From Wikipedia:

Soviet dissidents, including medical staff, have reported several times on the use of haloperidol [Haldol – editor] in the Soviet Union for punitive purposes or simply to break the prisoners’ wills.[15][16][17]

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[youtube=http://www.youtube.com/watch?v=owiN4LSV-h4]‘US drugged for false Gitmo confessions’

Published on Jul 13, 2012 by 

Detainees in secret US prisons were drugged with mind-altering substances – a Pentagon report has revealed prisoners were interrogated while on medication, putting their evidence into question. Investigative journalist Jason Leopold was one of those who requested the release of this information. He says the US was just looking to get confessions, no matter whether they were true or false.