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It is an observation that this article appeared in the paper BMJ [General Practice edition] opposite an advert for liothyronine, where the cost changes have been huge with little justification.
In 2016, the 28-day National Health Service (NHS) cost of liothyronine in the UK increased dramatically from about £4·50 to £258·19.
At the same time, there is quite a large social media drive suggesting that 'cheap' thyroxine may not work if people are still tired and that people should ask their doctors to prescribe the vastly more expensive product. Though there may be a subgroup of people with genetic changes where this might be the case, it is not possible to check for these within the UK system.