Thyroid UK

Carbimazole dose increase

Hi I was diagnosed hyperthyroid 6 months ago. I started off on 20mg of carbimazole daily and was on that dose for four months until my blood was in range. I was then told to take 10mg daily for one month and to then be on 5mg daily.

Went for a blood test Tuesday as have an endo appointment next week. GP has just phoned me to say that they have received a letter from endo to say they want me to increase my dose and now I'm back to 20mg daily.

Thought I was getting better but now I'm back to stage one 😔