Bill Cosby’s trial for sexual assault begins in Pennsylvania
The drugs, called Quaaludes, are a sedative that was widely used recreationally in the US in the 1970s.
However Judge Steven O’Neill has ruled that the court will not hear about the 2006 civil case. Neither will jurors hear from Mr Cosby’s many other accusers.
- Cosby victim ‘paralysed’ by drugs during alleged assault
- The rise and fall of Quaaludes
What is Mr Cosby’s defence?
Mr Cosby says his encounter with Ms Constand was consensual.
He also says he offered women drugs as a way to encourage them to relax rather than a way to render them helpless.