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Tuesday, May 17, 2011 steph, Community Member, asks

Q: How long will melatonin stay in your system?

I took a 3mg pill of melatonin. How long does it stay in the system?

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Answers (1)
5/18/11 5:38pm

Hi Steph,


The half-life of melatonin is ~30 minutes to 2 hours. However, the amount of time it may take to clear from your system may be dependent on how long you've been using the medication. I recommend discussing with your physician.


All the best,

Lisa Nelson RD

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By steph, Community Member— Last Modified: 09/10/14, First Published: 05/17/11