The woman whose sex abuse lawsuit filed against Bill Cosby led to the US comedian admitting to obtaining Quaaludes has asked a judge to release Cosby's full deposition.

Andrea Constand has asked a judge to release all the relevant material including the transcript of questions Cosby answered under oath.

Constand's lawyer, Dolores Troiani, argued in a sanctions motion that Cosby, along with his lawyers and agents, broke the confidentiality agreement that sealed the 2006 court settlement with public comments while she has been powerless to respond, her lawyer said.

Troiani wrote: "The release of these documents will assist other women who have been victimised and bring awareness to the fact that sexual assault is not just committed with a gun or knife but is also committed by mentors who engage in exploitative behaviors."

Documents emerged this week after Associated Press obtained a court order that Cosby had admitted in a court deposition to obtaining Quaaludes with the intention of giving them to women he wanted to have sex with.

Cosby, aged 77, testified in 2005 that he gave the recreational sedative, developed in the 1950s as an unsuccessful treatment for malaria and illegal in the US for the last three decades, to at least one woman as well as "other people", according to the documents.

His lawyers objected to their release but Judge Eduardo Robreno ruled that because Cosby had "donned the mantle of public moralist", he had "voluntarily narrowed the zone of privacy that he is entitled to claim."

Cosby has never admitted to drugging any of the women who have accused him of doing so.