<prompt> Which of the following drug is commonly used in narcoanalysis ?Atropine sulfateScopolamine hydrochloridePhenobarbitoneMorphine  <response>: Controlled administration of intravenous hypnotics to obtain information from subjects who are unable or unwilling to provide it otherwise, is known as Narcoanalysis or Narcosynthesis.Drugs used for narcoanalysis are:EthanolScopolamineTemazepamBarbiturates like Thiopentone and AmobarbitalThese drugs are also known as truth drug or truth serum.Phenobarbitone is not used, rather amobarbital is used for narcoanalysis. 