Pharmacology Which of the following is TRUE for morphine : A Tolerance to all its actions except sedation and euphoria B Tolerance to all side effects except constipation and miosis. C It is a peripherally acting analgesic. D It has no abuse potential. 💡 Explanation Which of the following is TRUE for morphine : ✓ Correct Answer: B. Tolerance to all side effects except constipation and miosis.