Roseanne Barr has blamed sleeping pills for her tweet likening a black former Obama aide to an ape.
The TV star said what she did was "unforgiveable" and, while asking fans not to defend her actions, tried to explain away the post as having been caused by the effects of the sedative Ambien.
A spokeswoman for Sanofi, the pharmaceutical company that makes Ambien, said in response to Barr's tweets about taking the sedative: "While all pharmaceutical treatments have side effects, racism is not a known side effect of any Sanofi medication."
http://www.bbc.co.uk/news/world-us-canada-44294632