Endocrine Abstracts

A 54 years old female with no significant past medical history was referred by her GP with thyrotoxic symptoms which were not improving on Carbimazole 40 mg daily over the last 3 months in spite of good compliance with the drug. Her initial FT4 was 49.0 pmol/l with TSH suppressed to <0.01 and she was started on Carbimazole 20 mg which a month later was increased to 40 mg/day when there was no improvement in her TFTs. Her TFTs at this point showed FT4 ...