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
Which of the following anaesthetic agents has the least analgesic effect?
assistant
The correct answer is  N2O is a potent analgesic but not a potent anesthetic. Halothane is a good anaesthetic but poor analgesic.