The following is not true of morphine:
A. Its 2-glucuronide metabolite is an active
analgesic
B. Its active metabolite penetrates blood-brain
barrier better than morphine
C. Its oral: parenteral activity ratio is 1:4
D. It undergoes enterohepatic cycling

1 Answer

Answer :

B. Its active metabolite penetrates blood-brain
barrier better than morphine

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