The President has previoudly said hydroxychloroquine can treat coronavirus and has touted it as preventative.
But on Sunday Dr Fauci was asked by a reporter about the effectiveness of the drug when he was interrupted by Trump.
The president interjected: “You know how many times he’s answered that question: 15 times.
“You don’t have to answer that question,
“He’s answered that question 15 times.”
Fauci has warned Americans not to consider the drug a “knock out” in regards to its effectiveness.
He said to Fox & Friends on Friday: “We’ve got to be careful that we don’t make that majestic leap to assume that this is a knockout drug.
“We still need to do the kinds of studies that definitely prove whether any intervention is truly safe and effective.”
Hydroxychloroquine is primarily used to treat lupus and arthritis.
Hydroxychloroquine can’t be used by all Americans as treatment.
It has a long list of side effects, with some experiencing slowing the heartbeat, symptoms of heart failure, worsening of skin conditions and stomach and abdominal pain.
The mental health side effects include anxiety, depression, rare thoughts of suicide and hallucinations.
Last week, the FDA issued emergency authorization for the use of the anti-malarial drug for some coronavirus patients.
The US has seen 336,550 cases of coronavirus, with 9,610 dying.
Despite this, the president started his press briefing on an upbeat note, suggesting hope for the pandemic that has gripped America.
He said: “We’re starting to see light at the end of the tunnel.
“And hopefully in the not-too-distant future we’ll be very proud of the job we all did.”