Kanye West and his wife, Bianca Censori, have claimed that a Beverly Hills dentist recklessly supplied West with "dangerous" amounts of nitrous gas.

They allege this led to a chemical dependency that caused neurological damage and "mood instability".

New York-based lawyer Andrew Cherkasky has confirmed that his firm outlined the couple's claims in a letter sent to Dr Thomas Connelly on Thursday.

The letter informs the dentist that a malpractice lawsuit will be filed on behalf of the couple at the end of 90 days.

"I can confirm we represent Ye and Bianca, and I can confirm the authenticity of the letter served today," Cherkasky told Rolling Stone.

The letter was initially shared by West's sometime spokesperson, Milo Yiannopoulos, who posted it on X.

"Our clients intend to file a lawsuit against you for medical malpractice, professional negligence, and related tortious and contractual violations stemming from your treatment of Ye," the letter read.

According to the document, Connelly started treating West in early 2024, performing various dental procedures, and supplying him with nitrous oxide in "quantities and frequencies that had no legitimate dental or medical justification".

He claims Connelly went on to provide nitrous gas to West for "purely recreational use" and instructed the rapper on how to self-administer.

The letter further alleges that Connelly took advantage of West's vulnerable state to allegedly charge him $50,000 a month for the "continuous supply" of nitrous oxide and related services.

West has been making headlines over the past few months for his far-right and antisemitic tirades posted on social media.