system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Knockout drops are -
assistant
The correct answer is  Ans. is 'b' i.e., Choral hydrate o The action of choral hydrate is so rapid that is has been given the name of'Knockout drops',o Mickey Finn: combination of choral hydrate and alcohol.