Which of the following is a metabolite of heroin?
Question and options
Which of the following is a metabolite of heroin?
- 6-Monoacetylmorphine
- N-acetyl-p-benzoquinone imine
- Triacetylmorphine
- Vanillylmandelic acid
Answer and explanation
Correct answer: A - 6-Monoacetylmorphine
Heroin (diacetylmorphine) is rapidly deacetylated to 6-monoacetylmorphine, a specific marker of heroin use, and then to morphine. NAPQI is from paracetamol and VMA from catecholamines.
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