Roseanne Barr has "done some weird things on Ambien".
The 65-year-old actress previously blamed the drug, which is typically used as a treatment for sleeping problems, for her offensive tweet about Valerie Jarrett, a senior adviser to former US President Barack Obama, and she's now claimed the medication causes her to behave in strange ways.
She revealed: "Well, I've done some weird things on Ambien and I think a lot of people have. I've heard from thousands of people about it."
Roseanne's eponymous sitcom was cancelled earlier this year after she likened Jarrett to an ape on Twitter.
But in a soon-to-air TV interview on The Dr. Oz Show, the veteran star has once again suggested Ambien may have been partially responsible for her ill-advised tweet.