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'Racism is not a known side effect,' Ambien manufacturer replies to Roseanne Barr

Last Updated May 30, 2018 at 11:47 am EDT

FILE - In this March 23, 2018, file photo, Roseanne Barr arrives at the Los Angeles premiere of "Roseanne" on Friday in Burbank, Calif. Barr has apologized for suggesting that former White House adviser Valerie Jarrett is a product of the Muslim Brotherhood and the "Planet of the Apes." Barr on Tuesday, May 29, tweeted that she was sorry to Jarrett "for making a bad joke about her politics and her looks." Jarrett, who is African-American, advised Barack and Michelle Obama. (Photo by Jordan Strauss/Invision/AP, File)

NEW YORK, N.Y. – Roseanne Barr is partly blaming Ambien for the tweet that led to her show’s cancellation, but the maker of the insomnia drug quickly retorted that “racism is not a known side effect.”

Hours after ABC axed her show for her offensive tweet about former Obama adviser Valerie Jarrett — and quickly breaking a promise to stay off Twitter — the comedian was back on the social media platform.

She urged people not to defend her and said of her Jarrett tweet that she was “ambien tweeting” at 2 a.m.

That led to the response on Twitter by the drug maker Sanofi.