Bill Cosby has acknowledged he obtained drugs to give to women he wanted to have sex with during the 1960s and '70s.
He has been accused of — but hasn't admitted to — sexual assault and rape.
As early as the late 1960s, people at dance clubs were using quaaludes, known then as "disco biscuits." By the '80s, they were outlawed.
Like other drugs, quaaludes affect our brain chemistry by altering the levels of neurotransmitters, the chemical messengers that pass along the signals that control our thinking and behavior.
While the drug was ineffective against the disease, it appeared to work as a sedative.