US government and its powerful pharmaceutical industry want the NHS to pay more for their medicines which are much more expensive across the Atlantic. They want to remove the UK’s ability to block American drugs not deemed “value for money” and restrict our powers to allow cheaper alternatives to be prescribed to patients which save the NHS hundreds of millions of pounds a year.
According to research carried out for the programme, the cost to the UK government could run into the billions, approximately £27 billion, wiping out the potential Brexit bonus for the NHS promised by Boris Johnson.
From Channel 4 programme 'Dispatches', I'll try and post the link.
https://www.channel4.com/press/news/trumps-plan-nhs-channel-4-dispatches