Boris Johnson is reported to be demanding the Cabinet increase NHS funding by £100 million a week.
Ben Bradshaw MP, leading supporter of the Open Britain campaign, said:
“Few ministers in modern history have done more to undermine our NHS than Boris Johnson.
“His lies about how Brexit would deliver £350m a week for the health service have fatally damaged public trust. And the reality of Brexit so far has been a weakened health service with fewer resources and a Brexodus of nurses and doctors.
“The reality is that Brexit is today the biggest threat facing the NHS. If Boris Johnson and his Cabinet colleagues were genuinely concerned about what is happening on the front-line they would be fighting to stay in the Single Market, rather than pushing for a hard and destructive Brexit.”