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How Long Does Methadone Stay In The System?

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Posted on Thu, 11 Feb 2016
Question: How long does methadone stay in the system after discontinued ? My email is YYYY@YYYY
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Answered by Dr. Saad Sultan (11 minutes later)
Brief Answer:
stays upto 48 hours

Detailed Answer:
Welcome at HCM
I am Dr Saad Sultan and will be answering your query. I have read and understood your health concerns...
After oral administration, this drug start causing its effect within an hour and maximum plasma concentration is achieved from 2 to 8 hours. After this, its concentration starts decreasing. It is metabolized in liver and excreted in urine.
It normally stays up to 48 hours in the system but clinical effect is usually over after 8 hours of administration and therefore requires repeated dose.
Hope it helps
If you have any query feel free to ask.
Regards
Dr Saad Sultan
Note: For more detailed guidance, please consult an Internal Medicine Specialist, with your latest reports. Click here..

Above answer was peer-reviewed by : Dr. Yogesh D
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Answered by
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Dr. Saad Sultan

General & Family Physician

Practicing since :2013

Answered : 1049 Questions

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How Long Does Methadone Stay In The System?

Brief Answer: stays upto 48 hours Detailed Answer: Welcome at HCM I am Dr Saad Sultan and will be answering your query. I have read and understood your health concerns... After oral administration, this drug start causing its effect within an hour and maximum plasma concentration is achieved from 2 to 8 hours. After this, its concentration starts decreasing. It is metabolized in liver and excreted in urine. It normally stays up to 48 hours in the system but clinical effect is usually over after 8 hours of administration and therefore requires repeated dose. Hope it helps If you have any query feel free to ask. Regards Dr Saad Sultan