Boris Johnson has said the chances of a Brexit deal are “touch and go” – having previously said the odds of a no-deal Brexit were “a million to one”.
In a BBC interview at the G7 summit in France, he said it “all depends on our EU friends and partners”.
When pressed on the chances, he said: “I think it’s going to be touch and go. But the important thing is to get ready to come out without a deal.”
Mr Johnson has repeatedly said the UK will leave the EU on 31 October.
Asked if people would still be able to get their medicine if there was a no-deal Brexit, the prime minister said: “That is certainly a guarantee that we can make.”
But he added: “I do not want at this stage to say there won’t be unforeseen difficulties.”
Mr Johnson has previously said the UK must leave on 31 October “deal or no deal”, but that the chances of a no-deal Brexit happening are a “million to one”.
However, speaking at the G7 summit on Sunday, he said: “I think in the last few days there has been a dawning realisation in Brussels and other European capitals what the shape of the problem is for the UK.”
He said he was an “optimist” and thought the EU would understand there is an “opportunity to do a deal”.
“I think it’s going to be touch and go but the important thing is to get ready to come out without a deal,” he added.