Dawn Butler, of Brent Central, was told to leave the chamber by temporary deputy speaker Judith Cummins when she refused to withdraw her words in a Commons debate.
The MP drew attention to disputed claims made by the Prime Minister including that the link between Covid-19 infection and serious disease and death had been severed.
Ms Butler said: “Poor people in our country have paid with their lives because the Prime Minister has spent the last 18 months misleading this House and the country over and over again.”
She added: “It’s dangerous to lie in a pandemic. I am disappointed the Prime Minister has not come to the House to correct the record and correct the fact that he has lied to the House and the country over and over again.”
Ms Cummins intervened with the words: “Order! Order! I’m sure that the member will reflect on her words she’s saying and perhaps correct the record.”
Ms Butler replied: “What would you rather – a weakened leg or a severed leg?
“At the end of the day the Prime Minister has lied to this House time and time again. It’s funny that we get in trouble in this place for calling out the lie rather than the person lying.”
Ms Cummins once again urged Ms Butler to “reflect” and withdraw her words but she didn’t.
Ms Butler replied: “I’ve reflected on my words and somebody needs to tell the truth in this House that the Prime Minister has lied.”
Ms Cummins then ordered Ms Butler to “withdraw immediately from the House for the remainder of the day’s sitting”.
Ms Butler left her seat and exited the chamber.