People question the legality or the mere existence of sodium pentothal because of "mythical" references between stories. One such show (broadcast on abc) is Marvels Agents of S.H.I.E.L.D. Truth serum is a lethal injection that injected through the bloodstream and takes effect immediately. The victim then, without control of themselves, go through an episode of free association. The effects are said to work for exactly on hour. Video link below: https://www.youtube.com/watch?v=GPqNnLJdGOs
Sodium Pentothal is only distributed to those who are licensed to do so (ex. Doctors, Nurse, Physicians), making it illegal to administer the drug to others. The effects of Sodium Pentothal are strong and are often used for abused reasons such as date-rape. Alcohol is debated on whether it is to be considered a type of truth serum because the intoxication effects are similar to that of Sodium Pentothal. Others debated on whether it was a barbaric and right violating drug, while others thought it was necessary in extreme cases such as deep interrogation (cold war paranoia, and 9/11 incident)
Little fact: In a court case in 1963, the Supreme Court ruled that the use of Sodium Pentothal was unconstitutionally coerced.