CBS 3’s Joe Holden, and KYW Newsradio’s Jim Melwert contributed to this story.

PHILADELPHIA (CBS/AP) — Prosecutors hoping to use Bill Cosby’s explosive deposition testimony about getting quaaludes to give women in his sexual-assault trial also want to use references he made about trying to slip women the aphrodisiac Spanish fly.

A motion from prosecutors point to page 169 of Bill Cosby’s “Childhood”, to a passage where Cosby “recounts a memory from his youth” where he and his friends seek out Spanish Fly.

Cosby describes Spanish Fly in his book as, quote, “An aphrodisiac so potent that it could have made Lena Horne surrender to Fat Albert.”

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Prosecutors say that shows Cosby has knowledge of the date-rape drug.

They say it shows Cosby has a – in prosecutor’s words, “willingness and motive to push chemicals to obtain sex from the otherwise unwilling victim.”

Cosby’s lawyers want the judge to exclude his deposition testimony about quaaludes and his discussion of extramarital liaisons spanning 50 years.

Spanish fly is made from a green beetle called the Spanish fly. Cosby says in the “Childhood” book he and his friends needed the Spanish fly potion because girls were “never in the mood” for them.

A hearing on the pretrial evidence is scheduled Monday.

(Copyright 2017 by The Associated Press. All Rights Reserved.)