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
Tolerance develops to all of the following actions of opioid except:
assistant
The correct answer is  Ref: Katzung 11/e p539 Tolerance cannot develop to 3Cs *Constipation *Constriction of pupil *Convulsions