Roseanne Barr, fresh off having her show cancelled by ABC for a series of racist tweets yesterday, tweeted today, in a tweet since deleted, blaming ‘2am ambien tweeting’ for her racist tirade.

Not willing to accept blame for her behavior, drug manufacterer Sanofi responded on Twitter in rapid fashion:

Barr since deleted the original tweet and has chosen to lash out instead.  SHe’s blamed everyone from Wanda Sykes to the show’s cast and writers for throwing her under the bus.  And then some of those tweets were deleted.

It was just yesterday Barr promised she was quitting Twitter.