Elon Musk has denied explosive allegations published by The New York Times claiming he heavily used illicit substances—including ketamine, ecstasy, and psychedelic mushrooms—during his time in the Trump administration.

The report, published Friday, cited anonymous sources familiar with Musk’s behavior and claimed the billionaire was “using drugs far more intensely than previously known.” It alleged that Musk’s ketamine use was frequent enough to affect his bladder, and that he regularly carried a medication box containing about 20 pills, including Adderall.

Responding on X (formerly Twitter) on Saturday, Musk dismissed the accusations outright: “Also, to be clear, I am NOT taking drugs! The New York Times was lying their ass off.” He acknowledged trying prescription ketamine in the past, stating it helped with depression, but insisted he hasn’t taken it in years: “This [is] not even news.”

The Times also raised questions about Musk’s behavior during his time leading the Department of Government Efficiency (DOGE), a Trump-created agency aimed at reducing federal bureaucracy. The article alleged that Musk displayed erratic behavior, insulted cabinet members, and even made a gesture many perceived as a Nazi-style salute—claims that remain unverified.

On Thursday, Musk announced his departure from DOGE, saying he was stepping down as a government employee but that the agency would continue its work. He thanked Trump “for the opportunity to reduce wasteful spending.”

Despite Musk’s resignation, Trump later said the billionaire is “really not leaving” and would remain involved.

The NYT report also highlighted recent tensions between Musk and administration officials, including Secretary of State Marco Rubio and Transportation Secretary Sean Duffy. Musk has also publicly criticized Trump’s latest spending bill, warning that it undermines DOGE’s mission and increases the national deficit.

As of now, neither the White House nor DOGE has officially responded to the drug use allegations.