VICE take a look at scopolamine, also known as “borrachero” (“get-you-drunk”) and “The Devil’s Breath”, the drug which effectively eliminates a person’s free will. It’s used in Colombia in a variety of crimes from date rape and robbery to organ harvesting. Unsurprisingly, scopolamine has been tested by the CIA as a “truth serum”, although the agency’s website states that it was disqualified as a “truth” drug due to the side effects.
“Among the most disabling of the side effects are hallucinations, disturbed perception, somnolence, and physiological phenomena such as headache, rapid heart, and blurred vision, which distract the subject from the central purpose of the interview. Furthermore, the physical action is long, far outlasting the psychological effects. Scopolomine continues, in some cases, to make anesthesia and surgery safer by drying the mouth and throat and reducing secretions that might obstruct the air passages. But the fantastically, almost painfully, dry “desert” mouth brought on by the drug is hardly conducive to free talking, even in a tractable subject.”
NASA have also used scopolamine to assist in training people in environments with altered gravity, mixing it with dexedrine to make scop-dex.