Pharmacology Methadone is used in the management of opioid addiction because: A Its analgesic activity is less than that of morphine B It is an opioid receptor antagonist C It is not addictive D It is longer acting and causes milder withdrawal symptoms 💡 Explanation Methadone is used in the management of opioid addiction because: ✓ Correct Answer: D. It is longer acting and causes milder withdrawal symptoms