<prompt> Which is not used for narcoanalysisScopolamineHyoscineThiopentoneKetamine  <response>: Drugs used for narcoanalysis are- Thiopentone Sodium Pentothal Amobarbital Sodium amytal Scopolamine Hyoscine Reference: Kaplon and sadock, 11 th edition, synopsis of psychiatry, 11 th edition, pg no. 945 