Pharmacology True statement regarding methadone are all EXCEPT A It is a long acting u-receptor agonist B It is rapidly absorbed from the gastrointestinal tract and is detected in plasma 30 minutes after oral administration C The primary use of methadone is relief of chronic pain D The onset of analgesia is 30-60 minutes after parenteral administration and 1-2 hours after oral administration π‘ Explanation True statement regarding methadone are all EXCEPT β Correct Answer: D. The onset of analgesia is 30-60 minutes after parenteral administration and 1-2 hours after oral administration