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
The first drug used as local anaesthetic is ?
assistant
The correct answer is  Ans. is'a' i.e., CocaineCocaine was the first local anaesthetic used by Carl Koller. It was used for anaesthetizing cornea.