thanks again x


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